Date: Tue, 10 Nov 2009 19:56:56 +0000 From: Rui Paulo <rpaulo@freebsd.org> To: Sam Leffler <sam@errno.com> Cc: freebsd-arm@freebsd.org Subject: Re: SCHED_ULE? Message-ID: <43EE151E-574E-4A17-9946-0BC5A6B3BC69@freebsd.org> In-Reply-To: <4AF8EE61.8060502@errno.com> References: <C534D902-9EAD-40DA-9A5E-8189592A9F77@freebsd.org> <20091109102704.GA75988@ci0.org> <4AF8EE61.8060502@errno.com>
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Hi, On 10 Nov 2009, at 04:38, Sam Leffler wrote: > Olivier Houchard wrote: >> On Sun, Nov 08, 2009 at 01:30:48PM +0000, Rui Paulo wrote: >>> Hi, >>> I guess this has been discussed in the past but, can't we turn on = ULE on ARM embedded systems ? What's the bottleneck or performance = regression (assuming there's one) ? >>>=20 >>> -- >>> Rui Paulo >> Hi, >> At one point ULE was buggy on arm, but I think it's been fixed like = years ago, >> so it should be safe to use it. >=20 > Last I measured it was slower than 4BSD on my xscale boards (not much = but measurable). This was mostly doing network packet pushing = (wired+wireless). I also tested this on the Cambria board and I concluded the same (I used = sysbench). -- Rui Paulo
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