On Mon, 20 Dec 2021 15:03:43 -0800 Jakub Kicinski wrote:
> On Tue, 7 Dec 2021 21:29:07 -0800 Jakub Kicinski wrote:
> > On Wed, 8 Dec 2021 15:40:37 +1100 Herbert Xu wrote:
> > > There is no such thing as an alignment requirement. If an algorithm
> > > specifies an alignment and you pass it a request which is unaligned,
> > > the Crypto API will automatically align the data for you.
> > >
> > > So what is the actual problem here?
> >
> > By align you mean copy right? I'm trying to avoid the copy.
>
> Hm, I'm benchmarking things now and it appears to be a regression
> introduced somewhere around 5.11 / 5.12. I don't see the memcpy
> eating 20% of performance on 5.10. Bisection time.
83c83e658863 ("crypto: aesni - refactor scatterlist processing")
is what introduced the regression.
