The -X VM options will work with Sun VM's, your mileage may vary when used with others. You can read all about it here: http://java.sun.com/docs/hotspot/VMOptions.html
Jeremy > -----Original Message----- > From: Ming Zhao [mailto:[EMAIL PROTECTED]] > Sent: Monday, December 16, 2002 10:19 AM > To: Tomcat Users List > Subject: RE: Tomcat using VERY LARGE Memory (URGENT!!!!!!!!!) > > Can it work on Win2k? Thanks, > > --- Luc Santeramo <[EMAIL PROTECTED]> > wrote: > > Hi, > > > > there is a way to limit memory use by tomcat > > just specify it in your CATALINA_OPTS env var > > here is mine > > CATALINA_OPTS="-server -Xmx220m -Xms220m > > -Dfile.encoding=UTF-8" > > > > these are jvm parameter I think > > Xmx is the max mem to use and Xms is the min > > > > hope this helps > > > > Luc > > > > At 11:03 13/12/2002 +0100, Marco Bucciarelli wrote: > > >Hi, I have also this problem/doubt: how to limit > > the number of threads > > >opened by Tomcat? > > >I tried to change a lot of settings in server.xml > > but nothing influenced > > >that number. > > >I have always 46 new java processes opened by > > Tomcat. > > > > > >I did this test (Linux RedHat 7.0, Tomcat 4.1.12, > > Apache 1.3.12, Sun JDK > > >1.4.1_01): > > >- reboot the machine, with tomcat service disabled > > at startup > > >- the free command gives me 221.196Kb of memory > > free (Total 256Mk) > > >- start tomcat > > >- I found 46 new java processes > > >- the top command says that every process uses 56Mb > > of RAM > > >- the free command now gives me 44.436Kb free > > > > > >All this without accessing to Apache or Tomcat, > > only before and after the > > >start of Tomcat! > > > > > >Of course I do not have a memory usage of 46*56Mb, > > but I do not have only > > >56Mb of RAM used by Tomcat (after the start I have > > only 44Mb of memory free, > > >before the start I had 220Mb free). > > > > > >What is happening? > > > > > >Bye, > > >Marco. > > > > > > > > >From: "Galbayar" > > >Subject: Re: Tomcat using VERY LARGE Memory > > (URGENT!!!!!!!!!) > > >Date: Tue, 12 Mar 2002 10:26:21 +0800 > > > > > >it is top result and every java process using 59M > > RAM > > >i'm use mod_jk integrated Tomcat with Apache and > > Tomcat > > >top result is : > > > > > > > > >110 processes: 109 sleeping, 1 running, 0 zombie, 0 > > stopped > > >CPU states: 2.3% user, 1.9% system, 0.0% nice, > > 95.6% idle > > >Mem: 1028860K av, 938924K used, 89936K free, > > 116K shrd, > > >139628K > > >buff > > >Swap: 1020116K av, 0K used, 1020116K free > > >680228K > > >cached > > > > > > PID USER PRI NI SIZE RSS SHARE STAT %CPU > > %MEM TIME > > >COMMAND > > >17862 root 15 0 1092 1092 836 R 1.7 > > 0.1 0:00 top > > >17293 root 13 0 28176 59M 9576 S 1.5 > > 2.7 0:01 java > > >17272 root 10 0 28176 59M 9576 S 0.1 > > 2.7 0:02 java > > > > > >and see MEM usage total RAM is 1028860K 938924K > > used, 89936K free > > > > > > > > >----- Original Message ----- > > >From: "Filip Hanik" <[EMAIL PROTECTED]> > > >To: "Tomcat Users List" > > <[EMAIL PROTECTED]> > > >Sent: Tuesday, March 12, 2002 10:14 > > >Subject: RE: Tomcat using VERY LARGE Memory > > (URGENT!!!!!!!!!) > > > > > > > > > > what you are seeing is that "ps" or "top" lists > > one process for > > >each > > >thread > > > > in Tomcat. > > > > your tomcat is running 59M all together > > > > > > > > Filip > > > > > > > > ~ > > > > Namaste - I bow to the divine in you > > > > ~ > > > > Filip Hanik > > > > Software Architect > > > > [EMAIL PROTECTED] > > > > www.filip.net > > > > > > > > >-----Original Message----- > > > > >From: Galbayar [mailto:[EMAIL PROTECTED]] > > > > >Sent: Monday, March 11, 2002 6:04 PM > > > > >To: Tomcat Users List > > > > >Subject: Tomcat using VERY LARGE Memory > > (URGENT!!!!!!!!!) > > > > > > > > > > > > > > >Hello all > > > > >Here is part of top output. Is it usual that > > java > > > > >processes eat all of memory? ? At now there are > > 50 java > > >processes started > > > > >that running tomcat and each of them uses 59M > > memory. There > > >is running > > > > >apache > > > > >server with tomcat 4 and mysql. OS is Redhat7.2 > > x86 . JDK > > >1.4 is > > >installed. > > > > >how to solve this problem? > > > > > > > > > >106 processes: 105 sleeping, 1 running, 0 > > zombie, 0 stopped > > > > >CPU states: 0.3% user, 3.4% system, 0.0% nice, > > 96.1% idle > > > > >Mem: 1028860K av, 1022352K used, 6508K free, > > 116K shrd, > > >129004K buff > > > > >wap: 1020116K av, 0K used, 1020116K free > > 762320K cached > > > > > > > > > >3201 root 9 0 60692 59M 28164 S 0.0 5.8 0:03 > > java > > > > >3202 root 8 0 60692 59M 28164 S 0.0 5.8 0:00 > > java > > > > >3203 root 9 0 60692 59M 28164 S 0.0 5.8 0:35 > > java > > > > >3204 root 9 0 60692 59M 28164 S 0.0 5.8 0:00 > > java > > > > >3205 root 9 0 60692 59M 28164 S 0.0 5.8 0:01 > > java > > > > >3206 root 9 0 60692 59M 28164 S 0.0 5.8 0:00 > > java > > > > >3207 root 9 0 60692 59M 28164 S 0.0 5.8 0:00 > > java > > > > >3208 root 9 0 60692 59M 28164 S 0.0 5.8 0:00 > > java > > > > >3209 root 9 0 60692 59M 28164 S 0.0 5.8 0:03 > > java > > > > > > > > > > > > > > > > > > > > > > -- > > > > To unsubscribe: <mailto:tomcat-user- > > >[EMAIL PROTECTED]> > > > > For additional commands: <mailto:tomcat-user- > > >[EMAIL PROTECTED]> > > > > Troubles with the list: <mailto:tomcat-user- > > >[EMAIL PROTECTED]> > > > > > > > > > > > > > > > > > > > > >-- > > >To unsubscribe: <mailto:tomcat-user- > > >[EMAIL PROTECTED]> > > >For additional commands: <mailto:tomcat-user- > > >[EMAIL PROTECTED]> > > >Troubles with the list: <mailto:tomcat-user- > > >[EMAIL PROTECTED]> > > > > > > > > > > > >-- > > >To unsubscribe, e-mail: > > <mailto:[EMAIL PROTECTED]> > > >For additional commands, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > === message truncated === > > > __________________________________________________ > Do you Yahoo!? > New DSL Internet Access from SBC & Yahoo! > http://sbc.yahoo.com > > -- > To unsubscribe, e-mail: <mailto:tomcat-user- > [EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:tomcat-user- > [EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
