test/service: fix spurious failures by extending timeout
Checks
Commit Message
This commit extends the timeout for service_may_be_active()
from 100ms to 1000ms. Local testing on a idle and loaded system
(compiling DPDK with all cores) always completes after 1 ms.
The same timeout waiting code was duplicated in two tests, and
is now refactored to a standalone function avoiding duplication.
Reported-by: David Marchand <david.marchand@redhat.com>
Suggested-by: Mattias Ronnblom <mattias.ronnblom@ericsson.com>
Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
---
app/test/test_service_cores.c | 43 ++++++++++++++++-------------------
1 file changed, 20 insertions(+), 23 deletions(-)
Comments
On 2022-10-06 10:17, Harry van Haaren wrote:
> This commit extends the timeout for service_may_be_active()
> from 100ms to 1000ms. Local testing on a idle and loaded system
> (compiling DPDK with all cores) always completes after 1 ms.
>
> The same timeout waiting code was duplicated in two tests, and
> is now refactored to a standalone function avoiding duplication.
>
> Reported-by: David Marchand <david.marchand@redhat.com>
> Suggested-by: Mattias Ronnblom <mattias.ronnblom@ericsson.com>
> Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
> ---
> app/test/test_service_cores.c | 43 ++++++++++++++++-------------------
> 1 file changed, 20 insertions(+), 23 deletions(-)
>
> diff --git a/app/test/test_service_cores.c b/app/test/test_service_cores.c
> index 359b6dcd8b..5260e078c4 100644
> --- a/app/test/test_service_cores.c
> +++ b/app/test/test_service_cores.c
> @@ -921,12 +921,26 @@ service_lcore_start_stop(void)
> return unregister_all();
> }
>
> +static int
> +service_ensure_stopped_with_timeout(uint32_t sid)
> +{
> + /* give the service time to stop running */
> + int32_t timeout_ms = 1000; > + int i;
i and timeout_ms should have the same type. Or better, have timeout_ms
as a #define (in ms).
1 s timeout seems reasonable to me.
> + for (i = 0; i < timeout_ms; i++) {
> + if (!rte_service_may_be_active(sid))
> + break;
> + rte_delay_ms(SERVICE_DELAY);
rte_delay_ms(1);
> + }
> +
> + return rte_service_may_be_active(sid);
> +}
> +
> /* stop a service and wait for it to become inactive */
> static int
> service_may_be_active(void)
> {
> const uint32_t sid = 0;
> - int i;
>
> /* expected failure cases */
> TEST_ASSERT_EQUAL(-EINVAL, rte_service_may_be_active(10000),
> @@ -946,19 +960,11 @@ service_may_be_active(void)
> TEST_ASSERT_EQUAL(1, service_lcore_running_check(),
> "Service core expected to poll service but it didn't");
>
> - /* stop the service */
> + /* stop the service, and wait for not-active with timeout */
> TEST_ASSERT_EQUAL(0, rte_service_runstate_set(sid, 0),
> "Error: Service stop returned non-zero");
> -
> - /* give the service 100ms to stop running */
> - for (i = 0; i < 100; i++) {
> - if (!rte_service_may_be_active(sid))
> - break;
> - rte_delay_ms(SERVICE_DELAY);
> - }
> -
> - TEST_ASSERT_EQUAL(0, rte_service_may_be_active(sid),
> - "Error: Service not stopped after 100ms");
> + TEST_ASSERT_EQUAL(0, service_ensure_stopped_with_timeout(sid),
> + "Error: Service not stopped after timeout period.");
>
> return unregister_all();
> }
> @@ -972,7 +978,6 @@ service_active_two_cores(void)
> return TEST_SKIPPED;
>
> const uint32_t sid = 0;
> - int i;
>
> uint32_t lcore = rte_get_next_lcore(/* start core */ -1,
> /* skip main */ 1,
> @@ -1002,16 +1007,8 @@ service_active_two_cores(void)
> /* stop the service */
> TEST_ASSERT_EQUAL(0, rte_service_runstate_set(sid, 0),
> "Error: Service stop returned non-zero");
> -
> - /* give the service 100ms to stop running */
> - for (i = 0; i < 100; i++) {
> - if (!rte_service_may_be_active(sid))
> - break;
> - rte_delay_ms(SERVICE_DELAY);
> - }
> -
> - TEST_ASSERT_EQUAL(0, rte_service_may_be_active(sid),
> - "Error: Service not stopped after 100ms");
> + TEST_ASSERT_EQUAL(0, service_ensure_stopped_with_timeout(sid),
> + "Error: Service not stopped after timeout period.");
>
> return unregister_all();
> }
@@ -921,12 +921,26 @@ service_lcore_start_stop(void)
return unregister_all();
}
+static int
+service_ensure_stopped_with_timeout(uint32_t sid)
+{
+ /* give the service time to stop running */
+ int32_t timeout_ms = 1000;
+ int i;
+ for (i = 0; i < timeout_ms; i++) {
+ if (!rte_service_may_be_active(sid))
+ break;
+ rte_delay_ms(SERVICE_DELAY);
+ }
+
+ return rte_service_may_be_active(sid);
+}
+
/* stop a service and wait for it to become inactive */
static int
service_may_be_active(void)
{
const uint32_t sid = 0;
- int i;
/* expected failure cases */
TEST_ASSERT_EQUAL(-EINVAL, rte_service_may_be_active(10000),
@@ -946,19 +960,11 @@ service_may_be_active(void)
TEST_ASSERT_EQUAL(1, service_lcore_running_check(),
"Service core expected to poll service but it didn't");
- /* stop the service */
+ /* stop the service, and wait for not-active with timeout */
TEST_ASSERT_EQUAL(0, rte_service_runstate_set(sid, 0),
"Error: Service stop returned non-zero");
-
- /* give the service 100ms to stop running */
- for (i = 0; i < 100; i++) {
- if (!rte_service_may_be_active(sid))
- break;
- rte_delay_ms(SERVICE_DELAY);
- }
-
- TEST_ASSERT_EQUAL(0, rte_service_may_be_active(sid),
- "Error: Service not stopped after 100ms");
+ TEST_ASSERT_EQUAL(0, service_ensure_stopped_with_timeout(sid),
+ "Error: Service not stopped after timeout period.");
return unregister_all();
}
@@ -972,7 +978,6 @@ service_active_two_cores(void)
return TEST_SKIPPED;
const uint32_t sid = 0;
- int i;
uint32_t lcore = rte_get_next_lcore(/* start core */ -1,
/* skip main */ 1,
@@ -1002,16 +1007,8 @@ service_active_two_cores(void)
/* stop the service */
TEST_ASSERT_EQUAL(0, rte_service_runstate_set(sid, 0),
"Error: Service stop returned non-zero");
-
- /* give the service 100ms to stop running */
- for (i = 0; i < 100; i++) {
- if (!rte_service_may_be_active(sid))
- break;
- rte_delay_ms(SERVICE_DELAY);
- }
-
- TEST_ASSERT_EQUAL(0, rte_service_may_be_active(sid),
- "Error: Service not stopped after 100ms");
+ TEST_ASSERT_EQUAL(0, service_ensure_stopped_with_timeout(sid),
+ "Error: Service not stopped after timeout period.");
return unregister_all();
}