On Mon, Jul 21, 2025 at 6:27 AM Jakub Brnak jbrnak@redhat.com wrote:

From: Veronika Molnarova vmolnaro@redhat.com

Create temporary directories for storing log files for shell tests that could help while debugging. The log files are necessary for perftool testsuite test cases also. If the variable KEEP_TEST_LOGS is set keep the logs, else delete them.

Is there perhaps a kunit equivalent of log files so we could keep the implementations as similar as possible?

Thanks, Ian

Signed-off-by: Michael Petlan mpetlan@redhat.com Signed-off-by: Veronika Molnarova vmolnaro@redhat.com Signed-off-by: Jakub Brnak jbrnak@redhat.com

---

tools/perf/tests/builtin-test.c | 90 ++++++++++++++++++++++++++++++++ tools/perf/tests/tests-scripts.c | 3 ++ tools/perf/tests/tests-scripts.h | 1 + 3 files changed, 94 insertions(+)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 4e3d2f779b01..89b180798224 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -6,6 +6,7 @@ */ #include <ctype.h> #include <fcntl.h> +#include <ftw.h> #include <errno.h> #ifdef HAVE_BACKTRACE_SUPPORT #include <execinfo.h> @@ -282,6 +283,86 @@ static bool test_exclusive(const struct test_suite *t, int test_case) return t->test_cases[test_case].exclusive; }

+static int delete_file(const char *fpath, const struct stat *sb __maybe_unused,

•                                            int typeflag, struct FTW *ftwbuf)
  

+{

•   int rv = -1;
  

•   /* Stop traversal if going too deep */
  

•   if (ftwbuf->level > 5) {
  

•           pr_err("Tree traversal reached level %d, stopping.", ftwbuf->level);
  

•           return rv;
  

•   }
  

•   /* Remove only expected directories */
  

•   if (typeflag == FTW_D || typeflag == FTW_DP){
  

•           const char *dirname = fpath + ftwbuf->base;
  

•           if (strcmp(dirname, "logs") && strcmp(dirname, "examples") &&
  

•                   strcmp(dirname, "header_tar") && strncmp(dirname, "perf_", 5)) {
  

•                           pr_err("Unknown directory %s", dirname);
  

•                           return rv;
  

•                    }
  

•   }
  

•   /* Attempt to remove the file */
  

•   rv = remove(fpath);
  

•   if (rv)
  

•           pr_err("Failed to remove file: %s", fpath);
  

•   return rv;
  

+}

+static bool create_logs(struct test_suite *t, int pass){

•   bool store_logs = t->priv && ((struct shell_info*)(t->priv))->store_logs;
  

•   if (pass == 1 && (!test_exclusive(t, 0) || sequential || dont_fork)) {
  

•           /* Sequential and non-exclusive tests run on the first pass. */
  

•           return store_logs;
  

•   }
  

•   else if (pass != 1 && test_exclusive(t, 0) && !sequential && !dont_fork) {
  

•           /* Exclusive tests without sequential run on the second pass. */
  

•           return store_logs;
  

•   }
  

•   return false;
  

+}

+static char *setup_shell_logs(const char *name) +{

•   char template[PATH_MAX];
  

•   char *temp_dir;
  

•   if (snprintf(template, PATH_MAX, "/tmp/perf_test_%s.XXXXXX", name) < 0) {
  

•           pr_err("Failed to create log dir template");
  

•           return NULL; /* Skip the testsuite */
  

•   }
  

•   temp_dir = mkdtemp(template);
  

•   if (temp_dir) {
  

•           setenv("PERFSUITE_RUN_DIR", temp_dir, 1);
  

•           return strdup(temp_dir);
  

•   }
  

•   else {
  

•           pr_err("Failed to create the temporary directory");
  

•   }
  

•   return NULL; /* Skip the testsuite */
  

+}

+static void cleanup_shell_logs(char *dirname) +{

•   char *keep_logs = getenv("PERFTEST_KEEP_LOGS");
  

•   /* Check if logs should be kept or do cleanup */
  

•   if (dirname) {
  

•           if (!keep_logs || strcmp(keep_logs, "y") != 0) {
  

•                   nftw(dirname, delete_file, 8, FTW_DEPTH | FTW_PHYS);
  

•           }
  

•           free(dirname);
  

•   }
  

•   unsetenv("PERFSUITE_RUN_DIR");
  

+}

static bool perf_test__matches(const char *desc, int suite_num, int argc, const char *argv[]) { int i; @@ -626,6 +707,7 @@ static int __cmd_test(struct test_suite **suites, int argc, const char *argv[], for (struct test_suite **t = suites; *t; t++, curr_suite++) { int curr_test_case; bool suite_matched = false;

•                   char *tmpdir = NULL;
  
                    if (!perf_test__matches(test_description(*t, -1), curr_suite, argc, argv)) {
                            /*
  

@@ -655,6 +737,13 @@ static int __cmd_test(struct test_suite **suites, int argc, const char *argv[], }

                    for (unsigned int run = 0; run < runs_per_test; run++) {

•                           /* Setup temporary log directories for shell test suites */
  

•                           if (create_logs(*t, pass)) {
  

•                                   tmpdir = setup_shell_logs((*t)->desc);
  

•                                   if (tmpdir == NULL)  /* Couldn't create log dir, skip test suite */
  

•                                           ((struct shell_info*)((*t)->priv))->has_setup = FAILED_SETUP;
  

•                           }
                            test_suite__for_each_test_case(*t, curr_test_case) {
                                    if (!suite_matched &&
                                        !perf_test__matches(test_description(*t, curr_test_case),
  

@@ -667,6 +756,7 @@ static int __cmd_test(struct test_suite **suites, int argc, const char *argv[], goto err_out; } }

•                   cleanup_shell_logs(tmpdir);
            }
            if (!sequential) {
                    /* Parallel mode starts tests but doesn't finish them. Do that now. */
  

diff --git a/tools/perf/tests/tests-scripts.c b/tools/perf/tests/tests-scripts.c index d680a878800f..d4e382898a30 100644 --- a/tools/perf/tests/tests-scripts.c +++ b/tools/perf/tests/tests-scripts.c @@ -251,6 +251,7 @@ static struct test_suite* prepare_test_suite(int dir_fd)

    test_info->base_path = strdup_check(dirpath);           /* Absolute path to dir */
    test_info->has_setup = NO_SETUP;

•   test_info->store_logs = false;
  
    test_suite->priv = test_info;
    test_suite->desc = NULL;
  

@@ -427,6 +428,8 @@ static void append_suits_in_dir(int dir_fd, continue; }

•           /* Store logs for testsuite is sub-directories */
  

•           ((struct shell_info*)(test_suite->priv))->store_logs = true;
            if (is_test_script(fd, SHELL_SETUP)) {  /* Check for setup existance */
                    char *desc = shell_test__description(fd, SHELL_SETUP);
                    test_suite->desc = desc;        /* Set the suite name by the setup description */
  

diff --git a/tools/perf/tests/tests-scripts.h b/tools/perf/tests/tests-scripts.h index da4dcd26140c..41da0a175e4e 100644 --- a/tools/perf/tests/tests-scripts.h +++ b/tools/perf/tests/tests-scripts.h @@ -16,6 +16,7 @@ enum shell_setup { struct shell_info { const char *base_path; enum shell_setup has_setup;

•   bool store_logs;
  

};

struct test_suite **create_script_test_suites(void);

2.50.1