Network Diagram. We want to maximize the throughput from the blue box (the client) to the green box (HAProxy) Summary We were able to push through almost 450 MB/sec through HAProxy (which terminated our SSL) by carefully matching our 4-core HAProxy with 2 x 4-core Gorouters (which were on a much slower ESXi host). Results Bandwidth MB/second Configuration 201.27MB 1 HAProxy: 1 vCPU 136.47MB 1 HAProxy: 2 vCPUs 270.56MB 2 Gorouters: 1 vCPU 350.48MB 2 Gorouters: 2 vCPUs 447.49MB 1 HAProxy, 2 Gorouters: 4 vCPUs 0. HAProxy with 1 vCPU HAProxy had only 1 vCPU during this iteration, and the CPU was maxed to 100% during the test (according to htop). We suspect that TLS was the culprit for much of the traffic: HAProxy terminated TLS traffic inbound, and initiated TLS to the Gorouters.
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