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Results of latency test, list of computers tested for use with LinuxCNC
18 Oct 2020 11:28 - 19 Oct 2020 16:41 #186457
by seuchato
Replied by seuchato on topic Results of latency test, list of computers tested for use with LinuxCNC
G6400 has two cores, but who cares looking at the results (currently around 70 - 90 €). The mobo seems to be
this one
(currently around 95 - 110 €). Plus Ram plus ssd and casing, powersupply, will probably end up somewhere in between 250 - 350 €. Guess what: I ordered one!
excerpt from referenced page:
"B460 Ultra Durable Motherboard with Dual NVMe PCIe Gen3 X4 M.2 Slots, Intel® GbE with cFosSpeed,"
I like <Ultra Durable Motherboard>
greez
chris
Edit: 19. Oct. 2020: Actual price for CPU, Ram, Mobo and cooler is at 300€. I do have a case and powersupply already, stuff should be here coming weekend.
excerpt from referenced page:
"B460 Ultra Durable Motherboard with Dual NVMe PCIe Gen3 X4 M.2 Slots, Intel® GbE with cFosSpeed,"
I like <Ultra Durable Motherboard>
greez
chris
Edit: 19. Oct. 2020: Actual price for CPU, Ram, Mobo and cooler is at 300€. I do have a case and powersupply already, stuff should be here coming weekend.
Last edit: 19 Oct 2020 16:41 by seuchato. Reason: added prices as of Oct 2020
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18 Oct 2020 11:36 #186458
by tommylight
Replied by tommylight on topic Results of latency test, list of computers tested for use with LinuxCNC
It does have a parallel port header !
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18 Oct 2020 11:47 - 18 Oct 2020 14:08 #186459
by seuchato
Replied by seuchato on topic Results of latency test, list of computers tested for use with LinuxCNC
Cooler that should suit a slim line case: Noctua NH-L12S
If it proofs unsuitable for linuxcnc, I can still use it as a home server (TDP of CPU is 53W, if I take the G6400T only 35W).
If it proofs unsuitable for linuxcnc, I can still use it as a home server (TDP of CPU is 53W, if I take the G6400T only 35W).
Last edit: 18 Oct 2020 14:08 by seuchato. Reason: typos
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19 Oct 2020 07:17 #186563
by seuchato
Replied by seuchato on topic Results of latency test, list of computers tested for use with LinuxCNC
As promised, Iadded the very BIOS settings used for all the Optiplex 980 I tested giving best results
here
.
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30 Oct 2020 21:13 - 30 Oct 2020 21:21 #187837
by my1987toyota
Replied by my1987toyota on topic Results of latency test, list of computers tested for use with LinuxCNC
This is an early test of my Dell OptiPlex 7010 core i5 , 8gigs ram , 250gig SSD
and a whole lot of frustration.
In short Linux Mint 19.3 XFCE and Lcnc 2.8 Preempt don't go
well together for this machine .
A 300 second test was more then long enough to test this out
No mater what Bios settings I tried it didn't improve much.
sorry for the long post I don't currently know how to do the post within a post
LinuxCNC pc tests, version 20200930, started 29.10.2020 23:34:41
********************************************************************************
General info:
Dell Inc., OptiPlex 7010
Bios version A29, dated 06/28/2018
Chipset: Intel Corporation 7 Series/C216
Harddisk is non-rotational, ie. SSD
The amount of swap currently used is 0
================================================================================
CPU related data:
model name : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
cpu cores : 4
stepping : 9
cache size : 6144 KB
================================================================================
RAM related data:
Maximum Capacity: 32 GB
Size: No Module Installed
Size: 4096 MB
Size: No Module Installed
Size: 4096 MB
================================================================================
GPU related data:
product: Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller
configuration: driver=i915 latency=0
================================================================================
Parallel port related data:
number of parallel ports is 0
================================================================================
Os and desktop related data:
PRETTY_NAME="Linux Mint 19.3"
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
forum.linuxcnc.org/18-computer/39370-scr...-of-computer-latency
Desktop environment : lightdm
Windowmanager : Xfwm4
Displaymanager : lightdm
================================================================================
Kernel related data:
Kernel 5.0.0-32-generic
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
Cpu idle driver: intel_idle
================================================================================
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: 1
Mouse 0 :
Mice attached to USB:
Keyboards attached to USB:
Dell Computer Corp. Keyboard
================================================================================
LinuxCNC related data:
LinuxCNC version is: 2.8.0.96.g589db060d
================================================================================
Preparing for latency test:
Started glxgears No. 1, 2, 3, 4, 5
..........
