On Tue, 18 Jun 2002 18:45:55 -0400, Stevie O wrote:
>At 11:00 AM 6/18/2002 -0700, David Schwartz wrote:
>>This is the same error repeated again. Since you realize that an endless
>>loop on sched_yield is *not* equivalent to blocking, why do you then say
>>"in
>>fact doing useful work"? By what form of ESP is the kernel supposed to
>>determine that the sched_yield task is not 'doing useful work' and the
>>other
>>task is?
>By this form of ESP: sched_yield() means "I have nothing better to do right
>now, give my time to someone who does". If a thread is doing useful work,
>why would it call sched_yield() ?!?
To give other threads a chance to do useful work too, perhaps because it
just released a mutex that other threads might need that it held for an
unusually long time.
DS
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This archive was generated by hypermail 2b29 : Sun Jun 23 2002 - 22:00:23 EST