Date: Sun, 31 Jan 1999 05:22:03 -0500 (EST) From: Peter Dufault <dufault@hda.com> To: current@FreeBSD.ORG Cc: bde@zeta.org.au Subject: more about yield() versus sched_yield() Message-ID: <199901311022.FAA21322@hda.hda.com>
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> I've got a synch_yield() in kern_synch and a call into it from yield() > in kern_thread that duplicates the yield() behavior for the non-RTPRIO, > non-sched_yield() condition. synch_yield() also KASSERTS > that p == curproc since nothing else makes sense. While we're discussing yield here's a question. The difference between yield() and sched_yield() is that yield unconditionally yields while sched_yield() won't if you are the highest priority process and the only process in your run queue. Does anyone know the reuirements on yield() and would it continue to function for us if it worked the same as sched_yield()? Peter -- Peter Dufault (dufault@hda.com) Realtime development, Machine control, HD Associates, Inc. Safety critical systems, Agency approval To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the messagehelp
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