Messages in this thread | | | Subject | [PATCH v2 0/3] perf: add support for analyzing events for containers | From | Hari Bathini <> | Date | Thu, 24 Nov 2016 20:14:02 +0530 |
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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.
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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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