Hi Mark, On Thu, Apr 8, 2010 at 1:48 PM, Mark Thomas <ma...@apache.org> wrote: > On 08/04/2010 12:12, Gregor Schneider wrote: >> Anybody has an idea what I might be missing here? > > That Java Heap Space + Perm Gen Space < OS process Space > > You are missing the memory used for: > - native code > - gc > - thread stacks >
I'd agree to that, however, somehow it suprises me that almost 1/2 a GB is used for native, gc, threads & stuff - wasn't aware that it is that much, specifically, that the memory-usage of said components seems to be increasing even further when enhancing Xmx / Xmx. Example: When using Xms/Xmx = 512M, MaxpermSize=384M, then the overall footprint is a bit less than 1GB When using Xmx/Xmx=1GB, MaxpermSize=384M, the overall footprint is 1.6GB. That means, for those "administrative" stuff in the first example less than 100M is used, but in the 2nd example it's more than double the size - is such a common behaviour? Rgds Gregor -- just because you're paranoid, don't mean they're not after you... gpgp-fp: 79A84FA526807026795E4209D3B3FE028B3170B2 gpgp-key available @ http://pgpkeys.pca.dfn.de:11371 @ http://pgp.mit.edu:11371/ skype:rc46fi --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
