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Posted to user@jmeter.apache.org by Jazzdabbler <ja...@gmail.com> on 2009/10/05 13:45:16 UTC
JMeter sends requests slower and slower
Hi all
I have a performance problem with JMeter
I created a plan for JMeter, which consistently makes the login to the site
and make requests to servlets and using BeanShell makes parsing sent values.
The problem is that even with 100 threads instead of fixed delay of 5
seconds between requests JMeter sends more and more slowly during the test.
The time of response from the server Average = 134 msec, Min = 24, Max =
3166, requests per second 4.16 (8,34 at the beginning of the test).
Server running on CentOs 5: No problems with the GC, the CPU at 15%.
JMeter running on Linux CentOs 5: no problems with GC, the CPU at 50%.
Connecting profiler (YJP) to JMeter I see a large number of threads that are
hanging in the lock on monitor of class org.apache.jmeter.DynamicClassLoader
What kind of lock and how to get JMeter to send requests to the required
frequency?
Thnx
http://www.nabble.com/file/p25749293/Load.jmx.gz Load.jmx.gz
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Re: JMeter sends requests slower and slower
Posted by Jazzdabbler <ja...@gmail.com>.
Some additioanal Jmeter enviroment
#java -version
java version "1.6.0"
OpenJDK Runtime Environment (build 1.6.0-b09)
OpenJDK Server VM (build 1.6.0-b09, mixed mode)
JMeter startup options:
-server -Xms512m -Xmx512m -Xss256k -XX:NewRatio=5 -XX:NewSize=96m
-XX:MaxTenuringThreshold=2 -Dsun.rmi.dgc.client.gcInterval=600000
-Dsun.rmi.dgc.server.gcInterval=600000 -XX:PermSize=128m
-XX:MaxPermSize=256m -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps
-XX:+PrintTenuringDistribution -XX:+PrintHeapAtGC -Xloggc:../logs/gc.log
-agentpath:/opt/yjp-8.0.12/bin/linux-x86-32/libyjpagent.so=disablestacktelemetry,delay=10000,sessionname=Jmeter,listen=192.168.0.3:8080
-jar ./ApacheJMeter.jar -n -t /home/spice/jmeter/test_plan/Load.jmx
-Jusers=100 -Jrampup=100 -Jloop=10000 -Jserver=192.168.0.117 -Jport=8180
-Jtime=5000 -Jdeviationtime=0 -Jstartuptime=100
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Re: JMeter sends requests slower and slower
Posted by Jazzdabbler <ja...@gmail.com>.
Problem solved: replace OpenJDK with SunJDK
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