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Network

connect() - why are you so slow?

02/08/2024

This is our story of what we learned about the connect() implementation for TCP in Linux. Both its strong and weak points. How connect() latency changes under pressure, and how to open connection so that the syscall latency is deterministic and time-bound...

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connect() - why are you so slow?

The day my ping took countermeasures

07/11/2023

Network

Ping developers clearly put some thought into that. I wondered how far they went. Did they handle clock changes in both directions? Are the bad measurements excluded from the final statistics? How do they test the software?...

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