Sender: Namhyung Kim <namhyung@gmail.com>
From:   Namhyung Kim <namhyung@kernel.org>
To:     Arnaldo Carvalho de Melo <acme@kernel.org>,
        Jiri Olsa <jolsa@kernel.org>,
        Adrian Hunter <adrian.hunter@intel.com>
Cc:     Ingo Molnar <mingo@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Ian Rogers <irogers@google.com>,
        linux-perf-users@vger.kernel.org, Leo Yan <leo.yan@linaro.org>,
        James Clark <james.clark@arm.com>,
        Stephane Eranian <eranian@google.com>
Subject: [PATCH 0/4] perf intel-pt: Fix the pipe mode (v1)
Date:   Thu, 26 Jan 2023 16:19:47 -0800
Message-Id: <20230127001951.3432374-1-namhyung@kernel.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Hello,

I found some problems in Intel-PT and auxtrace in general with pipe.
In the past it used to work with pipe, but recent code fails.  As it
also touches the generic code, other auxtrace users like ARM SPE will
be affected too.  I added a test case to verify it works with pipes.

At last, I can run this command without a problem.

  $ perf record -o- -e intel_pt// true | perf inject -b | perf report -i- --itrace=i1000

The code is available at 'perf/auxtrace-pipe-v1' branch in

  git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git

Thanks,
Namhyung

Namhyung Kim (4):
  perf inject: Use perf_data__read() for auxtrace
  perf intel-pt: Do not try to queue auxtrace data on pipe
  perf session: Avoid calling lseek(2) for pipe
  perf test: Add pipe mode test to the Intel PT test suite

 tools/perf/builtin-inject.c             |  6 +++---
 tools/perf/tests/shell/test_intel_pt.sh | 17 +++++++++++++++++
 tools/perf/util/auxtrace.c              |  3 +++
 tools/perf/util/session.c               |  9 +++++++--
 4 files changed, 30 insertions(+), 5 deletions(-)


base-commit: 5670ebf54bd26482f57a094c53bdc562c106e0a9
prerequisite-patch-id: 4ccdf9c974a3909075051f4ffe498faecab7567b
-- 
2.39.1.456.gfc5497dd1b-goog