diff options
Diffstat (limited to 'Documentation/btrfs-balance.asciidoc')
-rw-r--r-- | Documentation/btrfs-balance.asciidoc | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/Documentation/btrfs-balance.asciidoc b/Documentation/btrfs-balance.asciidoc index fba55140..cc81de91 100644 --- a/Documentation/btrfs-balance.asciidoc +++ b/Documentation/btrfs-balance.asciidoc @@ -45,29 +45,27 @@ COMPATIBILITY NOTE: The balance subcommand also exists under the *btrfs filesystem* namespace. This still works for backward compatibility but is deprecated and -should not be used anymore. +should not be used any more. NOTE: A short syntax *btrfs balance <path>* works due to backward compatibility -but is deprecated and should not be used anymore. Use *btrfs balance start* +but is deprecated and should not be used any more. Use *btrfs balance start* command instead. PERFORMANCE IMPLICATIONS ------------------------ -Balance operation is intense namely in the IO respect, but can be also CPU -intense. It affects other actions on the filesystem. There are typically lots -of data being copied from one location to another, and lots of metadata get -updated. +Balancing operations are very IO intensive and can also be quite CPU intensive, +impacting other ongoing filesystem operations. Typically large amounts of data +are copied from one location to another, with corresponding metadata updates. -Depending on the actual block group layout, it can be also seek-heavy. The -performance on rotational devices is noticeably worse than on SSDs or fast -arrays. +Depending upon the block group layout, it can also be seek heavy. Performance +on rotational devices is noticeably worse compared to SSDs or fast arrays. SUBCOMMAND ---------- *cancel* <path>:: -cancel running or paused balance, the command will block and wait until the -actually processed blockgroup is finished +cancels a running or paused balance, the command will block and wait until the +current blockgroup being processed completes *pause* <path>:: pause running balance operation, this will store the state of the balance |