* RFC: making sch_cake multicore?
@ 2023-07-31 19:10 Dave Taht
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From: Dave Taht @ 2023-07-31 19:10 UTC (permalink / raw)
To: Linux Kernel Network Developers
The ongoing, everlasting feature request for CAKE has been to speed it
up on now common multicore embedded hardware. 4 and 8 cores are
increasingly common in my world. I am really out of date on how
feasible this would be, in fact I don't know if older efforts to
remove the locks from pfifo_fast ever succeeded. Similarly, on inbound
shaping, we remain dependent on a tc filter matchall... mirred into
an ifb, which is quite slow and apparently still single threaded.
Leveraging some shared memory area for some shared parameters in a
mqprio-like design is on my mind, but somehow that would have to share
some data with sub-qdiscs.
Over here is a design document talking about two approaches to this so
far. Please comment there. Thx!
https://docs.google.com/document/d/1tTYBPeaRdCO9AGTGQCpoiuLORQzN_bG3TAkEolJPh28/edit#heading=h.1d4d73u2m8nx
--
Podcast: https://www.youtube.com/watch?v=bxmoBr4cBKg
Dave Täht CSO, LibreQos
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