Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758816AbZD1Kwa (ORCPT ); Tue, 28 Apr 2009 06:52:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756255AbZD1KwV (ORCPT ); Tue, 28 Apr 2009 06:52:21 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:55134 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1755759AbZD1KwU (ORCPT ); Tue, 28 Apr 2009 06:52:20 -0400 Message-ID: <49F6DFB5.2040901@cn.fujitsu.com> Date: Tue, 28 Apr 2009 18:51:33 +0800 From: Zhaolei User-Agent: Thunderbird 2.0.0.6 (Windows/20070728) MIME-Version: 1.0 To: Frederic Weisbecker , Steven Rostedt , Ingo Molnar , Tom Zanussi CC: KOSAKI Motohiro , Oleg Nesterov , LKML Subject: [PATCH 0/4] workqueue_trace: Add max execution time mesurement for per worklet Content-Type: text/plain; charset=GB2312 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1680 Lines: 40 Hi, This patch add max execution time mesurement for per worklet. It is useful for driver-developer and system administrator to know which worklet runs how many time. It need applied on top of patchset of: workqueue_tracepoint: Add worklet tracepoints for worklet lifecycle tracing Output is like: # CPU INSERTED EXECUTED M_EXECus TASKNAME:PID # | | | | `-WORKFUNC # | | | | | 0 905 973 events/0:5 0 1 1 37 |-reg_todo+0x0/0x41f 0 13 12 2033 |-rt_worker_func+0x0/0x219 0 49 48 3157 |-mce_work_fn+0x0/0x31 0 14 13 939 |-check_corruption+0x0/0x2a 0 707 706 3826 |-vmstat_update+0x0/0x33 0 1 1 1846 |-power_supply_changed_work+0x0/0x3c 0 11 11 2879 |-console_callback+0x0/0xe1 0 30 29 1579 |-do_cache_clean+0x0/0x37 0 74 74 2841 |-test_work+0x0/0x53 0 3 2 252 |-rekey_seq_generator+0x0/0x5a 0 1 1 21 |-grace_ender+0x0/0x14 0 1 1 3701 `-flush_to_ldisc+0x0/0x15d 0 0 0 cpuset:6 0 658 658 khelper:7 0 658 658 5735 `-__call_usermodehelper+0x0/0x77 0 0 0 netns:11 ... Thanks Zhaolei -- 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/