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

LinuxCNC pc tests, version 20200922, started 26.09.2020 22:10:45 ******************************************************************************** General info: , Bios version , dated Chipset: Harddisk is non-rotational, ie. SSD The amount of swap currently used is 0 ================================================================================ CPU related data: model name : ARMv7 Processor rev 3 (v7l) ================================================================================ RAM related data: ================================================================================ GPU related data: ================================================================================ Parallel port related data: number of parallel ports is 0 ================================================================================ Os related data: PRETTY_NAME="Raspbian GNU/Linux 10 (buster)" Windowmanager = ================================================================================ Kernel related data: Kernel 4.19.71-rt24-v7l+ Cpu idle driver: ================================================================================ 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 ================================================================================ Keyboard & Mouse related data: Number of mice: 0 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 ================================================================================ Command for latency test is: su pi -c "latency-histogram --nobase --sbinsize 1000 --nox 2>&1 | tee -a 1601176201.lat &" Latency testing loop started Sat 26 Sep 2020 10:11:03 PM CDT, should end after Sun 27 Sep 2020 12:11:03 AM CDT ================================================================================ Swap useage: prerun: 0, running: 0 ================================================================================ CPU core temperatures: ================================================================================ last latency data is as follows:. 7203 secs servo min:-126.900 uS max: 146.900 uS sdev: 2.600 uS 7203 secs servo min:-126.900 uS max: 146.900 uS sdev: 2.600 uS