Good Afternoon Jon- set Max Mem and Min Mem within jvm.cfg (-Xmx and -Xms options) to the same value http://java.sun.com/docs/hotspot/PerformanceFAQ.html#8
Exercise caution on playing with stack SS 64k is mightly lean 512k(default for Sparc) and 256k(default for Intel) usually is plenty unless your program has some grossly huge stack allocations Drivers- Also be mindful of synch points for Type 2 (OCI) drivers vs using Type 4 (thin) drivers.. HTH Martin -- ********************************************************************* This email message and any files transmitted with it contain confidential information intended only for the person(s) to whom this email message is addressed. If you have received this email message in error, please notify the sender immediately by telephone or email and destroy the original message without making a copy. Thank you. ----- Original Message ----- From: "Jon Wingfield" <[EMAIL PROTECTED]> To: "Tomcat Users List" <users@tomcat.apache.org> Sent: Wednesday, July 19, 2006 12:12 PM Subject: Re: out of memory error > This may be of help (emphasis on may): > > http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4765019 > > Has a bit about tuning Xss for a high number of threads. > > MW Janssen wrote: >> Hi, >> >> These are my parameters: >> >> I have Xmx1024m and Xms1024m as well for the heap size memory. I dont set >> Xss so I presume I use the default value. >> My Operating System: >> >> OS Name: Windows 2003 OS Version: 5.2 Total RAM: 2.00Gb Free RAM: 2.00Gb >> Committed JVM memory: 1.02Gb Total swap: 4.00Gb Free swap: 3.87Gb (from >> lambdaprobe) >> >> Maarten >> >> -----Oorspronkelijk bericht----- >> Van: David Tonhofer [mailto:[EMAIL PROTECTED] >> Verzonden: woensdag 19 juli 2006 16:57 >> Aan: Tomcat Users List >> Onderwerp: Re: out of memory error >> >> >> MW Janssen wrote: >> >> "java.lang.OutOfMemoryError: unable to create new native thread" >> >> >> Are you it isn't just the heap and/or stack that's too small? Try starting >> the Jvm with one of the extended options line "-Xss500k" "-Xmx100m" (if it >> is the Sun >> JVM) >> >> --------------------------------------------------------------------- >> To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, >> e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> -- >> No virus found in this incoming message. >> Checked by AVG Free Edition. >> Version: 7.1.394 / Virus Database: 268.10.1/391 - Release Date: 18-7-2006 >> >> > > > > --------------------------------------------------------------------- > To start a new topic, e-mail: users@tomcat.apache.org > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
