Despite a recent
git fetch https://gitlab.haskell.org/ghc/ghc-performance-notes.git
refs/notes/perf:refs/notes/ci/perf
I'm getting lots of perf regressions in HEAD. For example
=====> T9203(normal) 1 of 1 [0, 0, 0]
]0;T9203(normal) 1 of 1 [0, 0, 0]cd "T9203.run" &&
"/home/simonpj/code/HEAD-3/inplace/bin/ghc-stage2" -o T9203 T9203.hs
-dcore-lint -dstg-lint -dcmm-lint -no-user-package-db -rtsopts
-fno-warn-missed-specialisations -fshow-warning-groups
-fdiagnostics-color=never -fno-diagnostics-show-caret -Werror=compat
-dno-debug-output -O2<
cd "T9203.run" && ./T9203 +RTS -V0 -tT9203.stats --machine-readable -RTS <
runtime/bytes allocated increased from x86_64-linux-deb9 baseline @ HEAD~28:
Expected T9203 (normal) runtime/bytes allocated: 56046952.0 +/-5%
Lower bound T9203 (normal) runtime/bytes allocated: 53244604
Upper bound T9203 (normal) runtime/bytes allocated: 58849300
Actual T9203 (normal) runtime/bytes allocated: 108464536
Deviation T9203 (normal) runtime/bytes allocated: 93.5 %
*** unexpected stat test failure for T9203(normal)
Performance Metrics (test environment: local):
T9203(normal) runtime/bytes allocated
108464536.000
(baseline @ HEAD~28)
56046952.000 [increased, 93.5%]
What am I doing wrong?
Simon
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