pthread_workqueue(3) on Linux
The text 189d6edb9708, as Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it. The page shows this text now.
thread workqueue operations pthread_workqueue_attr_init_np, pthread_workqueue_attr_destroy_np, pthread_workqueue_attr_getovercommit_np, pthread_workqueue_attr_setovercommit_np, pthread_workqueue_attr_getqueuepriority_np, pthread_workqueue_attr_setqueuepriority_np – thread workqueue attribute operations