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Posted to jmeter-dev@jakarta.apache.org by se...@apache.org on 2008/05/27 20:06:01 UTC
svn commit: r660629 [3/18] - in /jakarta/jmeter/trunk/docs: ./ localising/
usermanual/
Modified: jakarta/jmeter/trunk/docs/usermanual/best-practices.html
URL: http://svn.apache.org/viewvc/jakarta/jmeter/trunk/docs/usermanual/best-practices.html?rev=660629&r1=660628&r2=660629&view=diff
==============================================================================
--- jakarta/jmeter/trunk/docs/usermanual/best-practices.html (original)
+++ jakarta/jmeter/trunk/docs/usermanual/best-practices.html Tue May 27 11:05:49 2008
@@ -1,461 +1,461 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<!--
- Licensed to the Apache Software Foundation (ASF) under one or more
- contributor license agreements. See the NOTICE file distributed with
- this work for additional information regarding copyright ownership.
- The ASF licenses this file to You under the Apache License, Version 2.0
- (the "License"); you may not use this file except in compliance with
- the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
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- See the License for the specific language governing permissions and
- limitations under the License.
--->
-
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- <!-- ====================================================================== -->
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- <!-- ====================================================================== -->
- <html>
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/>
-
-
-
- <title>JMeter - User's Manual: Best Practices</title>
- </head>
-
- <body bgcolor="#ffffff" text="#000000" link="#525D76">
- <table border="0" cellspacing="0">
- <!-- TOP IMAGE -->
- <tr>
- <td>
-<!-- Need to specify height otherwise iframe seems to grab extra -->
-<iframe src="http://www.apache.org/ads/halfbanner.html" height="102"
- style="border-width:0; float: left" frameborder="0" scrolling="no"></iframe>
-</td>
-<td align="left">
-<a href="http://jakarta.apache.org"><img width="505" height="48" src="../images/jakarta-logo.gif" alt="Jakarta" title="Jakarta" border="0"/></a>
-</td>
-<td align="right">
-<a href="http://jakarta.apache.org/jmeter/"><img width="221" height="102" src="../images/logo.jpg" alt="JMeter" title="JMeter" border="0"/></a>
-</td>
- </tr>
- </table>
- <table border="0" width="100%" cellspacing="4">
- <tr><td colspan="2">
- <hr noshade size="1"/>
- </td></tr>
-
- <tr>
- <!-- LEFT SIDE NAVIGATION -->
- <td width="20%" valign="top" nowrap="true">
- <p><strong>About</strong></p>
- <ul>
- <li> <a href="../index.html">Overview</a>
-</li>
- <li> <a href="../changes.html">Changes</a>
-</li>
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-</li>
- <li> <a href="../license.html">License</a>
-</li>
- <li> <a href="http://wiki.apache.org/jakarta-jmeter/JMeterCommitters">Contributors</a>
-</li>
- </ul>
- <p><strong>Download</strong></p>
- <ul>
- <li> <a href="http://jakarta.apache.org/site/downloads/downloads_jmeter.cgi">Download Releases</a>
-</li>
- <li> <a href="../nightly.html">Developer (Nightly) Builds</a>
-</li>
- </ul>
- <p><strong>Documentation</strong></p>
- <ul>
- <li> <a href="../usermanual/index.html">User Manual</a>
-</li>
- <li> <a href="../api/index.html">Javadocs</a>
-</li>
- <li> <a href="../localising/index.html">Localisation (Translator's Guide)</a>
-</li>
- <li> <a href="../building.html">Building JMeter and Add-Ons</a>
-</li>
- <li> <a href="http://wiki.apache.org/jakarta-jmeter">JMeter Wiki</a>
-</li>
- <li> <a href="http://wiki.apache.org/jakarta-jmeter/JMeterFAQ">FAQ (Wiki)</a>
-</li>
- </ul>
- <p><strong>Tutorials (PDF format)</strong></p>
- <ul>
- <li> <a href="../usermanual/jmeter_distributed_testing_step_by_step.pdf">Distributed Testing</a>
-</li>
- <li> <a href="../usermanual/jmeter_proxy_step_by_step.pdf">Recording Tests</a>
-</li>
- <li> <a href="../usermanual/junitsampler_tutorial.pdf">JUnit Sampler</a>
-</li>
- <li> <a href="../usermanual/jmeter_accesslog_sampler_step_by_step.pdf">Access Log Sampler</a>
-</li>
- <li> <a href="../extending/jmeter_tutorial.pdf">Extending JMeter</a>
-</li>
- </ul>
- <p><strong>Community</strong></p>
- <ul>
- <li> <a href="http://jakarta.apache.org/site/getinvolved.html">Get Involved</a>
-</li>
- <li> <a href="http://jakarta.apache.org/site/mail.html">Mailing Lists</a>
-</li>
- <li> <a href="http://jakarta.apache.org/site/cvsindex.html">SVN Repositories</a>
-</li>
- </ul>
- </td>
- <td width="80%" align="left" valign="top">
- <table>
- <tr>
- <td bgcolor="#525D76">
- <div align="right"><a href="index.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Index</font></a></div>
- </td>
- <td bgcolor="#525D76">
- <div align="right"><a href="boss.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Next</font></a></div>
- </td>
- <td bgcolor="#525D76">
- <div align="right"><a href="remote-test.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Prev</font></a></div>
- </td>
- </tr>
- </table>
- <br>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#525D76">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="best_practices"><strong>16. Best Practices</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- </blockquote>
- </p>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#525D76">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="limit_threads"><strong>16.1 Limit the Number of Threads</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<!--
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<!-- Content Stylesheet for Site -->
+
+
+<!-- start the processing -->
+ <!-- ====================================================================== -->
+ <!-- Main Page Section -->
+ <!-- ====================================================================== -->
+ <html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/>
+
+
+
+ <title>JMeter - User's Manual: Best Practices</title>
+ </head>
+
+ <body bgcolor="#ffffff" text="#000000" link="#525D76">
+ <table border="0" cellspacing="0">
+ <!-- TOP IMAGE -->
+ <tr>
+ <td>
