Re: Tomcat/Java and SMP

2004-12-03 Thread Kwok Peng Tuck
Dan, U have 10 application servers on one machine or 10 application on 10 distinct machines ? Dan Foreman wrote: Hi, I have a setup of 10 application servers using Tomcat 4/5, jsdk 1.4.2_02, SMP, win2k. In watching the performance under load I am concerned that only one CPU is being

RE: Tomcat/Java and SMP

2004-12-03 Thread Shapira, Yoav
Hi, NTI: Not a Tomcat Issue. Parallelization depends on the VM implementation for your specific OS and might require special configuration switches: consult your JVM documentation. Yoav Shapira http://www.yoavshapira.com -Original Message- From: Dan Foreman [mailto:[EMAIL PROTECTED]

RE: Tomcat/Java and SMP

2004-12-03 Thread Dan Foreman
10 application servers. -Original Message- From: Kwok Peng Tuck [mailto:[EMAIL PROTECTED] Sent: Friday, December 03, 2004 6:53 AM To: Tomcat Users List Subject: Re: Tomcat/Java and SMP Dan, U have 10 application servers on one machine or 10 application on 10 distinct machines

RE: Tomcat/Java and SMP

2004-12-03 Thread David Boyer
AM 10 application servers. -Original Message- From: Kwok Peng Tuck [mailto:[EMAIL PROTECTED] Sent: Friday, December 03, 2004 6:53 AM To: Tomcat Users List Subject: Re: Tomcat/Java and SMP Dan, U have 10 application servers on one machine or 10 application on 10 distinct machines

Re: Tomcat/Java and SMP

2004-12-03 Thread Wade Chandler
Dan Foreman wrote: 10 application servers. -Original Message- From: Kwok Peng Tuck [mailto:[EMAIL PROTECTED] Sent: Friday, December 03, 2004 6:53 AM To: Tomcat Users List Subject: Re: Tomcat/Java and SMP Dan, U have 10 application servers on one machine or 10 application on 10

RE: Tomcat/Java and SMP

2004-12-03 Thread Dan Foreman
Yes, 10 separate boxes with a single JVM (tomcat instance) running on each box. All boxes are SMP. -Original Message- From: David Boyer [mailto:[EMAIL PROTECTED] Sent: Friday, December 03, 2004 12:32 PM To: [EMAIL PROTECTED] Subject: RE: Tomcat/Java and SMP So these are 10 separate

Re: Tomcat/Java and SMP

2004-12-03 Thread Wade Chandler
Dan Foreman wrote: Yes, 10 separate boxes with a single JVM (tomcat instance) running on each box. All boxes are SMP. -Original Message- From: David Boyer [mailto:[EMAIL PROTECTED] Sent: Friday, December 03, 2004 12:32 PM To: [EMAIL PROTECTED] Subject: RE: Tomcat/Java and SMP So

Re: Tomcat/Java and SMP

2004-12-02 Thread Parsons Technical Services
Dan, Did you start the second connection from the same machine? Doug - Original Message - From: Dan Foreman [EMAIL PROTECTED] To: Tomcat-User [EMAIL PROTECTED] Sent: Thursday, December 02, 2004 10:40 PM Subject: Tomcat/Java and SMP Hi, I have a setup of 10 application servers using

Re: Tomcat/Java and SMP

2004-12-02 Thread David Boyer
The ability of Tomcat (or any other Java application) to use multiple CPUs depends on if the JVM can support multiple CPUs. Sun's JVM for Windows uses native threads which the OS can schedule across multiple CPUs. Clearly, your test application shows this. I believe Java threads are mapped

RE: Tomcat/Java and SMP

2004-12-02 Thread Dan Foreman
slw performance. -Dan -Original Message- From: Parsons Technical Services [mailto:[EMAIL PROTECTED] Sent: Thursday, December 02, 2004 10:18 PM To: Tomcat Users List Subject: Re: Tomcat/Java and SMP Dan, Did you start the second connection from the same machine? Doug - Original

Re: Tomcat/Java and SMP

2004-12-02 Thread Parsons Technical Services
and let more knowledgeable ones of such things take over. Doug - Original Message - From: Dan Foreman [EMAIL PROTECTED] To: 'Tomcat Users List' [EMAIL PROTECTED] Sent: Thursday, December 02, 2004 11:30 PM Subject: RE: Tomcat/Java and SMP Hi, Yes, my test was from my workstation with two