hard20 pts · first answer countsperformance-testingserverlessspike-testing

p99 jumps at the start of a spike

In a spike test on a serverless API, p50 stays at 80 ms but p99 jumps to 3 s during the first minute, then settles. What is the likely cause and a common fix?

A.A database deadlock; restart the database before each testB.DNS lookups on the load generator; turn DNS offC.Cold starts of new instances; use provisioned concurrency or warm-upD.Too much think time in the script; remove all sleeps

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p99 jumps at the start of a spike

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