Greetings. Which 2.4 Kernel? And did you reset the Thread/Process handles in the Kernel?
Above 2.4.10 (I would STRONGLY RECOMMEND 2.4.18 for this, btw), a new thread manager and virtual process manager was put into the Linux Kernel. The gotcha's; 1) Many Distro's, including SuSE, patched OUT the new thread manager in 2.4.17 and below (there were some bugs) 2) Linux Kernels ship with the following maximums by default; Max Threads/Process = 64; Max Processes/System = 1024 These defaults cause serious performance degradation of JBoss on Linux systems starting at around 150-200 concurrent users. I boosted test box up to Threads = 8192/Process=8192, have not had any problems, and the box screams. (Have not actually deployed into production yet, sorry). The reason that the defaults are so low is that for end-users, and development boxes, this prevents runaway forkers from taking down the system. This does cause an issue for production servers, however. -Steve Karl Øie wrote: > with shame i have to agree with this, according to several performance tests > w2k has better thread handeling than linux (2.4 kern) at the moment.... > > mvh karl e > > > On Friday 07 June 2002 13:35, Maris Orbidans wrote: > >>and what about threads ? >> >> >> >>IMHO JRockit is the best VM for JBoss >> >>Its free >> >>http://www.jrockit.com >> >> >>Maris >> >> >>>-----Original Message----- >>>From: Marius Kotsbak [mailto:[EMAIL PROTECTED]] >>>Sent: Friday, June 07, 2002 2:00 PM >>>To: [EMAIL PROTECTED] >>>Subject: Re: [JBoss-user] performance on linux/windows >>> >>> >>>I think that the difference is litte if you use the best jdks on both >>>platforms (ibm/sun 1.4 for linux), but linux is far more stable and >>>easier to work with than windows. We run on SuSE.de. And I think linux >>>has a better memory/swap/disk-handling than win. It utilizes >>>most of the >>>memory for buffers, while win might let the memory be free (i.e. don't >>>use it). >>> >>>On Sat, 2002-06-08 at 00:50, Tejeshwar wrote: >>> >>>>Hi.. >>>> >>>> >>>>I want to know one thing. >>>>My question, >>>> >>>>JBoss on windows/linux, which gives better performance? >>>>whether windows or linux. >>>> >>>>Pls reply back as early as possible. >>>> >>>>Thanking you >>>> >>>>with regards >>>> >>>>Tejesh >>>> >>>_______________________________________________________________ >>> >>>Don't miss the 2002 Sprint PCS Application Developer's Conference >>>August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm >>> >>>_______________________________________________ >>>JBoss-user mailing list >>>[EMAIL PROTECTED] >>>https://lists.sourceforge.net/lists/listinfo/jboss-user >>> >>_______________________________________________________________ >> >>Don't miss the 2002 Sprint PCS Application Developer's Conference >>August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm >> >>_______________________________________________ >>JBoss-user mailing list >>[EMAIL PROTECTED] >>https://lists.sourceforge.net/lists/listinfo/jboss-user >> > > > _______________________________________________________________ > > Don't miss the 2002 Sprint PCS Application Developer's Conference > August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm > > _______________________________________________ > JBoss-user mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/jboss-user > > _______________________________________________________________ Don't miss the 2002 Sprint PCS Application Developer's Conference August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
