在 2021/8/24 上午2:36, Hao Xu 写道:
Now we have a lot of task_work users, some are just to complete a req
and generate a cqe. Let's put the work at the head position of the
task_list, so that it can be handled quickly and thus to reduce
avg req latency. an explanatory case:
origin timeline:
submit_sqe-->irq-->add completion task_work
-->run heavy work0~n-->run completion task_work
now timeline:
submit_sqe-->irq-->add completion task_work
-->run completion task_work-->run heavy work0~n
Signed-off-by: Hao Xu <haoxu@xxxxxxxxxxxxxxxxx>
sorry, sent this old version by mistake, will send latest version later.
the latest one is to add high priority task_work to the front of
task_list in the time order, not the reverse order.