+<!-- Need to specify height otherwise iframe seems to grab extra -->
+<iframe src="http://www.apache.org/ads/halfbanner.html" height="102"
+ style="border-width:0; float: left" frameborder="0" scrolling="no"></iframe>
+</td>
+<td align="left">
+<a href="http://jakarta.apache.org"><img width="505" height="48" src="../images/jakarta-logo.gif" alt="Jakarta" title="Jakarta" border="0"/></a>
+</td>
+<td align="right">
+<a href="http://jakarta.apache.org/jmeter/"><img width="221" height="102" src="../images/logo.jpg" alt="JMeter" title="JMeter" border="0"/></a>
+</td>
+ </tr>
+ </table>
+ <table border="0" width="100%" cellspacing="4">
+ <tr><td colspan="2">
+ <hr noshade size="1"/>
+ </td></tr>
+
+ <tr>
+ <!-- LEFT SIDE NAVIGATION -->
+ <td width="20%" valign="top" nowrap="true">
+ <p><strong>About</strong></p>
+ <ul>
+ <li> <a href="../index.html">Overview</a>
+</li>
+ <li> <a href="../changes.html">Changes</a>
+</li>
+ <li> <a href="../known_bugs.html">Known Bugs</a>
+</li>
+ <li> <a href="../license.html">License</a>
+</li>
+ <li> <a href="http://wiki.apache.org/jakarta-jmeter/JMeterCommitters">Contributors</a>
+</li>
+ </ul>
+ <p><strong>Download</strong></p>
+ <ul>
+ <li> <a href="http://jakarta.apache.org/site/downloads/downloads_jmeter.cgi">Download Releases</a>
+</li>
+ <li> <a href="../nightly.html">Developer (Nightly) Builds</a>
+</li>
+ </ul>
+ <p><strong>Documentation</strong></p>
+ <ul>
+ <li> <a href="../usermanual/index.html">User Manual</a>
+</li>
+ <li> <a href="../api/index.html">Javadocs</a>
+</li>
+ <li> <a href="../localising/index.html">Localisation (Translator's Guide)</a>
+</li>
+ <li> <a href="../building.html">Building JMeter and Add-Ons</a>
+</li>
+ <li> <a href="http://wiki.apache.org/jakarta-jmeter">JMeter Wiki</a>
+</li>
+ <li> <a href="http://wiki.apache.org/jakarta-jmeter/JMeterFAQ">FAQ (Wiki)</a>
+</li>
+ </ul>
+ <p><strong>Tutorials (PDF format)</strong></p>
+ <ul>
+ <li> <a href="../usermanual/jmeter_distributed_testing_step_by_step.pdf">Distributed Testing</a>
+</li>
+ <li> <a href="../usermanual/jmeter_proxy_step_by_step.pdf">Recording Tests</a>
+</li>
+ <li> <a href="../usermanual/junitsampler_tutorial.pdf">JUnit Sampler</a>
+</li>
+ <li> <a href="../usermanual/jmeter_accesslog_sampler_step_by_step.pdf">Access Log Sampler</a>
+</li>
+ <li> <a href="../extending/jmeter_tutorial.pdf">Extending JMeter</a>
+</li>
+ </ul>
+ <p><strong>Community</strong></p>
+ <ul>
+ <li> <a href="http://jakarta.apache.org/site/getinvolved.html">Get Involved</a>
+</li>
+ <li> <a href="http://jakarta.apache.org/site/mail.html">Mailing Lists</a>
+</li>
+ <li> <a href="http://jakarta.apache.org/site/cvsindex.html">SVN Repositories</a>
+</li>
+ </ul>
+ </td>
+ <td width="80%" align="left" valign="top">
+ <table>
+ <tr>
+ <td bgcolor="#525D76">
+ <div align="right"><a href="index.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Index</font></a></div>
+ </td>
+ <td bgcolor="#525D76">
+ <div align="right"><a href="boss.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Next</font></a></div>
+ </td>
+ <td bgcolor="#525D76">
+ <div align="right"><a href="remote-test.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Prev</font></a></div>
+ </td>
+ </tr>
+ </table>
+ <br>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#525D76">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="best_practices"><strong>16. Best Practices</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ </blockquote>
+ </p>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#525D76">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="limit_threads"><strong>16.1 Limit the Number of Threads</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
Your hardware's capabilities will limit the number of threads you can effectively
run with JMeter. It will also depend on how fast your server is (a faster server
gives makes JMeter work harder since it returns request quicker). The more
JMeter works, the less accurate its timing information will be. The more work
JMeter does, the more each thread has to wait to get access to the CPU, the more
inflated the timing information gets. If you need large-scale load testing, consider
-running multiple non-GUI JMeter instances on multiple machines.
- </p>
- </blockquote>
- </p>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#525D76">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="put_cookie_manager"><strong>16.2 Where to Put the Cookie Manager</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
- See
- <a href="build-web-test-plan.html#adding_cookie_support">
- Building a Web Test
- </a>
-
-for information.
- </p>
- </blockquote>
- </p>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#525D76">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="put_auth_manager"><strong>16.3 Where to Put the Authorization Manager</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
- See
- <a href="build-adv-web-test-plan.html#header_manager">
+running multiple non-GUI JMeter instances on multiple machines.
+ </p>
+ </blockquote>
+ </p>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#525D76">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="put_cookie_manager"><strong>16.2 Where to Put the Cookie Manager</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
+ See
+ <a href="build-web-test-plan.html#adding_cookie_support">
+ Building a Web Test
+ </a>
+
+for information.
+ </p>
+ </blockquote>
+ </p>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#525D76">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="put_auth_manager"><strong>16.3 Where to Put the Authorization Manager</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
+ See
+ <a href="build-adv-web-test-plan.html#header_manager">
Building an Advanced
-Web Test
- </a>
- for information.
- </p>
- </blockquote>
- </p>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#525D76">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="proxy_server"><strong>16.4 Using the Proxy Server</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
- Refer to
- <a href="../usermanual/component_reference.html#HTTP_Proxy_Server">HTTP Proxy Server</a>
+Web Test
+ </a>
+ for information.
