From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: 2.5.34-mm4 From: Alan Cox In-Reply-To: References: Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: 16 Sep 2002 02:33:36 +0100 Message-Id: <1032140016.26857.24.camel@irongate.swansea.linux.org.uk> Mime-Version: 1.0 Sender: owner-linux-mm@kvack.org Return-Path: To: Rik van Riel Cc: Andrew Morton , "M. Edward Borasky" , Axel Siebenwirth , Con Kolivas , lkml , linux-mm@kvack.org, lse-tech@lists.sourceforge.net List-ID: On Sun, 2002-09-15 at 19:56, Rik van Riel wrote: > On Sun, 15 Sep 2002, Andrew Morton wrote: > > > - In -ac, there are noticeable stalls during heavy writeout. This > > may be an ext3 thing, but I can't think of any IO scheduling > > differences in -ac ext3. I'd be guessing that it is due to > > bdflush/kupdate lumpiness. I think so. I've always been conservative, I need rmap to pass cerberus still. But the rmap in -ac is out of date a little with the 2.5 tuning > This is also due to the fact that -ac has an older -rmap > VM. As in current 2.5, rmap can write out all inactive > pages ... and it did in some worst case situations. > > This is fixed in rmap14. > > (I hope Alan is done playing with IDE soon so I can push > him a VM update) The big one left to fix is the simplex device bug - which is an "I know why". The great mystery is the affair of taskfile pio write. Other than that its annoying glitches not big problems now. So send me rmap-14a patches by all means -- 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/