Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 3 Apr 2001 21:53:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 3 Apr 2001 21:53:36 -0400 Received: from cy57850-a.rdondo1.ca.home.com ([24.5.132.106]:63500 "HELO firewall.philstone.com") by vger.kernel.org with SMTP id ; Tue, 3 Apr 2001 21:53:28 -0400 Date: Tue, 03 Apr 2001 18:50:22 -0700 From: Christopher Smith To: Fabio Riccardi Cc: linux-kernel@vger.kernel.org Subject: Re: a quest for a better scheduler Message-ID: <101220000.986349022@hellman> In-Reply-To: <3ACA7629.E8C54D13@chromium.com> X-Mailer: Mulberry/2.0.8 (Linux/x86 Demo) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --On Tuesday, April 03, 2001 18:17:30 -0700 Fabio Riccardi wrote: > Alan Cox wrote: > Indeed, I'm using RT sigio/sigwait event scheduling, bare clone threads > and zero-copy io. Fabio, I'm working on a similar solution, although I'm experimenting with SGI's KAIO patch to see what it can do. I've had to patch the kernel to implement POSIX style signal dispatch symantics (so that the thread which posted an I/O request doesn't have to be the one which catches the signal). Are you taking a similar approach, or is the lack of this behavior the reason you are using so many threads? --Chris - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/