From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="iso-8859-1" From: Daniel Phillips Subject: Re: [PATCH] rmap 14 Date: Mon, 19 Aug 2002 21:50:33 +0200 References: In-Reply-To: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-Id: Sender: owner-linux-mm@kvack.org Return-Path: To: Mel , Scott Kaplan Cc: Bill Huey , Rik van Riel , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: On Saturday 17 August 2002 01:02, Mel wrote: > On Fri, 16 Aug 2002, Scott Kaplan wrote: > The measure is the time when the script asked the module to read a page. > The page is read by echoing to a mapanon_read proc entry. It's looking > like it takes about 350 microseconds to enter the module and perform the > read. I don't call schedule although it is possible I get scheduled. The only > way to be sure would be to collect all timing information within the module > which is perfectly possible. The only trouble is that if the module collects, > only one test instance can run at a time. It sounds like you want to try the linux trace toolkit: http://www.opersys.com/LTT/ -- Daniel -- 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/