Date: Wed, 25 Apr 2001 06:57:33 -0700 (PDT) From: Andrew Gallatin <gallatin@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/alpha/alpha swtch.s Message-ID: <200104251357.f3PDvYP70167@freefall.freebsd.org>
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gallatin 2001/04/25 06:57:33 PDT
Modified files:
sys/alpha/alpha swtch.s
Log:
alpha_fpstate_save is fairly expensive (critical enter/exit, possibly
saves 32 registers) to do on every context switch. This is only required
for SMP, so only do it there.
We should also look at moving the critical enter/exit out to the callers
Revision Changes Path
1.28 +3 -1 src/sys/alpha/alpha/swtch.s
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