Re: [PATCH 00/23] per device dirty throttling -v8

[Bill Davidsen]

Andi Kleen wrote:
> richard kennedy <richard@xxxxxxxxxxxxxxx> writes:
> > This is on a standard desktop machine so there are lots of other
> > processes running on it, and although there is a degree of variability
> > in the numbers,they are very repeatable and your patch always out
> > performs the stock mm2.
> > looks good to me
>
> iirc the goal of this is less to get better performance, but to avoid long user visible
> latencies.  Of course if it's faster it's great too, but that's only secondary.
What a trade-off, if you want to get rid of long latency you have to 
live with better throughput. I can live with that. ;-)

Your point well taken, not the intent of the patch, but it may indicate 
where a performance bottleneck happens as well.

--
Bill Davidsen <davidsen@xxxxxxx>
  "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot
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