From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263189AbVGOEBx (ORCPT ); Fri, 15 Jul 2005 00:01:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263190AbVGOEBx (ORCPT ); Fri, 15 Jul 2005 00:01:53 -0400 Received: from mail09.syd.optusnet.com.au ([211.29.132.190]:29569 "EHLO mail09.syd.optusnet.com.au") by vger.kernel.org with ESMTP id S263189AbVGOEBw (ORCPT ); Fri, 15 Jul 2005 00:01:52 -0400 From: Con Kolivas To: linux kernel mailing list Subject: [ANNOUNCE] Interbench v0.21 Date: Fri, 15 Jul 2005 14:01:47 +1000 User-Agent: KMail/1.8.1 Cc: ck list MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart4619361.INqqX5YF38"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200507151401.49854.kernel@kolivas.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --nextPart4619361.INqqX5YF38 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Interbech is a an application is designed to benchmark interactivity in Lin= ux. Version 0.21 update http://ck.kolivas.org/apps/interbench/interbench-0.21.tar.bz2 Changes: Changed the design to run the benchmarked and background loads as separate= =20 processes that spawn their own threads instead of everything running as a=20 thread of the same process. This was suggested to me originally by Ingo=20 Molnar who noticed significant slowdown due to conflict over ->mm->mmap_sem= ,=20 invalidating the benchmark results when run in real time mode. This makes a= =20 large difference to the latencies measured under mem_load particularly when= =20 running real time benchmarks on a RT-PREEMPT kernel. Accounting changes to max_latency to only measure the largest latency of a= =20 single scheduling frame - this makes max_latency much smaller (and probably= =20 more realistic). Often you may see max latency exactly one frame wide now=20 (consistent with one dropped frame) such as 16.7ms on video. Minor cleanups. Cheers, Con --nextPart4619361.INqqX5YF38 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQBC1zUtZUg7+tp6mRURAnGzAJ4+qzBVkILu7t0dZ8QI4luhjUIFmgCfRDEq nltEtGdwujn1eNZtFTyR71c= =Ybep -----END PGP SIGNATURE----- --nextPart4619361.INqqX5YF38--