Date: Sat, 05 Apr 2003 10:19:42 +0200 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Bruce Evans <bde@zeta.org.au> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/conf options.i386 src/sys/i386/i386 tsc.c src/sys/i386/conf NOTES Message-ID: <17522.1049530782@critter.freebsd.dk> In-Reply-To: Your message of "Sat, 05 Apr 2003 17:25:23 %2B1000." <20030405171037.Y37234@gamplex.bde.org>
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In message <20030405171037.Y37234@gamplex.bde.org>, Bruce Evans writes: >On Fri, 4 Apr 2003, Tor Egge wrote: > >> tegge 2003/04/04 15:54:47 PST >> >> FreeBSD src repository >> >> Modified files: >> sys/conf options.i386 >> sys/i386/i386 tsc.c >> sys/i386/conf NOTES >> Log: >> Add SMP_TSC option, which can be used on SMP systems where the TSCs >> are synchronized to reduce context switch cost. > >This should be implemented by making the TSC timecounter available on >all systems that have a TSC, but not actually using it for the SMP case >unless it is enabled using sysctl "machdep.timecounter.hardware=TSC". That would make more sense, yes. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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