Date: Wed, 22 Oct 2003 13:15:10 -0700 (PDT) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/i386 machdep.c mp_machdep.c Message-ID: <200310222015.h9MKFBCf022574@repoman.freebsd.org>
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jhb 2003/10/22 13:15:10 PDT
FreeBSD src repository
Modified files: (Branch: RELENG_4)
sys/i386/i386 machdep.c mp_machdep.c
Log:
MFC: Always enable hyperthreading to avoid lockups due to APIC interrupt
routing problems.
- Enable cpu_idle_hlt for the SMP case by default since that significantly
helps HTT performance.
- Provide a facility for disabling individual CPUs by refusing to schedule
processes on them.
- Use the above to provide a sysctl for disabling or enabling all logical
CPUs. The default is to disable all logical CPUs.
- Remove the 'HTT' kernel option now that it is obsolete.
Submitted by: ps
Approved by: re (murray)
Revision Changes Path
1.385.2.34 +6 -4 src/sys/i386/i386/machdep.c
1.115.2.19 +96 -24 src/sys/i386/i386/mp_machdep.c
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