From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269797AbUH0BEb (ORCPT ); Thu, 26 Aug 2004 21:04:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269863AbUH0BBF (ORCPT ); Thu, 26 Aug 2004 21:01:05 -0400 Received: from e4.ny.us.ibm.com ([32.97.182.104]:6047 "EHLO e4.ny.us.ibm.com") by vger.kernel.org with ESMTP id S269797AbUH0Awy (ORCPT ); Thu, 26 Aug 2004 20:52:54 -0400 Date: Thu, 26 Aug 2004 17:51:35 -0700 From: "Martin J. Bligh" To: Con Kolivas , Nuno Silva cc: "Rafael J. Wysocki" , Andrew Morton , linux-kernel@vger.kernel.org, Rick Lindsley Subject: Re: 2.6.9-rc1-mm1 Message-ID: <93300000.1093567895@flay> In-Reply-To: <412E8475.5000505@kolivas.org> References: <20040826014745.225d7a2c.akpm@osdl.org> <412DC47B.4000704@kolivas.org> <200408261636.06857.rjw@sisk.pl> <412E11ED.7040300@kolivas.org> <52540000.1093553736@flay> <412E7004.3070503@kolivas.org> <412E824F.90704@vgertech.com> <412E8475.5000505@kolivas.org> X-Mailer: Mulberry/2.1.2 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --On Friday, August 27, 2004 10:46:45 +1000 Con Kolivas wrote: > Nuno Silva wrote: >> Con Kolivas wrote: >>> If you're talking about using the embedded image viewer in kde, that >>> spins on wait and wastes truckloads of cpu (a perfect example of poor >>> coding). Try loading it an external viewer and it will be 1000 times >>> faster. If you're talking about it keeping the disk too busy on the >>> other hand, that's I/O scheduling. >>> >> >> The question is: "can a poorly coded app hang the system for 30secs?" >> >> That's a DoS ;-) > > It does not hang the system, only it's dependant tasks (ie other kde thingies) the display app (not KDE), however, at least seems to deny X of enough time that the mouse cursor won't move. Much badness! ;-) M.