Re: [PATCH] Speed up pg_waldump TAP test and fix some GitHub CI Windows flakiness

On Tue, Sep 01, 2026 at 12:32:50PM -0400, Sehrope Sarkuni wrote:
> In the meantime, I tried your v2 on the same linux box v.s. the rest:
>
> time stdout decoded per decoded
> (mean) via IPC archive scenario total
> master 4.51s 139.1 MB 109.8 MB 393.5 MB
> v2 3.78s 37.5 MB 74.2 MB 222.5 MB
> part1 3.74s 57.7 MB 91.1 MB 273.4 MB
> part2 3.19s 37.1 MB 42.6 MB 127.8 MB
> part3 2.52s 19.4 MB 10.8 MB 64.2 MB

The differences between v2 and part1 are the two switches of
$start_lsn to $contrecord_lsn, which don't matter as we want to check
the end of the records. These moves cut already a lot of activity
without touching coverage.

Let's just do Nazir's v2 as a first step with a backpatch to ease the
CI and buildfarm pain a bit. Will apply that portion in a bit, that's
worth its own weight in gold.
--
Michael