Date: Sun, 22 May 2016 18:45:25 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-threads@FreeBSD.org Subject: [Bug 209558] [request] Wakeup only one thread while kqueue events are available Message-ID: <bug-209558-16-MJM87EcFAA@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-209558-16@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209558 Konstantin Belousov <kib@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|New |Closed Resolution|--- |Works As Intended --- Comment #4 from Konstantin Belousov <kib@FreeBSD.org> --- (In reply to Jilles Tjoelker from comment #3) Such program must not use single kqueue for several threads, if the desire is to avoid the thundering herd issue. More important is that socket events are level triggered, i.e. readiness of the listen socket must be reported until the incoming connection is consumed. So the program behaviour is as intended. Change of wakeup(9) to wakeup_one(9) hides userspace bug, you just do not get all _required_ notifications since less threads are runnable. -- You are receiving this mail because: You are the assignee for the bug.home | help
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