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| author |  Minchan Kim <minchan@kernel.org>
| 2020-12-14 19:14:32 -0800 |
|---|---|---|
| committer |  Linus Torvalds <torvalds@linux-foundation.org>
| 2020-12-15 12:13:47 -0800 |
| commit | 194e28da1a0279ef6a106a5b621fd79c410432ef (patch) | |
| tree | 5d79dfedf75b7bb9e6eb56d64ec34b0f70564929 /Documentation/admin-guide/blockdev | |
| parent | zram: support page writeback (diff) | |
| download | linux-194e28da1a0279ef6a106a5b621fd79c410432ef.tar.gz linux-194e28da1a0279ef6a106a5b621fd79c410432ef.tar.bz2 linux-194e28da1a0279ef6a106a5b621fd79c410432ef.zip | |
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/admin-guide/blockdev')
| -rw-r--r-- | Documentation/admin-guide/blockdev/zram.rst | 1 |
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 |