Skip to content

Latest commit

 

History

History
83 lines (52 loc) · 4.17 KB

report.md

File metadata and controls

83 lines (52 loc) · 4.17 KB
Raw

horse: rtai-5.2 on 4.4.176 linux kernel

tested on 2019-06-18

RTAI-patched linux kernel and machine

Linux kernel version 4.4.176 patched with hal-linux-4.4.176-x86-14.patch of rtai-5.2

Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz on a FUJITSU D3161-A1 motherboard (version S26361-D3161-A1)

Performance

kern/latency test for 1983 seconds. Reported is the mean, standard deviation and the maximum value of the jitter (lat max - lat min) in nanoseconds.

No ACPI idle machine

kernel configuration

Kernel parameter:

  • idle=poll
  • tsc=reliable
  • isolcpus=1
isolcpus mean stdev max link
none 673 356 4043 test details
1 218 182 3680 test details

idle.png

No ACPI full load

kernel configuration

Kernel parameter:

  • idle=poll
  • tsc=reliable
  • isolcpus=1
isolcpus mean stdev max link
none 3428 606 6501 test details
1 4019 346 7519 test details

full.png

Full ACPI idle machine

kernel configuration

Kernel parameter:

  • tsc=reliable
  • isolcpus=1
latency mean stdev max link
- 251 223 2086 test details
kern 325 209 2028 test details
user 151 72 1262 test details

acpiidle.png

Full ACPI full load

kernel configuration

Kernel parameter:

  • tsc=reliable
  • isolcpus=1
latency mean stdev max link
- 4166 349 8513 test details
kern 4179 460 11579 test details
user 4079 455 10050 test details

acpifull.png