I just did the latency test on a Fitlet3 after making some changes to the BIOS and running the script from
Code:
LinuxCNC pc tests, version 20200930, started 28.05.2025 09:37:54
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General info:
Compulab, fitlet3
Bios version FLT3.TPM.00.09, dated 06/08/2024
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 Atom(R) x6425E Processor @ 2.00GHz
cpu cores : 4
stepping : 1
cache size : 4096 KB
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RAM related data:
Maximum Capacity: 16 GB
Maximum Voltage: 1.2 V
Size: 8 GB
Non-Volatile Size: None
Volatile Size: 8 GB
Cache Size: None
Logical Size: None
Size: No Module Installed
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GPU related data:
product: Elkhart Lake [UHD Graphics Gen11 32EU]
configuration: depth=32 driver=i915 latency=0 mode=1920x1200 resolution=1920,1200 visual=truecolor xres=1920 yres=1200
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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 12 (bookworm)"
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 : lightdm
Windowmanager : Xfwm4
Displaymanager : lightdm
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Kernel related data:
Kernel 6.1.0-35-rt-amd64
GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_idle.max_cstate=0 idle=poll isolcpus=3 nohz_full=3 rcu_nocbs=3 i915.enable_rc6=0"
Cpu idle driver: none
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Kernel modules data:
Check if pcspkr is loaded: No, which is good!
Check if snd modules are loaded: No, which is good!
================================================================================
Keyboard & Mouse related data:
Number of mice: 1
Mouse 0 : Logitech Trackball
Mice attached to USB:
Keyboards attached to USB:
Logitech, Inc. Keyboard K120
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LinuxCNC related data:
LinuxCNC version is: 2.9.4
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Preparing for latency test:
Started glxgears No. 1, 2, 3, 4, 5
..........
Started firefox with 'https://vimeo.com/150574260', WID
================================================================================
Command for latency test is:
su johan -c "latency-histogram --nobase --sbinsize 1000 --nox 2>&1 | tee -a 1748417872.lat &"
Latency testing loop started Wed May 28 09:38:08 AM CEST 2025,
should end after Wed May 28 11:38:08 AM CEST 2025
Manual termination requested at 28.05.2025 09:54:18
================================================================================
Swap useage: prerun: 0, running: 0
================================================================================
CPU core temperatures:
Core 0: Tmin: 53.0°C, Tmax: 61.0°C, (high = +105.0°C, crit = +105.0°C)
Core 1: Tmin: 53.0°C, Tmax: 61.0°C, (high = +105.0°C, crit = +105.0°C)
Core 2: Tmin: 52.0°C, Tmax: 61.0°C, (high = +105.0°C, crit = +105.0°C)
Core 3: Tmin: 52.0°C, Tmax: 61.0°C, (high = +105.0°C, crit = +105.0°C)
================================================================================
last latency data is as follows:.
Code:
^C
Stand by and let me stop gracefully...
Manual termination requested at 28.05.2025 09:54:18
970 s servo min:-409.600 us max: 404.900 us sdev: 15.700 us
971 s servo min:-409.600 us max: 404.900 us sdev: 15.700 us
Core 0: +59.0°C (high = +105.0°C, crit = +105.0°C)
Core 1: +59.0°C (high = +105.0°C, crit = +105.0°C)
Core 2: +59.0°C (high = +105.0°C, crit = +105.0°C)
Core 3: +59.0°C (high = +105.0°C, crit = +105.0°C)
Cleaning up
terminated latency-test ...
...........
Closing browser firefox with WID of
There are no windows in the stack
Invalid window '%1'
Usage: windowactivate [options] [window=%1]
--sync - only exit once the window is active (is visible + active)
If no window is given, %1 is used. See WINDOW STACK in xdotool(1)
Done.
..........
================================================================================
Swap useage: prerun: 0, running: 0
================================================================================
CPU core temperatures:
Core 0: Tmin: 53.0°C, Tmax: 61.0°C, (high = +105.0°C, crit = +105.0°C)
Core 1: Tmin: 53.0°C, Tmax: 61.0°C, (high = +105.0°C, crit = +105.0°C)
Core 2: Tmin: 52.0°C, Tmax: 61.0°C, (high = +105.0°C, crit = +105.0°C)
Core 3: Tmin: 52.0°C, Tmax: 61.0°C, (high = +105.0°C, crit = +105.0°C)
================================================================================
last latency data is as follows:.
Hardware info is logged here: 1748417872.hw.
Full latency-test data is logged here: 1748417872.lat.
Kindly place the contents of "1748417872.hw" here:
https://forum.linuxcnc.org/18-computer/39371-results-of-latency-test-list-of-computers-tested-for-use-with-linuxcnc
Thanks, and good bye.
Topic Author
