Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753587AbcD0PhL (ORCPT ); Wed, 27 Apr 2016 11:37:11 -0400 Received: from e28smtp02.in.ibm.com ([125.16.236.2]:33021 "EHLO e28smtp02.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753087AbcD0PhE (ORCPT ); Wed, 27 Apr 2016 11:37:04 -0400 X-IBM-Helo: d28relay02.in.ibm.com X-IBM-MailFrom: hemant@linux.vnet.ibm.com X-IBM-RcptTo: linux-kernel@vger.kernel.org Message-ID: <5720DC8E.4020802@linux.vnet.ibm.com> Date: Wed, 27 Apr 2016 21:06:46 +0530 From: Hemant Kumar User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: Masami Hiramatsu , Arnaldo Carvalho de Melo CC: linux-kernel@vger.kernel.org, Namhyung Kim , Peter Zijlstra , Ingo Molnar , Ananth N Mavinakayanahalli Subject: Re: [PATCH perf/core v4 00/19] perf-probe --cache and SDT support References: <20160426090200.11891.43944.stgit@devbox> In-Reply-To: <20160426090200.11891.43944.stgit@devbox> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-MML: disable x-cbid: 16042715-0005-0000-0000-00000C4A4DCC Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3754 Lines: 93 Hi Masami, On 04/26/2016 02:32 PM, Masami Hiramatsu wrote: > Hi, > > Here is the 4th version of the patchset for probe-cache and > initial SDT support which are going to be perf-cache finally. Applied your patches and tested them. I have a few questions/ suggestions on some of the patches. > The previous version is here; https://lkml.org/lkml/2015/8/15/52 > > This version fixes some bugs and improve wildcard support ( > including automatic target binary selection, we don't need > -x option for SDT/pre-cached events any more :) ), > and drops perf-record support currently because it seems more > work on cleanup side. > > BTW, since I couldn't find list_dir function in Arnaldo's mail, > so this series still have a patch to add lsdir(). > > Note that all SDT events have "sdt_" prefix on the provider name, > because of easier to distinguish between other named caches. > > TODOs: > - (perf record) Support SDT event recording directly > - (perf record) Support @FILE/@BUILDID suffix to record specific SDTs. > - (perf record) Try to unregister SDT events after record. > - (ftrace) Support multiple SDTs on single event. > > Done: > - (perf probe) Allow glob matching for pre-cached events. > - (perf probe) Removes -x option when using pre-cached events. > - (perf probe) Support @FILE/@BUILDID suffix for pre-cached events. > - (perf buildid-cache) Fallback to old style buildid-cache. > > Thank you, > > > --- > > Hemant Kumar (1): > perf/sdt: ELF support for SDT > > Masami Hiramatsu (18): > perf probe: Use strbuf for making strings > perf-buildid-cache: Use path/to/bin/buildid/elf instead of path/to/bin/buildid > perf buildid-cache: Fall back to the old style build-id cache > perf: Add lsdir to read a directory > perf-buildid-cache: Use lsdir for looking up buildid caches > perf-probe: Let probe_file__add_event return 0 if succeeded > perf probe: Add --cache option to cache the probe definitions > perf probe: Use cache entry if possible > perf probe: Show all cached probes > perf probe: Remove caches when --cache is given > perf probe: Add group name support > perf-probe: Set default kprobe group name if it is not given > perf buildid-cache: Scan and import user SDT events to probe cache > perf probe: Accept %sdt and %cached event name > perf-list: Show SDT and pre-cached events > perf-list: Skip SDTs placed in invalid binaries > perf probe: Allow wildcard for cached events > perf probe: Support @BUILDID or @FILE suffix for SDT events > > > tools/perf/Documentation/perf-probe.txt | 24 + > tools/perf/builtin-list.c | 4 > tools/perf/builtin-probe.c | 30 + > tools/perf/util/build-id.c | 278 ++++++++++-- > tools/perf/util/build-id.h | 6 > tools/perf/util/dso.h | 5 > tools/perf/util/parse-events.c | 83 ++++ > tools/perf/util/parse-events.h | 2 > tools/perf/util/probe-event.c | 692 ++++++++++++++++++++++--------- > tools/perf/util/probe-event.h | 9 > tools/perf/util/probe-file.c | 495 ++++++++++++++++++++++ > tools/perf/util/probe-file.h | 32 + > tools/perf/util/probe-finder.c | 14 - > tools/perf/util/symbol-elf.c | 252 +++++++++++ > tools/perf/util/symbol.c | 15 - > tools/perf/util/symbol.h | 22 + > tools/perf/util/util.c | 34 ++ > tools/perf/util/util.h | 4 > 18 files changed, 1725 insertions(+), 276 deletions(-) > > -- > Masami Hiramatsu > -- Thanks, Hemant Kumar