From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16899.63089.492768.89353@cargo.ozlabs.ibm.com> Date: Sat, 5 Feb 2005 09:25:53 +1100 From: Paul Mackerras Subject: Re: A scrub daemon (prezeroing) In-Reply-To: References: <1106828124.19262.45.camel@hades.cambridge.redhat.com> <20050202153256.GA19615@logos.cnet> <20050202163110.GB23132@logos.cnet> <16898.46622.108835.631425@cargo.ozlabs.ibm.com> <16899.2175.599702.827882@cargo.ozlabs.ibm.com> <16899.15980.791820.132469@cargo.ozlabs.ibm.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: Rik van Riel , Marcelo Tosatti , David Woodhouse , linux-mm@kvack.org, linux-kernel@vger.kernel.org, akpm@osdl.org List-ID: Christoph Lameter writes: > scrubd clears pages of orders 7-4 by default. That means 2^4 to 2^7 > pages are cleared at once. So are you saying that clearing an order 4 page will take measurably less time than clearing 16 order 0 pages? I find that hard to believe. Paul. -- 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/ . Don't email: aart@kvack.org