You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-09-16 - 23:01

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 #a, 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
  TI
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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackaslot5s.osadl.org (updated Wed Sep 16, 2026 12:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800,0rcu_preempt3-21ksoftirqd/010:19:370
10050780,0irq/346-484840019825-1kworker/0:0H11:14:410
81730,0rcu_preempt3-21ksoftirqd/011:19:280
81730,0rcu_preempt3-21ksoftirqd/010:14:280
81700,0rcu_preempt19-21ksoftirqd/107:19:161
81650,0rcu_preempt3-21ksoftirqd/010:24:390
81580,0rcu_preempt3-21ksoftirqd/011:59:410
13250580,0irq/301-480200054-21kswapd009:19:280
81570,0rcu_preempt22540-1kworker/0:3H11:24:410
219522560,0chrt10050irq/346-484840007:36:590
10050560,0irq/346-48484004251-1kworker/0:1H12:18:200
81550,0rcu_preempt3-21ksoftirqd/009:44:400
81550,0rcu_preempt28515-21ping08:04:370
10050550,0irq/346-484840012334-21idleruntime-cro07:09:140
81540,0rcu_preempt28515-21ping08:19:400
10050540,0irq/346-48484009969-1kworker/0:1H12:28:530
9950530,0irq/345-484840024848-1kworker/0:1H10:54:590
81530,0rcu_preempt3-21ksoftirqd/007:14:270
10050530,0irq/346-484840054-21kswapd011:50:510
10050530,0irq/346-484840024862-21munin-node0
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional