Date: Fri, 21 May 2004 11:23:07 -0400 From: John Baldwin <jhb@FreeBSD.org> To: freebsd-amd64@FreeBSD.org, John-Mark Gurney <gurney_j@efn.org> Subject: Re: Why is MySQL nearly twice as fast on Linux/AMD64 Vs. FreeBSD/AMD64? Message-ID: <200405211123.07857.jhb@FreeBSD.org> In-Reply-To: <20040519172913.GU601@funkthat.com> References: <5.2.0.9.2.20040519052743.04365f78@mail.ojoink.com> <5.2.0.9.2.20040519060611.0435f750@mail.ojoink.com> <20040519172913.GU601@funkthat.com>
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On Wednesday 19 May 2004 01:29 pm, John-Mark Gurney wrote: > libpthread (aka libkse) is a design for M:N threads, and requires > the user of pthreads to create new system scoped threads to make > use of multiple cpu's... No it doesn't. Each kse group has one KSE per CPU, so it can schedule threads onto multiple CPUs and it will do so if there are multiple runnable threads. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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