[PATCH] [AArch64] Refines the Cortex-A57 Machine Model

[Jiangning Liu]

Dave,

I'm running benchmark and will let you know the result as soon as I got it.

Thanks,
-Jiangning


2014-09-24 22:47 GMT+08:00 Dave Estes <cestes at codeaurora.org>:

> All,
>
> This new patchset moves the model back to out-of-order yet restricts the
> issue-width to the minimum of the actual issue width and dispatch width as
> Andy suggested. It brought the Spec2000/2006 numbers back up and even
> outperformed the original model by a few percent (geomean). It also
> improved the EEMBC numbers by a percent (geomean). I did see some
> degradation in individual tests, but nothing horrible. It will take some
> more detailed analysis to determine the cause there.
>
> Jiangning,
>
> In the meantime, if you can replicate the performance gain, then I'd like
> to move forward with this review, because the more accurate latency
> information will be key to future analysis and refinements.
>
> Thanks...
> -Dave
>
> http://reviews.llvm.org/D5372
>
>
>

http://reviews.llvm.org/D5372