From: Andi Kleen <andi@firstfloor.org>
To: Stephane Eranian <eranian@google.com>
Cc: linux-kernel@vger.kernel.org, acme@redhat.com,
peterz@infradead.org, mingo@elte.hu, jolsa@redhat.com,
namhyung@kernel.org, kan.liang@intel.com, dsahern@gmail.com,
adrian.hunter@intel.com
Subject: Re: [PATCH v2 4/4] perf script: enable printing of branch stack
Date: Mon, 31 Aug 2015 10:08:01 -0700 [thread overview]
Message-ID: <874mjfxu6m.fsf@tassilo.jf.intel.com> (raw)
In-Reply-To: <20150831170535.GY4524@tassilo.jf.intel.com> (Andi Kleen's message of "Mon, 31 Aug 2015 10:05:35 -0700")
Andi Kleen <ak@linux.intel.com> writes:
>> $ perf script -F ip,brstack
>> 5d3000 0x401aa0/0x5d2000/M/-/-/-/0 ...
>>
>> $ perf script -F ip,brstacksym
>> 4011e0 noploop+0x0/noploop+0x0/P/-/-/0
>
> That's a weird format that's hard to parse with standard tools like
> awk, and also for humans. How about separating with spaces?
Also can you include the number of the LBR in the branch record?
That can be useful sometimes.
BTW I haven't checked, but it would be also good to make sure
the print order is the same as program order (perf stores
the LBRs reversed)
-Andi
--
ak@linux.intel.com -- Speaking for myself only
next prev parent reply other threads:[~2015-08-31 17:08 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-31 16:41 [PATCH v2 0/4] perf: improve script and record for iregs and brstack Stephane Eranian
2015-08-31 16:41 ` [PATCH v2 1/4] perf script: enable printing of interrupted machine state Stephane Eranian
2015-08-31 20:51 ` Arnaldo Carvalho de Melo
2015-09-01 8:31 ` [tip:perf/urgent] perf script: Enable " tip-bot for Stephane Eranian
2015-08-31 16:41 ` [PATCH v2 2/4] perf/x86: add list of register names Stephane Eranian
2015-09-01 8:31 ` [tip:perf/urgent] perf/x86: Add " tip-bot for Stephane Eranian
2015-08-31 16:41 ` [PATCH v2 3/4] perf record: add ability to name registers to record Stephane Eranian
2015-08-31 21:02 ` Arnaldo Carvalho de Melo
2015-09-01 8:32 ` [tip:perf/urgent] perf record: Add " tip-bot for Stephane Eranian
2015-08-31 16:41 ` [PATCH v2 4/4] perf script: enable printing of branch stack Stephane Eranian
2015-08-31 17:05 ` Andi Kleen
2015-08-31 17:08 ` Andi Kleen [this message]
2015-10-30 9:13 ` [tip:perf/core] perf script: Enable " tip-bot for Stephane Eranian
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=874mjfxu6m.fsf@tassilo.jf.intel.com \
--to=andi@firstfloor.org \
--cc=acme@redhat.com \
--cc=adrian.hunter@intel.com \
--cc=dsahern@gmail.com \
--cc=eranian@google.com \
--cc=jolsa@redhat.com \
--cc=kan.liang@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.