+ </p>
+ </blockquote>
+ </p>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#525D76">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="proxy_server"><strong>16.4 Using the Proxy Server</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
+ Refer to
+ <a href="../usermanual/component_reference.html#HTTP_Proxy_Server">HTTP Proxy Server</a>
for details on setting up the proxy
server. The most important thing to do is filter out all requests you aren't
interested in. For instance, there's no point in recording image requests (JMeter can
-be instructed to download all images on a page - see
- <a href="../usermanual/component_reference.html#HTTP_Request">HTTP Request</a>
+be instructed to download all images on a page - see
+ <a href="../usermanual/component_reference.html#HTTP_Request">HTTP Request</a>
).
These will just clutter your test plan. Most likely, there is an extension all your files
share, such as .jsp, .asp, .php, .html or the like. These you should "include" by
-entering ".*\.jsp" as an "Include Pattern".
- </p>
- <p >
+entering ".*\.jsp" as an "Include Pattern".
+ </p>
+ <p >
Alternatively, you can exclude images by entering ".*\.gif" as an "Exclude Pattern".
Depending on your application, this may or may not be a better way to go. You may
also have to exclude stylesheets, javascript files, and other included files. Test
out your settings to verify you are recording what you want, and then erase and start
-fresh.
- </p>
- <p >
+fresh.
+ </p>
+ <p >
The Proxy Server expects to find a ThreadGroup element with a Recording Controller
under it where it will record HTTP Requests to. This conveniently packages all your samples under one
-controller, which can be given a name that describes the test case.
- </p>
- <p >
+controller, which can be given a name that describes the test case.
+ </p>
+ <p >
Now, go through the steps of a Test Case. If you have no pre-defined test cases, use
JMeter to record your actions to define your test cases. Once you have finished a
definite series of steps, save the entire test case in an appropriately named file. Then, wipe
clean and start a new test case. By doing this, you can quickly record a large number of
-test case "rough drafts".
- </p>
- <p >
+test case "rough drafts".
+ </p>
+ <p >
One of the most useful features of the Proxy Server is that you can abstract out
certain common elements from the recorded samples. By defining some
-
- <a href="functions.html">
- user-defined variables
- </a>
+
+ <a href="functions.html">
+ user-defined variables
+ </a>
at the Test Plan level or in
-
- <a href="../usermanual/component_reference.html#User_Defined_Variables">User Defined Variables</a>
+
+ <a href="../usermanual/component_reference.html#User_Defined_Variables">User Defined Variables</a>
elements, you can have JMeter automatically
replace values in you recorded samples. For instance, if you are testing an app on
server "xxx.example.com", then you can define a variable called "server" with the value of
"xxx.example.com", and anyplace that value is found in your recorded samples will be replaced
with "${server}".
-
- <p><table border="1" bgcolor="#bbbb00" width="50%" cellspacing="0" cellpadding="2">
- <tr><td> Please note that matching is case-sensitive.
- </td></tr>
- </table></p>
-
-
-
- </p>
- </blockquote>
- </p>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#525D76">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="user_variables"><strong>16.5 User variables</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ <p><table border="1" bgcolor="#bbbb00" width="50%" cellspacing="0" cellpadding="2">
+ <tr><td> Please note that matching is case-sensitive.
+ </td></tr>
+ </table></p>
+
+
+
+ </p>
+ </blockquote>
+ </p>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#525D76">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="user_variables"><strong>16.5 User variables</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
Some test plans need to use different values for different users/threads.
For example, you might want to test a sequence that requires a unique login for each user.
This is easy to achieve with the facilities provided by JMeter.
-
- </p>
- <p >
- For example:
- </p>
- <ul >
+
+ </p>
+ <p >
+ For example:
+ </p>
+ <ul >
-
- <li >
+
+ <li >
Create a text file containing the user names and passwords, separated by commas.
Put this in the same directory as your test plan.
-
- </li>
+
+ </li>
-
- <li >
+
+ <li >
Add a CSV DataSet configuration element to the test plan.
Name the variables USER and PASS.
-
- </li>
+
+ </li>
-
- <li >
+
+ <li >
Replace the login name with ${USER} and the password with ${PASS} on the appropriate
samplers
-
- </li>
+
+ </li>
-
- </ul>
- <p >
+
+ </ul>
+ <p >
The CSV Data Set element will read a new line for each thread.
-
- </p>
- </blockquote>
- </p>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#525D76">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="lean_mean"><strong>16.6 Reducing resource requirements</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ </blockquote>
+ </p>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#525D76">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="lean_mean"><strong>16.6 Reducing resource requirements</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
Some suggestions on reducing resource usage.
-
- </p>
- <ul >
-
-
- <li >
- Use non-GUI mode: jmeter -n -t test.jmx -l test.jtl
- </li>
-
-
- <li >
- Use as few Listeners as possible; if using the -l flag as above they can all be deleted or disabled.
- </li>
+
+ </p>
+ <ul >
+
+
+ <li >
+ Use non-GUI mode: jmeter -n -t test.jmx -l test.jtl
+ </li>
+
+
+ <li >
+ Use as few Listeners as possible; if using the -l flag as above they can all be deleted or disabled.
+ </li>
-
- <li >
+
+ <li >
Rather than using lots of similar samplers,
use the same sampler in a loop, and use variables (CSV Data Set) to vary the sample.
Or perhaps use the Access Log Sampler.
[The Include Controller does not help here, as it adds all the test elements in the file to the test plan.]
-
- </li>
+
+ </li>
+
+
+ <li >
+ Don't use functional mode
+ </li>
+
+
+ <li >
+ Use CSV output rather than XML
+ </li>
-
- <li >
- Don't use functional mode
- </li>
-
-
- <li >
- Use CSV output rather than XML
- </li>
-
-
- <li >
- Only save the data that you need
- </li>
-
-
- <li >
- Use as few Assertions as possible
- </li>
-
-
- </ul>
- </blockquote>
- </p>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#525D76">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="beanshell_server"><strong>16.7 BeanShell server</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ <li >
+ Only save the data that you need
+ </li>
+
+
+ <li >
+ Use as few Assertions as possible
+ </li>
+
+
+ </ul>
+ </blockquote>
+ </p>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#525D76">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="beanshell_server"><strong>16.7 BeanShell server</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
The BeanShell interpreter has a very useful feature - it can act as a server,
which is accessible by telnet or http.
