Re: [PATCH V2 -tip] lib,x86_64: improve the performance of memcpy()for unaligned copy

[Miao Xie]

On Wed, 13 Oct 2010 14:31:47 -0700, H. Peter Anvin wrote:
> On 10/08/2010 02:02 AM, Miao Xie wrote:
> > On Fri, 8 Oct 2010 15:42:45 +0800, Ma, Ling wrote:
> > > Could you please give us full address for each comparison result,we will do some tests on my machine.
> > > For unaligned cases older cpus will crossing cache line and slow down caused by load and store, but for nhm, no necessary to care about it.
> > > By the way in kernel 64bit mode, our access mode should be around 8byte aligned.
> >
> > Would you need my benchmark tool? I think it is helpful for your test.
>
> If you could post the benchmark tool that would be great.

The following is the URL of the benchmark tool that I have posted.
  http://marc.info/?l=linux-kernel&m=128652854608425&q=p3

Thanks
Miao
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/