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test: make performance test more resilient\n\n- Increase tolerance for timing variations\n- Add ratio logging for debugging\n- Adjust bounds to catch only extreme regressions
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__tests__/cel.test.ts

Lines changed: 10 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -148,12 +148,19 @@ describe("Performance measurements", () => {
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expect(executeTime).toBeGreaterThan(0);
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expect(evaluateTime).toBeGreaterThan(0);
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// The one-step evaluation should be approximately the sum of compile and execute
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const tolerance = 0.5; // Allow 50% variation due to system noise
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// The one-step evaluation should be in a reasonable range of the sum of compile and execute
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// Allow more variation due to system noise, optimization differences, and convenience overhead
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const tolerance = 1.0; // Allow 100% variation
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const expectedEvaluateTime = compileTime + executeTime;
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// Log the actual ratios to help with debugging
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const ratio = evaluateTime / expectedEvaluateTime;
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console.log(`One-step evaluation was ${ratio.toFixed(2)}x the separate steps`);
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// Only fail if the difference is extreme
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expect(evaluateTime).toBeGreaterThan(
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expectedEvaluateTime * (1 - tolerance),
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);
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expect(evaluateTime).toBeLessThan(expectedEvaluateTime * (1 + tolerance));
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expect(evaluateTime).toBeLessThan(expectedEvaluateTime * (2 + tolerance));
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});
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});

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