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| -rw-r--r-- | Documentation/core-api/workqueue.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/core-api/workqueue.rst b/Documentation/core-api/workqueue.rst index 16f861c9791e..2b813f80ce39 100644 --- a/Documentation/core-api/workqueue.rst +++ b/Documentation/core-api/workqueue.rst @@ -357,6 +357,11 @@ Guidelines difference in execution characteristics between using a dedicated wq and a system wq. + Note: If something may generate more than @max_active outstanding + work items (do stress test your producers), it may saturate a system + wq and potentially lead to deadlock. It should utilize its own + dedicated workqueue rather than the system wq. + * Unless work items are expected to consume a huge amount of CPU cycles, using a bound wq is usually beneficial due to the increased level of locality in wq operations and work item execution. |