Date: Thu, 3 Feb 2005 02:17:35 -0800 (PST) From: Julian Elischer <julian@elischer.org> To: Doug Rabson <dfr@nlsystems.com> Cc: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> Subject: Re: cynchronised sleep capbilty.. Message-ID: <20050203021603.L583@localhost> In-Reply-To: <200502031012.22602.dfr@nlsystems.com> References: <20050201101113.J572@localhost> <200502011913.j11JDXsf084862@khavrinen.lcs.mit.edu> <200502031012.22602.dfr@nlsystems.com>
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On Thu, 3 Feb 2005, Doug Rabson wrote: > On Wednesday 02 February 2005 17:44, Julian Elischer wrote: > > very clever! > > > > however it doesn't phaselock to teh time and still drifts. > > I need to trigger on (for example) 10 second boundaries across 50 > > synchronised machines.. > > (so thatthe machines agree about the sampling period.) > > How about a cron job which writes characters into a fifo every ten > secconds. The script can wait for the next ten second mark by reading a > single char from the other end of the fifo. how does a cron job run evey 10 seconds? also this woudl seem something that is a bit beyond a simple shell script in terms of trouble you would go to. > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > -- +------------------------------------+ ______ _ __ | __--_|\ Julian Elischer | \ U \/ / hard at work in | / \ julian@elischer.org +------>x USA \ a very strange | ( OZ ) \___ ___ | country ! +- X_.---._/ presently in San Francisco \_/ \\ v
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