rawhide report: 20050706 changes
Dave Jones
davej at redhat.com
Wed Jul 6 20:49:29 UTC 2005
On Wed, Jul 06, 2005 at 01:49:05PM -0700, Jesse Keating wrote:
> On Wed, 2005-07-06 at 22:32 +0200, Arjan van de Ven wrote:
> > if it does it has "nx" in the flags section in /proc/cpuinfo
>
> Yes, it has NX. Thanks. I'll load up the SMP kernel. Are there any
> specific tests that could show a performance difference between up w/out
> NX and SMP w/ NX (and those thing that are re-enabled w/ NX)?
Any application which makes use of lots of syscalls should show
a noticable difference. Microbenchmarks have shown things like
context switching & pipe throughput also go up measurably when
sysenter is available.
Dave
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