The new names are intended to match those in an upcoming patch that adds
a few GUCs to configure the SLRU buffer sizes.
Backwards compatibility concern: this changes the accepted names for
function pg_stat_slru_rest(). Since this function recognizes "any other
string" as a request to reset the entry for "other", this means that
calling it with the old names would silently reset "other" instead of
doing nothing or throwing an error.
Reviewed-by: Andrey M. Borodin <x4mmm@yandex-team.ru>
Discussion: https://postgr.es/m/202402261616.dlriae7b6emv@alvherre.pgsql
On slow machines the modified test could end up switching the order in which
transactional stats are reported in one session and non-transactional stats in
another session. As stats handling of truncate is implemented as setting
live/dead rows 0, the order in which a truncate's stats changes are applied,
relative to normal stats updates, matters. The handling of stats for truncate
hasn't changed due to shared memory stats, this is longstanding behavior.
We might want to improve truncate's stats handling in the future, but for now
just change the order of forced flushed to make the test stable.
Reported-By: Christoph Berg <myon@debian.org>
Discussion: https://postgr.es/m/YoZf7U/WmfmFYFEx@msg.df7cb.de
With -DCATCACHE_FORCE_RELEASE a few tests failed. Those were trying to test
behavior in the absence of invalidation processing and
-DCATCACHE_FORCE_RELEASE obviously adds a lot of invalidation processing. The
test already tried to handle debug_discard_caches > 0, by disabling it for
individual tests.
Instead hide potentially problematic function calls in a wrapper function that
catches the does-not-exist error. The error isn't the actually interesting
bit, it's whether the stats entry still exist afterwards.
I confirmed that the tests still catches leaked function stats if I nuke the
protections against that in pgstat_function.c.
Per buildfarm animal prion.
Discussion: https://postgr.es/m/20220407165709.jgdkrzqlkcwue6ko@alap3.anarazel.de
It might be worth instead splitting the test up to produce a smaller
alternative output file. But that's not trivial either, due to the number of
steps defined. And more than I want to do tonight.
Per buildfarm.
Alvaro Herrera
Andres Freund