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Re: [Xen-devel] early_cpu_init() and identify_cpu()

On 16/7/07 09:18, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:

>> How much faster is scrolling of WC framebuffer on your test system?
> 
> That's a win of about 30%, and using movsq in memcpy() is another win of
> about 50%. Will probably create a vidmemmove()...

That still totally sucks then. Paging a full screen of text of, say 60
lines, done line-by-line will still take, say 60*300ms == 20 seconds(ish).

Implement this as a command-line option only if you must have it.

 -- Keir


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