| commit | 050b4142c9f3cb3a213f254bd1a1fa1476800585 | |
| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | |
| Thu, 19 Nov 2009 13:24:48 +0000 (19 22:24 +0900) | ||
| committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | |
| Fri, 20 Nov 2009 01:05:51 +0000 (20 10:05 +0900) | ||
| tree | e9c128ab00463ca903edf15457fd76a4df7911d7 | treesnapshot (tar.gz zip) |
| parent | f021759d74d71bacc73fc3e00d6e3d35e1f2e123 | commitdiff |
nilfs2: apply readahead for recovery on mount
This inserts readahead in the recovery code. The readahead request is
issued per segment while searching the latest super root block.
This will shorten mount time after unclean unmount. A measurement
shows the recovery time was reduced by more than 60 percent:
e.g. real 0m11.586s -> 0m3.918s (x 2.96)
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
This inserts readahead in the recovery code. The readahead request is
issued per segment while searching the latest super root block.
This will shorten mount time after unclean unmount. A measurement
shows the recovery time was reduced by more than 60 percent:
e.g. real 0m11.586s -> 0m3.918s (x 2.96)
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
| fs/nilfs2/recovery.c | diffblobblamehistory |