On Fri, Nov 28, 2025 at 2:27 PM Alexis Lothoré (eBPF Foundation) <[email protected]> wrote: > > Hello, > this is a (late) v2 to my first attempt to convert the test_tc_edt > script to test_progs. This new version is way simpler, thanks to > Martin's suggestion about properly using the existing network_helpers > rather than reinventing the wheel. It also fixes a small bug in the > measured effective rate. > > The converted test roughly follows the original script logic, with two > veths in two namespaces, a TCP connection between a client and a server, > and the client pushing a specific amount of data. Time is recorded > before and after the transmission to compute the effective rate. > > There are two knobs driving the robustness of the test in CI: > - the amount of pushed data (the higher, the more precise is the > effective rate) > - the tolerated error margin > > The original test was configured with a 20s duration and a 1% error > margin. The new test is configured with 1MB of data being pushed and a > 2% error margin, to: > - make the duration tolerable in CI > - while keeping enough margin for rate measure fluctuations depending on > the CI machines load
Applied, but it's still a bit flaky in my setup. Fails like this from time to time when run in parallel with other tests: run_test:FAIL:rate error is lower than threshold unexpected rate error is lower than threshold: actual 6 > expected 2 #450 tc_edt:FAIL
