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perf tests: Add a test for time-utils

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Test time ranges work as expected.

Committer testing:

  $ perf test "time utils"
  59: time utils                                            : Ok
  $ perf test -v "time utils"
  59: time utils                                            :
  --- start ---
  test child forked, pid 31711

  parse_nsec_time("0")
  0

  parse_nsec_time("1")
  1000000000

  parse_nsec_time("0.000000001")
  1

  parse_nsec_time("1.000000001")
  1000000001

  parse_nsec_time("123456.123456")
  123456123456000

  parse_nsec_time("1234567.123456789")
  1234567123456789

  parse_nsec_time("18446744073.709551615")
  18446744073709551615

  perf_time__parse_str("1234567.123456789,1234567.123456789")
  start time 1234567123456789, end time 1234567123456789

  perf_time__parse_str("1234567.123456789,1234567.123456790")
  start time 1234567123456789, end time 1234567123456790

  perf_time__parse_str("1234567.123456789,")
  start time 1234567123456789, end time 0

  perf_time__parse_str(",1234567.123456789")
  start time 0, end time 1234567123456789

  perf_time__parse_str("0,1234567.123456789")
  start time 0, end time 1234567123456789

  perf_time__parse_for_ranges("1234567.123456789,1234567.123456790")
  start time 1234567123456789, end time 1234567123456790

  perf_time__parse_for_ranges("10%/1")
  first_sample_time 7654321000000000 last_sample_time 7654321000000100
  start time 0: 7654321000000000, end time 0: 7654321000000009

  perf_time__parse_for_ranges("10%/2")
  first_sample_time 7654321000000000 last_sample_time 7654321000000100
  start time 0: 7654321000000010, end time 0: 7654321000000019

  perf_time__parse_for_ranges("10%/1,10%/2")
  first_sample_time 11223344000000000 last_sample_time 11223344000000100
  start time 0: 11223344000000000, end time 0: 11223344000000009
  start time 1: 11223344000000010, end time 1: 11223344000000019

  perf_time__parse_for_ranges("10%/1,10%/3,10%/10")
  first_sample_time 11223344000000000 last_sample_time 11223344000000100
  start time 0: 11223344000000000, end time 0: 11223344000000009
  start time 1: 11223344000000020, end time 1: 11223344000000029
  start time 2: 11223344000000090, end time 2: 11223344000000100

  test child finished with 0
  ---- end ----
  time utils: Ok
  $

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190604130017.31207-19-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2019-06-04 16:00:16 +03:00 committed by Arnaldo Carvalho de Melo
parent 929afa0092
commit e39a12cbd2
4 changed files with 240 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
tools/perf/tests/Build
View File

@ -51,6 +51,7 @@ perf-y += clang.o
perf-y += unit_number__scnprintf.o
perf-y += mem2node.o
perf-y += map_groups.o
perf-y += time-utils-test.o
$(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c tests/Build
$(call rule_mkdir)

4
tools/perf/tests/builtin-test.c
View File

@ -289,6 +289,10 @@ static struct test generic_tests[] = {
.desc = "mem2node",
.func = test__mem2node,
},
{
.desc = "time utils",
.func = test__time_utils,
},
{
.desc = "map_groups__merge_in",
.func = test__map_groups__merge_in,

1
tools/perf/tests/tests.h
View File

@ -108,6 +108,7 @@ int test__clang_subtest_get_nr(void);
int test__unit_number__scnprint(struct test *test, int subtest);
int test__mem2node(struct test *t, int subtest);
int test__map_groups__merge_in(struct test *t, int subtest);
int test__time_utils(struct test *t, int subtest);
bool test__bp_signal_is_supported(void);
bool test__wp_is_supported(void);

