Re: [PATCH 2/3] x86: mm: Change tlb_flushall_shift for IvyBridge

[Alex Shi]

On 12/16/2013 09:59 PM, Ingo Molnar wrote:
> So if the kbuild speedup of 1-2% is true and reproducable then that 
> might be worth doing.

I have a Intel desktop and need it for daily works. Wonder if Intel guys
like to have a try? I assume the patch is already in Fengguang's testing
system.
> 
> Building the kernel is obviously a prime workload - and given that the 
> kernel is active only about 10% of the time for a typical kernel 
> build, a 1-2% speedup means a 10-20% speedup in kernel performance 
> (which sounds a bit too good at first glance).

Maybe a extra time tlb flush causes more tlb refill that cost much user
space time.
-- 
Thanks
    Alex
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