Messages in this thread | | | Date | Thu, 7 Apr 2016 15:10:17 +0100 | From | One Thousand Gnomes <> | Subject | Re: [PATCH v2 10/30] Add x86-specific parity functions |
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On Wed, 06 Apr 2016 12:45:27 -0700 Andi Kleen <andi@firstfloor.org> wrote:
> zengzhaoxiu@163.com writes: > > > From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com> > > > > Use alternatives, lifted from arch_hweight > > Is there actually anything performance critical in the kernel that uses > parity?
On very low end devices some of the flash, but the implementation here is ironically pretty much worst-case for such x86 devices 8)
Alan
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