diff options
| -rw-r--r-- | tools/perf/Documentation/perf-trace.txt | 9 | ||||
| -rw-r--r-- | tools/perf/builtin-trace.c | 10 |
2 files changed, 19 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt index fc6e43262c41..25b74fdb36fa 100644 --- a/tools/perf/Documentation/perf-trace.txt +++ b/tools/perf/Documentation/perf-trace.txt @@ -176,6 +176,15 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs. only at exit time or when a syscall is interrupted, i.e. in those cases this option is equivalent to the number of lines printed. +--switch-on EVENT_NAME:: + Only consider events after this event is found. + +--switch-off EVENT_NAME:: + Stop considering events after this event is found. + +--show-on-off-events:: + Show the --switch-on/off events too. + --max-stack:: Set the stack depth limit when parsing the callchain, anything beyond the specified depth will be ignored. Note that at this point diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index d553d06a9aeb..bc44ed29e05a 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -27,6 +27,7 @@ #include "util/env.h" #include "util/event.h" #include "util/evlist.h" +#include "util/evswitch.h" #include <subcmd/exec-cmd.h> #include "util/machine.h" #include "util/map.h" @@ -106,6 +107,7 @@ struct trace { unsigned long nr_events; unsigned long nr_events_printed; unsigned long max_events; + struct evswitch evswitch; struct strlist *ev_qualifier; struct { size_t nr; @@ -2680,6 +2682,9 @@ static void trace__handle_event(struct trace *trace, union perf_event *event, st return; } + if (evswitch__discard(&trace->evswitch, evsel)) + return; + trace__set_base_time(trace, evsel, sample); if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT && @@ -4157,6 +4162,7 @@ int cmd_trace(int argc, const char **argv) OPT_UINTEGER('D', "delay", &trace.opts.initial_delay, "ms to wait before starting measurement after program " "start"), + OPTS_EVSWITCH(&trace.evswitch), OPT_END() }; bool __maybe_unused max_stack_user_set = true; @@ -4380,6 +4386,10 @@ init_augmented_syscall_tp: } } + err = evswitch__init(&trace.evswitch, trace.evlist, stderr); + if (err) + goto out_close; + err = target__validate(&trace.opts.target); if (err) { target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |