diff options
| author | Wu Fengguang <[email protected]> | 2011-12-03 21:26:01 -0600 |
|---|---|---|
| committer | Wu Fengguang <[email protected]> | 2011-12-18 14:20:31 +0800 |
| commit | 82791940545be38810dfd5e03ee701e749f04aab (patch) | |
| tree | 427e4b1f535dfa483de6b71d1f59c13fd07a0ff9 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 5b9b357435a51ff14835c06d8b00765a4c68f313 (diff) | |
writeback: do strict bdi dirty_exceeded
This helps to reduce dirty throttling polls and hence CPU overheads.
bdi->dirty_exceeded typically only helps when suddenly starting 100+
dd's on a disk, in which case the dd's may need to poll
balance_dirty_pages() earlier than tsk->nr_dirtied_pause.
CC: Jan Kara <[email protected]>
CC: Peter Zijlstra <[email protected]>
Signed-off-by: Wu Fengguang <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions