jm + latency + cli   1

wrk2
'A constant throughput, correct latency-recording variant of wrk. This is a must-have when measuring network service latency -- corrects for Coordinated Omission error:
wrk's model, which is similar to the model found in many current load generators, computes the latency for a given request as the time from the sending of the first byte of the request to the time the complete response was received. While this model correctly measures the actual completion time of individual requests, it exhibits a strong Coordinated Omission effect, through which most of the high latency artifacts exhibited by the measured server will be ignored. Since each connection will only begin to send a request after receiving a response, high latency responses result in the load generator coordinating with the server to avoid measurement during high latency periods.
wrk  latency  measurement  tools  cli  http  load-testing  testing  load-generation  coordinated-omission  gil-tene 
november 2014 by jm

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