Re: Does tomcat support multicores

2008-02-29 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Len, Len Popp wrote: | (Please excuse the boring licensing details, but I've seen a lot of | misinformation on this topic.) Thanks for setting the record straight. I didn't want to call Alan a liar, but I knew that his assertions were in conflict wi

Re: Does tomcat support multicores

2008-02-29 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Alan, Alan Chaney wrote: | XP Home only supports one core - however, that would hardly be an OS for | a production web server (grin) Unless XP sees an Intel ht processor as something other than two cored, this is BS. I have XP home on one of my lapt

Re: Does tomcat support multicores

2008-02-28 Thread Len Popp
Bandwidth or > running out of threads as suggested earlier. I've found that a modern > multicore machine doesn't actually spend very much time processing the > Tomcat stuff at all. > > > > > Caldarale, Charles R wrote: > >> From: Christopher S

Re: Does tomcat support multicores

2008-02-28 Thread Alan Chaney
icore machine doesn't actually spend very much time processing the Tomcat stuff at all. Caldarale, Charles R wrote: From: Christopher Schultz [mailto:[EMAIL PROTECTED] Subject: Re: Does tomcat support multicores | Doesn't XP limit itself to two cores? I don't think so. I'm

RE: Does tomcat support multicores

2008-02-28 Thread Caldarale, Charles R
> From: Christopher Schultz [mailto:[EMAIL PROTECTED] > Subject: Re: Does tomcat support multicores > > | Doesn't XP limit itself to two cores? > > I don't think so. I'm sure some versions of XP are limited to two CPUs, since that was a concern when HyperThrea

Re: Does tomcat support multicores

2008-02-28 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Chuck, Caldarale, Charles R wrote: |> From: Caldarale, Charles R |> Subject: RE: Does tomcat support multicores |> |>> From: James Law [mailto:[EMAIL PROTECTED] |>> Subject: Does tomcat support multicores |>> |>> Hi

Re: Does tomcat support multicores

2008-02-28 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 James, James Law wrote: | We use a program called WAPT to ramp up the amount of requests sent | to Tomcat, probably not the best way going off what has been said. It | got to the point were it the Java process never go above 25% cpu | usage while the

Re: Does tomcat support multicores

2008-02-28 Thread Dan Armbrust
What kind of work is Tomcat doing for each request that WAPT sends in? For example, if you were doing something that had to go back to a database, and you had a bad sync block in your code somewhere, or didn't have enough connections in your DB pool, that could cause it to behave like it is single

Re: Does tomcat support multicores

2008-02-28 Thread Filip Hanik - Dev Lists
tomcat is core agnostic, it lets the JVM handle it, and the answer is yes, most JVMs will support multi core machines Filip James Law wrote: Os - WinXP CPU - Intel Quad Core Hi I'm running a tomcat server, and would like to know if Tomcat can make use of multiple cores? When I max the server

RE: Does tomcat support multicores

2008-02-28 Thread James Law
making proper use of the cores. Currently using Java 1.6. -Original Message- From: Christopher Schultz [mailto:[EMAIL PROTECTED] Sent: 28 February 2008 16:03 To: Tomcat Users List Subject: Re: Does tomcat support multicores -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 James, James Law

RE: Does tomcat support multicores

2008-02-28 Thread Baron, Bob (LNG-HBE)
Original Message- From: Christopher Schultz [mailto:[EMAIL PROTECTED] Sent: Thursday, February 28, 2008 11:03 AM To: Tomcat Users List Subject: Re: Does tomcat support multicores -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 James, James Law wrote: | Os - WinXP | | CPU - Intel Quad Core | | Hi

RE: Does tomcat support multicores

2008-02-28 Thread Caldarale, Charles R
> From: Caldarale, Charles R > Subject: RE: Does tomcat support multicores > > > From: James Law [mailto:[EMAIL PROTECTED] > > Subject: Does tomcat support multicores > > > > Hi I'm running a tomcat server, and would like to know if Tomcat can > >

RE: Does tomcat support multicores

2008-02-28 Thread Caldarale, Charles R
> From: James Law [mailto:[EMAIL PROTECTED] > Subject: Does tomcat support multicores > > Hi I'm running a tomcat server, and would like to know if Tomcat can > make use of multiple cores? Of course - assuming your JVM does (and any modern JVM does - but you didn't bo

Re: Does tomcat support multicores

2008-02-28 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 James, James Law wrote: | Os - WinXP | | CPU - Intel Quad Core | | Hi I'm running a tomcat server, and would like to know if Tomcat can | make use of multiple cores? When I max the server out, all 4 cores see | little usage however the java process n

Does tomcat support multicores

2008-02-28 Thread James Law
Os - WinXP CPU - Intel Quad Core Hi I'm running a tomcat server, and would like to know if Tomcat can make use of multiple cores? When I max the server out, all 4 cores see little usage however the java process never uses more than 25%. So this makes me believe that Tomcat does not make use of a