Results of latency test, list of computers tested for use with LinuxCNC

More
17 Oct 2020 21:54 #186392 by tommylight
That is a really good result, but to short to be definitive.

Please Log in or Create an account to join the conversation.

More
17 Oct 2020 23:39 #186419 by M1g13
LinuxCNC pc tests, version 20200930, started 18.10.2020 00:29:08
********************************************************************************
General info:
Gigabyte Technology Co., Ltd.,  B460MD3H
Bios version F2, dated 04/13/2020
Chipset: Harddisk is non-rotational, ie. SSD
The amount of swap currently used is 0
================================================================================
CPU related data:
model name	: Intel(R) Pentium(R) Gold G6400 CPU @ 4.00GHz
cpu cores	: 1
stepping	: 3
cache size	: 4096 KB
================================================================================
RAM related data:
Maximum Capacity: 64 GB
Maximum Voltage: 1.2 V
Maximum Voltage: Unknown
Maximum Voltage: 1.2 V
Maximum Voltage: Unknown
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: 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
================================================================================
GPU related data:
product: Advanced Micro Devices, Inc. [AMD/ATI]
configuration: driver=amdgpu latency=0
================================================================================
Parallel port related data:
number of parallel ports is 0
================================================================================
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
================================================================================
Kernel related data:
Kernel 4.19.0-11-rt-amd64
GRUB_CMDLINE_LINUX_DEFAULT="quiet"
Cpu idle driver: none
================================================================================
Kernel modules data:
Check if pcspkr is loaded: No, which is good!
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. 
================================================================================
Keyboard & Mouse related data:
Number of mice: 2
Mouse 0 : ELMCU iPazzPort Mouse
Mouse 1 : Weida Hi-Tech                CoolTouchR System           
Mice  attached to USB:
Keyboards attached to USB:
================================================================================
LinuxCNC related data:
LinuxCNC version is: 2.8.0
================================================================================
Preparing for latency test:
Started glxgears No. 1, 2, 3, 4, 5
..........
Started firefox with 'https://vimeo.com/150574260', WID 46137347
================================================================================
Command for latency test is:
su bub32 -c  "latency-histogram --nobase  --sbinsize 1000 --nox 2>&1 | tee -a 1602970139.lat &"

Latency testing loop started Вс окт 18 00:29:20 MSK 2020, 
should end after Вс окт 18 02:29:20 MSK 2020

================================================================================
Swap useage: prerun: 0, running: 0

================================================================================
CPU core temperatures:
Core 0: Tmin: 35.0°C, Tmax: 40.0°C, (high = +80.0°C, crit = +100.0°C)
================================================================================
last latency data is as follows:.
 7202 secs  servo min: -10.600 uS max:  12.500 uS sdev:   1.300 uS
 7202 secs  servo min: -10.600 uS max:  12.500 uS sdev:   1.300 uS

Please Log in or Create an account to join the conversation.

More
18 Oct 2020 00:04 #186427 by tommylight
That is a very good result, even for software stepping.

Please Log in or Create an account to join the conversation.

More
18 Oct 2020 03:04 #186437 by seuchato

M1g13 wrote:

LinuxCNC pc tests, version 20200930, started 18.10.2020 00:29:08
********************************************************************************
General info:
Gigabyte Technology Co., Ltd.,  B460MD3H
Bios version F2, dated 04/13/2020
Chipset: Harddisk is non-rotational, ie. SSD
The amount of swap currently used is 0
....

================================================================================
CPU core temperatures:
Core 0: Tmin: 35.0°C, Tmax: 40.0°C, (high = +80.0°C, crit = +100.0°C)
================================================================================
last latency data is as follows:.
 7202 secs  servo min: -10.600 uS max:  12.500 uS sdev:   1.300 uS
 7202 secs  servo min: -10.600 uS max:  12.500 uS sdev:   1.300 uS


I second tommylight, very good results indeed. There is one thing that I saw lately: randomly, the browser stopped playing videos. Thus load on the pc was low. Thus: Was your browser constantly playing videos? If not sure, repeat the test and check from time to time.

Greez
chris

Please Log in or Create an account to join the conversation.

More
18 Oct 2020 06:21 #186441 by BeagleBrainz
Sounds like a good M\B CPU combo to recommend for a new system. Even for software stepping.

Please Log in or Create an account to join the conversation.

More
18 Oct 2020 10:39 #186448 by M1g13
The video worked, I was there. I tried to move windows in different ways
Attachments:
The following user(s) said Thank You: seuchato

Please Log in or Create an account to join the conversation.

More
18 Oct 2020 10:54 #186449 by tommylight
It is a quite old single core Pentium processor.

Please Log in or Create an account to join the conversation.

More
18 Oct 2020 11:01 #186451 by BeagleBrainz
The following user(s) said Thank You: seuchato

Please Log in or Create an account to join the conversation.

More
18 Oct 2020 11:13 #186454 by M1g13

tommylight wrote: It is a quite old single core Pentium processor.



the processor was released this year, it is dual-core (I disabled one)

BeagleBrainz wrote: I thought it was this
ark.intel.com/content/www/us/en/ark/prod...-cache-4-00-ghz.html

M\B is a socket 1200


this is it
The following user(s) said Thank You: seuchato, tommylight

Please Log in or Create an account to join the conversation.

More
18 Oct 2020 11:15 #186455 by tommylight
Single core at 4 GHz should have raised an alarm, but i guess my alarms are off today ! :)

Please Log in or Create an account to join the conversation.

Time to create page: 0.176 seconds
Powered by Kunena Forum