Hi,
Is it worthy to introduce a unified co-scheduling mechanism to CFS ?
Because multiple cooperating threads or tasks frequently synchronize
with each other,
not executing them concurrently would only increase the latency of
synchronization.
For example, a thread blocking in spinlock to waiting for another thread
to release the same spinlock
might reduce its waiting time by being executed concurrently with the
thread which hold the same spinlock.
In virtualization scenario, multiple vcpus (which belong to the same vm)
co-scheduling is more desired
when several cooperating threads/task is running in guest.
Is there a plane for this work?
Thanks,
Zhang Haoyu
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