On Friday, 10 August 2007 07:19, jidong xiao wrote:
> if one thread set its current->flag with PF_NOFREEZE, then it means
> this thread is unfreezable,does this mean, when the system entered
> into a suspended state, even though all the other threads have already
> gone sleep, this thread still keeps awaken?
It will be able to run when all freezable threads are frozen.
> One thing I am very confused is, if all the other threads goes to
> sleep,can this only one thread(assume only one thread marked itself as
> unfreezable.) still works well?
The question is rather theoretical, because there are some unfreezable threads
in the system. In theory, such a thread can work well as long as it doesn't
need to wait for another thread that is frozen.
Greetings,
Rafael
--
"Premature optimization is the root of all evil." - Donald Knuth
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