Started firefox with ' vimeo.com/150574260 ', WID
================================================================================
Command for latency test is:
su cnc -c "latency-histogram --nobase --base 25000 --sbinsize 1000 --nox 2>&1 | tee -a 1604028827.lat &"
Latency testing loop started Thu Oct 29 23:34:55 EDT 2020,
should end after Thu Oct 29 23:39:55 EDT 2020
================================================================================
Swap useage: prerun: 0, running: 0
================================================================================
CPU core temperatures:
Core 0: Tmin: 36.0°C, Tmax: 41.0°C, (high = +85.0°C, crit = +105.0°C)
Core 1: Tmin: 40.0°C, Tmax: 45.0°C, (high = +85.0°C, crit = +105.0°C)
Core 2: Tmin: 37.0°C, Tmax: 43.0°C, (high = +85.0°C, crit = +105.0°C)
Core 3: Tmin: 37.0°C, Tmax: 44.0°C, (high = +85.0°C, crit = +105.0°C)
================================================================================
last latency data is as follows:.
299 secs servo min:-999.900 uS max:8653.700 uS sdev: 7.400 uS
300 secs servo min:-999.900 uS max:8653.700 uS sdev: 7.400 uS
and a whole lot of frustration.
In short Linux Mint 19.3 XFCE and Lcnc 2.8 Preempt don't go
well together for this machine .
A 300 second test was more then long enough to test this out
No mater what Bios settings I tried it didn't improve much.
sorry for the long post I don't currently know how to do the post within a post
LinuxCNC pc tests, version 20200930, started 29.10.2020 23:34:41
********************************************************************************
General info:
Dell Inc., OptiPlex 7010
Bios version A29, dated 06/28/2018
Chipset: Intel Corporation 7 Series/C216
Harddisk is non-rotational, ie. SSD
The amount of swap currently used is 0
================================================================================
CPU related data:
model name : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
cpu cores : 4
stepping : 9
cache size : 6144 KB
================================================================================
RAM related data:
Maximum Capacity: 32 GB
Size: No Module Installed
Size: 4096 MB
Size: No Module Installed
Size: 4096 MB
================================================================================
GPU related data:
product: Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller
configuration: driver=i915 latency=0
================================================================================
Parallel port related data:
number of parallel ports is 0
================================================================================
Os and desktop related data:
PRETTY_NAME="Linux Mint 19.3"
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
forum.linuxcnc.org/18-computer/39370-scr...-of-computer-latency
Desktop environment : lightdm
Windowmanager : Xfwm4
Displaymanager : lightdm
================================================================================
Kernel related data:
Kernel 5.0.0-32-generic
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
Cpu idle driver: intel_idle
================================================================================
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: 1
Mouse 0 :
Mice attached to USB:
Keyboards attached to USB:
Dell Computer Corp. Keyboard
================================================================================
LinuxCNC related data:
LinuxCNC version is: 2.8.0.96.g589db060d
================================================================================
Preparing for latency test:
Started glxgears No. 1, 2, 3, 4, 5
..........
Started firefox with ' vimeo.com/150574260 ', WID
================================================================================
Command for latency test is:
su cnc -c "latency-histogram --nobase --base 25000 --sbinsize 1000 --nox 2>&1 | tee -a 1604028827.lat &"
Latency testing loop started Thu Oct 29 23:34:55 EDT 2020,
should end after Thu Oct 29 23:39:55 EDT 2020
================================================================================
Swap useage: prerun: 0, running: 0
================================================================================
CPU core temperatures:
Core 0: Tmin: 36.0°C, Tmax: 41.0°C, (high = +85.0°C, crit = +105.0°C)
Core 1: Tmin: 40.0°C, Tmax: 45.0°C, (high = +85.0°C, crit = +105.0°C)
Core 2: Tmin: 37.0°C, Tmax: 43.0°C, (high = +85.0°C, crit = +105.0°C)
Core 3: Tmin: 37.0°C, Tmax: 44.0°C, (high = +85.0°C, crit = +105.0°C)
================================================================================
last latency data is as follows:.
299 secs servo min:-999.900 uS max:8653.700 uS sdev: 7.400 uS
300 secs servo min:-999.900 uS max:8653.700 uS sdev: 7.400 uS
Last edit: 30 Oct 2020 21:21 by my1987toyota.
