lmbench: New component to measure many performance characteristics
lmbench is a bit outdated tool to do OS performance analysis. The upcoming neotest SR will use lat_tcp from this packages to measure TCP round-trip-time latency. We use a bit patched version with fixes to lat_tcp for errors not to go unnoticed and also lat_tcp.go added to see how using Go compares to plain lat_tcp.c for latencies. In the upcoming neotest SR both lat_tcp C & Go versions will be used to automatically benchmark TCP round-trip-times over network link in between 2 machines.
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