On Mon, Jun 05, 2006 at 12:14:55AM -0500, Javier Guerra wrote:
> On Sunday 04 June 2006 10:53 pm, Matthew Palmer wrote:
> > That's the crazy thing -- we've been monitoring everything we can, and we
> > can't find any anomalous bottlenecks. The application is naturally CPU
>
> just a wild guess, but on a heavily multithreaded and multiprocessor system
> like yours, its quite possible that a given JVM could use a non-optimal
> strategy on a Xen system. I think it's important to test different JVM's,
> and different 'bitness' of them (64bit vs. 32bit). Since 32bit x86 is _SO_
> register-starved, and Xen interferes with the infamous TLS trick, you should
> try to use a 64bit clean system. since you already stated that your software
> can't run on a 64bit JVM, maybe you could get some insight by running a
> benchmark with similar threading and processor requirements, on all
> combinations of 32bit, 64bit, Xen and non-Xen.
Hmm. You've given me some more ideas for benchmarking; I'll try out some
different combos (the different JVM idea is a particularly good one) and
report back to the list.
Thanks a lot for your help,
- Matt
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
|
Home