From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754229AbcETEwJ (ORCPT ); Fri, 20 May 2016 00:52:09 -0400 Received: from e23smtp06.au.ibm.com ([202.81.31.148]:38482 "EHLO e23smtp06.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750851AbcETEwH (ORCPT ); Fri, 20 May 2016 00:52:07 -0400 X-IBM-Helo: d23dlp01.au.ibm.com X-IBM-MailFrom: hemant@linux.vnet.ibm.com X-IBM-RcptTo: linux-kernel@vger.kernel.org Message-ID: <573E97BD.20405@linux.vnet.ibm.com> Date: Fri, 20 May 2016 10:21:09 +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 , Brendan Gregg Subject: Re: [PATCH perf/core v8 00/16] perf-probe --cache and SDT support References: <20160515031922.4017.13932.stgit@devbox> In-Reply-To: <20160515031922.4017.13932.stgit@devbox> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16052004-0021-0000-0000-000009B25499 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/15/2016 08:49 AM, Masami Hiramatsu wrote: > Hi, > > Here is the 8th version of the patchset for probe-cache and > initial SDT support. > > The previous version is here; https://lkml.org/lkml/2016/5/11/446 > > This version I droped the second patch in v7 because it may > involves unintended behavior change and we'd better discuss it > out of this series. I also added comments why we can't use > access(R_OK) for /proc/kcore. > > Hemant, could you review and test this series so that we can > proceed to your patch depending on this? So, apart from the two issues which I mentioned in the individual patches, it seems fine. However, I think we will need a bit detailed documentation for the probe cache feature as well as for the SDT support, given that we have different commands to add {probe,sdt} events for a binary and use them. I will write that that doc up based on your next version. > > Thank you, > > --- > > Hemant Kumar (1): > perf/sdt: ELF support for SDT > > Masami Hiramatsu (15): > perf buildid: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE > perf symbol: Cleanup the code flow of dso__find_kallsyms > perf-buildid-cache: Use path/to/bin/buildid/elf instead of path/to/bin/buildid > 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 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 > perf probe: Support a special SDT probe format > > > tools/perf/Documentation/perf-probe.txt | 26 +- > tools/perf/builtin-buildid-cache.c | 8 > tools/perf/builtin-list.c | 4 > tools/perf/builtin-probe.c | 30 ++ > tools/perf/util/annotate.c | 2 > tools/perf/util/build-id.c | 295 ++++++++++++++++-- > tools/perf/util/build-id.h | 8 > tools/perf/util/dso.h | 5 > tools/perf/util/machine.c | 2 > tools/perf/util/parse-events.c | 83 +++++ > tools/perf/util/parse-events.h | 2 > tools/perf/util/probe-event.c | 492 +++++++++++++++++++++++++++--- > tools/perf/util/probe-event.h | 7 > tools/perf/util/probe-file.c | 502 +++++++++++++++++++++++++++++++ > tools/perf/util/probe-file.h | 41 +++ > tools/perf/util/symbol-elf.c | 252 ++++++++++++++++ > tools/perf/util/symbol.c | 73 ++--- > tools/perf/util/symbol.h | 25 ++ > 18 files changed, 1719 insertions(+), 138 deletions(-) > > -- > Masami Hiramatsu > -- Thanks, Hemant Kumar