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Diffstat (limited to 'Documentation/blockdev/zram.txt')
| -rw-r--r-- | Documentation/blockdev/zram.txt | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Documentation/blockdev/zram.txt b/Documentation/blockdev/zram.txt index 7055bab..986b923 100644 --- a/Documentation/blockdev/zram.txt +++ b/Documentation/blockdev/zram.txt @@ -39,10 +39,11 @@ Note: In order to enable compression backend's multi stream support max_comp_streams must be initially set to desired concurrency level before ZRAM device initialisation. Once the device initialised as a single stream compression -backend (max_comp_streams equals to 0) changing the value of max_comp_streams -will not take any effect, because single stream compression backend implemented -as a special case and does not support dynamic max_comp_streams. Only multi -stream backend supports dynamic max_comp_streams adjustment. +backend (max_comp_streams equals to 1), you will see error if you try to change +the value of max_comp_streams because single stream compression backend +implemented as a special case by lock overhead issue and does not support +dynamic max_comp_streams. Only multi stream backend supports dynamic +max_comp_streams adjustment. 3) Select compression algorithm Using comp_algorithm device attribute one can see available and |