-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Ron,
On 2/1/13 8:14 AM, Ron Wheeler wrote: > From our experience with a Spring app under Tomcat, the JVM memory > configuration looks low. You might try doubling it and seeing what > it does. That's a big jump for not knowing anything about the OP's environment, requirements, etc. > We found that the examples of Tomcat JVM memory configurations were > all designed for trivial apps. We had about 50 war files and lots > of heavy libraries(JasperReports, WebServices, Faces, etc.) so we > had lots of troubles until we gave Tomcat some real JVM room to > run. That's better advice than above. > MaxPermSize seems to me to be too low for a real Tomcat app. We run "real" apps under default PermGen all the time. They run just fine. > I don't see any point for such a small -Xms256 setting since that > seems to be barely enough to get Tomcat started. In my testing, Tomcat takes roughly 12MiB of heap space after startup. I haven't actually tried to restrict Tomcat's JVM to that little amount of memory because it's impractical for adding any of our webapps to it. But saying that Tomcat needs a quarter gig just to get started is wildly out of step with reality. > -Xmx11460 seems very high. We did very well with 10% of that > number. Again, this is very environment-specific. Perhaps you have a webapp that doesn't use a lot of memory, while the OP may have a ton of stuff in his sessions, caches, etc. Maybe he needs 10GiB of heap space. Maybe he doesn't. - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEUEAREIAAYFAlEME80ACgkQ9CaO5/Lv0PC3mwCYgURV99Bx/H5dq88PcsHd4Taa 8ACgoGUdHfl1JOh5Z6kn/reuPXSHtQY= =+9Jd -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
