Re: [PATCH net-next 5/9] selftests: drv-net: give HW stats sync time extra 25% of margin
From: Petr Machata <petrm@nvidia.com>
Date: 2026-02-06 15:03:07
Also in:
linux-kselftest
Jakub Kicinski [off-list ref] writes:
There are transient failures for devices which update stats periodically, especially if it's the FW DMA'ing the stats rather than host periodic work querying the FW. Wait 25% longer than strictly necessary. For devices which don't report stats-block-usecs we retain 25 msec as the default wait time.
Right, because now the default is 0.2, and we apply the 1.25 multiplier.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Petr Machata <petrm@nvidia.com>
quoted hunk ↗ jump to hunk
--- tools/testing/selftests/drivers/net/lib/py/env.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)diff --git a/tools/testing/selftests/drivers/net/lib/py/env.py b/tools/testing/selftests/drivers/net/lib/py/env.py index 41cc248ac848..39a98eb2592e 100644 --- a/tools/testing/selftests/drivers/net/lib/py/env.py +++ b/tools/testing/selftests/drivers/net/lib/py/env.py@@ -285,7 +285,7 @@ from .remote import Remote if "Operation not supported" not in e.cmd.stderr: raise - self._stats_settle_time = 0.025 + \ - data.get('stats-block-usecs', 0) / 1000 / 1000 + self._stats_settle_time = \ + 1.25 * data.get('stats-block-usecs', 20000) / 1000 / 1000 time.sleep(self._stats_settle_time)