Date: Wed, 15 Sep 2010 17:54:39 -0400 From: jhell <jhell@DataIX.net> To: Steven Hartland <killing@multiplay.co.uk> 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: <4C91409F.9090204@DataIX.net> In-Reply-To: <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> <B35942AA5DC3444DAFFBE939016F5D33@multiplay.co.uk>
next in thread | previous in thread | raw e-mail | index | archive | help
On 09/15/2010 17:30, Steven Hartland wrote: > ----- 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? > Looking at the manual page vm_page_bits(9) I don't see a vm_page_is_validclean so really would it have a effect ?. -- jhell,v
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4C91409F.9090204>