On 11.08.21 16:25, Tom Rini wrote:
On Wed, Aug 11, 2021 at 04:02:39PM +0200, Stefan Roese wrote:
On an NXP LX2160 based platform it has been noticed, that the currently implemented memset/memcpy functions for aarch64 are suboptimal. Especially the memset() for clearing the NXP MC firmware memory is very expensive (time-wise).
By using optimized functions, a speedup of ~ factor 6 has been measured.
To be clear, you re-measured with the cache check code added, and this is the speed up?
I forgot doing this. BTW: I was wrong with factor ~6. From my notices, it is ~ factor 4 using the optimized memset() version.
I'll follow-up on this mail with some measurements for all affected functions, using small and large sizes. Hopefully tomorrow.
Thanks, Stefan