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Message-ID: <5720DC8E.4020802@linux.vnet.ibm.com>
Date: Wed, 27 Apr 2016 21:06:46 +0530
From: Hemant Kumar <hemant@...ux.vnet.ibm.com>
To: Masami Hiramatsu <mhiramat@...nel.org>,
Arnaldo Carvalho de Melo <acme@...nel.org>
CC: linux-kernel@...r.kernel.org, Namhyung Kim <namhyung@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Ananth N Mavinakayanahalli <ananth@...ux.vnet.ibm.com>
Subject: Re: [PATCH perf/core v4 00/19] perf-probe --cache and SDT support
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/@...LDID 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/@...LDID 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
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