Date: Sun, 06 Apr 2003 15:25:54 GMT From: Tor.Egge@cvsup.no.freebsd.org To: des@ofug.org 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: <20030406152554B.tegge@cvsup.no.freebsd.org> In-Reply-To: <xzpr88f6dfe.fsf@flood.ping.uio.no> References: <xzp1y0gofxj.fsf@flood.ping.uio.no> <20030406004043E.tegge@cvsup.no.freebsd.org> <xzpr88f6dfe.fsf@flood.ping.uio.no>
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> Is there a simple procedure to determine whether the TSCs on any given > multi-CPU machine are synchronized? Ensure that the TSCs are used, then run a program which calls gettimeofday() in a loop and prints an error message each time the clock steps backwards. Repeat procedure after 1 day of uptime. - Tor Egge
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