-
- </p>
- <p><table border="1" bgcolor="#bbbb00" width="50%" cellspacing="0" cellpadding="2">
+
+ </p>
+ <p><table border="1" bgcolor="#bbbb00" width="50%" cellspacing="0" cellpadding="2">
<tr><td>
There is no security. Anyone who can connect to the port can issue any BeanShell commands.
These can provide unrestricted access to the JMeter application and the host.
-
- <b >
- Do not enable the server unless the ports are protected against access, e.g. by a firewall.
- </b>
-
-
- </td></tr>
- </table></p>
- <p >
+
+ <b >
+ Do not enable the server unless the ports are protected against access, e.g. by a firewall.
+ </b>
+
+
+ </td></tr>
+ </table></p>
+ <p >
If you do wish to use the server, define the following in jmeter.properties:
-
- </p>
- <pre >
+
+ </p>
+ <pre >
beanshell.server.port=9000
beanshell.server.file=../extras/startup.bsh
-
- </pre>
- <p >
+
+ </pre>
+ <p >
In the above example, the server will be started, and will listen on ports 9000 and 9001.
Port 9000 will be used for http access. Port 9001 will be used for telnet access.
The startup.bsh file will be processed by the server, and can be used to define various functions and set up variables.
The startup file defines methods for setting and printing JMeter and system properties.
This is what you should see in the JMeter console:
-
- </p>
- <pre >
+
+ </p>
+ <pre >
Startup script running
Startup script completed
Httpd started on port: 9000
Sessiond started on port: 9001
-
- </pre>
- <p >
+
+ </pre>
+ <p >
As a practical example, assume you have a long-running JMeter test running in non-GUI mode,
and you want to vary the throughput at various times during the test.
The test-plan includes a Constant Throughput Timer which is defined in terms of a property,
e.g. ${__P(throughput)}.
The following BeanShell commands could be used to change the test:
-
- </p>
- <pre >
+
+ </p>
+ <pre >
printprop("throughput");
curr=Integer.decode(args[0]); // Start value
@@ -468,196 +468,196 @@
curr += inc;
}
printprop("throughput");
-
- </pre>
- <p >
+
+ </pre>
+ <p >
The script can be stored in a file (throughput.bsh, say), and sent to the server using bshclient.jar.
For example:
-
- </p>
- <pre >
+
+ </p>
+ <pre >
java -jar ../lib/bshclient.jar localhost 9000 throughput.bsh 70 5 100 60
-
- </pre>
- </blockquote>
- </p>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#525D76">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="bsh_scripting"><strong>16.8 BeanShell scripting</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="bsh_overview"><strong>16.8.1 Overview</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </pre>
+ </blockquote>
+ </p>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#525D76">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="bsh_scripting"><strong>16.8 BeanShell scripting</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="bsh_overview"><strong>16.8.1 Overview</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
Each BeanShell test element has its own copy of the interpreter (for each thread).
If the test element is repeatedly called, e.g. within a loop, then the interpreter is retained
between invocations unless the "Reset bsh.Interpreter before each call" option is selected.
-
- </p>
- <p >
+
+ </p>
+ <p >
Some long-running tests may cause the interpreter to use lots of memory; if this is the case try using the reset option.
-
- </p>
- <p >
+
+ </p>
+ <p >
You can test BeanShell scripts outside JMeter by using the command-line interpreter:
-
- <pre >
+
+ <pre >
$ java -cp bsh-xxx.jar[;other jars as needed] bsh.Interperter file.bsh [parameters]
or
$ java -cp bsh-xxx.jar bsh.Interperter
bsh% source("file.bsh");
bsh% exit(); // or use EOF key (e.g. ^Z or ^D)
-
- </pre>
+
+ </pre>
-
- </p>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="bsh_variables"><strong>16.8.2 Sharing Variables</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="bsh_variables"><strong>16.8.2 Sharing Variables</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
Variables can be defined in startup (initialisation) scripts.
These will be retained across invocations of the test element, unless the reset option is used.\
-
- </p>
- <p >
+
+ </p>
+ <p >
Scripts can also access JMeter variables using the get() and put() methods of the "vars" variable,
-for example:
- <code >
- vars.get("HOST"); vars.put("MSG","Successful");
- </code>
+for example:
+ <code >
+ vars.get("HOST"); vars.put("MSG","Successful");
+ </code>
.
The get() and put() methods only support variables with String values,
but there are also getObject() and putObject() methods which can be used for arbitrary objects.
JMeter variables are local to a thread, but can be used by all test elements (not just Beanshell).
-
- </p>
- <p >
+
+ </p>
+ <p >
If you need to share variables between threads, then JMeter properties can be used:
-
- <pre >
+
+ <pre >
import org.apache.jmeter.util.JMeterUtils;
String value=JMeterUtils.getPropDefault("name","");
JMeterUtils.setProperty("name", "value");
-
- </pre>
+
+ </pre>
The sample .bshrc files contain sample definitions of getprop() and setprop() methods.
-
- </p>
- <p >
+
+ </p>
+ <p >
Another possible method of sharing variables is to use the "bsh.shared" shared namespace.
For example:
-
- <pre >
+
+ <pre >
if (bsh.shared.myObj == void){
// not yet defined, so create it:
myObj=new AnyObject();
}
bsh.shared.myObj.process();
-
- </pre>
+
+ </pre>
Rather than creating the object in the test element, it can be created in the startup file
defined by the JMeter property "beanshell.init.file". This is only processed once.
