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| author | Eugene Syromyatnikov <evgsyr@gmail.com> | 2021-10-11 16:46:16 +0200 |
|---|---|---|
| committer | Eugene Syromyatnikov <evgsyr@gmail.com> | 2021-10-12 00:35:48 +0200 |
| commit | 5e63fc252357aa7c39fe5b391e1ba1db19e5f765 (patch) | |
| tree | b869b25bfaf14bc3f96aaf76faa47ebaa15489ef | |
| parent | b9a308a6e921761756b2ba32a62ee413bd67dfcd (diff) | |
| download | strace-5e63fc252357aa7c39fe5b391e1ba1db19e5f765.tar.gz | |
tests: try to make pidns-cache test a bit more robust
Increase SYSCALL_COUNT tenfold in an attempt to get more stable time
measurements. While at it, print some additional information
about the time spent.
* tests/pidns-cache.c (SYSCALL_COUNT): Change from 1000 to 10000.
(main): Store original run time in orig_us variable, print
it along with the run time under the PID NS test harness in a message
to stderr.
| -rw-r--r-- | tests/pidns-cache.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/tests/pidns-cache.c b/tests/pidns-cache.c index 6319a7fda..b80228d07 100644 --- a/tests/pidns-cache.c +++ b/tests/pidns-cache.c @@ -15,7 +15,7 @@ # include <unistd.h> # include <sys/time.h> -# define SYSCALL_COUNT 1000 +# define SYSCALL_COUNT 10000 /** * Max ratio of the execution time with and without pidns translation. @@ -43,11 +43,17 @@ execute_syscalls(void) int main(void) { - long max_us = execute_syscalls() * MAX_TIME_RATIO; + long orig_us = execute_syscalls(); + long max_us = orig_us * MAX_TIME_RATIO; pidns_test_init(); long us = execute_syscalls(); + + fprintf(stderr, "Before PID NS test init: %ld\n" + "After PID NS test init: %ld (%.2f times slower)\n", + orig_us, us, (float) us / orig_us); + if (us > max_us) error_msg_and_fail("pidns translation took too long: %ld us " "(max: %ld us)", us, max_us); |