From owner-svn-src-head@freebsd.org Mon Oct 17 09:32:12 2016 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id AD68CC15BE2 for ; Mon, 17 Oct 2016 09:32:12 +0000 (UTC) (envelope-from steven.hartland@multiplay.co.uk) Received: from mail-lf0-x22c.google.com (mail-lf0-x22c.google.com [IPv6:2a00:1450:4010:c07::22c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 2D1B61355 for ; Mon, 17 Oct 2016 09:32:12 +0000 (UTC) (envelope-from steven.hartland@multiplay.co.uk) Received: by mail-lf0-x22c.google.com with SMTP id x79so284967105lff.0 for ; Mon, 17 Oct 2016 02:32:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=multiplay-co-uk.20150623.gappssmtp.com; s=20150623; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to; bh=FXBof/bJq4K8A/ha7t06USXxBDSo39Id4ePe2r1exBs=; b=uOLTvLooihXihZyhSZcJx8trdCEGnAE76MjlRnoRHtgirtQJKRANr9Z/7h8JGM4N1r YeEFccRl5Q1lELXaq+sT9FKY8MLYC1vioavsLQ/kIP8Imt90OnDfiJH7srxFh0EA1C3C l62iSqcg+gKQTO2fIrXRJC45RfqbPdfkhcxb4YFN9Mcuohwaxx5DZzQY3mf0KrKnlzur LUEB5jx4cnTIHTYirDB6ysO50pbt/MDvqbxXnmvhNOb8FX9UigfT+MoRO1P6xUz5Rnos 0aIj1TZwN/iBYPyrZEhEaf+4QnsQx+EqskYm14TzHTpUCkXBACCsUwpx0s1Y2M830CMq Uxdg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to; bh=FXBof/bJq4K8A/ha7t06USXxBDSo39Id4ePe2r1exBs=; b=ha0GENmiLYJIuRyPfT7V+vbessXRx3XDMLqJF1PMZQVgCCx7dnFFymHnbbvDieZcmN luWCeBaDsXW5oofM0W714adqoC113gdGLIIEJcRw6usRb5Z2+Yb3tNoPNLPsQjhYlHAY ccg1sCwn8MDmXejtHPagg4pmSFGqFa+VJfcEOxsxQzL92cYpWjPByPjNxELD1HYKCAvW iAEb0HFXsI1Ota3Q6Lzzv88NEcrOm0U8q5FfuKHkCEBKOd1zHhsO1MuccyOyZxHQYnQY yaEtTUI9R/soPMqEEZj7bIFkl3dfPLfowDRE/D4N1pI7La/6BA9OAuFhojd20OT876j3 1e2w== X-Gm-Message-State: AA6/9RmExnRw08Ls0BR3vBdej+yZj1Q9Z/E2g6yCJbTcFR7NwJmeIXAP06KPXi7P36cxgGnr X-Received: by 10.25.99.4 with SMTP id x4mr11801856lfb.128.1476696729739; Mon, 17 Oct 2016 02:32:09 -0700 (PDT) Received: from [10.10.1.58] ([185.97.61.26]) by smtp.gmail.com with ESMTPSA id b188sm7391465lfg.41.2016.10.17.02.32.08 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 17 Oct 2016 02:32:08 -0700 (PDT) Subject: Re: svn commit: r307507 - head/sys/cam/scsi To: Alexander Motin , src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org References: <201610170835.u9H8ZvQi037190@repo.freebsd.org> <14e5b11b-d623-fe1b-2ad3-088961d1ffab@multiplay.co.uk> <9d9c7a6a-74cf-e3f5-4aba-02e4ed636fbe@FreeBSD.org> From: Steven Hartland Message-ID: <00584f8b-9e2d-0e69-98bd-2633136acdf3@multiplay.co.uk> Date: Mon, 17 Oct 2016 10:32:34 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: <9d9c7a6a-74cf-e3f5-4aba-02e4ed636fbe@FreeBSD.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Oct 2016 09:32:12 -0000 On 17/10/2016 09:51, Alexander Motin wrote: > On 17.10.2016 11:45, Steven Hartland wrote: >> IIRC the timeout for this was intentionally lower than the default, >> might be worth just checking. > I did traced back the commit history, and it was hardcoded to that value > since the beginning 18 years ago. Theoretically SYNCHRONIZE CACHE may > require even more time then WRITE, since nobody knows how big can be > write caches and how many writes are sitting there. Cool, must be thinking about something else that was added recently then, thanks for checking :)