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

Have spent some time and wiped complete system and reinstalled to Mint 20 and 2.8test.
Now have a lower latency but still appears high. Still got problem opening parport but working on that
Will update if I get a positive

Bari wrote: The main problem I have found with big name business PC has been the poor BIOS installed. They trim features out such as the ability to turn off power management, virtualization and speed steeping for less problems with tech support.

For best latency test results I always recommend a motherboard with a full featured BIOS. The gaming versions usually have all the features left in the menus for BIOS tweaking.

100% agreed!

shortcircuit48 wrote: Sorry for being vague HP 500 B MT desktop.

The motherboard has an onboard ethernet built in and in addition there was an ethernet card to which the internet was connected in the only slot available for a parallel port card.

Did you run the script? If, kindly post the *.hw file. There is a lot of info on your 'puter that will help.

greez
chris

Hopefully this is the file?

<pre><font color="#8AE234"><b>amish@hamish-HP-500B-Microtower</b></font>:<font color="#739FCF"><b>~</b></font>$ lshw
WARNING: you should run this program as super-user.
hamish-hp-500b-microtower
description: Computer
width: 64 bits
capabilities: smp vsyscall32
*-core
description: Motherboard
physical id: 0
*-memory
description: System memory
physical id: 0
size: 4GiB
*-cpu
product: Pentium(R) Dual-Core CPU E5500 @ 2.80GHz
vendor: Intel Corp.
physical id: 1
bus info: cpu@0
size: 2803MHz
capacity: 2803MHz
width: 64 bits
capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm kaiser tpr_shadow vnmi flexpriority dtherm cpufreq
*-pci
description: Host bridge
product: 4 Series Chipset DRAM Controller
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 03
width: 32 bits
clock: 33MHz
*-display
description: VGA compatible controller
product: 4 Series Chipset Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 03
width: 64 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:27 memory:fe400000-fe7fffff memory:d0000000-dfffffff ioport:cc00(size= memory:c0000-dffff
*-multimedia
description: Audio device
product: NM10/ICH7 Family High Definition Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:28 memory:feaf8000-feafbfff
*-pci:0
description: PCI bridge
product: NM10/ICH7 Family PCI Express Port 1
vendor: Intel Corporation
physical id: 1c
bus info: pci@0000:00:1c.0
version: 01
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:24 ioport:1000(size=4096) memory:c0000000-c01fffff ioport:c0200000(size=2097152)
*-pci:1
description: PCI bridge
product: NM10/ICH7 Family PCI Express Port 2
vendor: Intel Corporation
physical id: 1c.1
bus info: pci@0000:00:1c.1
version: 01
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:25 ioport:d000(size=4096) memory:feb00000-febfffff ioport:fdf00000(size=1048576)
*-network
description: Ethernet interface
product: RTL810xE PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: ens33
version: 02
serial: d4:85:64:08:07:53
size: 100Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full ip=192.168.1.164 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:26 ioport:d800(size=256) memory:febff000-febfffff memory:fdff0000-fdffffff memory:febc0000-febdffff
*-usb:0
description: USB controller
product: NM10/ICH7 Family USB UHCI Controller #1
vendor: Intel Corporation
physical id: 1d
bus info: pci@0000:00:1d.0
version: 01
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master
configuration: driver=uhci_hcd latency=0
resources: irq:23 ioport:c880(size=32)
*-usb:1
description: USB controller
product: NM10/ICH7 Family USB UHCI Controller #2
vendor: Intel Corporation
physical id: 1d.1
bus info: pci@0000:00:1d.1
version: 01
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master
configuration: driver=uhci_hcd latency=0
resources: irq:19 ioport:c800(size=32)
*-usb:2
description: USB controller
product: NM10/ICH7 Family USB UHCI Controller #3
vendor: Intel Corporation
physical id: 1d.2
bus info: pci@0000:00:1d.2
version: 01
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master
configuration: driver=uhci_hcd latency=0
resources: irq:18 ioport:c480(size=32)
*-usb:3
description: USB controller
product: NM10/ICH7 Family USB UHCI Controller #4
vendor: Intel Corporation
physical id: 1d.3
bus info: pci@0000:00:1d.3
version: 01
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master
configuration: driver=uhci_hcd latency=0
resources: irq:16 ioport:c400(size=32)
*-usb:4
description: USB controller
product: NM10/ICH7 Family USB2 EHCI Controller
vendor: Intel Corporation
physical id: 1d.7
bus info: pci@0000:00:1d.7
version: 01
width: 32 bits
clock: 33MHz
capabilities: ehci bus_master cap_list
configuration: driver=ehci-pci latency=0
resources: irq:23 memory:feaf7c00-feaf7fff
*-pci:2
description: PCI bridge
product: 82801 PCI Bridge
vendor: Intel Corporation
physical id: 1e
bus info: pci@0000:00:1e.0
version: e1
width: 32 bits
clock: 33MHz
capabilities: pci subtractive_decode bus_master cap_list
resources: ioport:e000(size=4096)
*-communication UNCLAIMED
description: Parallel controller
physical id: 4
bus info: pci@0000:03:04.0
version: 0f
width: 32 bits
clock: 33MHz
capabilities: bidir
configuration: latency=0
resources: ioport:ec00(size= ioport:e880(size=
*-isa
description: ISA bridge
product: 82801GB/GR (ICH7 Family) LPC Interface Bridge
vendor: Intel Corporation
physical id: 1f
bus info: pci@0000:00:1f.0
version: 01
width: 32 bits
clock: 33MHz
capabilities: isa bus_master cap_list
configuration: driver=lpc_ich latency=0
resources: irq:0
*-ide:0
description: IDE interface
product: 82801G (ICH7 Family) IDE Controller
vendor: Intel Corporation
physical id: 1f.1
bus info: pci@0000:00:1f.1
version: 01
width: 32 bits
clock: 33MHz
capabilities: ide isa_compat_mode pci_native_mode bus_master
configuration: driver=ata_piix latency=0
resources: irq:18 ioport:1f0(size= ioport:3f6 ioport:170(size= ioport:376 ioport:ffa0(size=16)
*-ide:1
description: IDE interface
product: NM10/ICH7 Family SATA Controller [IDE mode]
vendor: Intel Corporation
physical id: 1f.2
bus info: pci@0000:00:1f.2
logical name: scsi2
version: 01
width: 32 bits
clock: 66MHz
capabilities: ide isa_compat_mode pci_native_mode bus_master cap_list emulated
configuration: driver=ata_piix latency=0
resources: irq:19 ioport:c080(size= ioport:c000(size=4) ioport:bc00(size= ioport:b880(size=4) ioport:b800(size=16)
*-cdrom
description: DVD-RAM writer
product: DVD-RAM GH40L
vendor: hp
physical id: 0.1.0
bus info: scsi@2:0.1.0
logical name: /dev/cdrom
logical name: /dev/cdrw
logical name: /dev/dvd
logical name: /dev/dvdrw
logical name: /dev/sr0
version: RB0E
capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram
configuration: ansiversion=5 status=nodisc
*-serial
description: SMBus
product: NM10/ICH7 Family SMBus Controller
vendor: Intel Corporation
physical id: 1f.3
bus info: pci@0000:00:1f.3
version: 01
width: 32 bits
clock: 33MHz
configuration: driver=i801_smbus latency=0
resources: irq:19 ioport:400(size=32)
*-pnp00:00
product: PnP device PNP0c01
physical id: 2
capabilities: pnp
configuration: driver=system
*-pnp00:01
product: PnP device PNP0b00
physical id: 3
capabilities: pnp
configuration: driver=rtc_cmos
*-pnp00:02
product: PnP device PNP0c02
physical id: 4
capabilities: pnp
configuration: driver=system
*-pnp00:03
product: PnP device PNP0c02
physical id: 5
capabilities: pnp
configuration: driver=system
*-pnp00:04
product: PnP device PNP0c02
physical id: 6
capabilities: pnp
configuration: driver=system
*-pnp00:05
product: PnP device PNP0c02
physical id: 7
capabilities: pnp
configuration: driver=system
*-pnp00:06
product: PnP device PNP0c02
physical id: 8
capabilities: pnp
configuration: driver=system
*-pnp00:07
product: PnP device PNP0c01
physical id: 9
capabilities: pnp
configuration: driver=system
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.
<font color="#8AE234"><b>hamish@hamish-HP-500B-Microtower</b></font>:<font color="#739FCF"><b>~</b></font>$

