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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