FreeBSD 5.3 et multiprocessor
From: ISP Informatique (mlh_at_ispinfo.fr)
Date: 03/09/05
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Date: Wed, 09 Mar 2005 11:07:51 +0100 To: freebsd-performance@freebsd.org
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 _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "freebsd-performance-unsubscribe@freebsd.org"
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