From owner-freebsd-current@FreeBSD.ORG Wed Oct 16 23:34:30 2013 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id B27A767C; Wed, 16 Oct 2013 23:34:30 +0000 (UTC) (envelope-from prvs=100105a393=killing@multiplay.co.uk) Received: from mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 27E902268; Wed, 16 Oct 2013 23:34:29 +0000 (UTC) Received: from r2d2 ([82.69.141.170]) by mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) (MDaemon PRO v10.0.4) with ESMTP id md50006424165.msg; Thu, 17 Oct 2013 00:34:25 +0100 X-Spam-Processed: mail1.multiplay.co.uk, Thu, 17 Oct 2013 00:34:25 +0100 (not processed: message from valid local sender) X-MDDKIM-Result: neutral (mail1.multiplay.co.uk) X-MDRemoteIP: 82.69.141.170 X-Return-Path: prvs=100105a393=killing@multiplay.co.uk X-Envelope-From: killing@multiplay.co.uk Message-ID: From: "Steven Hartland" To: "Justin T. Gibbs" , "Vitalij Satanivskij" References: <1379069539.824504225.3b9xwugp@fmst-6.ukr.net> <74C1D072-77BB-4D6C-B78F-C8D2731FA0CF@sarenet.es> <1379333192.127359970.ma5jnbc5@fmst-6.ukr.net> <1379334340.567465877.0b1lli6r@fmst-6.ukr.net> <8365CE736DC749DF95D0030A725211F6@multiplay.co.uk> <02549AD9-C456-4E17-927C-B4BCC97F8CC8@freebsd.org> <4AA28730F331444AB13108ABF0CD68B7@multiplay.co.uk> <1379496242.750778745.m0ksff1m@fmst-6.ukr.net> <20131016080100.GA27758@hell.ukr.net> <3A44A8F6-8B62-4A23-819D-B91A3E6E5EF9@freebsd.org> Subject: Re: ZFS secondarycache on SSD problem on r255173 Date: Thu, 17 Oct 2013 00:34:44 +0100 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="Windows-1252"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 Cc: freebsd-current@freebsd.org, Borja Marcos , Dmitriy Makarov X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Oct 2013 23:34:30 -0000 ----- Original Message ----- From: "Justin T. Gibbs" > I took a quick look at arc.c and see that the trim_map_free() > calls don't take into account ashift. I don't know if that > has anything to do with your problem though. I would expect > this would just make the trim less efficient, but I need to > dig further. This is actually done by TRIM_ZIO_END in trim_map_free. 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.