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ci: macos: Reduce test concurrency

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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