Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262029AbUKDAgg (ORCPT ); Wed, 3 Nov 2004 19:36:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262018AbUKDAde (ORCPT ); Wed, 3 Nov 2004 19:33:34 -0500 Received: from smtp2.netcabo.pt ([212.113.174.29]:45367 "EHLO exch01smtp10.hdi.tvcabo") by vger.kernel.org with ESMTP id S261953AbUKDA34 (ORCPT ); Wed, 3 Nov 2004 19:29:56 -0500 Message-ID: <32813.192.168.1.8.1099527473.squirrel@192.168.1.8> Date: Thu, 4 Nov 2004 00:17:53 -0000 (WET) Subject: Re: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm2-V0.7.7 From: "Rui Nuno Capela" To: "Ingo Molnar" Cc: Mark_H_Johnson@raytheon.com, "Karsten Wiese" , "Bill Huey" , "Adam Heath" , "K.R. Foley" , linux-kernel@vger.kernel.org, "Florian Schmidt" , "Fernando Pablo Lopez-Lezcano" , "Lee Revell" , "Thomas Gleixner" , "Michal Schmidt" User-Agent: SquirrelMail/1.4.3a X-Mailer: SquirrelMail/1.4.3a MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-Priority: 3 (Normal) Importance: Normal References: In-Reply-To: X-OriginalArrivalTime: 04 Nov 2004 00:19:49.0801 (UTC) FILETIME=[FF5A3990:01C4C203] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1933 Lines: 46 Hi, Here goes my latest stats, now regarding under 2.6.10-rc1 and running jackd -R -r44100 -p64 -n2 with 8 loaded fluidsynth instances, on a P4 2.533GHz UP 512MB laptop. The main change from my previous posted results are that buffer/period size has been decreased from 128 to 64 frames, being now a bit/much more harnessing than before. 2.6.10-rc1 2.6.10-rc1-mm2 RT-V0.7.7 ---------- -------------- --------- XRUN Rate . . . . . . . . . : 687.6 832.0 45.6 /hour Delay Rate (>spare time) . : 1354.8 1517.3 43.2 /hour Delay Rate (>1000 usecs) . : 1146.0 1245.3 3.6 /hour Delay Maximum . . . . . . . : 4510 8786 1249 usecs Cycle Maximum . . . . . . . : 957 976 946 usecs Average DSP Load . . . . . : 51.4 51.9 55.2 % Average CPU System Load . . : 6.4 6.7 13.2 % Average CPU User Load . . . : 40.3 40.4 41.9 % Average CPU Nice Load . . . : 0.0 0.0 0.0 % Average CPU I/O Wait Load . : 0.0 0.1 0.1 % Average CPU IRQ Load . . . : 0.0 0.0 0.0 % Average CPU Soft-IRQ Load . : 0.0 0.0 0.0 % Average Interrupt Rate . . : 1673.7 1674.3 1675.4 /sec Average Context-Switch Rate : 10967.4 10967.9 13940.9 /sec As a first look, the -mm2 branch is performing quite badly, even though it has been configured with the PREEMPT_BKL option set. S/W versions are: jackd 0.99.10 fluidsynth 1.0.5 Cheers. -- rncbc aka Rui Nuno Capela rncbc@rncbc.org - 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/