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30 Oct 2020 21:19 #187838
by my1987toyota
Replied by my1987toyota on topic Results of latency test, list of computers tested for use with LinuxCNC
Now this is more like it . Debian Buster with Lcnc 2.8 Preempt
If I am understanding this right it should work fine with the
Mesa 7i76E card I will be using
I will do the 2 hour long test tonight and report back if their is
any significant changes
sorry in advance for the long post . I unfortunately dont know
how to make the post within a post.
LinuxCNC pc tests, version 20200930, started 30.10.2020 16:44:01
********************************************************************************
General info:
Dell Inc., OptiPlex 7010
Bios version A29, dated 06/28/2018
Chipset: Intel Corporation 7 Series/C216
Harddisk is non-rotational, ie. SSD
The amount of swap currently used is 0
================================================================================
CPU related data:
model name : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
cpu cores : 4
stepping : 9
cache size : 6144 KB
================================================================================
RAM related data:
Maximum Capacity: 32 GB
Size: No Module Installed
Size: 4096 MB
Size: No Module Installed
Size: 4096 MB
================================================================================
GPU related data:
product: Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller
configuration: driver=i915 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
forum.linuxcnc.org/18-computer/39370-scr...-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: intel_idle
================================================================================
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.
================================================================================
Keyboard & Mouse related data:
Number of mice: 1
Mouse 0 : PixArt USB Optical Mouse
Mice attached to USB:
Keyboards attached to USB:
Dell Computer Corp. Keyboard
================================================================================
LinuxCNC related data:
LinuxCNC version is: 2.8.0
================================================================================
Preparing for latency test:
Started glxgears No. 1, 2, 3, 4, 5
..........
Started firefox with ' vimeo.com/150574260 ', WID 50331651
================================================================================
Command for latency test is:
su cnc -c "latency-histogram --nobase --base 25000 --sbinsize 1000 --nox 2>&1 | tee -a 1604090598.lat &"
Latency testing loop started Fri 30 Oct 2020 04:44:14 PM EDT,
should end after Fri 30 Oct 2020 04:49:14 PM EDT
================================================================================
Swap useage: prerun: 0, running: 0
================================================================================
CPU core temperatures:
Core 0: Tmin: 45.0°C, Tmax: 62.0°C, (high = +85.0°C, crit = +105.0°C)
Core 1: Tmin: 48.0°C, Tmax: 68.0°C, (high = +85.0°C, crit = +105.0°C)
Core 2: Tmin: 48.0°C, Tmax: 66.0°C, (high = +85.0°C, crit = +105.0°C)
Core 3: Tmin: 45.0°C, Tmax: 65.0°C, (high = +85.0°C, crit = +105.0°C)
================================================================================
last latency data is as follows:.
304 secs servo min: -58.500 uS max: 54.000 uS sdev: 3.100 uS
305 secs servo min: -58.500 uS max: 54.000 uS sdev: 3.100 uS
If I am understanding this right it should work fine with the
Mesa 7i76E card I will be using
I will do the 2 hour long test tonight and report back if their is
any significant changes
sorry in advance for the long post . I unfortunately dont know
how to make the post within a post.
LinuxCNC pc tests, version 20200930, started 30.10.2020 16:44:01
********************************************************************************
General info:
Dell Inc., OptiPlex 7010
Bios version A29, dated 06/28/2018
Chipset: Intel Corporation 7 Series/C216
Harddisk is non-rotational, ie. SSD
The amount of swap currently used is 0
================================================================================
CPU related data:
model name : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
cpu cores : 4
stepping : 9
cache size : 6144 KB
================================================================================
RAM related data:
Maximum Capacity: 32 GB
Size: No Module Installed
Size: 4096 MB
Size: No Module Installed
Size: 4096 MB
================================================================================
GPU related data:
product: Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller
configuration: driver=i915 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
forum.linuxcnc.org/18-computer/39370-scr...-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: intel_idle
================================================================================
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.
================================================================================
Keyboard & Mouse related data:
Number of mice: 1
Mouse 0 : PixArt USB Optical Mouse
Mice attached to USB:
Keyboards attached to USB:
Dell Computer Corp. Keyboard
================================================================================
LinuxCNC related data:
LinuxCNC version is: 2.8.0
================================================================================
Preparing for latency test:
Started glxgears No. 1, 2, 3, 4, 5
..........
