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authorMinchan Kim <minchan@kernel.org>2020-12-15 06:14:32 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-15 23:13:47 +0300
commit194e28da1a0279ef6a106a5b621fd79c410432ef (patch)
tree5d79dfedf75b7bb9e6eb56d64ec34b0f70564929 /Documentation
parent0d8359620d9be9823b6b9b3cf2dbe006cbfec594 (diff)
downloadlinux-194e28da1a0279ef6a106a5b621fd79c410432ef.tar.xz
zram: add stat to gather incompressible pages since zram set up
Currently, zram supports the stat via /sys/block/zram/mm_stat to represent how many of incompressible pages are stored at the moment but it couldn't show how many times incompressible pages were wrote down since zram set up. It's also good indication to see how zram is effective in the system. Link: https://lkml.kernel.org/r/20201130201907.1284910-1-minchan@kernel.org Signed-off-by: Minchan Kim <minchan@kernel.org> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/admin-guide/blockdev/zram.rst1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/admin-guide/blockdev/zram.rst b/Documentation/admin-guide/blockdev/zram.rst
index 8f3cfa42e443..03f1105b21b7 100644
--- a/Documentation/admin-guide/blockdev/zram.rst
+++ b/Documentation/admin-guide/blockdev/zram.rst
@@ -266,6 +266,7 @@ line of text and contains the following stats separated by whitespace:
No memory is allocated for such pages.
pages_compacted the number of pages freed during compaction
huge_pages the number of incompressible pages
+ huge_pages_since the number of incompressible pages since zram set up
================ =============================================================
File /sys/block/zram<id>/bd_stat