Date: Tue, 23 Nov 1999 12:27:54 -0800 (PST) From: Julian Elischer <julian@whistle.com> To: Matt Dillon <dillon@FreeBSD.org> Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/i386/i386 mplock.s Message-ID: <Pine.BSF.4.20.9911231227230.3171-100000@home.elischer.org> In-Reply-To: <199911232007.MAA21921@freefall.freebsd.org>
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I thought %gs was per cpu too? (per luoqi) On Tue, 23 Nov 1999, Matt Dillon wrote: > dillon 1999/11/23 12:07:40 PST > > Modified files: > sys/i386/i386 mplock.s > Log: > Even better then using %fs:0 in our locked synchronizing instruction, > we instead use 0(%esp), which is per-cpu, already pretty much > guarenteed to be locked into the cache, and does not stress the cache's > set associativity. invlpg might also be a good choice (suggested by > Ingo). > > Obtained from: Linus Torvalds <torvalds@transmeta.com> > > Revision Changes Path > 1.29 +7 -6 src/sys/i386/i386/mplock.s > > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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