Comment # 112 on bug 1112824 from Dead Mozay

(In reply to Nicol�s Luciano B�rtolo from comment #111)
> > disabling patches on the 4.19.7 kernel no longer affects anything, just made
> > several reboots with different patch shutdown options, and without shutting
> > down at all, the result is the same. At the moment, my performance is only
> > affected by disabling hyper-threading.
> 
> This does not match my experience. Using spectre_v2=retpoline makes the
> default kernel perform just as well as the vanilla kernel.
> 
> I'm using kernel 4.19.7-1-default.

Perhaps spectre_v2 = retpoline affects the work with Intel HD graphics, i have
Nvidia with proprietary drivers, for me this option is useless.