From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 28 Sep 2000 16:31:05 +0200 From: Andrea Arcangeli Subject: Re: [patch] vmfixes-2.4.0-test9-B2 - fixing deadlocks Message-ID: <20000928163105.H17518@athlon.random> References: <20000927155608.D27898@athlon.random> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: ; from riel@conectiva.com.br on Thu, Sep 28, 2000 at 07:08:51AM -0300 Sender: owner-linux-mm@kvack.org Return-Path: To: Rik van Riel Cc: Christoph Rohland , "Stephen C. Tweedie" , Ingo Molnar , Linus Torvalds , Roger Larsson , MM mailing list , linux-kernel@vger.kernel.org List-ID: On Thu, Sep 28, 2000 at 07:08:51AM -0300, Rik van Riel wrote: > taking care of this itself. But this is not something the OS > should prescribe to the application. Agreed. > (unless the SHM users tell you that this is the normal way > they use SHM ... but as Christoph just told us, it isn't) shm is not used as I/O cache from 90% of the apps out there because normal apps uses the OS cache functionality (90% of those apps doesn't use rawio to share a black box that looks like a scsi disk via SCSI bus connected to other hosts as well). I for sure agree shm swapin/swapout is very important. (we moved shm swapout/swapin to swap cache with readaround for that reason) Andrea -- 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.eu.org/Linux-MM/