-
- </p>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- </blockquote>
- </p>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table>
- <tr>
- <td bgcolor="#525D76">
- <div align="right"><a href="index.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Index</font></a></div>
- </td>
- <td bgcolor="#525D76">
- <div align="right"><a href="boss.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Next</font></a></div>
- </td>
- <td bgcolor="#525D76">
- <div align="right"><a href="remote-test.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Prev</font></a></div>
- </td>
- </tr>
- </table>
- <br>
- </td>
- </tr>
-
- <tr><td colspan="2">
- <hr noshade size="1"/>
- </td></tr>
- <tr><td colspan="2">
- <div align="center"><font color="#525D76" size="-1"><em>
- Copyright © 1999-2008, Apache Software Foundation
- </em></font></div>
- </td></tr>
- </table>
- </body>
- </html>
-<!-- end the processing -->
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+ </p>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ </blockquote>
+ </p>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table>
+ <tr>
+ <td bgcolor="#525D76">
+ <div align="right"><a href="index.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Index</font></a></div>
+ </td>
+ <td bgcolor="#525D76">
+ <div align="right"><a href="boss.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Next</font></a></div>
+ </td>
+ <td bgcolor="#525D76">
+ <div align="right"><a href="remote-test.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Prev</font></a></div>
+ </td>
+ </tr>
+ </table>
+ <br>
+ </td>
+ </tr>
+
+ <tr><td colspan="2">
+ <hr noshade size="1"/>
+ </td></tr>
+ <tr><td colspan="2">
+ <div align="center"><font color="#525D76" size="-1"><em>
+ Copyright © 1999-2008, Apache Software Foundation
+ </em></font></div>
+ </td></tr>
+ </table>
+ </body>
+ </html>
+<!-- end the processing -->
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
Propchange: jakarta/jmeter/trunk/docs/usermanual/best-practices.html
------------------------------------------------------------------------------
svn:eol-style = native
Modified: jakarta/jmeter/trunk/docs/usermanual/boss.html
URL: http://svn.apache.org/viewvc/jakarta/jmeter/trunk/docs/usermanual/boss.html?rev=660629&r1=660628&r2=660629&view=diff
==============================================================================
--- jakarta/jmeter/trunk/docs/usermanual/boss.html (original)
+++ jakarta/jmeter/trunk/docs/usermanual/boss.html Tue May 27 11:05:49 2008
@@ -1,214 +1,214 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<!--
- Licensed to the Apache Software Foundation (ASF) under one or more
- contributor license agreements. See the NOTICE file distributed with
- this work for additional information regarding copyright ownership.
- The ASF licenses this file to You under the Apache License, Version 2.0
- (the "License"); you may not use this file except in compliance with
- the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
--->
-
-<!-- Content Stylesheet for Site -->
-
-
-<!-- start the processing -->
- <!-- ====================================================================== -->
- <!-- Main Page Section -->
- <!-- ====================================================================== -->
- <html>
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/>
-
-
- <meta name="author" value="Martin Ramshaw">
- <meta name="email" value="mramshaw@alumni.concordia.ca">
-
- <title>JMeter - User's Manual: My boss wants me to...</title>
- </head>
-
- <body bgcolor="#ffffff" text="#000000" link="#525D76">
- <table border="0" cellspacing="0">
- <!-- TOP IMAGE -->
- <tr>
- <td>
-<!-- Need to specify height otherwise iframe seems to grab extra -->
-<iframe src="http://www.apache.org/ads/halfbanner.html" height="102"
- style="border-width:0; float: left" frameborder="0" scrolling="no"></iframe>
-</td>
-<td align="left">
-<a href="http://jakarta.apache.org"><img width="505" height="48" src="../images/jakarta-logo.gif" alt="Jakarta" title="Jakarta" border="0"/></a>
-</td>
-<td align="right">
-<a href="http://jakarta.apache.org/jmeter/"><img width="221" height="102" src="../images/logo.jpg" alt="JMeter" title="JMeter" border="0"/></a>
-</td>
- </tr>
- </table>
- <table border="0" width="100%" cellspacing="4">
- <tr><td colspan="2">
- <hr noshade size="1"/>
- </td></tr>
-
- <tr>
- <!-- LEFT SIDE NAVIGATION -->
- <td width="20%" valign="top" nowrap="true">
- <p><strong>About</strong></p>
- <ul>
- <li> <a href="../index.html">Overview</a>
-</li>
- <li> <a href="../changes.html">Changes</a>
-</li>
- <li> <a href="../known_bugs.html">Known Bugs</a>
-</li>
- <li> <a href="../license.html">License</a>
-</li>
- <li> <a href="http://wiki.apache.org/jakarta-jmeter/JMeterCommitters">Contributors</a>
-</li>
- </ul>
- <p><strong>Download</strong></p>
- <ul>
- <li> <a href="http://jakarta.apache.org/site/downloads/downloads_jmeter.cgi">Download Releases</a>
-</li>
- <li> <a href="../nightly.html">Developer (Nightly) Builds</a>
-</li>
- </ul>
- <p><strong>Documentation</strong></p>
- <ul>
- <li> <a href="../usermanual/index.html">User Manual</a>
-</li>
- <li> <a href="../api/index.html">Javadocs</a>
-</li>
- <li> <a href="../localising/index.html">Localisation (Translator's Guide)</a>
-</li>
- <li> <a href="../building.html">Building JMeter and Add-Ons</a>
-</li>
- <li> <a href="http://wiki.apache.org/jakarta-jmeter">JMeter Wiki</a>
-</li>
- <li> <a href="http://wiki.apache.org/jakarta-jmeter/JMeterFAQ">FAQ (Wiki)</a>
-</li>
- </ul>
- <p><strong>Tutorials (PDF format)</strong></p>
- <ul>
- <li> <a href="../usermanual/jmeter_distributed_testing_step_by_step.pdf">Distributed Testing</a>
-</li>
- <li> <a href="../usermanual/jmeter_proxy_step_by_step.pdf">Recording Tests</a>
-</li>
- <li> <a href="../usermanual/junitsampler_tutorial.pdf">JUnit Sampler</a>
-</li>
