[PATCH] D46884: [AArch64] Cortex-A55 scheduler model

[Javed Absar via Phabricator via llvm-commits]

javed.absar added a comment.

In https://reviews.llvm.org/D46884#1114213, @flyingforyou wrote:

> When I tried to test this patch, it showed some improvements on several benchmarks like Spec2000/2006.
>  But other benchmarks like dhrystone, commercial benchmark's sub workloads show performance degradation.
>
> We need to improve this scheduler model & I would be happy to test updated patch.
>
> Thanks.


Good to hear of the improvements in SPEC numbers.

Could you please provide some more information, if possible, on the possible source of regressions (i.e. where cycles were lost). Are the commercial benchmarks - memory intensive? floating-point intensive? control dominant.


https://reviews.llvm.org/D46884