Date: Sat, 8 Apr 2006 13:15:29 +0800 From: David Xu <yfxu@corp.netease.com> To: freebsd-performance@freebsd.org Cc: Michael Vince <mv@roq.com>, Sven Petai <hadara@bsd.ee>, Steven Hartland <killing@multiplay.co.uk> Subject: Re: mysql performance on 4 * dualcore opteron Message-ID: <200604081315.29842.yfxu@corp.netease.com> In-Reply-To: <4434DB85.10104@roq.com> References: <200604041942.18767.hadara@bsd.ee> <021b01c658d2$de254a00$b3db87d4@multiplay.co.uk> <4434DB85.10104@roq.com>
next in thread | previous in thread | raw e-mail | index | archive | help
=D4=DA Thursday 06 April 2006 17:12=A3=ACMichael Vince =D0=B4=B5=C0=A3=BA > I have also done benchmarking with libthr against Apache using 'ab' and=20 > found it can deliver an extra amount of megabytes/sec of data (I think=20 > it was about an extra 2000/requests sec) at the cost of giving the=20 > server from what I remember almost double the 'average load' according=20 > to 'top' > Given that if your machine has nothing else to do but deliver data=20 > purely from Apache then even libthr is more worth while for Apache as wel= l. >=20 > Mike libpthread default uses M:N threads which means a thread may be on userland scheduler's run queue, and FreeBSD kernel does not know,=20 so it will be not shown on average load, default system tools are not very useful here. David Xu
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200604081315.29842.yfxu>