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Performance Analysis 怎么用collect -j 收集tomcat上的web项目的性能数据？
Performance Analysis 怎么用collect -j 收集tomcat上的web项目的性能数据？
How to user Performance Analysis collect -j to collect web apps data on tomcat?
Thank you!
Best Answer
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Could you please explain how you start tomcat?
I guess you start it by running something like this (but I may be wrong):
$CATALINA_HOME/bin/startup.sh
If yes, then you can try to start it under "collect" using the following command:
collect -o /tmp/tomcat.1.er $CATALINA_HOME/bin/startup.sh
It should create the experiment /tmp/tomcat.1.er, start tomcat and profile it until you stop tomcat.
After that you can view the experiment in analyzer:
analyzer /tmp/tomcat.1.er
Please, let us know if you see any problems with this solution.
Thanks.
Nik
Answers
-
Could you please explain how you start tomcat?
I guess you start it by running something like this (but I may be wrong):
$CATALINA_HOME/bin/startup.sh
If yes, then you can try to start it under "collect" using the following command:
collect -o /tmp/tomcat.1.er $CATALINA_HOME/bin/startup.sh
It should create the experiment /tmp/tomcat.1.er, start tomcat and profile it until you stop tomcat.
After that you can view the experiment in analyzer:
analyzer /tmp/tomcat.1.er
Please, let us know if you see any problems with this solution.
Thanks.
Nik
-
如果你用的是studio 12.4，collect可以收集从脚本运行的java程序。
比如如果从一个shell脚本run.sh运行tomcat，那么运行
> collect -j on sh run.sh
就可以采集tomcat运行后所有加载的web项目的数据。
如果你的web项目在某个时间段内运行，而且你只关心这个时间段的数据，你可以通过signal控制数据采集的开始和结束时间。
> collect -j on -y PROF sh run.sh
然后你可以向目标进程(假设进程号是1111)发送SIGPROF signal来开始或暂停数据采集：
> kill -SIGPROF 1111
在Linux上SIGPROF不能用，建议用SIGVTALRM。
如果你用的是solaris，collect 可以附着在正在运行的程序(假设进程号是1111)上：
> collect -j on -P 1111
studio 12.4 页面：
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I use “collect -o test.1.er sh catalina.sh run”
it's worked
Thank you
-
Great to know that “collect -o test.1.er sh catalina.sh run” works!
Please, let us know if you have any questions or you see any problems.
Thanks.
Nik
-
Thanks for your help. It save me hours of work.
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