Date: Fri, 15 Jan 2010 13:27:45 +0100 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-stable@freebsd.org Subject: Re: An old gripe: Reading via mmap stinks Message-ID: <hipmvt$f6h$1@ger.gmane.org> In-Reply-To: <4B4F9781.2050508@modulus.org> References: <200603232352.k2NNqPS8018729@gate.bitblocks.com> <200603241518.01027.mi%2Bmx@aldan.algebra.com> <20060325103927.GE703@turion.vk2pj.dyndns.org> <200603250920.14208@aldan> <20060325190333.GD7001@funkthat.com> <4B4F7CF5.4040307@aldan.algebra.com> <4B4F9781.2050508@modulus.org>
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Andrew Snow wrote: > > Hi Mikhail, I assume these tests were done on UFS. Have you tried ZFS? > I'm curious to see the results. I suspect it would be noticably worse :) AFAIK ZFS integration with mmap does at least one extra in-memory data copy.
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