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https://github.com/torvalds/linux
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c171b552a7
Add a new option "--filter <filter_str>" to perf record, and
it should be right after "-e trace_point":
#./perf record -R -f -e irq:irq_handler_entry --filter irq==18
^C
# ./perf trace
perf-4303 ... irq_handler_entry: irq=18 handler=eth0
init-0 ... irq_handler_entry: irq=18 handler=eth0
init-0 ... irq_handler_entry: irq=18 handler=eth0
init-0 ... irq_handler_entry: irq=18 handler=eth0
init-0 ... irq_handler_entry: irq=18 handler=eth0
See Documentation/trace/events.txt for the syntax of filter
expressions.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <4AD6955F.90602@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
36 lines
850 B
C
36 lines
850 B
C
#ifndef __PERF_PARSE_EVENTS_H
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#define __PERF_PARSE_EVENTS_H
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/*
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* Parse symbolic events/counts passed in as options:
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*/
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struct option;
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struct tracepoint_path {
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char *system;
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char *name;
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struct tracepoint_path *next;
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};
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extern struct tracepoint_path *tracepoint_id_to_path(u64 config);
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extern int nr_counters;
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extern struct perf_event_attr attrs[MAX_COUNTERS];
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extern char *filters[MAX_COUNTERS];
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extern const char *event_name(int ctr);
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extern const char *__event_name(int type, u64 config);
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extern int parse_events(const struct option *opt, const char *str, int unset);
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extern int parse_filter(const struct option *opt, const char *str, int unset);
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#define EVENTS_HELP_MAX (128*1024)
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extern void print_events(void);
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extern char debugfs_path[];
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extern int valid_debugfs_mount(const char *debugfs);
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#endif /* __PERF_PARSE_EVENTS_H */
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