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author | Johannes Weiner <hannes@cmpxchg.org> | 2020-06-03 16:02:37 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-03 20:09:48 -0700 |
commit | c843966c556d7370bb32e7319a6d164cb8c70ae2 (patch) | |
tree | 060e5e8cb49d2ee8bdde87836390b115ee87692d /tools/pcmcia | |
parent | 497a6c1b09902b22ceccc0f25ba4dd623e1ddb7d (diff) | |
download | linux-stable-c843966c556d7370bb32e7319a6d164cb8c70ae2.tar.gz linux-stable-c843966c556d7370bb32e7319a6d164cb8c70ae2.tar.bz2 linux-stable-c843966c556d7370bb32e7319a6d164cb8c70ae2.zip |
mm: allow swappiness that prefers reclaiming anon over the file workingset
With the advent of fast random IO devices (SSDs, PMEM) and in-memory swap
devices such as zswap, it's possible for swap to be much faster than
filesystems, and for swapping to be preferable over thrashing filesystem
caches.
Allow setting swappiness - which defines the rough relative IO cost of
cache misses between page cache and swap-backed pages - to reflect such
situations by making the swap-preferred range configurable.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@surriel.com>
Link: http://lkml.kernel.org/r/20200520232525.798933-4-hannes@cmpxchg.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/pcmcia')
0 files changed, 0 insertions, 0 deletions