On Sat, 14 Oct 2006 11:07:37 -0700 (PDT), Open Source <[EMAIL PROTECTED]> wrote:

> 4) The process "sleeps" to wait for the disk.
> (No other processes are running so only the idle loop
> is running at this point.)
> 5) An interrupt triggers back from the disk.
> 6) The process wakes up.
> 
> Now if #6 didn't happen immediately, such user operations
> would slow appreciably as CONFIG_HZ is reduced.
> Maybe I misspoke by saying the "scheduler" runs for #6
> to wake up.  I don't know the internals of the wait queue
> infrastructure.  But whatever it is, it has to wake up
> immediately.

It does wake up immediately if no other processes are running.
Wolfgang simply forgot to mention that. The idle loop checks
->need_resched (or other equivalent mechanism in modern kernels).

-- Pete

P.S. I can understand that you want to hide, but at least get
a decent mailer which keeps references.

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