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test(perf): set the dense guard calibration reference below the EPYC 7763's readings #1398

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Merged
kvlonge merged 1 commit into from
Nov 10, 2026
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test(perf): set the dense guard calibration reference below the EPYC 7763's readings #1398

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7 changes: 4 additions & 3 deletions tests/e2e/src/sqlbuild/cli/commands/main/compile/helpers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1122,10 +1122,11 @@ def median_wall_seconds(results: tuple[FreshProcessCompileBenchmarkResult, ...])
return statistics.median(result.elapsed_seconds for result in results)


# The slowest fastest-repetition seen on the hosted runner classes the dense budgets fit as they
# are. A measurably slower runner scales the budgets by its own fastest repetition over this; a
# Near the top of the hosted runner classes the dense budgets fit as they are, and below every
# reading of the slower EPYC 7763 class, so that class's run-to-run noise never leaves it without
# a larger budget. A slower runner scales the budgets by its own fastest repetition over this; a
# faster one keeps them unchanged.
_RUNNER_CALIBRATION_REFERENCE_SECONDS: float = 0.55
_RUNNER_CALIBRATION_REFERENCE_SECONDS: float = 0.50
_RUNNER_CALIBRATION_CHECKSUM: int = 2910182
_RUNNER_CALIBRATION_REPETITIONS: int = 7
_RUNNER_CALIBRATION_VALUES: int = 600_000
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