CPU performance - disable bug mitigations

[Ralf Mardorf]

On Wed, 21 Nov 2018 08:20:56 +0100, Ralf Mardorf wrote:
>I once tested this for an Intel machine with the microcode for Meltdown
>and Spectre, for an Arch Linux install with the syslinux bootloader.
>
>[rocketmouse at archlinux ~]$ grep -i security /boot/syslinux/syslinux.cfg
>LABEL Securityink
>    MENU LABEL Arch Linux Rt ^Securityink
>    LINUX ../vmlinuz-linux-rt-securityink
>    INITRD ../intel-ucode.img,../initramfs-linux-rt-securityink.img
>LABEL Securityink_no_micro
>    MENU LABEL Arch Linux Rt Securityink no micro
>    LINUX ../vmlinuz-linux-rt-securityink
>    INITRD ../initramfs-linux-rt-securityink.img
>LABEL Securityink_nopti
>    MENU LABEL Arch Linux Rt Securityink nopt^i
>    LINUX ../vmlinuz-linux-rt-securityink
>    INITRD ../intel-ucode.img,../initramfs-linux-rt-securityink.img

Oops! It doesn't really matter, however, just in case all relevant
entries:

[rocketmouse at archlinux ~]$ grep -i security /boot/syslinux/syslinux.cfg -A1
LABEL Securityink
    MENU LABEL Arch Linux Rt ^Securityink
    LINUX ../vmlinuz-linux-rt-securityink
    APPEND root=LABEL=s3.archlinux ro
    INITRD ../intel-ucode.img,../initramfs-linux-rt-securityink.img

LABEL Securityink_no_micro
    MENU LABEL Arch Linux Rt Securityink no micro
    LINUX ../vmlinuz-linux-rt-securityink
    APPEND root=LABEL=s3.archlinux ro
    INITRD ../initramfs-linux-rt-securityink.img

--
LABEL Securityink_nopti
    MENU LABEL Arch Linux Rt Securityink nopt^i
    LINUX ../vmlinuz-linux-rt-securityink
    APPEND root=LABEL=s3.archlinux ro nopti
    INITRD ../intel-ucode.img,../initramfs-linux-rt-securityink.img