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Improve performance on long fat networks (LFNs) #2910

Merged
merged 1 commit into from
Mar 22, 2024
Merged

Improve performance on long fat networks (LFNs) #2910

merged 1 commit into from
Mar 22, 2024

Commits on Jan 11, 2024

  1. Improve performance on long fat networks (LFNs) 

    On Linux, the TCP send buffer size is increased to 32768 if it is less
that this (which it normally is). This however has the effect of disabling
dynamic buffer sizing, leading to a maximum available bandwidth of

max_bandwidth = 262144 (bits) / round_trip_time (secs)

This is not noticeable on a LAN with an RTT of around 0.5ms, but
very noticeable on a WAN with an RTT of 0.25s.

Comments in the config file and manpage in this area are improved, as
is the logging if the parameters are actually set.
    @matt335672
    matt335672 committed Jan 11, 2024
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