From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261921AbTDUVK2 (ORCPT ); Mon, 21 Apr 2003 17:10:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262000AbTDUVK2 (ORCPT ); Mon, 21 Apr 2003 17:10:28 -0400 Received: from e33.co.us.ibm.com ([32.97.110.131]:30671 "EHLO e33.co.us.ibm.com") by vger.kernel.org with ESMTP id S261921AbTDUVK1 (ORCPT ); Mon, 21 Apr 2003 17:10:27 -0400 Date: Mon, 21 Apr 2003 14:12:08 -0700 From: "Martin J. Bligh" To: Andrew Morton cc: linux-kernel Subject: 67-mjb2 vs 68-mjb1 (sdet degredation) Message-ID: <1425480000.1050959528@flay> 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 Seem to loose about 2-3% on SDET syncing with 2.5.68. Not much change apart from 67-68 changes. The merge of the ext2 alloc stuff has made such a dramatic improvment for virgin 67-68, it's hard to see if there was any degredation in mainline ;-) I had those in my tree before though, so there should be much less change. Just wondering if you can recognise / guess the problem from the profiles, else I'll poke at it some more (will probably just work out what's hitting .text.lock.filemap). diffprofile {2.5.67-mjb2,2.5.68-mjb1}/sdetbench/128/profile 1307 2.1% total 432 0.0% .text.lock.filemap 269 0.8% default_idle 148 19.4% find_get_page 99 165.0% grab_block 97 26.6% __down 85 146.6% __brelse 78 22.2% do_no_page 75 625.0% update_atime 62 5.6% __d_lookup 61 103.4% task_mem 42 25.5% __wake_up 39 52.7% __mark_inode_dirty 38 211.1% read_inode_bitmap 32 0.0% group_reserve_blocks 31 79.5% generic_fillattr ... -10 -6.0% kmap_atomic -11 -26.8% truncate_inode_pages -12 -26.1% ext2_free_blocks -12 -5.2% do_page_fault -13 -7.8% .text.lock.file_table -13 -11.1% proc_check_root -14 -19.7% dentry_open -17 -4.1% .text.lock.namei -17 -17.2% fget -18 -10.3% .text.lock.attr -21 -12.1% number -24 -4.3% .text.lock.dcache -27 -2.1% page_remove_rmap -34 -54.8% ext2_new_block -36 -3.4% atomic_dec_and_lock -37 -3.1% copy_page_range -57 -7.6% __copy_to_user_ll -105 -95.5% task_vsize -113 -96.6% find_trylock_page