Date: Tue, 19 Dec 2000 18:23:58 -0800 (PST) From: Matt Dillon <dillon@earth.backplane.com> To: Luigi Rizzo <rizzo@aciri.org> Cc: grog@lemis.com (Greg Lehey), freebsd-hackers@FreeBSD.ORG, n@nectar.com, hackers@FreeBSD.ORG Subject: Re: Optimizations (was: Why not another style thread? (was Re: cvs commit: src/lib/libc/gen getgrent.c)) Message-ID: <200012200223.eBK2Nwt63810@earth.backplane.com> References: <200012200050.eBK0okv70621@iguana.aciri.org>
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Guys, on intel a simple conditional is going to be a whole lot
expensive then a subroutine call no matter what, even if the
conditional misses. Subroutine calls are very fast on a P6, but
if they push anything on the stack at all beyond the return address they
are not going to be as fast as a conditional.
-Matt
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