diff options
| author | Tejun Heo <[email protected]> | 2023-05-17 17:02:08 -1000 |
|---|---|---|
| committer | Tejun Heo <[email protected]> | 2023-05-17 17:02:08 -1000 |
| commit | 725e8ec59c56c65fb92e343c10a8842cd0d4f194 (patch) | |
| tree | b357ac51c47bdc4c24f87090a0d2191a84419b81 /drivers/fpga/fpga-mgr.c | |
| parent | 854f5cc5b7355ceebf2bdfed97ea8f3c5d47a0c3 (diff) | |
workqueue: Add pwq->stats[] and a monitoring script
Currently, the only way to peer into workqueue operations is through
tracing. While possible, it isn't easy or convenient to monitor
per-workqueue behaviors over time this way. Let's add pwq->stats[] that
track relevant events and a drgn monitoring script -
tools/workqueue/wq_monitor.py.
It's arguable whether this needs to be configurable. However, it currently
only has several counters and the runtime overhead shouldn't be noticeable
given that they're on pwq's which are per-cpu on per-cpu workqueues and
per-numa-node on unbound ones. Let's keep it simple for the time being.
v2: Patch reordered to earlier with fewer fields. Field will be added back
gradually. Help message improved.
Signed-off-by: Tejun Heo <[email protected]>
Cc: Lai Jiangshan <[email protected]>
Diffstat (limited to 'drivers/fpga/fpga-mgr.c')
0 files changed, 0 insertions, 0 deletions