Re: stuck spin lock with many concurrent users

> Yes, it sure is, but remember that the guy getting useful work done
> (DeadLockCheck) is having to share the CPU with 999 other processes
> that are waking up on every clock tick for just long enough to fail
> to get the spinlock. I think it's those useless process wakeups that
> are causing the problem.
>
> If you estimate that a process dispatch cycle is ~ 10 microseconds,
> then waking 999 useless processes every 10 msec is just about enough
> to consume 100% of the CPU doing nothing useful... so what should be
> a few-millisecond check takes a long time, which makes things worse
> because the 999 wannabees are spinning for that much more time.

Don't we back off the sleeps or was that code removed?

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