Date: Wed, 15 Sep 2010 22:30:33 +0100 From: "Steven Hartland" <killing@multiplay.co.uk> To: "jhell" <jhell@DataIX.net> Cc: freebsd-fs@freebsd.org, Pawel Jakub Dawidek <pjd@freebsd.org>, Andriy Gapon <avg@freebsd.org> Subject: Re: zfs very poor performance compared to ufs due to lack of cache? Message-ID: <B35942AA5DC3444DAFFBE939016F5D33@multiplay.co.uk> References: <20100908084855.GF2465@deviant.kiev.zoral.com.ua> <4C874F00.3050605@freebsd.org> <A6D7E134B24F42E395C30A375A6B50AF@multiplay.co.uk> <4C8D087B.5040404@freebsd.org> <03537796FAB54E02959E2D64FC83004F@multiplay.co.uk> <4C8D280F.3040803@freebsd.org> <3FBF66BF11AA4CBBA6124CA435A4A31B@multiplay.co.uk> <4C8E4212.30000@freebsd.org> <B98EBECBD399417CA5390C20627384B1@multiplay.co.uk> <D79F15FEB5794315BD8668E40B414BF0@multiplay.co.uk> <20100915104635.GA59871@icarus.home.lan> <8E233260F0334BC58B2C07F383939F8E@multiplay.co.uk> <4C9131F6.10807@DataIX.net>
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----- Original Message ----- From: "jhell" jhell@DataIX.net > On 09/15/2010 06:54, Steven Hartland wrote: >> ----- Original Message ----- From: "Jeremy Chadwick" >> <freebsd@jdc.parodius.com> >>> Looks like Andriy just committed something to HEAD/CURRENT which might >>> address this: >>> http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/141305 >> >> Already running that as part of the patches unfortunately, it doesn't seem >> to have any effect. >> > > Is it ? vm_page_set_validclean(m, off, bytes); > I recall you saying that you added this from earlier in the thread. > could be wrong though but what Andriy committed was the following. > > or ? vm_page_set_valid(m, off, bytes); Ahh good catch I have: if (error == 0) vm_page_set_validclean(m, off, bytes); and not as mentioned by 141305: if (error == 0) vm_page_set_valid(m, off, bytes); Which should it actaully be? Regards Steve ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337 or return the E.mail to postmaster@multiplay.co.uk.
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