2011-11-28 17:30:20 +07:00
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#ifndef __PERF_TOOL_H
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#define __PERF_TOOL_H
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perf tools: Save some loops using perf_evlist__id2evsel
Since we already ask for PERF_SAMPLE_ID and use it to quickly find the
associated evsel, add handler func + data to struct perf_evsel to avoid
using chains of if(strcmp(event_name)) and also to avoid all the linear
list searches via trace_event_find.
To demonstrate the technique convert 'perf sched' to it:
# perf sched record sleep 5m
And then:
Performance counter stats for '/tmp/oldperf sched lat':
646.929438 task-clock # 0.999 CPUs utilized
9 context-switches # 0.000 M/sec
0 CPU-migrations # 0.000 M/sec
20,901 page-faults # 0.032 M/sec
1,290,144,450 cycles # 1.994 GHz
<not supported> stalled-cycles-frontend
<not supported> stalled-cycles-backend
1,606,158,439 instructions # 1.24 insns per cycle
339,088,395 branches # 524.151 M/sec
4,550,735 branch-misses # 1.34% of all branches
0.647524759 seconds time elapsed
Versus:
Performance counter stats for 'perf sched lat':
473.564691 task-clock # 0.999 CPUs utilized
9 context-switches # 0.000 M/sec
0 CPU-migrations # 0.000 M/sec
20,903 page-faults # 0.044 M/sec
944,367,984 cycles # 1.994 GHz
<not supported> stalled-cycles-frontend
<not supported> stalled-cycles-backend
1,442,385,571 instructions # 1.53 insns per cycle
308,383,106 branches # 651.195 M/sec
4,481,784 branch-misses # 1.45% of all branches
0.474215751 seconds time elapsed
[root@emilia ~]#
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-1kbzpl74lwi6lavpqke2u2p3@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-11-29 02:57:40 +07:00
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#include <stdbool.h>
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2015-04-09 22:53:43 +07:00
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#include <linux/types.h>
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2011-11-28 17:30:20 +07:00
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struct perf_session;
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perf tools: Save some loops using perf_evlist__id2evsel
Since we already ask for PERF_SAMPLE_ID and use it to quickly find the
associated evsel, add handler func + data to struct perf_evsel to avoid
using chains of if(strcmp(event_name)) and also to avoid all the linear
list searches via trace_event_find.
To demonstrate the technique convert 'perf sched' to it:
# perf sched record sleep 5m
And then:
Performance counter stats for '/tmp/oldperf sched lat':
646.929438 task-clock # 0.999 CPUs utilized
9 context-switches # 0.000 M/sec
0 CPU-migrations # 0.000 M/sec
20,901 page-faults # 0.032 M/sec
1,290,144,450 cycles # 1.994 GHz
<not supported> stalled-cycles-frontend
<not supported> stalled-cycles-backend
1,606,158,439 instructions # 1.24 insns per cycle
339,088,395 branches # 524.151 M/sec
4,550,735 branch-misses # 1.34% of all branches
0.647524759 seconds time elapsed
Versus:
Performance counter stats for 'perf sched lat':
473.564691 task-clock # 0.999 CPUs utilized
9 context-switches # 0.000 M/sec
0 CPU-migrations # 0.000 M/sec
20,903 page-faults # 0.044 M/sec
944,367,984 cycles # 1.994 GHz
<not supported> stalled-cycles-frontend
<not supported> stalled-cycles-backend
1,442,385,571 instructions # 1.53 insns per cycle
308,383,106 branches # 651.195 M/sec
4,481,784 branch-misses # 1.45% of all branches
0.474215751 seconds time elapsed
[root@emilia ~]#
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-1kbzpl74lwi6lavpqke2u2p3@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-11-29 02:57:40 +07:00
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union perf_event;
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struct perf_evlist;
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2011-11-28 17:30:20 +07:00
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struct perf_evsel;
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perf tools: Save some loops using perf_evlist__id2evsel
Since we already ask for PERF_SAMPLE_ID and use it to quickly find the
associated evsel, add handler func + data to struct perf_evsel to avoid
using chains of if(strcmp(event_name)) and also to avoid all the linear
list searches via trace_event_find.
