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test-recurse-dir: output some simple timing info, comparing recurse_dir() and nftw()

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This commit is contained in:
Lennart Poettering
2021-10-08 10:47:41 +02:00
parent aab35b1e59
commit 25d7a71774
1 changed files with 7 additions and 0 deletions
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7
src/test/test-recurse-dir.c
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@@ -120,6 +120,7 @@ static int recurse_dir_callback(
int main(int argc, char *argv[]) {
_cleanup_strv_free_ char **list_recurse_dir = NULL;
const char *p;
usec_t t1, t2, t3, t4;
int r;
log_show_color(true);
@@ -131,14 +132,20 @@ int main(int argc, char *argv[]) {
p = "/usr/share/man"; /* something hopefully reasonably stable while we run (and limited in size) */
/* Enumerate the specified dirs in full, once via nftw(), and once via recurse_dir(), and ensure the results are identical */
t1 = now(CLOCK_MONOTONIC);
r = recurse_dir_at(AT_FDCWD, p, 0, UINT_MAX, RECURSE_DIR_SORT|RECURSE_DIR_ENSURE_TYPE|RECURSE_DIR_SAME_MOUNT, recurse_dir_callback, &list_recurse_dir);
t2 = now(CLOCK_MONOTONIC);
if (r == -ENOENT) {
log_warning_errno(r, "Couldn't open directory %s, ignoring: %m", p);
return EXIT_TEST_SKIP;
}
assert_se(r >= 0);
t3 = now(CLOCK_MONOTONIC);
assert_se(nftw(p, nftw_cb, 64, FTW_PHYS|FTW_MOUNT) >= 0);
t4 = now(CLOCK_MONOTONIC);
log_info("recurse_dir(): %s – nftw(): %s", FORMAT_TIMESPAN(t2 - t1, 1), FORMAT_TIMESPAN(t4 - t3, 1));
strv_sort(list_recurse_dir);
strv_sort(list_nftw);