Large File Size

["Martinez de Pinillos, Joaquin" <jm...@anteon.com>]

   I am new to JMeter but I think I have a problem which I have seen a
couple of posts on but no resolution.  I am running JMeter and I am
trying to run multiple threads.  In my web page I am attaching files.

If I use small file sizes say 1 to 2 MB everything runs fine.  I can run
multiple threads no problems.  However when I try and attach a large
file say 25 MB JMeter can only handle 2 maybe 3 threads.  I have looked
at my memory settings and they are set to 256 MB.  My PC has 512 MB.  I
think this is a memory issue but I am not sure how to solve it.  Any
help would be greatly appreciated.  Thanks in advance.

 

Joaquin J. Martinez de Pinillos

Anteon Corporation

(o) 703 253 3425

(f)  703 253 3690

(m) 703 980 8827

 

Re: Ramp up time

[sebb <se...@gmail.com>]

The ramp-up value is the *total" ramp-up time. Try using a value of 250.


On Mon, 13 Sep 2004 13:25:16 -0500, Chuck Henson <ch...@wellinx.com> wrote:
> The ramp up time in my test plan does not appear to be working. It is set
> correctly. Here is the property in the xml file for the test plan.
> 
> <property xml:space="preserve"
> propType="org.apache.jmeter.testelement.property.StringProperty"
> name="ThreadGroup.ramp_time">5</property>
> 
> which should give me a 5 second interval between the start of each thread.
> Yet, when I start the test, all of the threads start (almost)
> simultaneously. jmeter.log shows all 50 threads starting in a matter of a
> few seconds.
> 
> Any ideas?
> 
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Ramp up time

[Chuck Henson <ch...@wellinx.com>]

The ramp up time in my test plan does not appear to be working. It is set
correctly. Here is the property in the xml file for the test plan.

<property xml:space="preserve"
propType="org.apache.jmeter.testelement.property.StringProperty"
name="ThreadGroup.ramp_time">5</property>

which should give me a 5 second interval between the start of each thread.
Yet, when I start the test, all of the threads start (almost)
simultaneously. jmeter.log shows all 50 threads starting in a matter of a
few seconds.

Any ideas?



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Re: Large File Size

[Peter Lin <wo...@gmail.com>]

wow, that is a huge file.  I've had test plans that were 10mb+ in the
past, but I've never had a test plan that attached a 25mb file.  Even
if JMeter could handle 10 threads within a single instance, anything
more than 2 concurrent threads is going to seriously slow down the
network I/O.

in this particular case, I'm gonna say the best option is to use
several client machines to test and only use 2-3 threads per jmeter
instance. depending on the network, 25mb file is gonna takes a minute
or longer.

I hope that helps

peter


On Mon, 13 Sep 2004 13:59:55 -0400, Martinez de Pinillos, Joaquin
<jm...@anteon.com> wrote:
>   I am new to JMeter but I think I have a problem which I have seen a
> couple of posts on but no resolution.  I am running JMeter and I am
> trying to run multiple threads.  In my web page I am attaching files.
> 
> If I use small file sizes say 1 to 2 MB everything runs fine.  I can run
> multiple threads no problems.  However when I try and attach a large
> file say 25 MB JMeter can only handle 2 maybe 3 threads.  I have looked
> at my memory settings and they are set to 256 MB.  My PC has 512 MB.  I
> think this is a memory issue but I am not sure how to solve it.  Any
> help would be greatly appreciated.  Thanks in advance.
> 
> Joaquin J. Martinez de Pinillos
> 
> Anteon Corporation
> 
> (o) 703 253 3425
> 
> (f)  703 253 3690
> 
> (m) 703 980 8827
> 
>

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