| commit | 121e213eabad66c0453904d76e3eda193958acbd | [log] [tgz] |
|---|---|---|
| author | Dave Chinner <dchinner@redhat.com> | Fri Jan 08 11:28:35 2016 +1100 |
| committer | Dave Chinner <david@fromorbit.com> | Fri Jan 08 11:28:35 2016 +1100 |
| tree | 2b7980ced4dcca8ccbb599544271ab716029447c | |
| parent | a841b64df29b4c7e68ce564d752dfb2042db5404 [diff] |
xfs: add tracepoints to readpage calls This allows us to see page cache driven readahead in action as it passes through XFS. This helps to understand buffered read throughput problems such as readahead IO IO sizes being too small for the underlying device to reach max throughput. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>