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Subject[PATCH] perf trace: Tweak summary output
Date
Tweak the summary output as suggested by Ingo Molnar:

[penberg@localhost ~]$ perf trace -a --duration 10000 --summary -- sleep 1
^C
Summary of events:

Xorg (817), 148 events, 0.0%, 0.000 msec

syscall calls min avg max stddev
(msec) (msec) (msec) (%)
--------------- -------- --------- --------- --------- ------
read 7 0.002 0.004 0.011 32.00%
rt_sigprocmask 40 0.001 0.001 0.002 1.31%
ioctl 6 0.002 0.003 0.005 19.45%
writev 7 0.004 0.018 0.059 43.76%
select 9 0.000 74.513 507.869 74.61%
setitimer 4 0.001 0.002 0.002 10.08%

Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
---
tools/perf/builtin-trace.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 2a6149e..943087f 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2104,9 +2104,9 @@ static size_t thread__dump_stats(struct thread_trace *ttrace,

printed += fprintf(fp, "\n");

- printed += fprintf(fp, " msec/call\n");
- printed += fprintf(fp, " syscall calls min avg max stddev\n");
- printed += fprintf(fp, " --------------- -------- -------- -------- -------- ------\n");
+ printed += fprintf(fp, " syscall calls min avg max stddev\n");
+ printed += fprintf(fp, " (msec) (msec) (msec) (%%)\n");
+ printed += fprintf(fp, " --------------- -------- --------- --------- --------- ------\n");

/* each int_node is a syscall */
while (inode) {
@@ -2123,9 +2123,9 @@ static size_t thread__dump_stats(struct thread_trace *ttrace,

sc = &trace->syscalls.table[inode->i];
printed += fprintf(fp, " %-15s", sc->name);
- printed += fprintf(fp, " %8" PRIu64 " %8.3f %8.3f",
+ printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f",
n, min, avg);
- printed += fprintf(fp, " %8.3f %6.2f\n", max, pct);
+ printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct);
}

inode = intlist__next(inode);
--
1.8.3.1


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