From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oliver Neukum Subject: Re: speeding up swapoff Date: Wed, 29 Aug 2007 18:18:42 +0200 References: <1188394172.22156.67.camel@localhost> <200708291636.48323.oliver@neukum.org> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8BIT Content-Disposition: inline Message-Id: <200708291818.44089.oliver@neukum.org> Sender: owner-linux-mm@kvack.org Return-Path: To: Hugh Dickins Cc: Arjan van de Ven , Daniel Drake , linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: Am Mittwoch 29 August 2007 schrieb Hugh Dickins: > On Wed, 29 Aug 2007, Oliver Neukum wrote: > > Am Mittwoch 29 August 2007 schrieb Arjan van de Ven: > > > Another question, if this is during system shutdown, maybe that's a > > > valid case for flushing most of the pagecache first (from userspace) > > > since most of what's there won't be used again anyway. If that's enough > > > to make this go faster... > > > > Is there a good reason to swapoff during shutdown? > > Three reasons, I think, only one of them compelling: > > 1. Tidiness. > 2. So swapoff gets testing and I get to hear of any bugs in it. > 3. If a regular swapfile is used instead of a disk partition, you > need to swapoff before its filesystem can be unmounted cleanly. Yes. I hadn't thought of that. I am using a dedicated disk. Regards Oliver -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org