diff options
| author | Sergey Senozhatsky <sergey.senozhatsky@gmail.com> | 2014-04-07 15:38:07 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2016-12-11 13:00:44 +0100 |
| commit | b5c0d4785b093101d128b2b4e61b29a3f8ec4c93 (patch) | |
| tree | ffe54b62c2f375f25391db92f7bd9eb0251ce3fc /Documentation/blockdev | |
| parent | 3d0e97c21296f46b0f2517ec5a0791246fd9c2fa (diff) | |
zram: move zram size warning to documentation
Move zram warning about disksize and size of memory correlation to zram
documentation.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/blockdev')
| -rw-r--r-- | Documentation/blockdev/zram.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/blockdev/zram.txt b/Documentation/blockdev/zram.txt index 2eccddffa..393541be1 100644 --- a/Documentation/blockdev/zram.txt +++ b/Documentation/blockdev/zram.txt @@ -33,6 +33,11 @@ Following shows a typical sequence of steps for using zram. echo 512M > /sys/block/zram0/disksize echo 1G > /sys/block/zram0/disksize +Note: +There is little point creating a zram of greater than twice the size of memory +since we expect a 2:1 compression ratio. Note that zram uses about 0.1% of the +size of the disk when not in use so a huge zram is wasteful. + 3) Activate: mkswap /dev/zram0 swapon /dev/zram0 |