Hi Bob, I don't know yet. The issue is not resolved yet on our server. I will post something to this mailing list as soon as I have found out how we were able to solve our issues. Maybe it will help you too.
I think it has something todo with the Java JVM installation/settings. You could try out downloading another JVM from the java.com. A Java JVM installation is actually an unpacked ZIP file so you can run $JAVA_HOME/bin/java DoJavaTest with any Java runtime that you download and "install". Sebastian 2012/7/2 bob lin <[email protected]> > On 07/02/2012 03:17 PM, [email protected] wrote: > > Hi Bob, > > I recently saw something similar on a server ... > > You should check if there is an issue with Java in general. > I don't think that its an OpenMeetings related problem. > > You could try for example this simple Java Test: > http://pastebin.com/DmhcAuVE > > It should print a Date/Time every 0,5 seconds. > I've attached a compiled version of the programm. > You can run it using: java DoJavaTest > > I guess you will see that even with such simple programm your CPU is at > 100%. > > > Sebastian > > > 2012/7/1 bob lin <[email protected]> > >> Dear Developers: >> First, thanks for developing such a excellent software. It works fine , >> but the cpu load on server side is abnormally high . >> >> Phenomena : >> The Openmeetings works fine on every aspect. But on the server side( a >> 16 core system ) , the java process takes 1000% ~ 1100% CPU time, and >> about 10~15 kernel irq request ( [ksoftirqd/3] for example ) each takes >> 30% , the total load of CPU reachs 2200% . Whether the user is logged in >> or not doesn't change the situation. >> >> System Info : >> The openmeetings version is 1_9_1_r4707, The jre version is >> jre1.6.0_33/jre1.7.0_5 . I use libreoffice 3.5 . The system is CentOS >> 6.2 x86_64 with MySQL Ver 14.14 Distrib 5.1.61. >> >> I follow the configuration instructions on >> https://code.google.com/p/openmeetings/wiki/InstallationCentOS5 >> But with some newer version software (Imagemagick, ffmpeg) >> > > > > -- > Sebastian Wagner > https://twitter.com/#!/dead_lock > http://www.openmeetings.de > http://www.webbase-design.de > http://www.wagner-sebastian.com > [email protected] > > > Yeah , The sample program doesn't even update the time , and CPU is 200%!! > , In a single CPU test environment the java environment just functioning > normally , Thanks for your advice , and is there any solutions you may > advice? > > -- Sebastian Wagner https://twitter.com/#!/dead_lock http://www.openmeetings.de http://www.webbase-design.de http://www.wagner-sebastian.com [email protected]
