Hey,

Could also be this one: https://gerrit.fd.io/r/c/vpp/+/45918/5

These patches don’t really change test behavior, only scheduling. Before 45918, 
with TEST_JOBS > 1, the pipeline would get underutilized “randomly”, due to 
scheduling at most one test class per finished test class. So if a 1-cpu class 
followed 4-cpu class, then 3 cpus would sit idle. With this patch, the pipeline 
is refilled properly.

I also noticed that any extra cpus (like for vcl tests) were unaccounted for - 
that’s what the later patch fixes.

If the failures are “random”, then it means the tests are flaky and either need 
to fixed or marked for solo run as a temporary(?!) measure. I’d bet $.25 that 
these were fake-solo-run before due to pipeline underutilization.

Regards,
Klement

> On 4 Jun 2026, at 19:30, Dave Wallace via lists.fd.io 
> <[email protected]> wrote:
> 
> Ole/Klement,
> 
> Can you please help triage these new intermittent / non-patch related test 
> failures?
> 
> The frequency of intermittent/ non-patch related test failures have spiked in 
> the CI ever since Ole merged the batch of Klement's  test updates in gerrit.
> 
> Here's some more that I encountered on my CI monitoring gerrit change [0]:
> https://www.google.com/url?q=https://github.com/FDio/vpp/actions/runs/26828951273/job/79105790972&source=gmail-imap&ust=1781199056000000&usg=AOvVaw386qhQrZeq8JYQ1UbilDnW
> https://www.google.com/url?q=https://github.com/FDio/vpp/actions/runs/26916331530/job/79436593001&source=gmail-imap&ust=1781199056000000&usg=AOvVaw0L8Z8McTXF6BqH53pZiW28
> 
> Thanks,
> -daw-
> [0]   
> https://www.google.com/url?q=https://gerrit.fd.io/r/c/vpp/%2B/45941&source=gmail-imap&ust=1781199056000000&usg=AOvVaw2asscMzmXEXYxjjeddvXv_
> 
>> On 6/4/26 11:58, Matus Fabian -X (matfabia - PANTHEON TECHNOLOGIES@Cisco) 
>> via lists.fd.io wrote:
>> Hi,
>> 
>> Today I noticed excess random failures, not related to patch, of make test 
>> in CI across different jobs on a couple of patches.
>> Some examples:
>> https://www.google.com/url?q=https://github.com/FDio/vpp/actions/runs/26952741597/job/79522258003&source=gmail-imap&ust=1781199056000000&usg=AOvVaw1ALoKUFN46rZlEmQpwjojU
>> https://www.google.com/url?q=https://github.com/FDio/vpp/actions/runs/26935962088/job/79468040688&source=gmail-imap&ust=1781199056000000&usg=AOvVaw3OQN_Dos849rFGWXIxyrEB
>> https://www.google.com/url?q=https://github.com/FDio/vpp/actions/runs/26937415597/job/79470773670&source=gmail-imap&ust=1781199056000000&usg=AOvVaw31_vDtnQQNTHGlo2YfFNpn
>> https://www.google.com/url?q=https://github.com/FDio/vpp/actions/runs/26937415597/job/79470773732&source=gmail-imap&ust=1781199056000000&usg=AOvVaw36UUipJ6sAUo4Fidziguv0
>> 
>> Regards,
>> Matus
>> 
>> 
>> 
> 
> 
> 
> 
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  • [... Matus Fabian -X (matfabia - PANTHEON TECHNOLOGIES@Cisco) via lists.fd.io
    • ... Florin Coras via lists.fd.io
    • ... Dave Wallace via lists.fd.io
      • ... Klement Sekera via lists.fd.io
        • ... Dave Wallace via lists.fd.io
          • ... Klement Sekera via lists.fd.io
            • ... Dave Wallace via lists.fd.io
              • ... Klement Sekera via lists.fd.io
                • ... Dave Wallace via lists.fd.io
                • ... Klement Sekera via lists.fd.io
          • ... Klement Sekera via lists.fd.io

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