From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 8 May 2002 11:35:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 8 May 2002 11:35:04 -0400 Received: from ua83d37hel.dial.kolumbus.fi ([62.248.234.83]:20299 "EHLO rankki.uworld.dyndns.org") by vger.kernel.org with ESMTP id ; Wed, 8 May 2002 11:35:04 -0400 Message-ID: <3CD94582.DE18AB99@kolumbus.fi> Date: Wed, 08 May 2002 18:34:26 +0300 From: Jussi Laako X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: Mike Kravetz CC: Robert Love , mingo@elte.hu, linux-kernel@vger.kernel.org Subject: Re: O(1) scheduler gives big boost to tbench 192 In-Reply-To: <20020507151356.A18701@w-mikek.des.beaverton.ibm.com> <20020507154322.F1537@w-mikek2.des.beaverton.ibm.com> <1020814775.2084.43.camel@bigsur> <20020507164857.G1537@w-mikek2.des.beaverton.ibm.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Mike Kravetz wrote: > > I'd really like to know if there are any real workloads that > benefited from this feature, rather than just some benchmark. Maybe this is the reason why O(1) scheduler has big latencies with pthread_cond_*() functions which original scheduler doesn't have? I think I tracked the problem down to try_to_wake_up(), but I was unable to fix it. - Jussi Laako -- PGP key fingerprint: 161D 6FED 6A92 39E2 EB5B 39DD A4DE 63EB C216 1E4B Available at PGP keyservers