Day 57 drills

Paper first. Predict before you run.

D1 (your prediction, three numbers: peak throughput, the worker count where p99 crosses 100ms, and which resource gives out first):

D2 (reading a result: throughput rises 1-8 workers then flat 8-32, p99 goes 1ms, 2ms, 4ms, 12ms, where is the knee and what is it telling you):

D3 (p99 vs average: why watch p99 and not the average, and what a healthy average hides):

D4 (the USE method: the three things to check per resource, and the resource you check first for your service):

D5 (capacity: measured knee is 10,000 req/s, what you set the real target at and why not 10,000):