- <li> <a href="../usermanual/jmeter_accesslog_sampler_step_by_step.pdf">Access Log Sampler</a>
-</li>
- <li> <a href="../extending/jmeter_tutorial.pdf">Extending JMeter</a>
-</li>
- </ul>
- <p><strong>Community</strong></p>
- <ul>
- <li> <a href="http://jakarta.apache.org/site/getinvolved.html">Get Involved</a>
-</li>
- <li> <a href="http://jakarta.apache.org/site/mail.html">Mailing Lists</a>
-</li>
- <li> <a href="http://jakarta.apache.org/site/cvsindex.html">SVN Repositories</a>
-</li>
- </ul>
- </td>
- <td width="80%" align="left" valign="top">
- <table>
- <tr>
- <td bgcolor="#525D76">
- <div align="right"><a href="index.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Index</font></a></div>
- </td>
- <td bgcolor="#525D76">
- <div align="right"><a href="component_reference.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Next</font></a></div>
- </td>
- <td bgcolor="#525D76">
- <div align="right"><a href="best-practices.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Prev</font></a></div>
- </td>
- </tr>
- </table>
- <br>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#525D76">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="boss"><strong>17. Help! My boss wants me to load test our web app!</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<!--
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<!-- Content Stylesheet for Site -->
+
+
+<!-- start the processing -->
+ <!-- ====================================================================== -->
+ <!-- Main Page Section -->
+ <!-- ====================================================================== -->
+ <html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/>
+
+
+ <meta name="author" value="Martin Ramshaw">
+ <meta name="email" value="mramshaw@alumni.concordia.ca">
+
+ <title>JMeter - User's Manual: My boss wants me to...</title>
+ </head>
+
+ <body bgcolor="#ffffff" text="#000000" link="#525D76">
+ <table border="0" cellspacing="0">
+ <!-- TOP IMAGE -->
+ <tr>
+ <td>
+<!-- Need to specify height otherwise iframe seems to grab extra -->
+<iframe src="http://www.apache.org/ads/halfbanner.html" height="102"
+ style="border-width:0; float: left" frameborder="0" scrolling="no"></iframe>
+</td>
+<td align="left">
+<a href="http://jakarta.apache.org"><img width="505" height="48" src="../images/jakarta-logo.gif" alt="Jakarta" title="Jakarta" border="0"/></a>
+</td>
+<td align="right">
+<a href="http://jakarta.apache.org/jmeter/"><img width="221" height="102" src="../images/logo.jpg" alt="JMeter" title="JMeter" border="0"/></a>
+</td>
+ </tr>
+ </table>
+ <table border="0" width="100%" cellspacing="4">
+ <tr><td colspan="2">
+ <hr noshade size="1"/>
+ </td></tr>
+
+ <tr>
+ <!-- LEFT SIDE NAVIGATION -->
+ <td width="20%" valign="top" nowrap="true">
+ <p><strong>About</strong></p>
+ <ul>
+ <li> <a href="../index.html">Overview</a>
+</li>
+ <li> <a href="../changes.html">Changes</a>
+</li>
+ <li> <a href="../known_bugs.html">Known Bugs</a>
+</li>
+ <li> <a href="../license.html">License</a>
+</li>
+ <li> <a href="http://wiki.apache.org/jakarta-jmeter/JMeterCommitters">Contributors</a>
+</li>
+ </ul>
+ <p><strong>Download</strong></p>
+ <ul>
+ <li> <a href="http://jakarta.apache.org/site/downloads/downloads_jmeter.cgi">Download Releases</a>
+</li>
+ <li> <a href="../nightly.html">Developer (Nightly) Builds</a>
+</li>
+ </ul>
+ <p><strong>Documentation</strong></p>
+ <ul>
+ <li> <a href="../usermanual/index.html">User Manual</a>
+</li>
+ <li> <a href="../api/index.html">Javadocs</a>
+</li>
+ <li> <a href="../localising/index.html">Localisation (Translator's Guide)</a>
+</li>
+ <li> <a href="../building.html">Building JMeter and Add-Ons</a>
+</li>
+ <li> <a href="http://wiki.apache.org/jakarta-jmeter">JMeter Wiki</a>
+</li>
+ <li> <a href="http://wiki.apache.org/jakarta-jmeter/JMeterFAQ">FAQ (Wiki)</a>
+</li>
+ </ul>
+ <p><strong>Tutorials (PDF format)</strong></p>
+ <ul>
+ <li> <a href="../usermanual/jmeter_distributed_testing_step_by_step.pdf">Distributed Testing</a>
+</li>
+ <li> <a href="../usermanual/jmeter_proxy_step_by_step.pdf">Recording Tests</a>
+</li>
+ <li> <a href="../usermanual/junitsampler_tutorial.pdf">JUnit Sampler</a>
+</li>
+ <li> <a href="../usermanual/jmeter_accesslog_sampler_step_by_step.pdf">Access Log Sampler</a>
+</li>
+ <li> <a href="../extending/jmeter_tutorial.pdf">Extending JMeter</a>
+</li>
+ </ul>
+ <p><strong>Community</strong></p>
+ <ul>
+ <li> <a href="http://jakarta.apache.org/site/getinvolved.html">Get Involved</a>
+</li>
+ <li> <a href="http://jakarta.apache.org/site/mail.html">Mailing Lists</a>
+</li>
+ <li> <a href="http://jakarta.apache.org/site/cvsindex.html">SVN Repositories</a>
+</li>
+ </ul>
+ </td>
+ <td width="80%" align="left" valign="top">
+ <table>
+ <tr>
+ <td bgcolor="#525D76">
+ <div align="right"><a href="index.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Index</font></a></div>
+ </td>
+ <td bgcolor="#525D76">
+ <div align="right"><a href="component_reference.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Next</font></a></div>
+ </td>
+ <td bgcolor="#525D76">
+ <div align="right"><a href="best-practices.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Prev</font></a></div>
+ </td>
+ </tr>
+ </table>
+ <br>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#525D76">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="boss"><strong>17. Help! My boss wants me to load test our web app!</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
This is a fairly open-ended proposition. There are a number of questions to
be asked first, and additionally a number of resources that will be needed. You
will need some hardware to run the benchmarks/load-tests from. A number of
tools will prove useful. There are a number of products to consider. And finally,
why is Java a good choice to implement a load-testing/Benchmarking product.
