From b507a7a19b5d9a8ed2500c5a7159353e02846901 Mon Sep 17 00:00:00 2001 From: Andres Freund Date: Sat, 1 Oct 2022 16:55:16 -0700 Subject: [PATCH] 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 --- .cirrus.yml | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/.cirrus.yml b/.cirrus.yml index fe8da021eda..638850a0fec 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -226,7 +226,10 @@ 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 -- 2.39.5