Re: Optimized kernel memcpy/memset

On Thu, 5 May 2011, Christian Robottom Reis wrote:

Hey there,

I was asked today in the board meeting about the use of NEON

routines in the kernel; I said we had looked into this but hadn't done it because a) it wasn't conclusively better and b) if better, it would need to be done conditionally per-platform. But I wanted to double-check that's actually true (and I'm copying Vijay to keep me honest).

Please see my previous answer.

Incidentally, this ties into the question sent earlier this week which had to do with Nico's work item in:

https://blueprints.launchpad.net/linux-linaro/+spec/other-kernel-thumb2

Which IIRC Nico says probably isn't worth it, right?

Thumb2 and Neon are orthogonal.

Nicolas