From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 31 Jul 2002 17:26:27 -0300 (BRT) From: Rik van Riel Subject: Re: throttling dirtiers In-Reply-To: <20020731162357.Q10270@redhat.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Benjamin LaHaise Cc: William Lee Irwin III , Andrew Morton , "linux-mm@kvack.org" List-ID: On Wed, 31 Jul 2002, Benjamin LaHaise wrote: > Why? Filling the entire ram with dirty pages is okay, and in fact you > want to support that behaviour for apps that "just fit" (think big > scientific apps). The only interesting point is that when you hit the > limit of available memory, the system needs to block on *any* io > completing and resulting in clean memory (which is reasonably low > latency), not a specific io which may have very high latency. Also, the system shouldn't try writing out the complete inactive list at once and blocking in __get_request_wait instead of grabbing pages as they become cleaned. regards, Rik -- Bravely reimplemented by the knights who say "NIH". http://www.surriel.com/ http://distro.conectiva.com/ -- 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/