[PATCH] KVM: PPC: BOOK3S: book3s_hv_nested.c: improve branch prediction for k.alloc

Bagas Sanjaya bagasdotme at gmail.com
Fri Apr 7 23:46:32 AEST 2023

On Fri, Apr 07, 2023 at 05:31:47AM -0400, Kautuk Consul wrote:
> I used the unlikely() macro on the return values of the k.alloc
> calls and found that it changes the code generation a bit.
> Optimize all return paths of k.alloc calls by improving
> branch prediction on return value of k.alloc.

What about below?

"Improve branch prediction on kmalloc() and kzalloc() call by using
unlikely() macro to optimize their return paths."

That is, try to avoid first-person construct (I).


An old man doll... just what I always wanted! - Clara
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 228 bytes
Desc: not available
URL: <http://lists.ozlabs.org/pipermail/linuxppc-dev/attachments/20230407/daaeba38/attachment.sig>

More information about the Linuxppc-dev mailing list