From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1RDkoM-0008Oy-8H for garchives@archives.gentoo.org; Tue, 11 Oct 2011 22:28:34 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 4F7E221C115; Tue, 11 Oct 2011 22:28:12 +0000 (UTC) Received: from postler.lichtfels.com (postler.lichtfels.com [78.46.92.195]) by pigeon.gentoo.org (Postfix) with ESMTP id 6088D21C0A8 for ; Tue, 11 Oct 2011 22:26:28 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by postler.lichtfels.com (Postfix) with ESMTP id D75841429B; Wed, 12 Oct 2011 00:30:37 +0200 (CEST) Received: from postler.lichtfels.com ([127.0.0.1]) by localhost (postler.lichtfels.com [127.0.0.1]) (amavisd-maia, port 10024) with LMTP id 29739-04; Wed, 12 Oct 2011 00:30:37 +0200 (CEST) Received: from hiro.oops.intern (mail.oops.co.at [213.129.238.225]) by postler.lichtfels.com (Postfix) with ESMTPA id 2CB1214297; Wed, 12 Oct 2011 00:30:37 +0200 (CEST) Message-ID: <4E94C292.2010601@xunil.at> Date: Wed, 12 Oct 2011 00:26:26 +0200 From: "Stefan G. Weichinger" Organization: oops! User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20111003 Thunderbird/7.0.1 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 To: gentoo-user@lists.gentoo.org CC: Neil Bothwick Subject: Re: [gentoo-user] SSDs, ext4, fstrim, discard ... References: <4E94AD7F.7050405@xunil.at> <20111011230541.436ea1a4@digimed.co.uk> In-Reply-To: <20111011230541.436ea1a4@digimed.co.uk> X-Enigmail-Version: 1.4a1pre Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.2a X-Archives-Salt: X-Archives-Hash: bc00dd5fcaec78477fe6a3d2674a187b Am 12.10.2011 00:05, schrieb Neil Bothwick: > This seems in accordance with the fstrim man page: > > "fstrim will report the same potential discard bytes each time, > but only sectors which had been written to between the discards > would actually be discarded by the storage device." Didn't see this so far. Gotta check once more. > What is the benefit of running fstrim manually over mounting with > discard? discard seems to slow down the fs by trimming all the time. I only report what I read. No tests done so far. S