From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: [patch] real-time enhanced page allocator and throttling From: Robert Love In-Reply-To: <20030805174536.6cb5fbf0.akpm@osdl.org> References: <1060121638.4494.111.camel@localhost> <20030805170954.59385c78.akpm@osdl.org> <1060130368.4494.166.camel@localhost> <20030805174536.6cb5fbf0.akpm@osdl.org> Content-Type: text/plain Message-Id: <1060142290.4494.197.camel@localhost> Mime-Version: 1.0 Date: 05 Aug 2003 20:58:11 -0700 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: linux-kernel@vger.kernel.org, Valdis.Kletnieks@vt.edu, piggin@cyberone.com.au, kernel@kolivas.org, linux-mm@kvack.org List-ID: On Tue, 2003-08-05 at 17:45, Andrew Morton wrote: > It's testing time. Just via some instrumenting, I can see that a real-time task never begins throttling and this translates to a ~1ms reduction in worst case allocation on a fast machine latency under extreme page dirtying and writeback (basically, I cannot reproduce any variation in page allocation, now, for a real-time test app). So it works. But I do not have any real world test to confirm a benefit, which is what matters. Have you poked and prodded? Robert Love -- 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