Load Testing · Middle · Question 21 of 76
Two generators report p95 = 200 ms and p95 = 400 ms. Is the overall p95 300 ms?
- 1Not necessarily: percentiles can't be averaged, merge the raw data
- 2Yes, but only if both generators sent the same number of requests
- 3Yes: the overall p95 is always the mean of the parts
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Correct answer: Not necessarily: percentiles can't be averaged, merge the raw data
Explanation
Percentiles depend on the whole distribution. Combine raw samples or mergeable histograms (e.g. HdrHistogram), then compute p95.