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authorSteven Rostedt <srostedt@redhat.com>2012-04-06 00:47:57 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2012-04-25 13:35:18 +0200
commit4dc1024a7a529626de5a800b10088bcbbc1ae941 (patch)
tree53100c8ed8b599568cc6f1f023e1a709d3eeda1f /tools
parentaaf045f72335653b24784d6042be8e4aee114403 (diff)
downloadop-kernel-dev-4dc1024a7a529626de5a800b10088bcbbc1ae941.zip
op-kernel-dev-4dc1024a7a529626de5a800b10088bcbbc1ae941.tar.gz
perf/events: Add flag to produce nsec output
libtraceevent library prints out in usecs but perf wants to print out in nsecs. Add a flag that lets the user decide to print out in usec or nsec times. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Arun Sharma <asharma@fb.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/lib/traceevent/event-parse.c15
-rw-r--r--tools/lib/traceevent/event-parse.h12
-rw-r--r--tools/perf/util/trace-event-parse.c1
3 files changed, 25 insertions, 3 deletions
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 3ce75b5..c799c19 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -3940,15 +3940,16 @@ void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
struct event_format *event;
unsigned long secs;
unsigned long usecs;
+ unsigned long nsecs;
const char *comm;
void *data = record->data;
int type;
int pid;
int len;
+ int p;
secs = record->ts / NSECS_PER_SEC;
- usecs = record->ts - secs * NSECS_PER_SEC;
- usecs = (usecs + 500) / NSECS_PER_USEC;
+ nsecs = record->ts - secs * NSECS_PER_SEC;
if (record->size < 0) {
do_warning("ug! negative record size %d", record->size);
@@ -3973,7 +3974,15 @@ void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
} else
trace_seq_printf(s, "%16s-%-5d [%03d]", comm, pid, record->cpu);
- trace_seq_printf(s, " %5lu.%06lu: %s: ", secs, usecs, event->name);
+ if (pevent->flags & PEVENT_NSEC_OUTPUT) {
+ usecs = nsecs;
+ p = 9;
+ } else {
+ usecs = (nsecs + 500) / NSECS_PER_USEC;
+ p = 6;
+ }
+
+ trace_seq_printf(s, " %5lu.%0*lu: %s: ", secs, p, usecs, event->name);
/* Space out the event names evenly. */
len = strlen(event->name);
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 2e0222d..8852827 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -334,6 +334,10 @@ enum pevent_func_arg_type {
PEVENT_FUNC_ARG_MAX_TYPES
};
+enum pevent_flag {
+ PEVENT_NSEC_OUTPUT = 1, /* output in NSECS */
+};
+
struct cmdline;
struct cmdline_list;
struct func_map;
@@ -373,6 +377,7 @@ struct pevent {
struct printk_list *printklist;
unsigned int printk_count;
+
struct event_format **events;
int nr_events;
struct event_format **sort_events;
@@ -397,6 +402,8 @@ struct pevent {
int test_filters;
+ int flags;
+
struct format_field *bprint_ip_field;
struct format_field *bprint_fmt_field;
struct format_field *bprint_buf_field;
@@ -408,6 +415,11 @@ struct pevent {
struct event_format *last_event;
};
+static inline void pevent_set_flag(struct pevent *pevent, int flag)
+{
+ pevent->flags |= flag;
+}
+
static inline unsigned short
__data2host2(struct pevent *pevent, unsigned short data)
{
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index 4ec165a..39f22f8 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -45,6 +45,7 @@ int read_trace_init(int file_bigendian, int host_bigendian)
perf_pevent = pevent_alloc();
pevent = perf_pevent;
+ pevent_set_flag(pevent, PEVENT_NSEC_OUTPUT);
pevent_set_file_bigendian(pevent, file_bigendian);
pevent_set_host_bigendian(pevent, host_bigendian);
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