Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753512AbbGSK4Y (ORCPT ); Sun, 19 Jul 2015 06:56:24 -0400 Received: from mail-pa0-f47.google.com ([209.85.220.47]:35753 "EHLO mail-pa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753229AbbGSK4X (ORCPT ); Sun, 19 Jul 2015 06:56:23 -0400 Date: Sun, 19 Jul 2015 19:53:59 +0900 From: Namhyung Kim To: Masami Hiramatsu Cc: Arnaldo Carvalho de Melo , Peter Zijlstra , linux-kernel@vger.kernel.org, Adrian Hunter , Ingo Molnar , Paul Mackerras , Jiri Olsa , Borislav Petkov , Hemant Kumar Subject: Re: [RFC PATCH perf/core v2 16/16] perf probe: Accept %sdt and %cached event name Message-ID: <20150719105359.GC25163@danjae.kornet> References: <20150715091352.8915.87480.stgit@localhost.localdomain> <20150715091544.8915.18843.stgit@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20150715091544.8915.18843.stgit@localhost.localdomain> User-Agent: Mutt/1.5.23+89 (0255b37be491) (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1439 Lines: 49 On Wed, Jul 15, 2015 at 06:15:44PM +0900, Masami Hiramatsu wrote: > To improbe usability, support %[PROVIDER:]SDTEVENT format to > add new probes on SDT and cached events. Ah, you meant we can skip the provider if the event name is unique.. > > e.g. > ---- > # perf probe -x /lib/libc-2.17.so %lll_lock_wait_private Maybe we can also skip the target path (-x) too in this case. Thanks, Namhyung > Added new event: > libc:lll_lock_wait_private (on %lll_lock_wait_private in > /usr/lib/libc-2.17.so) > > You can now use it in all perf tools, such as: > > perf record -e libc:lll_lock_wait_private -aR sleep 1 > > # perf probe -l | more > libc:lll_lock_wait_private (on __lll_lock_wait_private+21 > in /usr/lib/libc-2.17.so) > ---- > > Note that this is not only for SDT events, but also normal > events with event-name. > > e.g. define "myevent" on cache (-n doesn't add the real probe) > ---- > # perf probe -x ./perf --cache -n --add 'myevent=dso__load $params' > ---- > Reuse the "myevent" from cache as below. > ---- > # perf probe -x ./perf %myevent > ---- > > Signed-off-by: Masami Hiramatsu -- 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/