Date: Wed, 09 Mar 2005 11:07:51 +0100 From: ISP Informatique <mlh@ispinfo.fr> To: freebsd-performance@freebsd.org Subject: FreeBSD 5.3 et multiprocessor Message-ID: <422ECAF7.4050407@ispinfo.fr>
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Hello, I recently have just passed a server of FreeBSD 4.2 to FreeBSD 5.3. The nasty surprise being which I note a notable reduction in the performances. The machine is a HP LT6000r, quadri Xeon 700 with 2Go of RAM. The results are appreciably the same ones with a kernel including or not "options SMP". Did I miss some thing? or perhaps did this already arrive at others? In particular, I has just crossed this in http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html > > options SCHED_4BSD # 4BSD scheduler > > > The traditional scheduler for FreeBSD. Depending on your system's > workload, you may gain performance by using the new ULE scheduler for > FreeBSD that has been designed specially for SMP, but works just fine > on UP systems too. If you wish to try it out, replace SCHED_4BSD with > SCHED_ULE in your configuration file. Did you already test? By advance, thank you, -- Hubert Adgié ISP Informatique www.ispinfo.fr 0890 710 147
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