diff options
| author | Pedro Tammela <pctammela@mojatatu.com> | 2023-11-17 20:12:03 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-11-21 05:06:35 +0300 |
| commit | 025de7b6a6dd44e78d0d45b4f3b4f104ed54b0fd (patch) | |
| tree | 173a6ff69a0b9699ae629d855ea7fc76b61148d6 | |
| parent | b1711d4310c24f6f668e2282e827434f9473c8bd (diff) | |
| download | linux-025de7b6a6dd44e78d0d45b4f3b4f104ed54b0fd.tar.xz | |
selftests: tc-testing: cap parallel tdc to 4 cores
We have observed a lot of lock contention and test instability when running with >8 cores.
Enough to actually make the tests run slower than with fewer cores.
Cap the maximum cores of parallel tdc to 4 which showed in testing to
be a reasonable number for efficiency and stability in different kernel
config scenarios.
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://lore.kernel.org/r/20231117171208.2066136-2-pctammela@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rwxr-xr-x | tools/testing/selftests/tc-testing/tdc.py | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/tc-testing/tdc.py b/tools/testing/selftests/tc-testing/tdc.py index a6718192aff3..f764b43f112b 100755 --- a/tools/testing/selftests/tc-testing/tdc.py +++ b/tools/testing/selftests/tc-testing/tdc.py @@ -1017,6 +1017,7 @@ def main(): parser = pm.call_add_args(parser) (args, remaining) = parser.parse_known_args() args.NAMES = NAMES + args.mp = min(args.mp, 4) pm.set_args(args) check_default_settings(args, remaining, pm) if args.verbose > 2: |