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perf tests: Run time generate shell test suites

Browse source 
Rather than special shell test logic, do a single pass to create an
array of test suites. Hold the shell test file name in the test suite
priv field. This makes the special shell test logic in builtin-test.c
redundant so remove it.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@arm.com>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Bill Wendling <morbo@google.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: llvm@lists.linux.dev
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240221034155.1500118-8-irogers@google.com
This commit is contained in:
Ian Rogers 2024-02-20 19:41:54 -08:00 committed by Namhyung Kim
parent f3295f5b06
commit 964461ee37
3 changed files with 80 additions and 149 deletions
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90
tools/perf/tests/builtin-test.c
View file

@ -130,6 +130,7 @@ static struct test_suite *generic_tests[] = {
static struct test_suite **tests[] = {
generic_tests,
arch_tests,
NULL, /* shell tests created at runtime. */
};
static struct test_workload *workloads[] = {
@ -299,73 +300,12 @@ static int test_and_print(struct test_suite *t, int subtest)
return err;
}
struct shell_test {
const char *file;
};
static int shell_test__run(struct test_suite *test, int subdir __maybe_unused)
{
int err;
struct shell_test *st = test->priv;
char *cmd = NULL;
if (asprintf(&cmd, "%s%s", st->file, verbose ? " -v" : "") < 0)
return TEST_FAIL;
err = system(cmd);
free(cmd);
if (!err)
return TEST_OK;
return WEXITSTATUS(err) == 2 ? TEST_SKIP : TEST_FAIL;
}
static int run_shell_tests(int argc, const char *argv[], int i, int width,
struct intlist *skiplist)
{
struct shell_test st;
const struct script_file *files, *file;
files = list_script_files();
if (!files)
return 0;
for (file = files; file->file; file++) {
int curr = i++;
struct test_case test_cases[] = {
{
.desc = file->desc,
.run_case = shell_test__run,
},
{ .name = NULL, }
};
struct test_suite test_suite = {
.desc = test_cases[0].desc,
.test_cases = test_cases,
.priv = &st,
};
st.file = file->file;
if (test_suite.desc == NULL ||
!perf_test__matches(test_suite.desc, curr, argc, argv))
continue;
pr_info("%3d: %-*s:", i, width, test_suite.desc);
if (intlist__find(skiplist, i)) {
color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
continue;
}
test_and_print(&test_suite, 0);
}
return 0;
}
static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
{
struct test_suite *t;
unsigned int j, k;
int i = 0;
int width = list_script_max_width();
int width = 0;
for_each_test(j, k, t) {
int len = strlen(test_description(t, -1));
@ -440,28 +380,6 @@ static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
}
}
}
return run_shell_tests(argc, argv, i, width, skiplist);
}
static int perf_test__list_shell(int argc, const char **argv, int i)
{
const struct script_file *files, *file;
files = list_script_files();
if (!files)
return 0;
for (file = files; file->file; file++) {
int curr = i++;
struct test_suite t = {
.desc = file->desc
};
if (!perf_test__matches(t.desc, curr, argc, argv))
continue;
pr_info("%3d: %s\n", i, t.desc);
}
return 0;
}
@ -488,9 +406,6 @@ static int perf_test__list(int argc, const char **argv)
test_description(t, subi));
}
}
perf_test__list_shell(argc, argv, i);
return 0;
}
@ -550,6 +465,7 @@ int cmd_test(int argc, const char **argv)
/* Unbuffered output */
setvbuf(stdout, NULL, _IONBF, 0);
tests[2] = create_script_test_suites();
argc = parse_options_subcommand(argc, argv, test_options, test_subcommands, test_usage, 0);
if (argc >= 1 && !strcmp(argv[0], "list"))
return perf_test__list(argc - 1, argv + 1);

