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Groups > linux.kernel > #1251122
| From | Arnaldo Carvalho de Melo <acme@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 12/23] perf bench mem: Improve user visible strings |
| Date | 2015-10-19 23:50 +0200 |
| Message-ID | <qlqtB-eC-59@gated-at.bofh.it> (permalink) |
| References | <qlqtz-eC-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Ingo Molnar <mingo@kernel.org>
- fix various typos in user visible output strings
- make the output consistent (wrt. capitalization and spelling)
- offer the list of routines to benchmark on '-r help'.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1445241870-24854-11-git-send-email-mingo@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/bench/mem-functions.c | 29 +++++++++++++++++------------
tools/perf/builtin-bench.c | 6 +++---
2 files changed, 20 insertions(+), 15 deletions(-)
diff --git a/tools/perf/bench/mem-functions.c b/tools/perf/bench/mem-functions.c
index 1605249d2912..318da3421e69 100644
--- a/tools/perf/bench/mem-functions.c
+++ b/tools/perf/bench/mem-functions.c
@@ -32,13 +32,17 @@ static int cycles_fd;
static const struct option options[] = {
OPT_STRING('l', "size", &size_str, "1MB",
"Specify the size of the memory buffers. "
- "Available units: B, KB, MB, GB and TB (upper and lower)"),
+ "Available units: B, KB, MB, GB and TB (case insensitive)"),
+
OPT_STRING('r', "routine", &routine_str, "all",
- "Specify the routine to run, \"all\" runs all available routines"),
+ "Specify the routine to run, \"all\" runs all available routines, \"help\" lists them"),
+
OPT_INTEGER('i', "iterations", &iterations,
- "repeat memcpy() invocation this number of times"),
+ "Repeat the function this number of times"),
+
OPT_BOOLEAN('c', "cycles", &use_cycles,
"Use a cycles event instead of gettimeofday() to measure performance"),
+
OPT_END()
};
@@ -106,13 +110,13 @@ static double timeval2double(struct timeval *ts)
#define print_bps(x) do { \
if (x < K) \
- printf(" %14lf B/Sec\n", x); \
+ printf(" %14lf bytes/sec\n", x); \
else if (x < K * K) \
- printf(" %14lfd KB/Sec\n", x / K); \
+ printf(" %14lfd KB/sec\n", x / K); \
else if (x < K * K * K) \
- printf(" %14lf MB/Sec\n", x / K / K); \
+ printf(" %14lf MB/sec\n", x / K / K); \
else \
- printf(" %14lf GB/Sec\n", x / K / K / K); \
+ printf(" %14lf GB/sec\n", x / K / K / K); \
} while (0)
struct bench_mem_info {
@@ -128,10 +132,10 @@ static void __bench_mem_routine(struct bench_mem_info *info, int r_idx, size_t s
double result_bps = 0.0;
u64 result_cycles = 0;
- printf("Routine %s (%s)\n", r->name, r->desc);
+ printf("# Routine '%s' (%s)\n", r->name, r->desc);
if (bench_format == BENCH_FORMAT_DEFAULT)
- printf("# Copying %s Bytes ...\n\n", size_str);
+ printf("# Copying %s bytes ...\n\n", size_str);
if (use_cycles) {
result_cycles = info->do_cycles(r, size);
@@ -142,7 +146,7 @@ static void __bench_mem_routine(struct bench_mem_info *info, int r_idx, size_t s
switch (bench_format) {
case BENCH_FORMAT_DEFAULT:
if (use_cycles) {
- printf(" %14lf cycles/Byte\n", (double)result_cycles/size_total);
+ printf(" %14lf cycles/byte\n", (double)result_cycles/size_total);
} else {
print_bps(result_bps);
}
@@ -192,8 +196,9 @@ static int bench_mem_common(int argc, const char **argv, struct bench_mem_info *
break;
}
if (!info->routines[i].name) {
- printf("Unknown routine: %s\n", routine_str);
- printf("Available routines...\n");
+ if (strcmp(routine_str, "help") && strcmp(routine_str, "h"))
+ printf("Unknown routine: %s\n", routine_str);
+ printf("Available routines:\n");
for (i = 0; info->routines[i].name; i++) {
printf("\t%s ... %s\n",
info->routines[i].name, info->routines[i].desc);
diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c
index 1b585213ba5a..a8fc948c8ace 100644
--- a/tools/perf/builtin-bench.c
+++ b/tools/perf/builtin-bench.c
@@ -49,9 +49,9 @@ static struct bench sched_benchmarks[] = {
};
static struct bench mem_benchmarks[] = {
- { "memcpy", "Benchmark for memcpy()", bench_mem_memcpy },
- { "memset", "Benchmark for memset() tests", bench_mem_memset },
- { "all", "Test all memory benchmarks", NULL },
+ { "memcpy", "Benchmark for memcpy() functions", bench_mem_memcpy },
+ { "memset", "Benchmark for memset() functions", bench_mem_memset },
+ { "all", "Test all memory access benchmarks", NULL },
{ NULL, NULL, NULL }
};
--
2.1.0
--
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[GIT PULL 00/23] perf/core improvements and fixes Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-19 23:50 +0200 [PATCH 14/23] perf bench: Harmonize all the -l/--nr_loops options Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-19 23:50 +0200 [PATCH 08/23] perf bench: List output formatting options on 'perf bench -h' Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-19 23:50 +0200 [PATCH 01/23] perf test: Silence tracepoint event failures Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-19 23:50 +0200 [PATCH 12/23] perf bench mem: Improve user visible strings Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-19 23:50 +0200 Re: [GIT PULL 00/23] perf/core improvements and fixes Ingo Molnar <mingo@kernel.org> - 2015-10-20 09:40 +0200
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