We have bunch of apigee proxies running in Hybrid environment. In our performance test we noticed that the proxy latency / overhead is around 300 milliseconds. The proxy latency shot up steadily as the performance test ramped up users/hit rate and then the latency started to slowly come down when the test ramped down the load. I am printing the time taken by all policies to see where the proxy overhead is. But all these policies are finishing under 10 ms (sum of the time taken by all policies that are part of pre and post proxy flows). I am wondering how do I know where is the remaining 290 milliseconds going. I am pretty sure that this time is taken in the gateway as I can see backend response time is not counted in this 300ms.
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