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Date: Mon, 9 Oct 2006 01:23:45 +0200
From: "Attilio Rao" <attilio@freebsd.org>
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Subject: Re: [PATCH] MAXCPU alterable in kernel config - needs testers
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2006/10/9, Kip Macy <kmacy@fsmware.com>:
> In my own tree I have support for profiling all kernel locks (sx,
> lockmgr, spin mutexes, and blocking mutexes - not just the current
> profiling for blocking mutexes) which I'll commit after sun4v has
> been completely checked in.
>
> The biggest offenders on the workloads I've looked at are the
> lockmgr locks in VFS, user_map (sx) in VM, and sched_lock (spin).
>
> Substantial effort will be needed to make FreeBSD scale well past 4
> cpus.

Would you be interested in this:

perforce.freebsd.org://depot/user/attilio/attilio_smpng/...

Attilio


-- 
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