Sure - bug filed: https://bugs.chromium.org/p/chromium/issues/detail?id=1454242
On Mon, 12 Jun 2023 at 16:35, Stefan Zager <sza...@chromium.org> wrote: > On Mon, Jun 12, 2023 at 2:59 AM Morten Stenshorne <msten...@chromium.org> > wrote: > >> Yotam Hacohen <yo...@chromium.org> writes: >> >> > tl;dr - web_tests will switch to running with threaded compositing by >> default. >> > [...] >> > This change shouldn't increase failures, flakiness, or test runtime, >> > and should not increase the gardener's burden. >> >> This does affect test runtime. It seems especially bad when combining >> WPT tests and non-WPT tests - about twice as slow as before. >> >> Without crrev.com/c/4599846 it takes 33 seconds. With it, 59 seconds. >> >> The command I used: >> tools/run_web_tests.py -t Release -f external/wpt/css/css-multicol >> fast/multicol >> > > Morten, can you file a bug about this? > > We did analyze try bot runtimes before launching, and found little to no > effect. > We haven't yet had a chance to analyze runtimes across the CI fleet after > launching, but we intend to. > > The test runner spins up a new content_shell for each unique permutation > of command-line > flags it encounters. It's likely that the test runner is creating more > content_shells with this feature > enabled, and I wonder if it's leading to thrashing on your system. > > Thanks, > > Stefan > > >> -- >> Morten Stenshorne, Software developer, >> Blink/Layout, Google, Oslo, Norway >> >> -- >> You received this message because you are subscribed to the Google Groups >> "blink-dev" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to blink-dev+unsubscr...@chromium.org. >> To view this discussion on the web visit >> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/ozzi4jndc86x.fsf%40aeneas.osl.corp.google.com >> . >> > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+unsubscr...@chromium.org. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAKWZFm5eyta47z5Gk4s5F1NwZX2KGL4eBgr7sf7tCdCFZHNU9A%40mail.gmail.com.
