[$] Automatic tuning for weighted interleaving

Date:
Tue, 15 Apr 2025 13:25:49 +0000

Description:
It is common, on NUMA systems, to try to allocate all memory on the local
node, since it will be the fastest. That is not the only possible policy, though; another is weighted interleaving ,
which seeks to distribute allocations across memory controllers to maximize
the bandwidth utilization on each. Configuring such policies can be challenging, though. At the 2025 Linux Storage, Filesystem,
Memory-Management, and BPF Summit, Joshua Hahn ran a session in the memory-management track about how that configuration might be automated.

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Link to news story:
https://lwn.net/Articles/1016842/


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