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Subject[PATCH 2/3] perf bench numa: show more stats of particular threads in verbose mode
Date
In verbose mode perf bench numa shows also GB/s speed, system and user cpu
time for each particular thread. Using of getrusage() can provide much more
per process or per thread stats in future.

Signed-off-by: Petr Holasek <pholasek@redhat.com>
---
tools/perf/bench/numa.c | 32 +++++++++++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index cd872e9c..72edc49 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -23,6 +23,7 @@
#include <pthread.h>
#include <sys/mman.h>
#include <sys/time.h>
+#include <sys/resource.h>
#include <sys/wait.h>
#include <sys/prctl.h>
#include <sys/types.h>
@@ -51,6 +52,9 @@ struct thread_data {
unsigned int loops_done;
u64 val;
u64 runtime_ns;
+ u64 system_time_ns;
+ u64 user_time_ns;
+ double speed_gbs;
pthread_mutex_t *process_lock;
};

@@ -1034,6 +1038,7 @@ static void *worker_thread(void *__tdata)
u64 bytes_done;
long work_done;
u32 l;
+ struct rusage usage;

bind_to_cpumask(td->bind_cpumask);
bind_to_memnode(td->bind_node);
@@ -1186,6 +1191,13 @@ static void *worker_thread(void *__tdata)
timersub(&stop, &start0, &diff);
td->runtime_ns = diff.tv_sec * 1000000000ULL;
td->runtime_ns += diff.tv_usec * 1000ULL;
+ td->speed_gbs = bytes_done / (td->runtime_ns / 1e9) / 1e9;
+
+ getrusage(RUSAGE_THREAD, &usage);
+ td->system_time_ns = usage.ru_stime.tv_sec * 1000000000ULL;
+ td->system_time_ns += usage.ru_stime.tv_usec * 1000ULL;
+ td->user_time_ns = usage.ru_utime.tv_sec * 1000000000ULL;
+ td->user_time_ns += usage.ru_utime.tv_usec * 1000ULL;

free_data(thread_data, g->p.bytes_thread);

@@ -1412,7 +1424,7 @@ static int __bench_numa(const char *name)
double runtime_sec_min;
int wait_stat;
double bytes;
- int i, t;
+ int i, t, p;

if (init())
return -1;
@@ -1548,6 +1560,24 @@ static int __bench_numa(const char *name)
print_res(name, bytes / runtime_sec_max / 1e9,
"GB/sec,", "total-speed", "GB/sec total speed");

+ if (g->p.show_details >= 2) {
+ char tname[32];
+ struct thread_data *td;
+ for (p = 0; p < g->p.nr_proc; p++) {
+ for (t = 0; t < g->p.nr_threads; t++) {
+ memset(tname, 0, 32);
+ td = g->threads + p*g->p.nr_threads + t;
+ snprintf(tname, 32, "process%d:thread%d", p, t);
+ print_res(tname, td->speed_gbs,
+ "GB/sec", "thread-speed", "GB/sec/thread speed");
+ print_res(tname, td->system_time_ns / 1e9,
+ "secs", "thread-system-time", "system CPU time/thread");
+ print_res(tname, td->user_time_ns / 1e9,
+ "secs", "thread-user-time", "user CPU time/thread");
+ }
+ }
+ }
+
free(pids);

deinit();
--
2.1.0


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