From 4f8ae962f0f71c682f97be5a9491694f9fbd814a Mon Sep 17 00:00:00 2001 From: Yang Jihong Date: Sat, 9 Jul 2022 09:50:18 +0800 Subject: [PATCH] perf kwork: Add irq kwork record support Record interrupt events irq:irq_handler_entry & irq_handler_exit Test cases: # perf kwork record -o perf_kwork.date -- sleep 1 [ perf record: Woken up 0 times to write data ] [ perf record: Captured and wrote 0.556 MB perf_kwork.date ] # # perf evlist -i perf_kwork.date irq:irq_handler_entry irq:irq_handler_exit dummy:HG # Tip: use 'perf evlist --trace-fields' to show fields for tracepoint events # Signed-off-by: Yang Jihong Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Ingo Molnar Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: Paul Clarke Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20220709015033.38326-3-yangjihong1@huawei.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/perf-kwork.txt | 2 +- tools/perf/builtin-kwork.c | 15 ++++++++++++++- tools/perf/util/kwork.h | 1 + 3 files changed, 16 insertions(+), 2 deletions(-) diff --git a/tools/perf/Documentation/perf-kwork.txt b/tools/perf/Documentation/perf-kwork.txt index dc1e36da57bb..57bd5fa7d5c9 100644 --- a/tools/perf/Documentation/perf-kwork.txt +++ b/tools/perf/Documentation/perf-kwork.txt @@ -32,7 +32,7 @@ OPTIONS -k:: --kwork:: - List of kwork to profile + List of kwork to profile (irq, etc) -v:: --verbose:: diff --git a/tools/perf/builtin-kwork.c b/tools/perf/builtin-kwork.c index 3e8d5fa47674..2cff7d1fff20 100644 --- a/tools/perf/builtin-kwork.c +++ b/tools/perf/builtin-kwork.c @@ -25,7 +25,20 @@ #include #include +const struct evsel_str_handler irq_tp_handlers[] = { + { "irq:irq_handler_entry", NULL, }, + { "irq:irq_handler_exit", NULL, }, +}; + +static struct kwork_class kwork_irq = { + .name = "irq", + .type = KWORK_CLASS_IRQ, + .nr_tracepoints = 2, + .tp_handlers = irq_tp_handlers, +}; + static struct kwork_class *kwork_class_supported_list[KWORK_CLASS_MAX] = { + [KWORK_CLASS_IRQ] = &kwork_irq, }; static void setup_event_list(struct perf_kwork *kwork, @@ -133,7 +146,7 @@ int cmd_kwork(int argc, const char **argv) OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, "dump raw trace in ASCII"), OPT_STRING('k', "kwork", &kwork.event_list_str, "kwork", - "list of kwork to profile"), + "list of kwork to profile (irq, etc)"), OPT_BOOLEAN('f', "force", &kwork.force, "don't complain, do it"), OPT_END() }; diff --git a/tools/perf/util/kwork.h b/tools/perf/util/kwork.h index 6950636aab2a..f1d89cb058fc 100644 --- a/tools/perf/util/kwork.h +++ b/tools/perf/util/kwork.h @@ -13,6 +13,7 @@ #include enum kwork_class_type { + KWORK_CLASS_IRQ, KWORK_CLASS_MAX, }; -- 2.11.0