Date: Mon, 19 Nov 2007 19:14:00 +0300 From: Alexey Popov <lol@chistydom.ru> To: Robert Watson <rwatson@FreeBSD.org> Cc: kris@FreeBSD.org, freebsd-stable@freebsd.org Subject: Re: 2 x quad-core system is slower that 2 x dual core on FreeBSD Message-ID: <4741B648.7090002@chistydom.ru> In-Reply-To: <20071119152214.J80667@fledge.watson.org> References: <4741905E.8050300@chistydom.ru> <20071119140019.V80667@fledge.watson.org> <4741A3A8.4010803@chistydom.ru> <20071119152214.J80667@fledge.watson.org>
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Hi. Robert Watson wrote: >> I tried SCHED_ULE, but got no difference: > Did you see no change in throughput, or no change in reported CPU use? No significant changes. > We should probably take this thread to performance@ and get Kris > involved. He may be interested in trying to reproduce your workload in > our testbed so we can perform measurements of our own, as well as > getting you to provide profiling information. One of the things we'd > most like to have are nice potted benchmarks for real-world workloads, > as that allows us to easily replay them, perform measurements, optimize, > etc. I can provide all profiling or configuration information you ask for. Except I can't provide PHP site source codes. Now I'm in situation that I can't install FreeBSD on all new servers because they are all based on 2xquad-core processors and I can't be sure it would work good. With best regards, Alexey Popov
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