On Feb 28, 2007, at 9:53 AM, Levy, Alan wrote:
When I do a TOP, the Performance Toolkit shows a spike to 90% of the
cpu. When I ctrl-C out of top, it goes down to 32% (normal).
This one server is a memory hog. It uses Tomcat (on sles9 sp3) with
350
connections at one time (I do not own this server, I just set it up
and
we are currently rearchitechting it using sles10).
When I do a PS, it pages on forever (actually 400+ processes).
Would vdisk help in this situation (or maybe 1G on disk and 500M on
vdisk or some variation) ?
That's a pretty obscene amount of resource consumption by top. I
don't *think* it should be doing that to you.
Anyway, if you're not storage-constrained on the real box. I'd put
some of your swap on VDISK. Even if you *are* storage-constrained,
as long as you have backing page space to cover it, it won't *hurt*
performance any. If you *do* have some real storage to spare, it
should help your performance.
Also, that's a LOT of processes, but if you have 350 connected users
and each is getting its own process (do threads still show up to ps
as independent processes?), then, yeah, that's probably not
unreasonable.
Adam
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