Hi Willem, On 19/09/2024 14:43, Willem de Bruijn wrote: > From: Willem de Bruijn <willemb@xxxxxxxxxx> > > Some packetdrill tests are flaky in debug mode. As discussed, increase > tolerance. Thank you for the patch! > We have been doing this for debug builds outside ksft too. > > Previous setting was 10000. A manual 50 runs in virtme-ng showed two > failures that needed 12000. To be on the safe side, Increase to 14000. So far (in 3 runs), it looks like 14000 is enough. But I guess it is still a bit too early to conclude that. https://netdev.bots.linux.dev/contest.html?executor=vmksft-packetdrill-dbg (Your patch has been introduced in the net-next-2024-09-19--15-00 branch.) Personally, I would not be chocked if the tolerance was even 10x higher to cope with this very slow environment where we care less about timing I think. But if less works, that's good: Acked-by: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx> Just one question for later: in the GitHub repo, some tests set the tolerance in the .pkt file, will it be OK for these tests? I guess yes, because the max they set is 10k, but I just want to double-check. (Note that it is now easier to spot other errors :) e.g.) https://netdev-3.bots.linux.dev/vmksft-packetdrill-dbg/results/779660/22-tcp-zerocopy-epoll-exclusive-pkt/stdout Cheers, Matt -- Sponsored by the NGI0 Core fund.