Date: Mon, 11 Nov 2002 17:26:08 -0500 (EST) From: Andrew Gallatin <gallatin@cs.duke.edu> To: "Michael A. Mackey" <michael-mackey@uiowa.edu> Cc: freebsd-alpha@freebsd.org Subject: Re: Extreme time drift in SMP mode Message-ID: <15824.11904.925794.589053@grasshopper.cs.duke.edu> In-Reply-To: <1037053307.14529.24.camel@focaccia.> References: <1037050487.14529.17.camel@focaccia.> <15824.10302.110339.545856@grasshopper.cs.duke.edu> <1037053307.14529.24.camel@focaccia.>
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Michael A. Mackey writes: > test timing results: > > bash$ /usr/bin/time sleep 10 > 10.01 real 0.00 user 0.00 sys > > bash$ time sleep 10 > real 0m10.017s > user 0m0.003s > sys 0m0.011s > > I have two 291 MHz cpus. > > Left on its own, the system loses time dramatically (about 10 minutes on > the half hour). And timing against a working clock (like your watch, or another computer?) Eg, how long did the sleep really take? 5 seconds? 20 seconds? Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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