From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from max.phys.uu.nl (max.phys.uu.nl [131.211.32.73]) by kvack.org (8.8.7/8.8.7) with ESMTP id HAA24498 for ; Sat, 11 Jul 1998 07:39:42 -0400 Date: Sat, 11 Jul 1998 13:18:35 +0200 (CEST) From: Rik van Riel Reply-To: Rik van Riel Subject: Re: cp file /dev/zero <-> cache [was Re: increasing page size] In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: Andrea Arcangeli Cc: Linux MM , Stephen Tweedie , Linux Kernel List-ID: On Wed, 8 Jul 1998, Andrea Arcangeli wrote: > On Wed, 8 Jul 1998, Stephen C. Tweedie wrote: > > >I'm unconvinced. It's pretty clear that the underlying problem is that > >the cache is far too agressive when you are copying large amounts of > >data around. The fact that interactive performance is bad suggests not > >that the swapping algorithm is making bad decisions, but that it is > >being forced to work with far too little physical memory due to the > >cache size. This morning I have posted a patch to Linux MM which can drastically improve this situation. For the low-mem linux-kernel users, you can get the patch from my homepage too. Rik. +-------------------------------------------------------------------+ | Linux memory management tour guide. H.H.vanRiel@phys.uu.nl | | Scouting Vries cubscout leader. http://www.phys.uu.nl/~riel/ | +-------------------------------------------------------------------+ -- This is a majordomo managed list. To unsubscribe, send a message with the body 'unsubscribe linux-mm me@address' to: majordomo@kvack.org