Hi all.
Does anyone know whether java uses more than one core? For example, if I have Tomcat running on say a quad core cpu and my application spawns four new threads, will each thread run on it's own core? Or, will they all run on the core that's running Tomcat?
If this was the case, it would imply that there is no point buying multi-core servers for java web apps.?!
Shaggy posted this at 02:04 — 26th January 2009.
They have: 112 posts
Joined: Dec 2008
If the server you are using is able to spawn threads and processes (which tomcat is), it is the operating system's job to schedule those threads and tasks to the different processors. Most modern unix and windows offerings handle scheduling at least four processors quite nicely.
Cheers,
Shaggy.