Messages in this thread | | | From | Shunsuke Nakamura <> | Subject | [PATCH 0/7] libperf: Add interface for overflow check of sampling events | Date | Fri, 22 Apr 2022 18:38:26 +0900 |
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This patch series adds interface for overflow check of sampling events to libperf.
First patch move 'open_flags' from tools/perf to evsel::open_flags.
Second patch introduce perf_{evsel, evlist}__open_opt() with extensible structure opts.
Third patch add support for overflow handling of sampling events.
Fourth patch adds a interface to check overflowed events.
Fifth patch adds a interface to perform IOC_REFRESH and IOC_PERIOD.
Sixth and seventh patch adds tests.
--- Previous version at: https://lore.kernel.org/linux-perf-users/20220325043829.224045-1-nakamura.shun@fujitsu.com/
Changes in v1: - Move initialization/reference of evsel->open_flags from the first patch to the second patch - Move signal-related handling and related fields of the opts structure from the second patch to the third patch - Move _GNU_SOURCE from test-evlist.c to Makefile - Delete *_cpu() function - Refactor the fourth patch - Fix test to use real-time signals instead of standard signals
Changes in RFC v2: - Delete perf_evsel__set_close_on_exec() function - Introduce perf_{evsel, evlist}__open_opt() with extensible structure opts - Fix perf_evsel__set_signal() to a internal function - Add bool type argument to perf_evsel__check_{fd, fd_cpu}() to indicate overflow results
Shunsuke Nakamura (7): libperf: Move 'open_flags' from tools/perf to evsel::open_flags libperf: Introduce perf_{evsel, evlist}__open_opt with extensible struct opts libperf: Add support for overflow handling of sampling events libperf: Add perf_evsel__has_fd() functions libperf: Add perf_evsel__{refresh, period}() functions libperf test: Add test_stat_overflow() libperf test: Add test_stat_overflow_event()
tools/lib/perf/Documentation/libperf.txt | 17 +++ tools/lib/perf/Makefile | 1 + tools/lib/perf/evlist.c | 20 +++ tools/lib/perf/evsel.c | 166 ++++++++++++++++++++++- tools/lib/perf/include/internal/evsel.h | 2 + tools/lib/perf/include/perf/evlist.h | 3 + tools/lib/perf/include/perf/evsel.h | 29 ++++ tools/lib/perf/internal.h | 44 ++++++ tools/lib/perf/libperf.map | 5 + tools/lib/perf/tests/test-evlist.c | 112 ++++++++++++++- tools/lib/perf/tests/test-evsel.c | 108 +++++++++++++++ tools/perf/util/evsel.c | 16 ++- tools/perf/util/evsel.h | 1 - 13 files changed, 508 insertions(+), 16 deletions(-)
-- 2.25.1
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