Started firefox with ' vimeo.com/150574260 ', WID 50331651
================================================================================
Command for latency test is:
su cnc -c "latency-histogram --nobase --base 25000 --sbinsize 1000 --nox 2>&1 | tee -a 1604090598.lat &"
Latency testing loop started Fri 30 Oct 2020 04:44:14 PM EDT,
should end after Fri 30 Oct 2020 04:49:14 PM EDT
================================================================================
Swap useage: prerun: 0, running: 0
================================================================================
CPU core temperatures:
Core 0: Tmin: 45.0°C, Tmax: 62.0°C, (high = +85.0°C, crit = +105.0°C)
Core 1: Tmin: 48.0°C, Tmax: 68.0°C, (high = +85.0°C, crit = +105.0°C)
Core 2: Tmin: 48.0°C, Tmax: 66.0°C, (high = +85.0°C, crit = +105.0°C)
Core 3: Tmin: 45.0°C, Tmax: 65.0°C, (high = +85.0°C, crit = +105.0°C)
================================================================================
last latency data is as follows:.
304 secs servo min: -58.500 uS max: 54.000 uS sdev: 3.100 uS
305 secs servo min: -58.500 uS max: 54.000 uS sdev: 3.100 uS
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30 Oct 2020 22:08 #187844
by tommylight
Replied by tommylight on topic Results of latency test, list of computers tested for use with LinuxCNC
Last one looks good.
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30 Oct 2020 22:39 #187846
by Clive S
If you hover along the icons at the top you have the choice of "code" or "spoiler"
So put you text in as normal then highlight what you want it then click on the icon at the top. "code" or "spoiler"
Replied by Clive S on topic Results of latency test, list of computers tested for use with LinuxCNC
sorry in advance for the long post . I unfortunately dont know
how to make the post within a post.
If you hover along the icons at the top you have the choice of "code" or "spoiler"
So put you text in as normal then highlight what you want it then click on the icon at the top. "code" or "spoiler"
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30 Oct 2020 23:06 #187848
by my1987toyota
Replied by my1987toyota on topic Results of latency test, list of computers tested for use with LinuxCNC
Thank you Clive S . I am sure everyone is thanking you for telling me that.
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31 Oct 2020 00:07 #187851
by my1987toyota
Replied by my1987toyota on topic Results of latency test, list of computers tested for use with LinuxCNC
this is of the 2 hour test
LinuxCNC pc tests, version 20200930, started 30.10.2020 17:59:09
********************************************************************************
General info:
Dell Inc., OptiPlex 7010
Bios version A29, dated 06/28/2018
Chipset: Intel Corporation 7 Series/C216
Harddisk is non-rotational, ie. SSD
The amount of swap currently used is 0
================================================================================
CPU related data:
model name : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
cpu cores : 4
stepping : 9
cache size : 6144 KB
================================================================================
RAM related data:
Maximum Capacity: 32 GB
Size: No Module Installed
Size: 4096 MB
Size: No Module Installed
Size: 4096 MB
================================================================================
GPU related data:
product: Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller
configuration: driver=i915 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: intel_idle
================================================================================
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.
================================================================================
Keyboard & Mouse related data:
Number of mice: 1
Mouse 0 : PixArt USB Optical Mouse
Mice attached to USB:
Keyboards attached to USB:
Dell Computer Corp. Keyboard
================================================================================
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 50331651
================================================================================
Command for latency test is:
su cnc -c "latency-histogram --nobase --base 25000 --sbinsize 1000 --nox 2>&1 | tee -a 1604095133.lat &"
Latency testing loop started Fri 30 Oct 2020 05:59:23 PM EDT,
should end after Fri 30 Oct 2020 07:59:23 PM EDT
================================================================================
Swap useage: prerun: 0, running: 0
================================================================================
CPU core temperatures:
Core 0: Tmin: 50.0°C, Tmax: 68.0°C, (high = +85.0°C, crit = +105.0°C)
Core 1: Tmin: 56.0°C, Tmax: 74.0°C, (high = +85.0°C, crit = +105.0°C)
Core 2: Tmin: 54.0°C, Tmax: 72.0°C, (high = +85.0°C, crit = +105.0°C)
Core 3: Tmin: 52.0°C, Tmax: 71.0°C, (high = +85.0°C, crit = +105.0°C)
================================================================================
last latency data is as follows:.
7201 secs servo min: -82.900 uS max: 69.600 uS sdev: 3.200 uS
7202 secs servo min: -82.900 uS max: 69.600 uS sdev: 3.200 uS
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