On 12/1/21 16:09, David Lang wrote:
On Wed, 1 Dec 2021, David P. Reed wrote:
To say it again: More memory *doesn't* improve throughput when the
queue depths exceed one packet on average
slight disagreement here. the buffer improves throughput up to the
point where it handles one burst of packets. When packets are
transmitted individually, that's about one packet (insert hand waving
about scheduling delays, etc). but with wifi where you can transmit
multiple packets in one airtime slot, you need enough buffer to handle
the entire burst.
A different hand-wave: what about "packet trains"? They make using
queuing networks mis-estimate, do they come close together enough that
routers need to be sensitive to them, and affect the number of packets
they need to buffer?
--dave
--
David Collier-Brown, | Always do right. This will gratify
System Programmer and Author | some people and astonish the rest
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