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1 .. SPDX-License-Identifier: GPL-2.0
4 Multi-Gen LRU
6 The multi-gen LRU is an alternative LRU implementation that optimizes
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38 0x0001 The main switch for the multi-gen LRU.
42        disabled, the multi-gen LRU will suffer a minor performance
46 0x0004 Clearing the accessed bit in non-leaf page table entries as
49        disabled, the multi-gen LRU will suffer a negligible
57     echo y >/sys/kernel/mm/lru_gen/enabled
60     echo 5 >/sys/kernel/mm/lru_gen/enabled
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68 experience. The multi-gen LRU offers thrashing prevention to the
77 Based on the average human detectable lag (~100ms), ``N=1000`` usually
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149     ``- memcg_id node_id min_gen_nr [swappiness [nr_to_reclaim]]``
151 ``min_gen_nr`` should be less than ``max_gen_nr-1``, since
152 ``max_gen_nr`` and ``max_gen_nr-1`` are not fully aged (equivalent to
153 the active list) and therefore cannot be evicted. ``swappiness``