From owner-freebsd-fs@FreeBSD.ORG Tue Sep 16 16:50:53 2014 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id D1E82473 for ; Tue, 16 Sep 2014 16:50:53 +0000 (UTC) Received: from fs.denninger.net (wsip-70-169-168-7.pn.at.cox.net [70.169.168.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "NewFS.denninger.net", Issuer "NewFS.denninger.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 7B0D6B1D for ; Tue, 16 Sep 2014 16:50:53 +0000 (UTC) Received: from [192.168.1.40] (localhost [127.0.0.1]) by fs.denninger.net (8.14.9/8.14.8) with ESMTP id s8GGopc5017070 for ; Tue, 16 Sep 2014 11:50:51 -0500 (CDT) (envelope-from karl@denninger.net) Received: from [192.168.1.40] (TLS/SSL) [192.168.1.40] by Spamblock-sys (LOCAL/AUTH); Tue Sep 16 11:50:51 2014 Message-ID: <54186A60.7050209@denninger.net> Date: Tue, 16 Sep 2014 11:50:40 -0500 From: Karl Denninger User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: freebsd-fs@freebsd.org Subject: Re: Candidate ZFS ARC patch does not cleaning apply to HEAD r271671 References: In-Reply-To: Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms010208010108000704090202" X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Sep 2014 16:50:53 -0000 This is a cryptographically signed message in MIME format. --------------ms010208010108000704090202 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: quoted-printable In addition the candidate "head" patch does not include resizing of the=20 dirty write buffers to prevent slamming the system's VM into paging. It = does fix a number of other problems. There is a candidate against STABLE that incorporates Steve's patch and=20 those further changes; the entire thread (long!) discussing it is here:=20 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D187594 Adding the write-buffer resizing against head would be very easy; there=20 is open debate on whether it's the right thing to do or not but doing so = has a materially-positive impact on performance for my systems. On 9/16/2014 8:31 AM, Steven Hartland wrote: > That patch is against stable/10 not head > > The additional changes it adds aren't ideal, the latest version which > should be used at this time against head is: > ARC reclaim refactor (against head)=20 > https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D147070 > > Additional discussions on this can be found on the illumos list subject= : > ZFS Write Throttle Dirty Data Limit Interation with Free Memory > > ----- Original Message ----- From: "Michael Jung" > To: > Sent: Tuesday, September 16, 2014 2:11 PM > Subject: Candidate ZFS ARC patch does not cleaning apply to HEAD r27167= 1 > > >> Note: no problems patching/compiling/running against 10-stable=20 >> r271671+other revs >> >> Original patch source: >> >> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D147286&action=3D= edit >> >> Downloaded patch applied: >> >> http://216.26.158.189/zfs-candidate/zfs-candidate.patch >> >> Errors: >> >> http://216.26.158.189/zfs-candidate/patch.error >> http://216.26.158.189/zfs-candidate/arc.c.rej >> http://216.26.158.189/zfs-candidate/kmem.h.rej >> http://216.26.158.189/zfs-candidate/vm_pageout.c.rej >> >> Regards, >> >> Michael Jung >> >> >> >> >> >> _______________________________________________ >> freebsd-fs@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-fs >> To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" >> > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" > > > %SPAMBLOCK-SYS: Matched [@freebsd.org+], message ok --=20 Karl Denninger karl@denninger.net /The Market Ticker/ --------------ms010208010108000704090202 Content-Type: application/pkcs7-signature; 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