Date: Thu, 9 Mar 2006 16:38:52 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/amd64/amd64 mp_machdep.c src/sys/i386/i386 mp_machdep.c Message-ID: <200603091638.k29Gcq4i004809@repoman.freebsd.org>
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jhb 2006-03-09 16:38:52 UTC
FreeBSD src repository
Modified files:
sys/amd64/amd64 mp_machdep.c
sys/i386/i386 mp_machdep.c
Log:
Flip the switch and don't route interrupts to hyperthreads in a HT system.
In at least one benchmark this showed around a 20% performance increase.
If other workloads do benefit from having hyperthreads service interrupts,
we can always make this a loader tunable.
MFC after: 3 days
Tested by: ps
Revision Changes Path
1.270 +2 -2 src/sys/amd64/amd64/mp_machdep.c
1.264 +2 -2 src/sys/i386/i386/mp_machdep.c
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