From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wu Fengguang Subject: Re: [PATCH 15/18] writeback: charge leaked page dirties to active tasks Date: Wed, 7 Sep 2011 17:06:16 +0800 Message-ID: <20110907090615.GA13841@localhost> References: <20110904015305.367445271@intel.com> <20110904020916.588150387@intel.com> <1315325796.14232.20.camel@twins> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: "linux-fsdevel@vger.kernel.org" , Andrew Morton , Jan Kara , Christoph Hellwig , Dave Chinner , Greg Thelen , Minchan Kim , Vivek Goyal , Andrea Righi , linux-mm , LKML To: Peter Zijlstra Return-path: Content-Disposition: inline In-Reply-To: <1315325796.14232.20.camel@twins> Sender: owner-linux-mm@kvack.org List-Id: linux-fsdevel.vger.kernel.org On Wed, Sep 07, 2011 at 12:16:36AM +0800, Peter Zijlstra wrote: > On Sun, 2011-09-04 at 09:53 +0800, Wu Fengguang wrote: > > The solution is to charge the pages dirtied by the exited gcc to the > > other random gcc/dd instances. > > random dirtying task, seeing it lacks a !strcmp(t->comm, "gcc") || ! > strcmp(t->comm, "dd") clause. OK. > > It sounds not perfect, however should > > behave good enough in practice. > > Seeing as that throttled tasks aren't actually running so those that are > running are more likely to pick it up and get throttled, therefore > promoting an equal spread.. ? Exactly. Let me write that into changelog :) Thanks, Fengguang -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org