Re: More on 2.2.18pre2aa2

From: Andrea Arcangeli (andrea@suse.de)
Date: Tue Sep 12 2000 - 08:27:59 EST


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.

Andrea

-
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