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perf/bench: Carve out mem routine benchmarking 

... so that we can call it multiple times. See next patch.

Reviewed-by: Hitoshi Mitake <mitake.hitoshi@lab.ntt.co.jp>
Signed-off-by: Borislav Petkov <bp@suse.de>
This commit is contained in:
Borislav Petkov 2015-02-26 18:51:37 +01:00
parent 0cf55934ec
commit 515e23f019
1 changed files with 58 additions and 62 deletions
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120
tools/perf/bench/mem-memcpy.c
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@ -135,84 +135,32 @@ struct bench_mem_info {
const char *const *usage;
};
static int bench_mem_common(int argc, const char **argv,
const char *prefix __maybe_unused,
struct bench_mem_info *info)
static void __bench_mem_routine(struct bench_mem_info *info, int r_idx, size_t len, double totallen)
{
int i;
size_t len;
double totallen;
const struct routine *r = &info->routines[r_idx];
double result_bps[2];
u64 result_cycle[2];
argc = parse_options(argc, argv, options,
info->usage, 0);
if (no_prefault && only_prefault) {
fprintf(stderr, "Invalid options: -o and -n are mutually exclusive\n");
return 1;
}
if (use_cycle)
init_cycle();
len = (size_t)perf_atoll((char *)length_str);
totallen = (double)len * iterations;
result_cycle[0] = result_cycle[1] = 0ULL;
result_bps[0] = result_bps[1] = 0.0;
if ((s64)len <= 0) {
fprintf(stderr, "Invalid length:%s\n", length_str);
return 1;
}
/* same to without specifying either of prefault and no-prefault */
if (only_prefault && no_prefault)
only_prefault = no_prefault = false;
for (i = 0; info->routines[i].name; i++) {
if (!strcmp(info->routines[i].name, routine))
break;
}
if (!info->routines[i].name) {
printf("Unknown routine:%s\n", routine);
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);
}
return 1;
}
if (bench_format == BENCH_FORMAT_DEFAULT)
printf("# Copying %s Bytes ...\n\n", length_str);
if (!only_prefault && !no_prefault) {
/* show both of results */
if (use_cycle) {
result_cycle[0] =
info->do_cycle(&info->routines[i], len, false);
result_cycle[1] =
info->do_cycle(&info->routines[i], len, true);
result_cycle[0] = info->do_cycle(r, len, false);
result_cycle[1] = info->do_cycle(r, len, true);
} else {
result_bps[0] =
info->do_gettimeofday(&info->routines[i],
len, false);
result_bps[1] =
info->do_gettimeofday(&info->routines[i],
len, true);
result_bps[0] = info->do_gettimeofday(r, len, false);
result_bps[1] = info->do_gettimeofday(r, len, true);
}
} else {
if (use_cycle) {
result_cycle[pf] =
info->do_cycle(&info->routines[i],
len, only_prefault);
} else {
result_bps[pf] =
info->do_gettimeofday(&info->routines[i],
len, only_prefault);
}
if (use_cycle)
result_cycle[pf] = info->do_cycle(r, len, only_prefault);
else
result_bps[pf] = info->do_gettimeofday(r, len, only_prefault);
}
switch (bench_format) {
@ -265,6 +213,54 @@ static int bench_mem_common(int argc, const char **argv,
die("unknown format: %d\n", bench_format);
break;
}
}
static int bench_mem_common(int argc, const char **argv,
const char *prefix __maybe_unused,
struct bench_mem_info *info)
{
int i;
size_t len;
double totallen;
argc = parse_options(argc, argv, options,
info->usage, 0);
if (no_prefault && only_prefault) {
fprintf(stderr, "Invalid options: -o and -n are mutually exclusive\n");
return 1;
}
if (use_cycle)
init_cycle();
len = (size_t)perf_atoll((char *)length_str);
totallen = (double)len * iterations;
if ((s64)len <= 0) {
fprintf(stderr, "Invalid length:%s\n", length_str);
return 1;
}
/* same to without specifying either of prefault and no-prefault */
if (only_prefault && no_prefault)
only_prefault = no_prefault = false;
for (i = 0; info->routines[i].name; i++) {
if (!strcmp(info->routines[i].name, routine))
break;
}
if (!info->routines[i].name) {
printf("Unknown routine:%s\n", routine);
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);
}
return 1;
}
__bench_mem_routine(info, i, len, totallen);
return 0;
}