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Enable Multi-Gen LRU (#2392)

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* Enable Multi-Gen LRU

Multi-Gen LRU should improve performance under memory pressure. This is
especially useful for embedded platforms where memory is scarce.

* Add service to configure Multi-Gen LRU

Use min_ttl_ms of 1 which is the least aggressive in terms of lag. Since
we are a server application, we can tune trashing prevention with a
higher acceptable lag.
This commit is contained in:
Stefan Agner
2023-03-31 23:28:43 +02:00
committed by GitHub
parent bdb3bd3ab1
commit c7588e9350
2 changed files with 12 additions and 1 deletions
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11
buildroot-external/rootfs-overlay/usr/lib/systemd/system/haos-mglru.service Normal file
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[Unit]
Description=Configure multigenerational LRU
ConditionPathExists=/sys/kernel/mm/lru_gen/enabled
[Service]
Type=oneshot
ExecStart=/bin/sh -c "echo 1 > /sys/kernel/mm/lru_gen/min_ttl_ms"
[Install]
WantedBy=basic.target