Date: Fri, 14 Jan 2011 17:06:54 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/kern sched_4bsd.c sched_ule.c subr_sleepqueue.c src/sys/sys priority.h Message-ID: <201101141707.p0EH7Bhx018310@repoman.freebsd.org>
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jhb 2011-01-14 17:06:54 UTC
FreeBSD src repository
Modified files:
sys/kern sched_4bsd.c sched_ule.c
subr_sleepqueue.c
sys/sys priority.h
Log:
SVN rev 217410 on 2011-01-14 17:06:54Z by jhb
Rework realtime priority support:
- Move the realtime priority range up above kernel sleep priorities and
just below interrupt thread priorities.
- Contract the interrupt and kernel sleep priority ranges a bit so that
the timesharing priority band can be increased. The new timeshare range
is now slightly larger than the old realtime + timeshare ranges.
- Change the ULE scheduler to no longer use realtime priorities for
interactive threads. Instead, the larger timeshare range is now split
into separate subranges for interactive and non-interactive ("batch")
threads. The end result is that interactive threads and non-interactive
threads still use the same priority ranges as before, but realtime
threads now have a separate, dedicated priority range.
- Do not modify the priority of non-timeshare threads in sched_sleep()
or via cv_broadcastpri(). Realtime and idle priority threads will
no longer have their priorities affected by sleeping in the kernel.
Reviewed by: jeff
Revision Changes Path
1.149 +1 -1 src/sys/kern/sched_4bsd.c
1.290 +13 -5 src/sys/kern/sched_ule.c
1.73 +2 -1 src/sys/kern/subr_sleepqueue.c
1.7 +11 -11 src/sys/sys/priority.h
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