RE: [PATCH v9 0/2] mmc: support packed command feature of eMMC4.5

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On Tuesday, February 12, 2013, Arnd Bergmann wrote:
> On Monday 11 February 2013, Chris Ball wrote:
> > On Wed, Feb 06 2013, Seungwon Jeon wrote:
> > > This patch-set adds support of packed command feature for eMMC4.5 devices.
> > > Specially, packed write is introduced.
> >
> > Thanks, I've pushed this to mmc-next for 3.9 now.
> >
> > It would be great to see benchmarks for the effect on average write
> > latency, instead of just throughput, though.
> 
> Yes, I agree absolutely. In the end, it's always the latency that
> matters for user experience not the maximum throughput.
I didn't see a significant difference in random I/O.
Write packing completely depends on seamless I/O from block layer.
As size of media contents is bigger, enhanced write is required in some user scenarios.
I guess write throughput is important factor cannot be easily ignored.

Thanks,
Seungwon Jeon
> 
> 	Arnd
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