From: Arnaldo Carvalho de Melo <acme@redhat.com>
To: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>,
Namhyung Kim <namhyung@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
Peter Zijlstra <peterz@infradead.org>,
oleg@redhat.com, hegdevasant@linux.vnet.ibm.com,
mingo@redhat.com, anton@redhat.com,
systemtap@sourceware.org, aravinda@linux.vnet.ibm.com,
penberg@iki.fi, acme@kernel.org
Subject: Re: Re: Re: Re: [PATCH v4 5/5] perf/sdt: Add support to perf record to trace SDT events
Date: Wed, 05 Nov 2014 13:28:00 -0000 [thread overview]
Message-ID: <20141105132817.GE2487@redhat.com> (raw)
In-Reply-To: <5459E8BC.8030500@hitachi.com>
Em Wed, Nov 05, 2014 at 06:07:08PM +0900, Masami Hiramatsu escreveu:
> (2014/11/05 15:50), Hemant Kumar wrote:
> >> And also, user interface is a discussion point. This series defines new
> >> sdt-cache command, and we already have buildid-cache command. We should
> >> have probe-cache command too? or consolidate those cache managing
> >> commands?
> >> This question should be involving your series too.
> > I think, we need not have multiple sub-commands to manage the cache. We
> > can consolidate the cache management of probe events (including SDT
> > events) to a single command.
> Agreed. maybe perf-cache --buildid/--sdt/--probe would be good.
We have it already, its called 'perf buildid-cache':
[root@zoo ~]# perf buildid-cache --hell
Error: unknown option `hell'
usage: perf buildid-cache [<options>]
-a, --add <file list>
file(s) to add
-k, --kcore <file> kcore file to add
-r, --remove <file list>
file(s) to remove
-M, --missing <file> to find missing build ids in the cache
-f, --force don't complain, do it
-u, --update <file list>
file(s) to update
-v, --verbose be more verbose
[root@zoo ~]#
We can rename it at some point to 'perf cache', perhaps.
'perf cache --buildid' makes no sense, everything is keyed by build-id
(hence the name, which is albeit long, admit), I guess what you meant
was 'elf'.
It currently stores content of the form:
- ELF
- kcore (which is also ELF, but has no pathname)
- kallsyms
We would be adding other types of content, from this discussion:
- sdt
- [ku]probes (built from some other content, like ELF or kallsyms)
- Arnaldo
next prev parent reply other threads:[~2014-11-05 13:28 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-02 12:40 [PATCH v4 0/5] perf/sdt: SDT events listing/probing Hemant Kumar
2014-11-02 12:41 ` [PATCH v4 1/5] perf/sdt: ELF support for SDT Hemant Kumar
2014-11-02 12:42 ` [PATCH v4 4/5] perf/sdt: Delete SDT events from cache Hemant Kumar
2014-11-02 12:42 ` [PATCH v4 3/5] perf/sdt: Show SDT cache contents Hemant Kumar
2014-11-02 12:42 ` [PATCH v4 2/5] perf/sdt: Add SDT events into a cache Hemant Kumar
2014-11-02 12:43 ` [PATCH v4 5/5] perf/sdt: Add support to perf record to trace SDT events Hemant Kumar
2014-11-04 7:38 ` Namhyung Kim
2014-11-04 8:06 ` Hemant Kumar
2014-11-04 12:57 ` Masami Hiramatsu
[not found] ` <5459BD3E.7010804@linux.vnet.ibm.com>
2014-11-05 6:51 ` Hemant Kumar
2014-11-05 9:07 ` Masami Hiramatsu
2014-11-05 13:28 ` Arnaldo Carvalho de Melo [this message]
2014-11-05 7:06 ` Namhyung Kim
2014-11-05 9:05 ` Masami Hiramatsu
2014-11-06 2:16 ` Josh Stone
2014-11-06 5:34 ` Masami Hiramatsu
2014-11-06 7:06 ` Hemant Kumar
2014-11-06 14:56 ` Masami Hiramatsu
2014-11-07 8:21 ` [RFC] perf-cache command interface design Masami Hiramatsu
2014-11-07 8:42 ` Peter Zijlstra
2014-11-07 13:58 ` [PATCH RESEND 1/2] perf tools: Move disable_buildid_cache() to util/build-id.c Namhyung Kim
2014-11-07 13:58 ` [PATCH 2/2] perf tools: Add record.use-buildid-cache config option Namhyung Kim
2014-11-07 15:16 ` [RFC] perf-cache command interface design David Ahern
2014-11-07 15:33 ` Arnaldo Carvalho de Melo
2014-11-07 10:51 ` Hemant Kumar
2014-11-08 4:15 ` Masami Hiramatsu
2014-11-07 14:38 ` Arnaldo Carvalho de Melo
2014-11-08 4:26 ` Masami Hiramatsu
2014-11-07 14:43 ` Namhyung Kim
2014-11-08 4:38 ` Masami Hiramatsu
2014-11-10 10:59 ` Masami Hiramatsu
2014-11-10 12:23 ` Arnaldo Carvalho de Melo
2014-11-11 6:53 ` Masami Hiramatsu
2014-11-11 13:10 ` Arnaldo Carvalho de Melo
2014-11-12 15:26 ` Masami Hiramatsu
2014-11-17 3:09 ` Namhyung Kim
2014-11-17 3:17 ` Masami Hiramatsu
2014-11-17 22:09 ` Masami Hiramatsu
2014-11-18 4:51 ` Namhyung Kim
2014-11-18 11:16 ` Masami Hiramatsu
2014-11-18 4:41 ` Namhyung Kim
2014-11-18 10:32 ` Masami Hiramatsu
2014-11-17 18:59 ` Arnaldo Carvalho de Melo
2014-11-18 4:46 ` Namhyung Kim
2014-11-10 12:05 ` Hagen Paul Pfeifer
2014-11-10 12:31 ` Arnaldo Carvalho de Melo
2014-11-10 12:50 ` Peter Zijlstra
2014-11-10 13:37 ` Hagen Paul Pfeifer
2014-11-05 18:24 ` [PATCH v4 5/5] perf/sdt: Add support to perf record to trace SDT events Hemant Kumar
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