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Re: [PATCH 3/4] sparc: Use default memcpy for rtld objects
On 05/10/2017 15:30, David Miller wrote:
> From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
> Date: Thu, 5 Oct 2017 15:12:33 -0300
>
>> One thing I forgot to ask is whether if you have any data points how
>> slow the C implementation would be compared to current default
>> sparc64 memcpy. Because one options would just remove it and use
>> the C as default without providing it as an option.
>
> Well, on actual Ultra1/2/2e/2i chips, it is significantly faster
> than the C implementation.
>
> But in rtld the safest thing to do is use a simple memcpy that works
> on every cpu, regardless of cpu caps.
>
Right, I think we can live with it. I withdrawn both patch 3 and 4
then.