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perf-report: Add bare minimum PERF_EVENT_READ parsing 

Provide the basic infrastructure to provide per task stats.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
hifive-unleashed-5.1
Peter Zijlstra 2009-06-24 22:46:04 +02:00 committed by Ingo Molnar
parent 649c48a9e7
commit e9ea2fde7a
1 changed files with 24 additions and 0 deletions
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24
tools/perf/builtin-report.c
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@ -100,6 +100,13 @@ struct lost_event {
u64 lost;
};
struct read_event {
struct perf_event_header header;
u32 pid,tid;
u64 value;
u64 format[3];
};
typedef union event_union {
struct perf_event_header header;
struct ip_event ip;
@ -108,6 +115,7 @@ typedef union event_union {
struct fork_event fork;
struct period_event period;
struct lost_event lost;
struct read_event read;
} event_t;
static LIST_HEAD(dsos);
@ -1349,6 +1357,19 @@ static void trace_event(event_t *event)
dprintf(".\n");
}
static int
process_read_event(event_t *event, unsigned long offset, unsigned long head)
{
dprintf("%p [%p]: PERF_EVENT_READ: %d %d %Lu\n",
(void *)(offset + head),
(void *)(long)(event->header.size),
event->read.pid,
event->read.tid,
event->read.value);
return 0;
}
static int
process_event(event_t *event, unsigned long offset, unsigned long head)
{
@ -1373,6 +1394,9 @@ process_event(event_t *event, unsigned long offset, unsigned long head)
case PERF_EVENT_LOST:
return process_lost_event(event, offset, head);
case PERF_EVENT_READ:
return process_read_event(event, offset, head);
/*
* We dont process them right now but they are fine:
*/