Date: Fri, 16 Jul 2004 12:16:28 +0200 From: "Daniel Eriksson" <daniel_k_eriksson@telia.com> To: "'Robert Watson'" <rwatson@freebsd.org> Cc: freebsd-current@freebsd.org Subject: RE: Native preemption is the culprit [was Re: today's CURRENTlockups] Message-ID: <!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAAAAAAAAA0VcX9IoJqUaXPS8MjT1PdsKAAAAQAAAAwRTrgjlFHESrKDnpN0GVQQEAAAAA@telia.com> In-Reply-To: <Pine.NEB.3.96L.1040712153808.34546D-100000@fledge.watson.org>
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Robert Watson wrote: > Per my earlier post, I've experienced similar unreliability. The work > around I'm using is to build with "#define PREEMPTION" from param.h > disabled. This results in a quite usable kernel, although > quite probably > more poor interrupt handling latency, etc. The server I'm running with preemption turned off becomes irresponsive and the load average skyrockets (10+) whenever I do something as simple as bzip2-compressing a file. Setting a nice value of 20 does not help at all. Are you experiencing similar results on your machine? /Daniel Eriksson
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