[PATCH] aarch64:Modify the copy_long function in the SVE memcpy implementation for 32-byte aligned access

Wilco Dijkstra Wilco.Dijkstra@arm.com
Fri Sep 5 12:51:18 GMT 2025


Hi longwei,

Does Kunpeng support SVE? If not, it seems odd to modify the SVE memcpy...
Did you run the GLIBC benchtests to verify it shows a speedup on your system?
Especially bench-malloc-random and bench-malloc-large.

Btw is this related to https://sourceware.org/bugzilla/show_bug.cgi?id=27437#c10 ?
As suggested, I would first benchmark the existing memcpy/memset implementations
and select the one that works best for you.

Cheers,
Wilco


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