LinuxCNC pc tests, version 20200930, started 12.05.2021 17:21:43
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General info:
BESSTAR Tech,  GK41
Bios version GB7 0.05, dated 03/18/2021
Chipset: Harddisk is non-rotational, ie. SSD
The amount of swap currently used is 0
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CPU related data:
model name	: Intel(R) Celeron(R) J4125 CPU @ 2.00GHz
cpu cores	: 4
stepping	: 8
cache size	: 4096 KB
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RAM related data:
Maximum Capacity: 64 GB
Maximum Voltage: 1.1 V
Maximum Voltage: 1.1 V
Maximum Voltage: Unknown
Maximum Voltage: Unknown
Size: 4096 MB
Non-Volatile Size: None
Volatile Size: 4 GB
Cache Size: None
Logical Size: None
Size: 4096 MB
Non-Volatile Size: None
Volatile Size: 4 GB
Cache Size: None
Logical Size: None
Size: No Module Installed
Non-Volatile Size: None
Volatile Size: None
Cache Size: None
Logical Size: None
Size: No Module Installed
Non-Volatile Size: None
Volatile Size: None
Cache Size: None
Logical Size: None
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GPU related data:
configuration: driver=i915 latency=0
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Parallel port related data:
number of parallel ports is 0
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Os and desktop related data:
PRETTY_NAME="Debian GNU/Linux 10 (buster)"

Should the info below not match with your machine,
kindly post the output of pstree here, including a brief
desciption of your desktop environment, window manager and
display manager. Tia
https://forum.linuxcnc.org/18-computer/39370-script-for-automated-testing-of-computer-latency

Desktop environment : xfce4
Windowmanager       : Xfwm4
Displaymanager      : lightdm
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Kernel related data:
Kernel 4.19.0-11-rt-amd64
GRUB_CMDLINE_LINUX_DEFAULT="quiet"
Cpu idle driver: intel_idle
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Kernel modules data:
Check if pcspkr is loaded: Yes, may cause bigger latency.
  can be eliminated using:
  sudo echo "install pcspkr /bin/true" >/etc/modprobe.d/pcspkr.conf
Check if snd modules are loaded: Yes, may cause bigger latency.
  can probably be disabled in bios, alternatively, you can run
   "./block-snd-modules"
   which has just now been created for your convenience. 
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Keyboard & Mouse related data:
Number of mice: 1
Mouse 0 : Logitech USB Optical Mouse
Mice  attached to USB:
Logitech, Inc. M-U0004 810-001317 [B110 Optical USB Mouse]
Keyboards attached to USB:
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LinuxCNC related data:
LinuxCNC version is: 2.8.1
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Preparing for latency test:
Started glxgears No. 1, 2, 3, 4, 5
..........
Started firefox with 'https://vimeo.com/150574260', WID 52428803
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Command for latency test is:
su cnc -c  "latency-histogram --nobase  --sbinsize 1000 --nox 2>&1 | tee -a 1620832816.lat &"

Latency testing loop started mercredi 12 mai 2021, 17:21:57 (UTC+0200), 
should end after mercredi 12 mai 2021, 19:21:57 (UTC+0200)

Manual termination requested at 12.05.2021 17:40:45 

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Swap useage: prerun: 0, running: 0

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CPU core temperatures:
Core 0: Tmin: 50.0°C, Tmax: 73.0°C, (high = +105.0°C, crit = +105.0°C)
Core 1: Tmin: 50.0°C, Tmax: 73.0°C, (high = +105.0°C, crit = +105.0°C)
Core 2: Tmin: 50.0°C, Tmax: 73.0°C, (high = +105.0°C, crit = +105.0°C)
Core 3: Tmin: 50.0°C, Tmax: 73.0°C, (high = +105.0°C, crit = +105.0°C)
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last latency data is as follows:.
 1130 secs  servo min: -88.200 uS max:  95.500 uS sdev:   3.100 uS
 1131 secs  servo min: -88.200 uS max:  95.500 uS sdev:   3.100 uS