On Tue, 12 Sep 2000, Andrea Arcangeli wrote:
> On Tue, 12 Sep 2000, Rik van Riel wrote:
>
> >We simply keep track of how old the oldest request
> >in the queue is, and when that request is getting
> >too old (say 1/2 second), we /stop/ all the others
>
> Going in function of time is obviously wrong. A blockdevice can
> write 1 request every two seconds or 1 request every msecond.
> You can't assume anything in function of time _unless_ you have
> per harddisk timing informations into the kernel.
Uhmmm, isn't the elevator about request /latency/ ?
And if so, in what unit do you want to measure
latency if it isn't time?
regards,
Rik
--
"What you're running that piece of shit Gnome?!?!"
-- Miguel de Icaza, UKUUG 2000
http://www.conectiva.com/ http://www.surriel.com/
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Sep 15 2000 - 21:00:17 EST