Re: [patch] get_request starvation fix

Andrew Morton (akpm@zip.com.au)
Sat, 16 Feb 2002 02:25:50 -0800


Daniel Phillips wrote:
>
> On February 16, 2002 08:32 am, Andrew Morton wrote:
> > However, contrary to my earlier guess, the request batching does
> > make a measurable difference. Changing the code so that we wake up
> > a sleeper as soon as any request is freed costs maybe 30%
> > on `dbench 64'.
>
> Is this consistent with results on other IO benchmarks?
>

I dunno. I doubt it - few of the other benchmarks are very
seek-intensive. dbench is somewhat repeatable if you load
it up with enough clients. And average the results across
enough runs. And stand on one leg and squint.
-
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/