Date: Wed, 12 Jul 2000 19:00:57 -0700 (PDT) From: Peter Wemm <peter@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/i386 swtch.s Message-ID: <200007130200.TAA44875@freefall.freebsd.org>
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peter 2000/07/12 19:00:57 PDT
Modified files: (Branch: RELENG_4)
sys/i386/i386 swtch.s
Log:
MFC [1.92] Critical non-SMP fix. Without this, a context switch happens
for *every* syscall, slowing down syscalls a lot. (eg: 1.6 million
getpid() calls per second drops to 400K calls/sec)
Matt forgot this when he MFC'ed the SMP changes to RELENG_4. Without
this, AST_RESCHED is an undefined symbol in /kernel. It is particularly
interesting that gas/ld do not notice it.
Revision Changes Path
1.89.2.2 +2 -2 src/sys/i386/i386/swtch.s
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