diff options
Diffstat (limited to 'mm/Kconfig')
-rw-r--r-- | mm/Kconfig | 40 |
1 files changed, 33 insertions, 7 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index 0331f1461f81..57e1d8c5b505 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -23,7 +23,7 @@ menuconfig SWAP in your computer. If unsure say Y. config ZSWAP - bool "Compressed cache for swap pages (EXPERIMENTAL)" + bool "Compressed cache for swap pages" depends on SWAP select FRONTSWAP select CRYPTO @@ -36,12 +36,6 @@ config ZSWAP in the case where decompressing from RAM is faster than swap device reads, can also improve workload performance. - This is marked experimental because it is a new feature (as of - v3.11) that interacts heavily with memory reclaim. While these - interactions don't cause any known issues on simple memory setups, - they have not be fully explored on the large set of potential - configurations and workloads that exist. - config ZSWAP_DEFAULT_ON bool "Enable the compressed cache for swap pages by default" depends on ZSWAP @@ -579,6 +573,12 @@ config COMPACTION it and then we would be really interested to hear about that at linux-mm@kvack.org. +config COMPACT_UNEVICTABLE_DEFAULT + int + depends on COMPACTION + default 0 if PREEMPT_RT + default 1 + # # support for free page reporting config PAGE_REPORTING @@ -1124,6 +1124,32 @@ config PTE_MARKER_UFFD_WP purposes. It is required to enable userfaultfd write protection on file-backed memory types like shmem and hugetlbfs. +# multi-gen LRU { +config LRU_GEN + bool "Multi-Gen LRU" + depends on MMU + # make sure folio->flags has enough spare bits + depends on 64BIT || !SPARSEMEM || SPARSEMEM_VMEMMAP + help + A high performance LRU implementation to overcommit memory. See + Documentation/admin-guide/mm/multigen_lru.rst for details. + +config LRU_GEN_ENABLED + bool "Enable by default" + depends on LRU_GEN + help + This option enables the multi-gen LRU by default. + +config LRU_GEN_STATS + bool "Full stats for debugging" + depends on LRU_GEN + help + Do not enable this option unless you plan to look at historical stats + from evicted generations for debugging purpose. + + This option has a per-memcg and per-node memory overhead. +# } + source "mm/damon/Kconfig" endmenu |