Messages in this thread | | | From | Rob Landley <> | Subject | Re: Question about sched_yield() | Date | Tue, 18 Jun 2002 12:58:09 -0400 |
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On Tuesday 18 June 2002 03:11 pm, David Schwartz wrote:
> I'm sorry, but you are being entirely unreasonable. The kernel has no way > to know which processes are doing something useful and which ones are just > wasting CPU.
So the fact one of them is calling sched_yield (repeatedly) and the other one isn't doesn't count as just a little BIT of a hint?
> What sched_yield is good for is if you encounter a situation where you > need/want some resource and another thread/process has it. You call > sched_yield once, and maybe when you run again, the other thread/process > will have released it.
Not if it was a higher-priority task that has already exhausted its time slice...
> You can also use it as the spin function in > spinlocks.
In user space?
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