From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 26 Jun 2001 02:10:49 -0300 (BRT) From: Marcelo Tosatti Subject: Re: [RFC] VM statistics to gather In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: Rik van Riel , linux-mm@kvack.org List-ID: On Tue, 26 Jun 2001, Marcelo Tosatti wrote: > > On Tue, 26 Jun 2001, Andrew Morton wrote: > > > Rik van Riel wrote: > > > > > > Hi, > > > > > > I am starting the process of adding more detailed instrumentation > > > to the VM subsystem and am wondering which statistics to add. > > > A quick start of things to measure are below, but I've probably > > > missed some things. Comments are welcome ... > > > > Neat. > > > > - bdflush wakeups > > - pages written via page_launder's writepage by kswapd > > - pages written via page_launder's writepage by non-PF_MEMALLOC > > tasks. (ext3 has an interest in this because of nasty cross-fs > > reentrancy and journal overflow problems with writepage) > > Does ext3 call page_launder() with __GFP_IO ? > > If it does not (which I believe so), page_launder() without PF_MEMALLOC > never happens. s/page_launder()/page_launder() without PF_MEMALLOC/ -- 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/