[PATCH 1/6 -tip] perf stat: define MATCH_EVENT for easy attrschecking

From: Jaswinder Singh Rajput
Date: Wed Jul 01 2009 - 05:46:02 EST



MATCH_EVENT is useful :
1. for multiple attrs checking
2. avoid repetition of PERF_TYPE_ and PERF_COUNT_ and save space
3. avoids line breakage

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@xxxxxxxxx>
---
tools/perf/builtin-stat.c | 27 ++++++++++-----------------
1 files changed, 10 insertions(+), 17 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 2e03524..6bf2b80 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -96,6 +96,10 @@ static u64 walltime_nsecs_noise;
static u64 runtime_cycles_avg;
static u64 runtime_cycles_noise;

+#define MATCH_EVENT(t, c, counter) \
+ (attrs[counter].type == PERF_TYPE_##t && \
+ attrs[counter].config == PERF_COUNT_##c)
+
#define ERR_PERF_OPEN \
"Error: counter %d, sys_perf_counter_open() syscall returned with %d (%s)\n"

@@ -132,13 +136,8 @@ static void create_perf_stat_counter(int counter, int pid)
*/
static inline int nsec_counter(int counter)
{
- if (attrs[counter].type != PERF_TYPE_SOFTWARE)
- return 0;
-
- if (attrs[counter].config == PERF_COUNT_SW_CPU_CLOCK)
- return 1;
-
- if (attrs[counter].config == PERF_COUNT_SW_TASK_CLOCK)
+ if (MATCH_EVENT(SOFTWARE, SW_CPU_CLOCK, counter) ||
+ MATCH_EVENT(SOFTWARE, SW_TASK_CLOCK, counter))
return 1;

return 0;
@@ -192,11 +191,9 @@ static void read_counter(int counter)
/*
* Save the full runtime - to allow normalization during printout:
*/
- if (attrs[counter].type == PERF_TYPE_SOFTWARE &&
- attrs[counter].config == PERF_COUNT_SW_TASK_CLOCK)
+ if (MATCH_EVENT(SOFTWARE, SW_TASK_CLOCK, counter))
runtime_nsecs[run_idx] = count[0];
- if (attrs[counter].type == PERF_TYPE_HARDWARE &&
- attrs[counter].config == PERF_COUNT_HW_CPU_CYCLES)
+ if (MATCH_EVENT(HARDWARE, HW_CPU_CYCLES, counter))
runtime_cycles[run_idx] = count[0];
}

@@ -290,9 +287,7 @@ static void nsec_printout(int counter, u64 *count, u64 *noise)

fprintf(stderr, " %14.6f %-24s", msecs, event_name(counter));

- if (attrs[counter].type == PERF_TYPE_SOFTWARE &&
- attrs[counter].config == PERF_COUNT_SW_TASK_CLOCK) {
-
+ if (MATCH_EVENT(SOFTWARE, SW_TASK_CLOCK, counter)) {
if (walltime_nsecs_avg)
fprintf(stderr, " # %10.3f CPUs ",
(double)count[0] / (double)walltime_nsecs_avg);
@@ -305,9 +300,7 @@ static void abs_printout(int counter, u64 *count, u64 *noise)
fprintf(stderr, " %14Ld %-24s", count[0], event_name(counter));

if (runtime_cycles_avg &&
- attrs[counter].type == PERF_TYPE_HARDWARE &&
- attrs[counter].config == PERF_COUNT_HW_INSTRUCTIONS) {
-
+ MATCH_EVENT(HARDWARE, HW_INSTRUCTIONS, counter)) {
fprintf(stderr, " # %10.3f IPC ",
(double)count[0] / (double)runtime_cycles_avg);
} else {
--
1.6.0.6



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