On 04/06/2018 19:12, Richard Henderson wrote:
On 06/04/2018 11:00 AM, Adhemerval Zanella wrote:
Do you plan to adapt them to glibc?
Ramana suggested starting "upstream" in cortex-strings and copying to glibc
from there, as a general work-flow preference. I believe this has been the
case for all of the other aarch64 string routines.
For now, I'm not sure it's useful to copy to glibc until we have hardware
against which we can run make bench -- given that would be the very first thing
any reviewer would ask.
Sorry about getting into this a bit late.
To be honest, I would prefer that we tried to get this into glibc sooner
rather than later.
I don't think the make bench discussion is totally relevant in this
case. We'd like to see what the performance of this stuff is and it's
always goign to be a battle to get things benchmarked perfectly on
hardware and there is unlikely to be one implementation in the Arm world
unlike other architectures. It's under an ifunc and gives folks
something to reason with, if we are really that concerned about it's
performance today lets put it under a tunable that allows us to turn it
off easily ?
regards
Ramana
r~
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