Re: [PATCH] KVM:make cpuid_entry2_find more efficient
From: Borislav Petkov
Date: Tue Aug 09 2022 - 03:55:22 EST
On Tue, Aug 09, 2022 at 01:51:38PM +0800, Liam Ni wrote:
> Compared with the way of obtaining the pointer by
> fetching the value of the array and then fetching the pointer,
> the way of obtaining the pointer by the pointer offset is more efficient.
How did you determine that?
Hint: look at the generated assembler before and after your change and
see if there are any differences.
:-)
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette