Maybe you'll prefer the Windows version:

  reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v FeatureSettingsOverride /t REG_DWORD /d 3 /f

  reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v FeatureSettingsOverrideMask /t REG_DWORD /d 3 /f

Absolutely. I was talking to an average joe the other day and he was complaining how hard it was to roll back Spectre, Meltdown, and ZombieLoad mitigations to improve his compilation speed.

The "average joe" shouldn't be doing this.

> That's why average joe doesn't like Linux

Having seen the attempts at making Linux friendly for theoretical frictionless spherical Joes in vacuum, I'd rather just have my 1-2% market share GNU/Linux OS for unix greybeards, warts and all. The friendly GUI shell on top of Linux for average Joes is called Chrome OS and Android.

In 5.2 (next major release) the "mitigations=off" flag should cover it all. Up until recently there wasn't really a need for such a catch-all so it hadn't been made.

You must put it on kernel options, somewhere on grub config files.