Commit-ID: 96c144512263906cc41a25524fa114c90acd3a01
Gitweb: http://git.kernel.org/tip/96c144512263906cc41a25524fa114c90acd3a01
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Wed, 4 May 2016 12:47:16 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 5 May 2016 21:03:56 -0300
perf trace: Sort summary output by number of events
# trace -a -s sleep 1 |& grep events | tail
gmain (1733), 34 events, 1.0%, 0.000 msec
hexchat (9765), 46 events, 1.4%, 0.000 msec
ssh (11109), 80 events, 2.4%, 0.000 msec
sleep (32631), 81 events, 2.4%, 0.000 msec
qemu-system-x86 (10021), 272 events, 8.2%, 0.000 msec
Xorg (1965), 322 events, 9.7%, 0.000 msec
SoftwareVsyncTh (10922), 366 events, 11.1%, 0.000 msec
gnome-shell (2231), 446 events, 13.5%, 0.000 msec
qemu-system-x86 (9931), 468 events, 14.1%, 0.000 msec
firefox (10871), 1098 events, 33.2%, 0.000 msec
[root@jouet ~]#
Suggested-by: Milian Wolff <milian.wolff@xxxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-ye4cnprhfeiq32ar4lt60dqs@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-trace.c | 49 ++++++++++++++++++++++++++--------------------
1 file changed, 28 insertions(+), 21 deletions(-)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 9e38fe9..aac0074 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -36,6 +36,7 @@
#include "util/bpf-loader.h"
#include "callchain.h"
#include "syscalltbl.h"
+#include "rb_resort.h"
#include <libaudit.h> /* FIXME: Still needed for audit_errno_to_name */
#include <stdlib.h>
@@ -2829,19 +2830,9 @@ static size_t thread__dump_stats(struct thread_trace *ttrace,
return printed;
}
-/* struct used to pass data to per-thread function */
-struct summary_data {
- FILE *fp;
- struct trace *trace;
- size_t printed;
-};
-
-static int trace__fprintf_one_thread(struct thread *thread, void *priv)
+static size_t trace__fprintf_thread(FILE *fp, struct thread *thread, struct trace *trace)
{
- struct summary_data *data = priv;
- FILE *fp = data->fp;
- size_t printed = data->printed;
- struct trace *trace = data->trace;
+ size_t printed = 0;
struct thread_trace *ttrace = thread__priv(thread);
double ratio;
@@ -2860,22 +2851,38 @@ static int trace__fprintf_one_thread(struct thread *thread, void *priv)
printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms);
printed += thread__dump_stats(ttrace, trace, fp);
- data->printed += printed;
+ return printed;
+}
- return 0;
+static unsigned long thread__nr_events(struct thread_trace *ttrace)
+{
+ return ttrace ? ttrace->nr_events : 0;
+}
+
+DEFINE_RESORT_RB(threads, (thread__nr_events(a->thread->priv) < thread__nr_events(b->thread->priv)),
+ struct thread *thread;
+)
+{
+ entry->thread = rb_entry(nd, struct thread, rb_node);
}
static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp)
{
- struct summary_data data = {
- .fp = fp,
- .trace = trace
- };
- data.printed = trace__fprintf_threads_header(fp);
+ DECLARE_RESORT_RB_MACHINE_THREADS(threads, trace->host);
+ size_t printed = trace__fprintf_threads_header(fp);
+ struct rb_node *nd;
- machine__for_each_thread(trace->host, trace__fprintf_one_thread, &data);
+ if (threads == NULL) {
+ fprintf(fp, "%s", "Error sorting output by nr_events!\n");
+ return 0;
+ }
+
+ resort_rb__for_each(nd, threads)
+ printed += trace__fprintf_thread(fp, threads_entry->thread, trace);
- return data.printed;
+ resort_rb__delete(threads);
+
+ return printed;
}
static int trace__set_duration(const struct option *opt, const char *str,
--
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