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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 2eccddffa6c8..393541be1ec0 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 |