3f688a8c38
The cv_timedwait() function by definition must wait unconditionally for cv_signal()/cv_broadcast() before waking. This causes processes to go in the D state which increases the load average. The load average is the summation of processes in D state and run queue. To avoid this it can be desirable to sleep interruptibly. These processes do not count against the load average but may be woken by a signal. It is up to the caller to determine why the process was woken it may be for one of three reasons. 1) cv_signal()/cv_broadcast() 2) the timeout expired 3) a signal was received Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> |
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