-
- </p>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="questions"><strong>17.1 Questions to ask</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="questions"><strong>17.1 Questions to ask</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
What is our anticipated average number of users (normal load) ?
-
- </p>
- <p >
+
+ </p>
+ <p >
What is our anticipated peak number of users ?
-
- </p>
- <p >
+
+ </p>
+ <p >
When is a good time to load-test our application (i.e. off-hours or week-ends),
bearing in mind that this may very well crash one or more of our servers ?
-
- </p>
- <p >
+
+ </p>
+ <p >
Does our application have state ? If so, how does our application manage it
(cookies, session-rewriting, or some other method) ?
-
- </p>
- <p >
- What is the testing intended to achieve?
- </p>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="resources"><strong>17.2 Resources</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ <p >
+ What is the testing intended to achieve?
+ </p>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="resources"><strong>17.2 Resources</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
The following resources will prove very helpful. Bear in mind that if you
-cannot locate these resources,
- <b >
- you
- </b>
+cannot locate these resources,
+ <b >
+ you
+ </b>
will become these resources. As you
already have your work cut out for you, it is worth knowing who the following
people are, so that you can ask them for help if you need it.
-
- </p>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="network"><strong>17.2.1 Network</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="network"><strong>17.2.1 Network</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
Who knows our network topology ? If you run into any firewall or
proxy issues, this will become very important. As well, a private
testing network (which will therefore have very low network latency)
@@ -216,192 +216,192 @@
(if you feel that this is necessary) will be very useful. If the
application doesn't scale as expected, who can add additional
hardware ?
-
- </p>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="application"><strong>17.2.2 Application</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="application"><strong>17.2.2 Application</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
Who knows how our application functions ? The normal sequence is
-
- <ul >
+
+ <ul >
-
- <li >
- test (low-volume - can we benchmark our application?)
- </li>
+
+ <li >
+ test (low-volume - can we benchmark our application?)
+ </li>
-
- <li >
- benchmark (the average number of users)
- </li>
+
+ <li >
+ benchmark (the average number of users)
+ </li>
-
- <li >
- load-test (the maximum number of users)
- </li>
+
+ <li >
+ load-test (the maximum number of users)
+ </li>
-
- <li >
- test destructively (what is our hard limit?)
- </li>
+
+ <li >
+ test destructively (what is our hard limit?)
+ </li>
-
- </ul>
+
+ </ul>
- The
- <b >
- test
- </b>
+ The
+ <b >
+ test
+ </b>
process may progress from black-box testing to
white-box testing (the difference is that the first requires
no knowledge of the application [it is treated as a "black box"]
while the second requires some knowledge of the application).
It is not uncommon to discover problems with the application
during this process, so be prepared to defend your work.
-
- </p>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="platform"><strong>17.3 What platform should I use to run the benchmarks/load-tests ?</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="platform"><strong>17.3 What platform should I use to run the benchmarks/load-tests ?</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
This should be a widely-used piece of hardware, with a standard
(i.e. vanilla) software installation. Remember, if you publish your results,
the first thing your clients will do is hire a graduate student to verify them.
You might as well make it as easy for this person as you possibly can.
-
- </p>
- <p >
+
+ </p>
+ <p >
For Windows, Windows XP Professional should be a minimum (the others
do not multi-thread past 50-60 connections, and you probably anticipate
more users than that).
-
- </p>
- <p >
+
+ </p>
+ <p >
Good free platforms include the linuxes, the BSDs, and Solaris Intel. If
you have a little more money, there are commercial linuxes. If you can justify
it, a commercial Unix (Solaris, etc) is probably the best choice.
-
- </p>
- <p >
+
+ </p>
+ <p >
For non-Windows platforms, investigate "ulimit -n unlimited" with a view to
including it in your user account startup scripts (.bashrc or .cshrc scripts
for the testing account).
-
- </p>
- <p >
+
+ </p>
+ <p >
As you progress to larger-scale benchmarks/load-tests, this platform
will become the limiting factor. So it's worth using the best hardware and
software that you have available. Remember to include the hardware/software
configuration in your published benchmarks.
-
- </p>
- <p >
+
+ </p>
+ <p >
Don't forget JMeter batch mode. This can be useful if you have a powerful server
that supports Java but perhaps does not have a fast graphics implementation,
or where you need to login remotely.
Batch (non-GUI) mode can reduce the network traffic compared with using a remote display or client-server mode.
The batch log file can then be loaded into JMeter on a workstation for analysis, or you can
-use CSV output and import the data into a spreadsheet.
- </p>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="tools"><strong>17.4 Tools</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+use CSV output and import the data into a spreadsheet.
+ </p>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="tools"><strong>17.4 Tools</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
The following tools will all prove useful. It is definitely worthwhile to
become familiar with them. This should include trying them out, and reading the
appropriate documentation (man-pages, info-files, application --help messages,
and any supplied documentation).
-
- </p>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="ping"><strong>17.4.1 ping</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="ping"><strong>17.4.1 ping</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
This can be used to establish whether or not you can reach your
target site. Options can be specified so that 'ping' provides the
same type of route reporting as 'traceroute'.
-
- </p>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="dig"><strong>17.4.2 nslookup/dig</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="dig"><strong>17.4.2 nslookup/dig</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
- While the
- <u >
- user
- </u>
+ While the
+ <u >
+ user
+ </u>
will normally use a human-readable internet
- address,
- <u >
- you
- </u>
+ address,
+ <u >
+ you
+ </u>
may wish to avoid the overhead of DNS lookups when
performing benchmarking/load-testing. These can be used to determine
the unique address (dotted quad) of your target site.
-
- </p>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="traceroute"><strong>17.4.3 traceroute</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="traceroute"><strong>17.4.3 traceroute</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
If you cannot "ping" your target site, this may be used to determine
the problem (possibly a firewall or a proxy). It can also be used
@@ -409,141 +409,141 @@
the lowest possible network latency - remember that your users will
be running over a possibly busy internet). Generally, the fewer hops
the better.
