I'm trying to setup a HP T610 for my next project. I've followed the guide but seem to be getting terrible latency and it doesn;t seem to have improved.
I've tried running - sudo echo "install pcspkr /bin/true" >/etc/modprobe.d/pcspkr.conf and I get an error stating bash: /etc/modprobe.d/pcspkr.conf: Permission denied
I am running Debian 11 with LCNC 2.9 so I can run python 3 with QTPYVCP.
Does anyone have any thoughts on what may improve the latency? Output from latency script below.
Code:
LinuxCNC pc tests, version 20200930, started 27.12.2021 11:48:23
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General info:
Hewlett-Packard, HP t610 WW Thin Client
Bios version K30 v01.20, dated 03/10/2015
Chipset: Harddisk is non-rotational, ie. SSD
The amount of swap currently used is 0
================================================================================
CPU related data:
model name : AMD G-T56N Processor
cpu cores : 2
stepping : 0
cache size : 512 KB
================================================================================
RAM related data:
Maximum Capacity: 8 GB
Size: 2 GB
Size: No Module Installed
================================================================================
GPU related data:
product: Wrestler [Radeon HD 6320]
configuration: driver=radeon latency=0
================================================================================
Parallel port related data:
number of parallel ports is 1
parport0: PC-style at 0x378 (0x778), irq 7 [PCSPP,TRISTATE,EPP]
================================================================================
Os and desktop related data:
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
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 : gdm3
================================================================================
Kernel related data:
Kernel 5.10.0-9-rt-amd64
GRUB_CMDLINE_LINUX_DEFAULT="intel_idle.max_cstate=0 processor.max_cstate=0 isolcpus=1 noirqbalance"
Cpu idle driver: acpi_idle
================================================================================
Kernel modules data:
Check if pcspkr is loaded: [0;31mYes, may cause bigger latency.[0m
can be eliminated using:
sudo echo "install pcspkr /bin/true" >/etc/modprobe.d/pcspkr.conf
Check if snd modules are loaded: [0;32mNo, which is good![0m
================================================================================
Keyboard & Mouse related data:
Number of mice: 1
Mouse 0 : Telink Wireless Receiver Mouse
Mice attached to USB:
Keyboards attached to USB:
Dell Computer Corp. Keyboard SK-8115
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LinuxCNC related data:
LinuxCNC version is: 2.9.0~pre0
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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 dave -c "latency-histogram --bbinsize 1000 --base 25000 --sbinsize 1000 --nox 2>&1 | tee -a 1640605695.lat &"
Latency testing loop started Mon 27 Dec 11:48:51 GMT 2021,
should end after Mon 27 Dec 13:48:51 GMT 2021
Useless to proceed, read the relevant part in 1640605695.lat
[0;31m>>>Unexpected realtime delay on task 0 with period 25000<<<[0m
================================================================================
Swap useage: prerun: 0, running: 764
================================================================================
CPU core temperatures: