diff options
| author | Wu Fengguang <[email protected]> | 2011-12-03 00:21:51 +0000 |
|---|---|---|
| committer | Wu Fengguang <[email protected]> | 2011-12-08 02:49:29 +0000 |
| commit | 82e230a07de3812a5e87a27979f033dad59172e3 (patch) | |
| tree | 672ecaa3a1cf3585aa941491b2cf77ae38f1d8ff /fs/proc/array.c | |
| parent | writeback: permit through good bdi even when global dirty exceeded (diff) | |
| download | kernel-82e230a07de3812a5e87a27979f033dad59172e3.tar.gz kernel-82e230a07de3812a5e87a27979f033dad59172e3.zip | |
writeback: set max_pause to lowest value on zero bdi_dirty
Some trace shows lots of bdi_dirty=0 lines where it's actually some
small value if w/o the accounting errors in the per-cpu bdi stats.
In this case the max pause time should really be set to the smallest
(non-zero) value to avoid IO queue underrun and improve throughput.
Signed-off-by: Wu Fengguang <[email protected]>
Diffstat (limited to 'fs/proc/array.c')
0 files changed, 0 insertions, 0 deletions