On Mon, Jan 21, 2002 at 05:05:01PM +0100, Daniel Phillips wrote:
> > I think of "benefit", perhaps naiively, in terms of something that can
> > be measured or demonstrated rather than just announced.
>
> But you see why asap scheduling improves latency/throughput *in theory*,
Nope. And I don't even see a relationship between preemption and asap I/O
schedulding. What make you think that I/O threads won't be preempted by
other threads?
> don't you? As for the measured benefit, there have been a steady stream of
> postive reports on lkml.
I have not seen a single well structured benchmark that shows a significant
difference. I've seen lots of benchmarks with odd mixes of different patches
showing something unknown. How about a simple clear dbench?
>My own experience is that the usability of my
> laptop with its small memory is much improved under heavy IO load.
No comment.
-- --------------------------------------------------------- Victor Yodaiken Finite State Machine Labs: The RTLinux Company. www.fsmlabs.com www.rtlinux.com- 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/
This archive was generated by hypermail 2b29 : Wed Jan 23 2002 - 21:00:46 EST