Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262361AbTHYXVc (ORCPT ); Mon, 25 Aug 2003 19:21:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262309AbTHYXVc (ORCPT ); Mon, 25 Aug 2003 19:21:32 -0400 Received: from e1.ny.us.ibm.com ([32.97.182.101]:14062 "EHLO e1.ny.us.ibm.com") by vger.kernel.org with ESMTP id S262361AbTHYXVa (ORCPT ); Mon, 25 Aug 2003 19:21:30 -0400 Date: Mon, 25 Aug 2003 16:10:42 -0700 From: "Martin J. Bligh" To: Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: 2.6.0-test4-mm1 Message-ID: <30190000.1061853042@flay> In-Reply-To: <20030824171318.4acf1182.akpm@osdl.org> References: <20030824171318.4acf1182.akpm@osdl.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 Content-Length: 1969 Lines: 51 System time is still rather higher in kernbench, though maybe the elapsed time isn't degraded so much any more. Not sure if this is scheduler changes or not, but last time, we isolated a change of exactly this magnitude to one of those patches (Ingo's IIRC). I tried "set TIMESLICE_GRANULARITY to MAX_TIMESLICE in sched.c" as requested, makes no difference really (-max result below). Kernbench: (make -j vmlinux, maximal tasks) Elapsed System User CPU 2.6.0-test4 45.87 116.92 571.10 1499.00 2.6.0-test4-mm1 46.29 121.39 570.52 1494.75 2.6.0-test4-mm1-max 46.00 122.18 570.73 1505.75 diffprofile: 7763 4.8% total 2921 6.4% default_idle 949 0.0% direct_strnlen_user 719 20.6% __copy_from_user_ll 554 10.4% __copy_to_user_ll 544 33.5% kmem_cache_free 425 0.0% kpmd_ctor 372 26.1% schedule 349 18.7% atomic_dec_and_lock 322 4.1% __d_lookup 318 8.6% find_get_page 283 165.5% may_open 279 1.2% page_remove_rmap 275 16.0% buffered_rmqueue 263 42.4% __wake_up 212 15.3% free_hot_cold_page 119 6.4% path_lookup 117 3.7% zap_pte_range 114 0.0% direct_strncpy_from_user 107 17.3% generic_file_open ... -102 -1.6% page_add_rmap -122 -100.0% strncpy_from_user -288 -79.8% dentry_open -305 -66.2% do_page_cache_readahead -353 -100.0% pgd_ctor -447 -80.4% file_ra_state_init -558 -74.9% filp_close -854 -100.0% strnlen_user - 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/