On Tue, Jul 21, 2015 at 09:39:23PM -0700, Andy Lutomirski wrote:
> So your shiny perf profile shows cumulative time in whatever called
> them. Sure, this is arguably silly if we're stuck with frame
> pointers.
You can count 20ish cycles tops for any one of them.
At least that was from the last time when comparing POPCNT perf to the
__sw_hweight* ones. IOW, POPCNT didn't show any improvement vs those sw
versions.
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
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