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Introduce Warm-up Phase for Dudect Measurement #289

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Merged
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May 8, 2025
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Introduce Warm-up Phase for Dudect Measurement #289

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16 changes: 14 additions & 2 deletions dudect/fixture.c
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Original file line number Diff line number Diff line change
Expand Up @@ -196,8 +196,20 @@ static bool doit(int mode)
bool ret = measure(before_ticks, after_ticks, input_data, mode);
differentiate(exec_times, before_ticks, after_ticks);
prepare_percentiles(exec_times, percentiles);
update_statistics(exec_times, classes, percentiles);
ret &= report();

/* This warm-up step discards the first measurement batch by skipping
* its statistical analysis. A static boolean flag controls this by
* marking the initial execution, ensuring only the first call within
* a test run is excluded from the t-test computation.
*/
static bool first_time = true;
if (first_time) {
first_time = false;
ret = true;
} else {
update_statistics(exec_times, classes, percentiles);
ret &= report();
}

free(before_ticks);
free(after_ticks);
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