</pre>

Extremely grateful for your help

It helps but is really difficult to read, I meant the script in this post

Greez
chris

I copy file I edited for the iport tester which I hope is what you require, otherwise can you please direct me..

oadrt hal_parport cfg="0xec00 out"
loadusr -Wn PortTest pyvcp -c PortTest ptest.xml
loadrt threads name1=porttest period1=1000000
addf parport.0.read porttest
addf parport.0.write porttest

net pin01 PortTest.btn01 parport.0.pin-01-out PortTest.led-01
net pin02 PortTest.btn02 parport.0.pin-02-out PortTest.led-02
net pin03 PortTest.btn03 parport.0.pin-03-out PortTest.led-03
net pin04 PortTest.btn04 parport.0.pin-04-out PortTest.led-04
net pin05 PortTest.btn05 parport.0.pin-05-out PortTest.led-05
net pin06 PortTest.btn06 parport.0.pin-06-out PortTest.led-06
net pin07 PortTest.btn07 parport.0.pin-07-out PortTest.led-07
net pin08 PortTest.btn08 parport.0.pin-08-out PortTest.led-08
net pin09 PortTest.btn09 parport.0.pin-09-out PortTest.led-09
net pin14 PortTest.btn14 parport.0.pin-14-out PortTest.led-14
net pin16 PortTest.btn16 parport.0.pin-16-out PortTest.led-16
net pin17 PortTest.btn17 parport.0.pin-17-out PortTest.led-17