Massive Latency, and no PCI port Acer

I am not computer savy... I have an Acer Aspire X AXC-605-UB1F I thought would make for a good computer with a small package and potentially more modern and better performance then my other spare desktops. After initial install of Mint 19.3 Mate and LinuxCNC using the forum post I ran a latency and it was 12MS. I have some other video cards but the current Intel HD Graphics card is internal to the mother board? That leads me to the computer only having a PCIe and PCIe 16x(I thought was PCI) ports available, not giving me many options for mesa cards. Should I look for another computer? I have been using an HP EliteBook 8470p Laptop running debian and 2.7 I installed in 2018 and dock with parallel port but running external monitor and keyboard bumped the latency up above 50k.

uname: extra operand `-'
Try `uname --help' for more information.

Linux riversvic-Aspire-XC-605 5.4.0-0.bpo.4-rt-amd64 #1 SMP PREEMPT_RT Debian 5.4.19-1~bpo10+1 (2020-03-09) x86_64 x86_64 x86_64 GNU/Linux

I'm struggling to get to the grub menu

I was able to get into the Grub Menu by changing some boot options and hitting esc on reboot. latency is down but still in the 9m. I dont think there is anything else to disable in the BIOS

Kindly post the result of:

see the line with "GRUB_CMDLINE_LINUX_DEFAULT". You could try setting some or all of the following options:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_idle.max_cstate=0 processor.max_cstate=1 idle=poll isolcpus=x";

for "x" see wiki.altervista.org/cs/kernel_boot_parameters

If you use my script here and post the results, more details about the pc will be available.

hth

greez
chris

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"