Actually I have. My problem is that I fail to see the memory leak in the profiler and I fail to get Tomcat to crash while being profiled. However, If I just start Tomcat from the services, it will crash with a few hours. Usually when Mem Usage approaches VM Size.
Chanan Braunstein Knovel Corp. Web Development Manager 607-773-1840 x672 http://www.knovel.com -----Original Message----- From: Shapira, Yoav [mailto:[EMAIL PROTECTED] Sent: Thursday, April 15, 2004 1:22 PM To: Tomcat Users List Subject: RE: Memory Leak Hi, <sigh /> I and others have explained many times on this list the difference between task manager (or top command on unix) memory displays and the java heap parameters and sizing. The effect of profiling (often an order of magnitude or more memory increase and CPU time) has also been discussed. You can search the archives for more details. Yoav Shapira Millennium Research Informatics >-----Original Message----- >From: Chanan Braunstein [mailto:[EMAIL PROTECTED] >Sent: Thursday, April 15, 2004 1:04 PM >To: 'Tomcat Users List' >Subject: RE: Memory Leak > >Another thing I don't understand. When I start up tomcat through the >services, and in task manager I show the VM Size column, I see that it is >about the same size as what I set in the command line: -server -Xrs >-Xms356M -Xmx356M. And the crash usually occurs when Mem Usage column >approaches VM Size. VM Size never grows larger. > >However when I ran tomcat under the profiler (OptimizeIt 6) with those same >options, my VM size grow much larger, it reached up to 1GB. Also I finally >saw the Mem Usage go up and down up to 800,000k and back down the 300,000k >that I noticed. And tomcat never crashed. So it must be a different >setting, but I don't see what. Although I did notice that in bat file >that Optimize >It 6 created for me they had: > >rem (Optional) Increase the GCOP value if you get some "GCOP buffer too >small" >rem errors with the Profiler (size is in Mb) set GCOPSIZE=5 set >JAVA_PARAMS=-DGCOPSIZE=%GCOPSIZE% > >Anyone knows what that is? Can that be the fix to my problem? > > >Chanan Braunstein >Knovel Corp. >Web Development Manager >607-773-1840 x672 >http://www.knovel.com > > >-----Original Message----- >From: Chanan Braunstein [mailto:[EMAIL PROTECTED] >Sent: Thursday, April 15, 2004 12:27 PM >To: 'Tomcat Users List' >Subject: RE: Memory Leak > >Sun 1.4.2_02 on win2k > > >Chanan Braunstein >Knovel Corp. >Web Development Manager >607-773-1840 x672 >http://www.knovel.com > > >-----Original Message----- >From: Ralph Einfeldt [mailto:[EMAIL PROTECTED] >Sent: Thursday, April 15, 2004 11:47 AM >To: Tomcat Users List >Subject: RE: Memory Leak > > >Which vm and os do you use ? > >That behaviour is jvm and os dependend. (This is the first time I hear of >an >implementation that returns memory to the os, although I knew that it could >be done) > >> -----Original Message----- >> From: Allistair Crossley [mailto:[EMAIL PROTECTED] >> Sent: Thursday, April 15, 2004 5:38 PM >> To: Tomcat Users List >> Subject: RE: Memory Leak >> >> >> this is what I have heard before but it is not true. our Tomcat 5.0.19 >> under load in the task manager view goes up to about 150MB and >> overnight or under light load goes back down to 95MB. >> > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] > > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] > > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
