Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161184Ab2JXVGG (ORCPT ); Wed, 24 Oct 2012 17:06:06 -0400 Received: from mail.skyhub.de ([78.46.96.112]:39089 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751447Ab2JXVGE (ORCPT ); Wed, 24 Oct 2012 17:06:04 -0400 Date: Wed, 24 Oct 2012 23:06:00 +0200 From: Borislav Petkov To: Andrew Morton Cc: Dave Hansen , Michal Hocko , linux-mm@kvack.org, KAMEZAWA Hiroyuki , KOSAKI Motohiro , LKML Subject: Re: [PATCH] add some drop_caches documentation and info messsge Message-ID: <20121024210600.GA17037@liondog.tnic> Mail-Followup-To: Borislav Petkov , Andrew Morton , Dave Hansen , Michal Hocko , linux-mm@kvack.org, KAMEZAWA Hiroyuki , KOSAKI Motohiro , LKML References: <20121012125708.GJ10110@dhcp22.suse.cz> <20121023164546.747e90f6.akpm@linux-foundation.org> <20121024062938.GA6119@dhcp22.suse.cz> <20121024125439.c17a510e.akpm@linux-foundation.org> <50884F63.8030606@linux.vnet.ibm.com> <20121024134836.a28d223a.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20121024134836.a28d223a.akpm@linux-foundation.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 803 Lines: 20 On Wed, Oct 24, 2012 at 01:48:36PM -0700, Andrew Morton wrote: > Well who knows. Could be that people's vm *does* suck. Or they have > some particularly peculiar worklosd or requirement[*]. Or their VM > *used* to suck, and the drop_caches is not really needed any more but > it's there in vendor-provided code and they can't practically prevent > it. I have drop_caches in my suspend-to-disk script so that the hibernation image is kept at minimum and suspend times are as small as possible. Would that be a valid use-case? -- Regards/Gruss, Boris. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/