Date: Fri, 28 May 1999 14:37:55 -0500 (EST) From: Alfred Perlstein <bright@rush.net> To: Geoffrey <jeff@jeff1.netpath.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: scheduler in freebsd's kernel Message-ID: <Pine.BSF.3.96.990528143529.9491V-100000@cygnus.rush.net> In-Reply-To: <199905281837.OAA00976@jeff1.netpath.net>
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On Fri, 28 May 1999, Geoffrey wrote: > > Does the system scheduler runn off of a interrupt driven timer or do > parts of the kernel call the scheduler ? both, at many points a process executing in the context of the kernel may need to yield while waiting for a resource, then it may explicitly call put itself to sleep to allow other things to run. This happens mostly while staging syncronous IO. Also, at certain points a process becomes un-interuptable, but this is very rare and for short periods of time. -Alfred To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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