On Tue, Nov 22, 2022 at 1:41 PM Nathan Bossart <nathandboss...@gmail.com> wrote: > On my machine, the attached patch > improved 'check-world -j8' run time by ~12 seconds (from 3min 8sec to 2min > 56 sec) and src/test/subscription test time by ~17 seconds (from 139 > seconds to 122 seconds).
Nice! Maybe a comment to explain why a single variable is enough? And an assertion that it wasn't already set? And a note to future self: this would be a candidate user of the nearby SetLatches() patch (which is about moving SetLatch() syscalls out from under LWLocks, though this one may not be very hot).