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Diffstat (limited to 'target/linux/generic/backport-5.15/020-v6.1-09-mm-multigenerational-lru-Kconfig.patch')
| -rw-r--r-- | target/linux/generic/backport-5.15/020-v6.1-09-mm-multigenerational-lru-Kconfig.patch | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/target/linux/generic/backport-5.15/020-v6.1-09-mm-multigenerational-lru-Kconfig.patch b/target/linux/generic/backport-5.15/020-v6.1-09-mm-multigenerational-lru-Kconfig.patch deleted file mode 100644 index 4462549f99..0000000000 --- a/target/linux/generic/backport-5.15/020-v6.1-09-mm-multigenerational-lru-Kconfig.patch +++ /dev/null @@ -1,80 +0,0 @@ -From 3008095eb835d207dd7e5b60899aad17f32aa9f7 Mon Sep 17 00:00:00 2001 -From: Yu Zhao <yuzhao@google.com> -Date: Mon, 25 Jan 2021 21:47:24 -0700 -Subject: [PATCH 09/10] mm: multigenerational lru: Kconfig - -Add configuration options for the multigenerational lru. - -Signed-off-by: Yu Zhao <yuzhao@google.com> -Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru> -Change-Id: Ic74ea07f8fb5f56e6904a1b80c3c286bc2911635 ---- - mm/Kconfig | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ - 1 file changed, 59 insertions(+) - ---- a/mm/Kconfig -+++ b/mm/Kconfig -@@ -899,4 +899,63 @@ config SECRETMEM - - source "mm/damon/Kconfig" - -+# the multigenerational lru { -+config LRU_GEN -+ bool "Multigenerational LRU" -+ depends on MMU -+ # the following options may leave not enough spare bits in page->flags -+ depends on !MAXSMP && (64BIT || !SPARSEMEM || SPARSEMEM_VMEMMAP) -+ help -+ A high performance LRU implementation to heavily overcommit workloads -+ that are not IO bound. See Documentation/vm/multigen_lru.rst for -+ details. -+ -+ Warning: do not enable this option unless you plan to use it because -+ it introduces a small per-process and per-memcg and per-node memory -+ overhead. -+ -+config LRU_GEN_ENABLED -+ bool "Turn on by default" -+ depends on LRU_GEN -+ help -+ The default value of /sys/kernel/mm/lru_gen/enabled is 0. This option -+ changes it to 1. -+ -+ Warning: the default value is the fast path. See -+ Documentation/static-keys.txt for details. -+ -+config LRU_GEN_STATS -+ bool "Full stats for debugging" -+ depends on LRU_GEN -+ help -+ This option keeps full stats for each generation, which can be read -+ from /sys/kernel/debug/lru_gen_full. -+ -+ Warning: do not enable this option unless you plan to use it because -+ it introduces an additional small per-process and per-memcg and -+ per-node memory overhead. -+ -+config NR_LRU_GENS -+ int "Max number of generations" -+ depends on LRU_GEN -+ range 4 31 -+ default 7 -+ help -+ This will use order_base_2(N+1) spare bits from page flags. -+ -+ Warning: do not use numbers larger than necessary because each -+ generation introduces a small per-node and per-memcg memory overhead. -+ -+config TIERS_PER_GEN -+ int "Number of tiers per generation" -+ depends on LRU_GEN -+ range 2 5 -+ default 4 -+ help -+ This will use N-2 spare bits from page flags. -+ -+ Larger values generally offer better protection to active pages under -+ heavy buffered I/O workloads. -+# } -+ - endmenu |