On 2015-5-15, at 06:44, Aaron Wood <wood...@gmail.com<mailto:wood...@gmail.com>> wrote: ICMP prioritization over TCP?
Probably. Ping in parallel to TCP is a hacky way to measure latencies; not only because of prioritization, but also because you don't measure TCP send/receive buffer latencies (and they can be large, auto-tuning is not so great.) You really need to embed timestamps in the TCP bytestream and echo them back. See the recent netperf patch I sent. Lars
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