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ci: macos: Reduce test concurrency 

Test performance regresses noticably when using all cores. This is more
pronounced with meson than with autoconf, presumably because meson will
schedule the "full number" of tests more consistently.  8 seems to work
OK.

Discussion: https://postgr.es/m/20220927040208.l3shfcidovpzqxfh@awork3.anarazel.de
Backpatch: 15-, where CI was introduced
This commit is contained in:
Andres Freund 2022-10-01 16:55:16 -07:00
parent 1360943d1a
commit 2d2f083104
1 changed files with 4 additions and 1 deletions
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5
.cirrus.yml
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@ -294,7 +294,10 @@ task:
env:
CPUS: 12 # always get that much for cirrusci macOS instances
BUILD_JOBS: $CPUS
TEST_JOBS: $CPUS # already fast enough to not be worth tuning
# Test performance regresses noticably when using all cores. 8 seems to
# work OK. See
# https://postgr.es/m/20220927040208.l3shfcidovpzqxfh%40awork3.anarazel.de
TEST_JOBS: 8
CIRRUS_WORKING_DIR: ${HOME}/pgsql/
CCACHE_DIR: ${HOME}/ccache