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| author | Umesh Nerlige Ramappa <[email protected]> | 2023-08-14 15:37:34 -0700 |
|---|---|---|
| committer | Rodrigo Vivi <[email protected]> | 2023-12-21 11:43:10 -0500 |
| commit | 7793d00d1bf5923e77bbe7ace8089bfdfa19dc38 (patch) | |
| tree | 09003f318cccc800014c5621e695d254f8fcb642 /tools/perf/scripts/python | |
| parent | 61d63a59f68c7ab558b020cc675b9f94ef403c5f (diff) | |
drm/xe: Correlate engine and cpu timestamps with better accuracy
Perf measurements rely on CPU and engine timestamps to correlate
events of interest across these time domains. Current mechanisms get
these timestamps separately and the calculated delta between these
timestamps lack enough accuracy.
To improve the accuracy of these time measurements to within a few us,
add a query that returns the engine and cpu timestamps captured as
close to each other as possible.
Mesa MR: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24591
v2:
- Fix kernel-doc warnings (CI)
- Document input params and group them together (Jose)
- s/cs/engine/ (Jose)
- Remove padding in the query (Ashutosh)
Signed-off-by: Umesh Nerlige Ramappa <[email protected]>
Reviewed-by: José Roberto de Souza <[email protected]>
Signed-off-by: Francois Dugast <[email protected]>
Signed-off-by: Rodrigo Vivi <[email protected]>
[Rodrigo finished the s/cs/engine renaming]
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions