From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3FB18A69.6020104@cyberone.com.au> Date: Wed, 12 Nov 2003 12:18:33 +1100 From: Nick Piggin MIME-Version: 1.0 Subject: Re: 2.6.0-test9-mm2 References: <20031104225544.0773904f.akpm@osdl.org> <3FB11B93.60701@reactivated.net> In-Reply-To: <3FB11B93.60701@reactivated.net> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Daniel Drake Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: Daniel Drake wrote: > I've been getting a couple of audio skips with 2.6.0-test9-mm2. > Haven't heard a skip since test4 or so, so I'm assuming this is a > result of the IO scheduler tweaks. > > Here's how I can produce a skip: > Running X, general usage (e.g. couple of xterms, an emacs, maybe a > mozilla-thunderbird) > I switch to the first virtual console with Ctrl+Alt+F1. I then switch > back to X with Alt+F7. As X is redrawing the screen, the audio skips > once. > This happens most of the time, but its easier to reproduce when i am > compiling something, and also when I cycle through the virtual > consoles before switching back to X. Unlikely to be an IO scheduler change. Switching from X to console or back can cause high CPU scheduling latencies. I haven't tried to discover why. -- 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