From: Andi Kleen <ak@linux.intel.com>
To: David Carrillo-Cisneros <davidcc@google.com>
Cc: linux-kernel@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Simon Que <sque@chromium.org>, Wang Nan <wangnan0@huawei.com>,
Jiri Olsa <jolsa@kernel.org>, He Kuang <hekuang@huawei.com>,
Masami Hiramatsu <mhiramat@kernel.org>,
David Ahern <dsa@cumulusnetworks.com>,
Namhyung Kim <namhyung@kernel.org>,
Stephane Eranian <eranian@google.com>,
Paul Turner <pjt@google.com>
Subject: Re: [PATCH 0/7] perf tool: add meta-data header support for pipe-mode
Date: Wed, 17 May 2017 22:10:43 -0700 [thread overview]
Message-ID: <20170518051043.GA15563@tassilo.jf.intel.com> (raw)
In-Reply-To: <20170518041602.28689-1-davidcc@google.com>
> The difficulty in pipe mode is that information needs to be written
> sequentially to the pipe. Meta data headers are usually generated
> (and also expected) at the beginning of the file (or piped output).
> To solve this problem, we introduce new synthetic record types,
> one for each meta-data type. The approach is similar to what
> is *ALREADY* used for BUILD_ID and TRACING_DATA.
The new headers need documentation in Documentation/perf.data-file-format.txt
-Andi
next prev parent reply other threads:[~2017-05-18 5:10 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-18 4:15 [PATCH 0/7] perf tool: add meta-data header support for pipe-mode David Carrillo-Cisneros
2017-05-18 4:15 ` [PATCH 1/7] perf header: fail on write_padded error David Carrillo-Cisneros
2017-05-18 4:15 ` [PATCH 2/7] perf util: add const modifier to buf in "writen" function David Carrillo-Cisneros
2017-05-18 4:15 ` [PATCH 3/7] perf header: use struct feat_fd for write David Carrillo-Cisneros
2017-05-18 16:13 ` Jiri Olsa
2017-05-18 18:02 ` David Carrillo-Cisneros
2017-05-18 4:15 ` [PATCH 4/7] perf header: use struct feat_fd for print David Carrillo-Cisneros
2017-05-18 4:16 ` [PATCH 5/7] perf header: use struct feat_fd for process and read David Carrillo-Cisneros
2017-05-18 16:13 ` Jiri Olsa
2017-05-18 18:02 ` David Carrillo-Cisneros
2017-05-18 4:16 ` [PATCH 6/7] perf tool: make show-info in perf report a tool attribute David Carrillo-Cisneros
2017-05-18 4:16 ` [PATCH 7/7] perf tools: add feature header record to pipe-mode David Carrillo-Cisneros
2017-05-18 16:12 ` Jiri Olsa
2017-05-18 18:30 ` David Carrillo-Cisneros
2017-05-18 16:13 ` Jiri Olsa
2017-05-18 16:13 ` Jiri Olsa
2017-05-18 18:29 ` David Carrillo-Cisneros
2017-05-18 16:13 ` Jiri Olsa
2017-05-18 16:13 ` Jiri Olsa
2017-05-18 18:29 ` David Carrillo-Cisneros
2017-05-18 5:10 ` Andi Kleen [this message]
2017-05-18 18:02 ` [PATCH 0/7] perf tool: add meta-data header support for pipe-mode David Carrillo-Cisneros
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=20170518051043.GA15563@tassilo.jf.intel.com \
--to=ak@linux.intel.com \
--cc=acme@kernel.org \
--cc=alexander.shishkin@linux.intel.com \
--cc=davidcc@google.com \
--cc=dsa@cumulusnetworks.com \
--cc=eranian@google.com \
--cc=hekuang@huawei.com \
--cc=jolsa@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mhiramat@kernel.org \
--cc=mingo@redhat.com \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.org \
--cc=pjt@google.com \
--cc=sque@chromium.org \
--cc=wangnan0@huawei.com \
/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.