234
tools/perf/tests/time-utils-test.c Normal file
View File

@ -0,0 +1,234 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/compiler.h>
#include <linux/time64.h>
#include <inttypes.h>
#include <string.h>
#include "time-utils.h"
#include "evlist.h"
#include "session.h"
#include "debug.h"
#include "tests.h"
static bool test__parse_nsec_time(const char *str, u64 expected)
{
u64 ptime;
int err;
pr_debug("\nparse_nsec_time(\"%s\")\n", str);
err = parse_nsec_time(str, &ptime);
if (err) {
pr_debug("error %d\n", err);
return false;
}
if (ptime != expected) {
pr_debug("Failed. ptime %" PRIu64 " expected %" PRIu64 "\n",
ptime, expected);
return false;
}
pr_debug("%" PRIu64 "\n", ptime);
return true;
}
static bool test__perf_time__parse_str(const char *ostr, u64 start, u64 end)
{
struct perf_time_interval ptime;
int err;
pr_debug("\nperf_time__parse_str(\"%s\")\n", ostr);
err = perf_time__parse_str(&ptime, ostr);
if (err) {
pr_debug("Error %d\n", err);
return false;
}
if (ptime.start != start || ptime.end != end) {
pr_debug("Failed. Expected %" PRIu64 " to %" PRIu64 "\n",
start, end);
return false;
}
return true;
}
#define TEST_MAX 64
struct test_data {
const char *str;
u64 first;
u64 last;
struct perf_time_interval ptime[TEST_MAX];
int num;
u64 skip[TEST_MAX];
u64 noskip[TEST_MAX];
};
static bool test__perf_time__parse_for_ranges(struct test_data *d)
{
struct perf_evlist evlist = {
.first_sample_time = d->first,
.last_sample_time = d->last,
};
struct perf_session session = { .evlist = &evlist };
struct perf_time_interval *ptime = NULL;
int range_size, range_num;
bool pass = false;
int i, err;
pr_debug("\nperf_time__parse_for_ranges(\"%s\")\n", d->str);
if (strchr(d->str, '%'))
pr_debug("first_sample_time %" PRIu64 " last_sample_time %" PRIu64 "\n",
d->first, d->last);
err = perf_time__parse_for_ranges(d->str, &session, &ptime, &range_size,
&range_num);
if (err) {
pr_debug("error %d\n", err);
goto out;
}
if (range_size < d->num || range_num != d->num) {
pr_debug("bad size: range_size %d range_num %d expected num %d\n",
range_size, range_num, d->num);
goto out;
}
for (i = 0; i < d->num; i++) {
if (ptime[i].start != d->ptime[i].start ||
ptime[i].end != d->ptime[i].end) {
pr_debug("bad range %d expected %" PRIu64 " to %" PRIu64 "\n",
i, d->ptime[i].start, d->ptime[i].end);
goto out;
}
}
if (perf_time__ranges_skip_sample(ptime, d->num, 0)) {
pr_debug("failed to keep 0\n");
goto out;
}
for (i = 0; i < TEST_MAX; i++) {
if (d->skip[i] &&
!perf_time__ranges_skip_sample(ptime, d->num, d->skip[i])) {
pr_debug("failed to skip %" PRIu64 "\n", d->skip[i]);
goto out;
}
if (d->noskip[i] &&
perf_time__ranges_skip_sample(ptime, d->num, d->noskip[i])) {
pr_debug("failed to keep %" PRIu64 "\n", d->noskip[i]);
goto out;
}
}
pass = true;
out:
free(ptime);
return pass;
}
int test__time_utils(struct test *t __maybe_unused, int subtest __maybe_unused)
{
bool pass = true;
pass &= test__parse_nsec_time("0", 0);
pass &= test__parse_nsec_time("1", 1000000000ULL);
pass &= test__parse_nsec_time("0.000000001", 1);
pass &= test__parse_nsec_time("1.000000001", 1000000001ULL);
pass &= test__parse_nsec_time("123456.123456", 123456123456000ULL);
pass &= test__parse_nsec_time("1234567.123456789", 1234567123456789ULL);
pass &= test__parse_nsec_time("18446744073.709551615",
0xFFFFFFFFFFFFFFFFULL);
pass &= test__perf_time__parse_str("1234567.123456789,1234567.123456789",
1234567123456789ULL, 1234567123456789ULL);
pass &= test__perf_time__parse_str("1234567.123456789,1234567.123456790",
1234567123456789ULL, 1234567123456790ULL);
pass &= test__perf_time__parse_str("1234567.123456789,",
1234567123456789ULL, 0);
pass &= test__perf_time__parse_str(",1234567.123456789",
0, 1234567123456789ULL);
pass &= test__perf_time__parse_str("0,1234567.123456789",
0, 1234567123456789ULL);
{
u64 b = 1234567123456789ULL;
struct test_data d = {
.str = "1234567.123456789,1234567.123456790",
.ptime = { {b, b + 1}, },
.num = 1,
.skip = { b - 1, b + 2, },
.noskip = { b, b + 1, },
};
pass &= test__perf_time__parse_for_ranges(&d);
}
{
u64 b = 7654321ULL * NSEC_PER_SEC;
struct test_data d = {
.str = "10%/1",
.first = b,
.last = b + 100,
.ptime = { {b, b + 9}, },
.num = 1,
.skip = { b - 1, b + 10, },
.noskip = { b, b + 9, },
};
pass &= test__perf_time__parse_for_ranges(&d);
}
{
u64 b = 7654321ULL * NSEC_PER_SEC;
struct test_data d = {
.str = "10%/2",
.first = b,
.last = b + 100,
.ptime = { {b + 10, b + 19}, },
.num = 1,
.skip = { b + 9, b + 20, },
.noskip = { b + 10, b + 19, },
};
pass &= test__perf_time__parse_for_ranges(&d);
}
{
u64 b = 11223344ULL * NSEC_PER_SEC;
struct test_data d = {
.str = "10%/1,10%/2",
.first = b,
.last = b + 100,
.ptime = { {b, b + 9}, {b + 10, b + 19}, },
.num = 2,
.skip = { b - 1, b + 20, },
.noskip = { b, b + 8, b + 9, b + 10, b + 11, b + 12, b + 19, },
};
pass &= test__perf_time__parse_for_ranges(&d);
}
{
u64 b = 11223344ULL * NSEC_PER_SEC;
struct test_data d = {
.str = "10%/1,10%/3,10%/10",
.first = b,
.last = b + 100,
.ptime = { {b, b + 9}, {b + 20, b + 29}, { b + 90, b + 100}, },
.num = 3,
.skip = { b - 1, b + 10, b + 19, b + 30, b + 89, b + 101 },
.noskip = { b, b + 9, b + 20, b + 29, b + 90, b + 100},
};
pass &= test__perf_time__parse_for_ranges(&d);
}
pr_debug("\n");
return pass ? 0 : TEST_FAIL;
}