-
- </p>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="products"><strong>17.5 What other products are there ?</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="products"><strong>17.5 What other products are there ?</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
There are a number of commercial products, which generally have fairly
hefty pricetags. If you can justify it, these are probably the way to go.
If, however, these products do not do exactly what you want, or you are on a
limited budget, the following are worth a look. In fact, you should probably
-start by trying the Apache
- <b >
- ab
- </b>
+start by trying the Apache
+ <b >
+ ab
+ </b>
tool, as it may very well do the job
if your requirements are not particularly complicated.
-
- </p>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="ab"><strong>17.5.1 Apache 'ab' tool</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="ab"><strong>17.5.1 Apache 'ab' tool</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
You should definitely start with this one. It handles HTTP 'get' requests
very well, and can be made to handle HTTP 'post' requests with a little
effort. Written in 'C', it performs very well, and offers good (if basic)
performance reporting.
-
- </p>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="httpunit"><strong>17.5.2 HttpUnit</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="httpunit"><strong>17.5.2 HttpUnit</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
This is worth a look. It is a library (and therefore of more interest to
developers) that can be used to perform HTTP tests/benchmarks. It is
intended to be used instead of a web browser (therefore no GUI) in
- conjunction with
- <b >
- JUnit
- </b>
+ conjunction with
+ <b >
+ JUnit
+ </b>
.
-
- </p>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="WAS"><strong>17.5.3 Microsoft WAS</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="WAS"><strong>17.5.3 Microsoft WAS</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
This is definitely worth a look. It has an excellent user interface
but it may not do exactly what you want. If this is the case, be aware
that the functionality of this product is not likely to change.
-
- </p>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="JMeter"><strong>17.5.4 JMeter</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="JMeter"><strong>17.5.4 JMeter</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
If you have non-standard requirements, then this solution offers an
open-source community to provide them (of course, if you are reading
-
- <u >
- this
- </u>
+
+ <u >
+ this
+ </u>
, you are probably already committed to this one). This
product is free to evolve along with your requirements.
-
- </p>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table border="0" cellspacing="0" cellpadding="2" width="100%">
- <tr><td bgcolor="#828DA6">
- <font color="#ffffff" face="arial,helvetica,sanserif">
- <a name="java"><strong>17.6 Why Java ?</strong></a>
- </font>
- </td></tr>
- <tr><td>
- <blockquote>
- <p >
+
+ </p>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table border="0" cellspacing="0" cellpadding="2" width="100%">
+ <tr><td bgcolor="#828DA6">
+ <font color="#ffffff" face="arial,helvetica,sanserif">
+ <a name="java"><strong>17.6 Why Java ?</strong></a>
+ </font>
+ </td></tr>
+ <tr><td>
+ <blockquote>
+ <p >
Why not Perl or C ?
-
- </p>
- <p >
+
+ </p>
+ <p >
Well, Perl might be a very good choice except that the Benchmark package
seems to give fairly fuzzy results. Also, simulating multiple users with
Perl is a tricky proposition (multiple connections can be simulated by forking
@@ -551,96 +551,96 @@
be processes). However, the Perl community is very large. If you find that
someone has already written something that seems useful, this could be a very
good solution.
-
- </p>
- <p >
- C, of course, is a very good choice (check out the Apache
- <b >
- ab
- </b>
+
+ </p>
+ <p >
+ C, of course, is a very good choice (check out the Apache
+ <b >
+ ab
+ </b>
tool).
But be prepared to write all of the custom networking, threading, and state
management code that you will need to benchmark your application.
-
- </p>
- <p >
+
+ </p>
+ <p >
Java gives you (for free) the custom networking, threading, and state
management code that you will need to benchmark your application. Java is
aware of HTTP, FTP, and HTTPS - as well as RMI, IIOP, and JDBC (not to mention
cookies, URL-encoding, and URL-rewriting). In addition Java gives you automatic
garbage-collection, and byte-code level security.
-
- </p>
- <p >
+
+ </p>
+ <p >
And once Microsoft moves to a CLR (common language run-time) a Windows Java
solution will not be any slower than any other type of solution on the Windows
platform.
-
- </p>
- </blockquote>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- </blockquote>
- </p>
- </td></tr>
- <tr><td><br></td></tr>
- </table>
- <table>
- <tr>
- <td bgcolor="#525D76">
- <div align="right"><a href="index.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Index</font></a></div>
- </td>
- <td bgcolor="#525D76">
- <div align="right"><a href="component_reference.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Next</font></a></div>
- </td>
- <td bgcolor="#525D76">
- <div align="right"><a href="best-practices.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Prev</font></a></div>
- </td>
- </tr>
- </table>
- <br>
- </td>
- </tr>
-
- <tr><td colspan="2">
- <hr noshade size="1"/>
- </td></tr>
- <tr><td colspan="2">
- <div align="center"><font color="#525D76" size="-1"><em>
- Copyright © 1999-2008, Apache Software Foundation
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+ </p>
+ </blockquote>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ </blockquote>
+ </p>
+ </td></tr>
+ <tr><td><br></td></tr>
+ </table>
+ <table>
+ <tr>
+ <td bgcolor="#525D76">
+ <div align="right"><a href="index.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Index</font></a></div>
+ </td>
+ <td bgcolor="#525D76">
+ <div align="right"><a href="component_reference.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Next</font></a></div>
+ </td>
+ <td bgcolor="#525D76">
+ <div align="right"><a href="best-practices.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Prev</font></a></div>
+ </td>
+ </tr>
+ </table>
+ <br>
+ </td>
+ </tr>
+
+ <tr><td colspan="2">
+ <hr noshade size="1"/>
+ </td></tr>
+ <tr><td colspan="2">
+ <div align="center"><font color="#525D76" size="-1"><em>
+ Copyright © 1999-2008, Apache Software Foundation
+ </em></font></div>
+ </td></tr>
+ </table>
+ </body>
+ </html>
+<!-- end the processing -->
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