Date: Fri, 05 Dec 2014 14:38:27 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-threads@FreeBSD.org Subject: [Bug 195098] pthread lock performance degradation on single CPU VM in FreeBSD 10.0 Message-ID: <bug-195098-16-9wBQoa652w@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-195098-16@https.bugs.freebsd.org/bugzilla/> References: <bug-195098-16@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195098 Ed Maste <emaste@freebsd.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|New |Closed Resolution|--- |Unable to Reproduce Summary|pthread lock performance |pthread lock performance |degradation on single CPU |degradation on single CPU |VM |VM in FreeBSD 10.0 --- Comment #4 from Ed Maste <emaste@freebsd.org> --- In comment 2 I missed including in the reproduction detail that this was the 10.0-REL VM. When I mentioned this kib@ pointed out that this is fixed already in r270423, and is included in the FreeBSD 10.1 release. > Restore pre-r239157 handling of sched_yield(), when thread time slice was > aborted, allowing other threads to run. Without this change thread is just > rescheduled again, that was illustrated by provided test tool. HEAD: r270423 https://svnweb.freebsd.org/base?view=revision&revision=270423 stable/10: r271194 https://svnweb.freebsd.org/base?view=revision&revision=271194 stable/9: r271195 https://svnweb.freebsd.org/base?view=revision&revision=271195 -- You are receiving this mail because: You are the assignee for the bug.
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