From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3D767997.B6B76833@zip.com.au> Date: Wed, 04 Sep 2002 14:22:31 -0700 From: Andrew Morton MIME-Version: 1.0 Subject: Re: nonblocking-vm.patch References: <3D766999.A9C14E1E@zip.com.au> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Rik van Riel Cc: "linux-mm@kvack.org" List-ID: Rik van Riel wrote: > > On Wed, 4 Sep 2002, Andrew Morton wrote: > > > > get cleaned. We can do this by simply refusing to > > > scan that zone again for a number of jiffies, say > > > 1/4 of a second. > > > > Well, it may be better to terminate that sleep earlier if IO > > completes. > > But only if enough IO completes. Otherwise we'll just end > up doing too much scanning for no gain again. > Well we want to _find_ the just-completed IO, yes? Which implies parking it onto the cold end of the inactive list at interrupt time, or a separate list or something. But let's look at the instrumentation and the profiles first. I expect it'll be OK. -- 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/