To demonstrate the technique convert 'perf sched' to it:
# perf sched record sleep 5m
And then:
Performance counter stats for '/tmp/oldperf sched lat':
646.929438 task-clock # 0.999 CPUs utilized
9 context-switches # 0.000 M/sec
0 CPU-migrations # 0.000 M/sec
20,901 page-faults # 0.032 M/sec
1,290,144,450 cycles # 1.994 GHz
<not supported> stalled-cycles-frontend
<not supported> stalled-cycles-backend
1,606,158,439 instructions # 1.24 insns per cycle
339,088,395 branches # 524.151 M/sec
4,550,735 branch-misses # 1.34% of all branches
0.647524759 seconds time elapsed
Versus:
Performance counter stats for 'perf sched lat':
473.564691 task-clock # 0.999 CPUs utilized
9 context-switches # 0.000 M/sec
0 CPU-migrations # 0.000 M/sec
20,903 page-faults # 0.044 M/sec
944,367,984 cycles # 1.994 GHz
<not supported> stalled-cycles-frontend
<not supported> stalled-cycles-backend
1,442,385,571 instructions # 1.53 insns per cycle
308,383,106 branches # 651.195 M/sec
4,481,784 branch-misses # 1.45% of all branches
0.474215751 seconds time elapsed
[root@emilia ~]#
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-1kbzpl74lwi6lavpqke2u2p3@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-11-29 02:57:40 +07:00
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struct perf_sample;
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2011-11-28 17:30:20 +07:00
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struct perf_tool;
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struct machine;
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2015-03-03 22:37:54 +07:00
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struct ordered_events;
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2011-11-28 17:30:20 +07:00
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typedef int (*event_sample)(struct perf_tool *tool, union perf_event *event,
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struct perf_sample *sample,
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struct perf_evsel *evsel, struct machine *machine);
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typedef int (*event_op)(struct perf_tool *tool, union perf_event *event,
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struct perf_sample *sample, struct machine *machine);
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2013-07-04 20:20:21 +07:00
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typedef int (*event_attr_op)(struct perf_tool *tool,
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union perf_event *event,
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2011-11-28 17:30:20 +07:00
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struct perf_evlist **pevlist);
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typedef int (*event_op2)(struct perf_tool *tool, union perf_event *event,
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struct perf_session *session);
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2015-03-03 22:37:54 +07:00
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typedef int (*event_oe)(struct perf_tool *tool, union perf_event *event,
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struct ordered_events *oe);
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2015-04-09 22:53:43 +07:00
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typedef s64 (*event_op3)(struct perf_tool *tool, union perf_event *event,
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struct perf_session *session);
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2011-11-28 17:30:20 +07:00
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struct perf_tool {
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event_sample sample,
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read;
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event_op mmap,
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2013-08-21 17:10:25 +07:00
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mmap2,
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2011-11-28 17:30:20 +07:00
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comm,
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fork,
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exit,
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lost,
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2015-05-11 02:13:15 +07:00
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lost_samples,
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2015-04-30 21:37:29 +07:00
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aux,
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2015-04-30 21:37:30 +07:00
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itrace_start,
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2015-07-21 16:44:03 +07:00
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context_switch,
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2011-11-28 17:30:20 +07:00
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throttle,
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unthrottle;
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event_attr_op attr;
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2015-10-25 21:51:36 +07:00
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event_attr_op event_update;
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2013-07-04 20:20:21 +07:00
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event_op2 tracing_data;
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2015-03-03 22:37:54 +07:00
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event_oe finished_round;
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event_op2 build_id,
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2015-04-09 22:53:43 +07:00
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id_index,
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2015-04-09 22:53:47 +07:00
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auxtrace_info,
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2015-10-25 21:51:19 +07:00
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auxtrace_error,
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2015-10-25 21:51:23 +07:00
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thread_map,
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2015-10-25 21:51:27 +07:00
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cpu_map,
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2015-10-25 21:51:30 +07:00
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stat_config,
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2015-10-25 21:51:33 +07:00
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stat,
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stat_round;
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2015-04-09 22:53:43 +07:00
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event_op3 auxtrace;
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2014-07-06 19:18:21 +07:00
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bool ordered_events;
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2011-11-28 17:30:20 +07:00
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bool ordering_requires_timestamps;
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};
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#endif /* __PERF_TOOL_H */
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