Messages in this thread | | | Date | Mon, 13 Sep 1999 16:56:11 +0300 | From | Momchil Velikov <> | Subject | Re: spin_lock and linux philosophy question... |
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Robert Dinse wrote: > > On Mon, 13 Sep 1999, Momchil Velikov wrote: > > > > Spin locks are for cases when it is expected the lock to be held for > > very short intervals, thus saving the sleep/wakeup overhead. For other > > cases there are sleep locks (whatever they are called in each OS), where > > indeed the CPU is sent to do something else. > > > > Regards, > > -velco > > Thank you for the short explanation, and thank you David for the reference > as I really do want to understand these things.
You can also use a spinlock in an interrupt handler, where you can't sleep at all.
Regards, -velco
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