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perf: Allow printing to arbritrary fds

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This commit is contained in:
Lorenz Meier
2014-05-21 14:19:39 +02:00
parent 9024d76e7c
commit aa2b125a67
4 changed files with 26 additions and 10 deletions
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src/modules/systemlib/perf_counter.c
+11 -5
View File
@@ -281,13 +281,19 @@ perf_reset(perf_counter_t handle)
void
perf_print_counter(perf_counter_t handle)
{
perf_print_counter_fd(0, handle);
}
void
perf_print_counter_fd(int fd, perf_counter_t handle)
{
if (handle == NULL)
return;
switch (handle->type) {
case PC_COUNT:
printf("%s: %llu events\n",
dprintf(fd, "%s: %llu events\n",
handle->name,
((struct perf_ctr_count *)handle)->event_count);
break;
@@ -295,7 +301,7 @@ perf_print_counter(perf_counter_t handle)
case PC_ELAPSED: {
struct perf_ctr_elapsed *pce = (struct perf_ctr_elapsed *)handle;
printf("%s: %llu events, %lluus elapsed, %llu avg, min %lluus max %lluus\n",
dprintf(fd, "%s: %llu events, %lluus elapsed, %llu avg, min %lluus max %lluus\n",
handle->name,
pce->event_count,
pce->time_total,
@@ -308,7 +314,7 @@ perf_print_counter(perf_counter_t handle)
case PC_INTERVAL: {
struct perf_ctr_interval *pci = (struct perf_ctr_interval *)handle;
printf("%s: %llu events, %llu avg, min %lluus max %lluus\n",
dprintf(fd, "%s: %llu events, %llu avg, min %lluus max %lluus\n",
handle->name,
pci->event_count,
(pci->time_last - pci->time_first) / pci->event_count,
@@ -349,12 +355,12 @@ perf_event_count(perf_counter_t handle)
}
void
perf_print_all(void)
perf_print_all(int fd)
{
perf_counter_t handle = (perf_counter_t)sq_peek(&perf_counters);
while (handle != NULL) {
perf_print_counter(handle);
perf_print_counter_fd(fd, handle);
handle = (perf_counter_t)sq_next(&handle->link);
}
}
src/modules/systemlib/perf_counter.h
+13 -3
View File
@@ -121,16 +121,26 @@ __EXPORT extern void perf_cancel(perf_counter_t handle);
__EXPORT extern void perf_reset(perf_counter_t handle);
/**
* Print one performance counter.
* Print one performance counter to stdout
*
* @param handle The counter to print.
*/
__EXPORT extern void perf_print_counter(perf_counter_t handle);
/**
* Print all of the performance counters.
* Print one performance counter to a fd.
*
* @param fd File descriptor to print to - e.g. 0 for stdout
* @param handle The counter to print.
*/
__EXPORT extern void perf_print_all(void);
__EXPORT extern void perf_print_counter_fd(int fd, perf_counter_t handle);
/**
* Print all of the performance counters.
*
* @param fd File descriptor to print to - e.g. 0 for stdout
*/
__EXPORT extern void perf_print_all(int fd);
/**
* Reset all of the performance counters.