Graphs are not mine, it's from Stripe engineers, so I've no control in how they are generated. About 90th vs 99th, I was talking about 99th but in the case of R

Graphs are not mine, it's from Stripe engineers, so I've no control in how they are generated. About 90th vs 99th, I was talking about 99th but in the case of Redis latency spikes due to fork, you would get exactly the same graph as all the requests are delayed in this moment.