heap size config

2003-06-17 Thread Billy Ng
Hi folks, We config the java -Xms and -Xmx with the 512MB. In Unix, java will make 512MB swap every time we make a System Runtime call. Therefore, we need to lower the -Xms to 64MB and -Xmx remains 512MB so that it will not run out of swap space if too many threads making the System Runtime

Re: heap size config

2003-06-17 Thread Yoav Shapira
Howdy, In Unix, java will make 512MB swap every time we make a System Runtime call. I don't think so: can you prove the above? Will this hurt the Tomcat preformnace? Lowering -Xms will only slightly degrade performance during the allocation phase. The effects are negligible during that

Re: heap size config

2003-06-17 Thread Billy Ng
Shapira [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED]; Billy Ng [EMAIL PROTECTED] Sent: Tuesday, June 17, 2003 4:40 AM Subject: Re: heap size config Howdy, In Unix, java will make 512MB swap every time we make a System Runtime call. I don't think so: can you prove the above

RE: heap size config

2003-06-17 Thread Shapira, Yoav
[mailto:[EMAIL PROTECTED] Sent: Tuesday, June 17, 2003 1:16 PM To: Tomcat Users List; [EMAIL PROTECTED] Subject: Re: heap size config If you run top, and make a servlet to call a System Runtime. Then, use Jmeter to hammer it. You will see the swap disk is create the same size as the -Xms for each

RE: heap size config

2003-06-17 Thread Eric J. Pinnell
to see this one happen... What do you mean by call a System Runtime ? Yoav Shapira Millennium ChemInformatics -Original Message- From: Billy Ng [mailto:[EMAIL PROTECTED] Sent: Tuesday, June 17, 2003 1:16 PM To: Tomcat Users List; [EMAIL PROTECTED] Subject: Re: heap size config