129
tools/perf/tests/tests-scripts.c
View file

@ -27,16 +27,6 @@
#include "util/rlimit.h"
#include "util/util.h"
/*
* As this is a singleton built once for the run of the process, there is
* no value in trying to free it and just let it stay around until process
* exits when it's cleaned up.
*/
static size_t files_num = 0;
static struct script_file *files = NULL;
static int files_max_width = 0;
static int shell_tests__dir_fd(void)
{
char path[PATH_MAX], *exec_path;
@ -132,12 +122,30 @@ static char *strdup_check(const char *str)
return newstr;
}
static void append_script(int dir_fd, const char *name, char *desc)
static int shell_test__run(struct test_suite *test, int subtest __maybe_unused)
{
const char *file = test->priv;
int err;
char *cmd = NULL;
if (asprintf(&cmd, "%s%s", file, verbose ? " -v" : "") < 0)
return TEST_FAIL;
err = system(cmd);
free(cmd);
if (!err)
return TEST_OK;
return WEXITSTATUS(err) == 2 ? TEST_SKIP : TEST_FAIL;
}
static void append_script(int dir_fd, const char *name, char *desc,
struct test_suite ***result,
size_t *result_sz)
{
char filename[PATH_MAX], link[128];
struct script_file *files_tmp;
size_t files_num_tmp, len;
int width;
struct test_suite *test_suite, **result_tmp;
struct test_case *tests;
size_t len;
snprintf(link, sizeof(link), "/proc/%d/fd/%d", getpid(), dir_fd);
len = readlink(link, filename, sizeof(filename));
@ -147,33 +155,43 @@ static void append_script(int dir_fd, const char *name, char *desc)
}
filename[len++] = '/';
strcpy(&filename[len], name);
files_num_tmp = files_num + 1;
if (files_num_tmp >= SIZE_MAX) {
pr_err("Too many script files\n");
abort();
tests = calloc(2, sizeof(*tests));
if (!tests) {
pr_err("Out of memory while building script test suite list\n");
return;
}
tests[0].name = strdup_check(name);
tests[0].desc = strdup_check(desc);
tests[0].run_case = shell_test__run;
test_suite = zalloc(sizeof(*test_suite));
if (!test_suite) {
pr_err("Out of memory while building script test suite list\n");
free(tests);
return;
}
test_suite->desc = desc;
test_suite->test_cases = tests;
test_suite->priv = strdup_check(filename);
/* Realloc is good enough, though we could realloc by chunks, not that
* anyone will ever measure performance here */
files_tmp = realloc(files,
(files_num_tmp + 1) * sizeof(struct script_file));
if (files_tmp == NULL) {
pr_err("Out of memory while building test list\n");
abort();
result_tmp = realloc(*result, (*result_sz + 1) * sizeof(*result_tmp));
if (result_tmp == NULL) {
pr_err("Out of memory while building script test suite list\n");
free(tests);
free(test_suite);
return;
}
/* Add file to end and NULL terminate the struct array */
files = files_tmp;
files_num = files_num_tmp;
files[files_num - 1].file = strdup_check(filename);
files[files_num - 1].desc = desc;
files[files_num].file = NULL;
files[files_num].desc = NULL;
width = strlen(desc); /* Track max width of desc */
if (width > files_max_width)
files_max_width = width;
*result = result_tmp;
(*result)[*result_sz] = test_suite;
(*result_sz)++;
}
static void append_scripts_in_dir(int dir_fd)
static void append_scripts_in_dir(int dir_fd,
struct test_suite ***result,
size_t *result_sz)
{
struct dirent **entlist;
struct dirent *ent;
@ -192,7 +210,7 @@ static void append_scripts_in_dir(int dir_fd)
char *desc = shell_test__description(dir_fd, ent->d_name);
if (desc) /* It has a desc line - valid script */
append_script(dir_fd, ent->d_name, desc);
append_script(dir_fd, ent->d_name, desc, result, result_sz);
continue;
}
if (ent->d_type != DT_DIR) {
@ -205,32 +223,35 @@ static void append_scripts_in_dir(int dir_fd)
continue;
}
fd = openat(dir_fd, ent->d_name, O_PATH);
append_scripts_in_dir(fd);
append_scripts_in_dir(fd, result, result_sz);
}
for (i = 0; i < n_dirs; i++) /* Clean up */
zfree(&entlist[i]);
free(entlist);
}
const struct script_file *list_script_files(void)
struct test_suite **create_script_test_suites(void)
{
int dir_fd;
struct test_suite **result = NULL, **result_tmp;
size_t result_sz = 0;
int dir_fd = shell_tests__dir_fd(); /* Walk dir */
if (files)
return files; /* Singleton - we already know our list */
/*
* Append scripts if fd is good, otherwise return a NULL terminated zero
* length array.
*/
if (dir_fd >= 0)
append_scripts_in_dir(dir_fd, &result, &result_sz);
dir_fd = shell_tests__dir_fd(); /* Walk dir */
if (dir_fd < 0)
return NULL;
append_scripts_in_dir(dir_fd);
close(dir_fd);
return files;
}
int list_script_max_width(void)
{
list_script_files(); /* Ensure we have scanned all scripts */
return files_max_width;
result_tmp = realloc(result, (result_sz + 1) * sizeof(*result_tmp));
if (result_tmp == NULL) {
pr_err("Out of memory while building script test suite list\n");
abort();
}
/* NULL terminate the test suite array. */
result = result_tmp;
result[result_sz] = NULL;
if (dir_fd >= 0)
close(dir_fd);
return result;
}

10
tools/perf/tests/tests-scripts.h
View file

@ -2,14 +2,8 @@
#ifndef TESTS_SCRIPTS_H
#define TESTS_SCRIPTS_H
struct script_file {
char *file;
char *desc;
};
#include "tests.h"
/* List available script tests to run - singleton - never freed */
const struct script_file *list_script_files(void);
/* Get maximum width of description string */
int list_script_max_width(void);
struct test_suite **create_script_test_suites(void);
#endif /* TESTS_SCRIPTS_H */