Re: CP15 Barrier emulation performance?
I wouldn't take the message too seriously, just Google it:
On 7/5/17, Vagrant Cascadian <firstname.lastname@example.org> wrote:
> Some of the reproducible builds armhf nodes are actually arm64 capable
> machines, running an arm64 kernel build. When haskell related packages
> get built, I get a tremendous number of messages on to the console:
> "ghc" (13126) uses deprecated CP15 Barrier instruction at 0xefadd224
> In the kernel's boot/config-*:
> Does this emulation take a considerable performance hit, as opposed to
> running on armhf hardware/kernel, where the instruction doesn't appear
> to be listed as deprecated?
> Several of the arm64 machines with armhf userland machines seem to
> perform very poorly... I was wondering if this might somehow be part of
> the issue.
> live well,
No, I won't call it "climate change", do you have a "reality problem"? - AB1JX
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