Re: stochastic fair queueing in the elevator [Re: [BENCHMARK] 2.4.20-ck3 / aa / rmap with contest]

Pavel Machek (pavel@suse.cz)
Mon, 10 Feb 2003 17:23:02 +0100


Hi!

> The design I proposed is to have multiple I/O queues, where to apply the
> elevator, and to choose the queue in function of the task->pid that is
> sumbitting the bh/bio. You'll have to apply an hash to the pid and
> you

Well, if you want *fair* scheduler, as in "fair between users", I
guess you should base it on task->uid.

That should solve your dbench problems, too, as you are very unlikely
to see two tasks working over same data with different uids.

Pavel

-- 
Worst form of spam? Adding advertisment signatures ala sourceforge.net.
What goes next? Inserting advertisment *into* email?
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/