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Linux kernel networking is amazing. Seeing 5GB/s on HTTPS in the lab here using only 4 intel cores @ 2,5Ghz, serving 10Mbps video streams (again mostly IO). That is 10Gbps/core of AES put onto the wire.
You get good throughput from big packets. But my understanding is that there's a fair bit of overhead per-packet, so processing small requests caps out at ~x00k req/sec. Hence redis and memcache both at 150k-500k req/sec. 17m network req/sec out of the box sounds high for linux.
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Naa, this is about half of what the box can do. iperf shows me the box can do 1.5M TX and 1.5M RX.
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Both are doing request batching.
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I'd love to be wrong. Haven't looked at linux benchmarks in a couple of years and it might have gotten better. I'm just surprised. Sounds like something else is happening (like request batching?)
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