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    Subject[PATCH v2 0/3] perf: add support for analyzing events for containers
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    Currently, there is no trivial mechanism to analyze events based on
    containers. perf -G can be used, but it will not filter events for the
    containers created after perf is invoked, making it difficult to assess/
    analyze performance issues of multiple containers at once.

    This patch-set overcomes this limitation by using cgroup identifier as
    container unique identifier. A new PERF_RECORD_NAMESPACES event that
    records namespaces related info is introduced, from which the cgroup
    namespace's inode number is used as cgroup identifier. This is based
    on the assumption that each container is created with it's own cgroup
    namespace allowing assessment/analysis of multiple containers using
    cgroup identifier.

    The first patch introduces PERF_RECORD_NAMESPACES in kernel while the
    second patch makes the corresponding changes in perf tool to read this
    PERF_RECORD_NAMESPACES events. The third patch adds a cgroup identifier
    column in perf report, which is nothing but the cgroup namespace's
    inode number.

    ---

    Hari Bathini (3):
    perf: add PERF_RECORD_NAMESPACES to include namespaces related info
    perf tool: add PERF_RECORD_NAMESPACES to include namespaces related info
    perf tool: add cgroup identifier entry in perf report


    include/linux/perf_event.h | 1
    include/uapi/linux/perf_event.h | 28 ++++++-
    kernel/events/core.c | 138 +++++++++++++++++++++++++++++++++
    kernel/fork.c | 3 +
    kernel/nsproxy.c | 5 +
    tools/include/uapi/linux/perf_event.h | 28 ++++++-
    tools/perf/builtin-annotate.c | 1
    tools/perf/builtin-diff.c | 1
    tools/perf/builtin-inject.c | 14 +++
    tools/perf/builtin-kmem.c | 1
    tools/perf/builtin-kvm.c | 2
    tools/perf/builtin-lock.c | 1
    tools/perf/builtin-mem.c | 1
    tools/perf/builtin-record.c | 30 ++++++-
    tools/perf/builtin-report.c | 1
    tools/perf/builtin-sched.c | 1
    tools/perf/builtin-script.c | 41 ++++++++++
    tools/perf/builtin-trace.c | 3 -
    tools/perf/perf.h | 1
    tools/perf/util/Build | 1
    tools/perf/util/data-convert-bt.c | 2
    tools/perf/util/event.c | 126 +++++++++++++++++++++++++++++-
    tools/perf/util/event.h | 20 +++++
    tools/perf/util/evsel.c | 3 +
    tools/perf/util/hist.c | 4 +
    tools/perf/util/hist.h | 1
    tools/perf/util/machine.c | 24 ++++++
    tools/perf/util/machine.h | 3 +
    tools/perf/util/namespaces.c | 28 +++++++
    tools/perf/util/namespaces.h | 19 +++++
    tools/perf/util/session.c | 7 ++
    tools/perf/util/sort.c | 22 +++++
    tools/perf/util/sort.h | 2
    tools/perf/util/thread.c | 44 ++++++++++-
    tools/perf/util/thread.h | 7 ++
    tools/perf/util/tool.h | 1
    36 files changed, 600 insertions(+), 15 deletions(-)
    create mode 100644 tools/perf/util/namespaces.c
    create mode 100644 tools/perf/util/namespaces.h

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