Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262070AbTIHHfl (ORCPT ); Mon, 8 Sep 2003 03:35:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262072AbTIHHfl (ORCPT ); Mon, 8 Sep 2003 03:35:41 -0400 Received: from ns.virtualhost.dk ([195.184.98.160]:43741 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S262070AbTIHHfj (ORCPT ); Mon, 8 Sep 2003 03:35:39 -0400 Date: Mon, 8 Sep 2003 09:35:27 +0200 From: Jens Axboe To: mfedyk@matchmail.com Cc: markw@osdl.org, linux-kernel@vger.kernel.org Subject: Re: OSDL DBT-2 AS vs. Deadline 2.6.0-test4-mm3 Message-ID: <20030908073527.GF840@suse.de> References: <200309051828.h85IRxo16644@mail.osdl.org> <20030905201722.GC19041@matchmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030905201722.GC19041@matchmail.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2408 Lines: 43 On Fri, Sep 05 2003, Mike Fedyk wrote: > On Fri, Sep 05, 2003 at 11:27:56AM -0700, markw@osdl.org wrote: > > FUNCTIONS SORTED BY LOAD: > > -- ------------------------- ------- ------------------------- ------- > > # as 2.6.0-test4-mm3 ticks deadline 2.6.0-test4-mm3 ticks > > -- ------------------------- ------- ------------------------- ------- > > 1 default_idle 5746007 default_idle 5764451 > > 2 schedule 53609 schedule 52174 > > 3 scsi_request_fn 29340 > > do_softirq 25905 > > 4 __make_request 25949 scsi_request_fn 23549 > > 5 do_softirq 25560 __make_request 20325 > > 6 scsi_end_request 16524 try_to_wake_up 11723 > > 7 try_to_wake_up 11939 scsi_end_request 11340 > > 8 dio_bio_end_io 11253 dio_bio_end_io 10950 > > 9 do_anonymous_page 8234 do_anonymous_page 8110 > > 10 ipc_lock 7366 ipc_lock 6706 > > 11 sys_semtimedop 5493 sys_semtimedop 5152 > > 12 sysenter_past_esp 5080 sysenter_past_esp 5064 > > 13 direct_io_worker 5065 direct_io_worker 4732 > > 14 dio_await_one 4084 dio_await_one 3779 > > 15 __copy_to_user_ll 3643 __mod_timer 3571 > > 16 __mod_timer 3582 blk_run_queue 3521 > > 17 blk_run_queue 3411 __copy_to_user_ll 3495 > > 18 __might_sleep 3316 __might_sleep 3277 > > 19 kmem_cache_alloc 3225 kmem_cache_alloc 3054 > > 20 semctl_main 3072 semctl_main 3016 > > > > Looking at this quickly, scsi_request_fn, __make_request, and > scsi_end_request are show the most additional cost on AS. As well as > __copy_to_user_ll and ipc_lock. I think you forgot to include the interesting part of your email. -- Jens Axboe - 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/