Hi Jon,
That's not really a comment on the reorganization of compiler tunes, but
more like "Do they actually do something meaningful?"
I posted here[1] some benchmarks and at least with the benchmarks I
tried on the chips I tried there is no obvious impact.
i.mx6q:
TUNE_FEATURES = "arm armv7a vfp thumb callconvention-hard"
TARGET_FPU = "hard"
vs.
TUNE_FEATURES = "arm vfp cortexa9 neon thumb callconvention-hard"
TARGET_FPU = "hard"
i.m8mm:
TUNE_FEATURES = "aarch64 cortexa53 crc crypto"
TARGET_FPU = ""
vs.
TUNE_FEATURES = "aarch64 armv8a crc crypto"
TARGET_FPU = ""
[1]
https://yoctoproject.blogspot.com/2020/09/compiler-tunes-benchmarks-with-yocto.html
Should we expect so see differences?
If so can you suggest benchmarks which show those differences?
Regards,
Robert
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