Date: Mon, 15 Nov 2004 23:42:17 +0200 From: Petri Helenius <pete@he.iki.fi> To: Julian Elischer <julian@elischer.org> Cc: freebsd-threads@freebsd.org Subject: Re: performance tuning Message-ID: <419922B9.7050603@he.iki.fi> In-Reply-To: <41991B66.4090801@elischer.org> References: <419914F0.1010308@he.iki.fi> <41991A87.6010803@elischer.org> <41991B66.4090801@elischer.org>
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Julian Elischer wrote: > >> >> >> There is work proceeding on 3 fronts. >> >> * libthr continues to be improved by Mike. > Is there a guideline when one should consider using libthr? I haven't tried libthr for quite a while. >> >> * libpthread is being scrutinised for ineffiencies and problems. >> In particular M:N performance has a lot to be desired. > I suppose this requires both userland and kernel tracing/profiling? > >> >> Is that the American or British meaning of Momentarily? >> (i.e. "IN a moment" or "FOR a moment"? ) :-) > American. Do I sound like I talk funny? :-) >> >> What we will really want eventually is KTR output as well as profilings. >> >> i.e. output of ktrdump. > Do you have set of ALQ, MASK etc. you're interested in? It would help if I could get a ready set of options to drop into the kernel... Pete
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