You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-07 - 15:42

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #b, slot #5

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  Phytec
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackbslot5s.osadl.org (updated Fri Mar 06, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3127992994936,10cyclictest391ktimers/309:10:123
3127988994738,7cyclictest3180119-21kworker/u8:3+events_unbound09:39:302
3127988994733,7cyclictest3145574-21kworker/u8:3+events_unbound08:04:142
3127988994537,6cyclictest3194103-21kworker/u8:0+events_unbound10:24:322
3127988994537,6cyclictest3194103-21kworker/u8:0+events_unbound10:24:322
3127983994534,8cyclictest3201211-21munin-run10:40:011
3127988994430,9cyclictest311ktimers/208:50:132
3127979994434,7cyclictest3159624-21sh08:40:010
3127988994236,4cyclictest3204245-21kworker/u8:3+events_unbound11:14:362
3127988994236,4cyclictest3170310-21kworker/u8:0+events_unbound09:14:252
3127992994133,5cyclictest3209756-21munin-plugin-st11:05:003
3127983994030,7cyclictest438-21cron09:30:011
3127979993931,5cyclictest3230175-21unixbench_multi12:00:250
3127979993926,8cyclictest3242346-21grep12:35:250
3127979993926,8cyclictest3242346-21grep12:35:250
3127988993832,4cyclictest3216567-21kworker/u8:0+events_unbound11:44:392
3127988993827,7cyclictest3130623-21grep07:15:152
3127988993729,4cyclictest3152616-21sendmail08:20:002
3127988993726,3cyclictest131rcu_preempt07:37:002
3127988993720,10cyclictest131rcu_preempt08:41:572
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional