linux-kernel - [PATCH 00/12] perf top: Rework processing code

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Date:   Mon, 19 Nov 2018 13:20:04 +0100
From:   Jiri Olsa <jolsa@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        David Miller <davem@...emloft.net>
Subject: [PATCH 00/12] perf top: Rework processing code

hi,
David reported issues with perf top loosing side band events
so we moved mmap reading and hists processing into separated
threads.

This patchset also adds dropping sample logic when the processing
falls behind the reader thread. This way we get incomplete but
current data in perf top.

Also available in:
  git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
  perf/fixes

thanks,
jirka


---
David Miller (1):
      perf tools: Fix build on sparc

Jiri Olsa (11):
      perf tools: Rework show_progress for __ordered_events__flush
      perf tools: Add private data to struct ordered_events
      perf top: Save and display the lost count stats
      perf top: Moving lost events warning to helpline
      perf top: Add processing thread
      perf top: Use cond variable instead of the lock
      perf top: Set session_done when exiting
      perf top: Drop samples which are behind more than refresh rate
      perf top: Save and display the drop count stats
      perf top: Display slow reader warning for when droping samples
      perf top: Move perf_top__reset_sample_counters after counts display

 tools/perf/bench/epoll-ctl.c     |   7 +--
 tools/perf/bench/epoll-wait.c    |   6 ++-
 tools/perf/builtin-top.c         | 281 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------------------------------
 tools/perf/ui/browsers/hists.c   |  11 +++++
 tools/perf/util/ordered-events.c |  16 ++++---
 tools/perf/util/ordered-events.h |   5 ++-
 tools/perf/util/session.c        |   3 +-
 tools/perf/util/top.c            |   8 ++--
 tools/perf/util/top.h            |  10 ++++-
 9 files changed, 258 insertions(+), 89 deletions(-)