Date: Sat, 8 Apr 2006 18:32:46 +0800 From: David Xu <yfxu@corp.netease.com> To: Michael Vince <mv@roq.com> Cc: Sven Petai <hadara@bsd.ee>, freebsd-performance@freebsd.org, Steven Hartland <killing@multiplay.co.uk> Subject: Re: mysql performance on 4 * dualcore opteron Message-ID: <200604081832.46971.yfxu@corp.netease.com> In-Reply-To: <44378600.7010004@roq.com> References: <200604041942.18767.hadara@bsd.ee> <200604081315.29842.yfxu@corp.netease.com> <44378600.7010004@roq.com>
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On Saturday 08 April 2006 17:44, Michael Vince wrote: > I have also tried putting my Perl under libthr for a single thread log > analyzer and to my surprise it even could process logs faster. > I don't know why, but I only know I did some micro optimizations in libthr, and the library is small and may be fully cached in L1 cache on athlon xp/64 CPU, don't take it seriously. ;-) > libthr is also really useful for actually paying attention to tops 'thr' > column since it does show actual true thread number activity, under > pthread it shows a couple and under libc_r I could have 1000 threads > going but top just shows 1. > > Mike
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