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| author | Dave Chinner <[email protected]> | 2016-01-08 11:28:35 +1100 |
|---|---|---|
| committer | Dave Chinner <[email protected]> | 2016-01-08 11:28:35 +1100 |
| commit | 121e213eabad66c0453904d76e3eda193958acbd (patch) | |
| tree | 2b7980ced4dcca8ccbb599544271ab716029447c /tools/perf/scripts/python/failed-syscalls-by-pid.py | |
| 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 <[email protected]>
Reviewed-by: Brian Foster <[email protected]>
Signed-off-by: Dave Chinner <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/failed-syscalls-by-pid.py')
0 files changed, 0 insertions, 0 deletions