Date: Sun, 16 Sep 2007 00:34:03 -0700 (PDT) From: Jeff Roberson <jroberson@chesapeake.net> To: Roman Bogorodskiy <novel@FreeBSD.org> Cc: freebsd-current@FreeBSD.org Subject: Re: SCHED_ULE on desktop system Message-ID: <20070916003323.U4507@10.0.0.1> In-Reply-To: <20070916071421.GA1320@underworld.novel.ru> References: <20070916061932.GA93480@underworld.novel.ru> <20070915234855.G531@10.0.0.1> <20070916071421.GA1320@underworld.novel.ru>
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[-- Attachment #1 --] On Sun, 16 Sep 2007, Roman Bogorodskiy wrote: > Jeff Roberson wrote: > >> This is contrary to the experiences of many others. Can you send me your >> dmesg? There may be something about your particular hardware that is >> triggering a bug. ULE is definitely designed to be responsive on the >> desktop. > > Thanks for the quick answer! > > Here's my dmesg: http://people.freebsd.org/~novel/misc/dmesg.txt Roman, The enclosed patch helps things on my system, however, there are still some delays due to IO issues. Let me know if this helps. Thanks, Jeff > > Roman Bogorodskiy > [-- Attachment #2 --] Index: sched_ule.c =================================================================== RCS file: /home/ncvs/src/sys/kern/sched_ule.c,v retrieving revision 1.205 diff -u -r1.205 sched_ule.c --- sched_ule.c 20 Aug 2007 06:34:20 -0000 1.205 +++ sched_ule.c 16 Sep 2007 07:02:52 -0000 @@ -394,7 +394,7 @@ * This queue contains only priorities between MIN and MAX * realtime. Use the whole queue to represent these values. */ - if ((flags & (SRQ_BORROWING|SRQ_PREEMPTED)) == 0) { + if ((flags & SRQ_BORROWING) == 0) { pri = (pri - PRI_MIN_TIMESHARE) / TS_RQ_PPQ; pri = (pri + tdq->tdq_idx) % RQ_NQS; /*
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