diff options
| author | Ricardo Neri <[email protected]> | 2023-04-06 13:31:38 -0700 |
|---|---|---|
| committer | Peter Zijlstra <[email protected]> | 2023-05-08 10:58:34 +0200 |
| commit | eefefa716c9fa6aa73159f09954b7eeba4cafd09 (patch) | |
| tree | 136f5121cb6e267b4cc472e48fce0f9e83de0d18 /tools/perf/scripts/python/bin/stackcollapse-report | |
| parent | 8b36d07f1d63de102d464f44a89704bc62d00811 (diff) | |
sched/fair: Only do asym_packing load balancing from fully idle SMT cores
When balancing load between cores, all the SMT siblings of the destination
CPU, if any, must be idle. Otherwise, pulling new tasks degrades the
throughput of the busy SMT siblings. The overall throughput of the system
remains the same.
When balancing load within an SMT core this consideration is not relevant.
Follow the priorities that hardware indicates.
Suggested-by: Valentin Schneider <[email protected]>
Signed-off-by: Ricardo Neri <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Tested-by: Zhang Rui <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-report')
0 files changed, 0 insertions, 0 deletions