Manfred Spraul writes:
> process 2 (on cpu 1)
> read(fd,buf,64kB).
> * reads the data
> * now it must wake up, but it will return from the syscall, thus
> wake_up_interruptible().
Oh, I see and thus the pre-kiovec case would be:
process 2 (on cpu 1)
read(fd, buf,64kb
"David S. Miller" wrote:
>
> Manfred Spraul writes:
> > * if you run 2 instances on a dual cpu P II/350 it's a big win, but if
> > you run only one instance, then the bw_pipe processes will jump from one
> > cpu to the other and it's only a small improvement (~+15%).
>
> wake_up_interruptible
Manfred Spraul writes:
> * if you run 2 instances on a dual cpu P II/350 it's a big win, but if
> you run only one instance, then the bw_pipe processes will jump from one
> cpu to the other and it's only a small improvement (~+15%).
wake_up_interruptible_sync is meant specifically to avoid
th
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