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2026-06-14 - 16:10

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #4

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 
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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.
Unexpectedly long latencies may be caused by SMIs
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 100 highest latencies:
System rack7slot4s.osadl.org (updated Sun Jun 14, 2026 12:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26444995338,7cyclictest35966irq/58-eth010:10:133
26444995338,7cyclictest35966irq/58-eth010:10:133
2643699511,34cyclictest15773-21ssh12:30:122
2642799487,6cyclictest131rcu_preempt10:10:131
2642799487,6cyclictest131rcu_preempt10:10:131
2641999481,34cyclictest6791-21ssh12:25:110
2643699471,22cyclictest25074-21ssh09:35:122
2641999472,33cyclictest3259-21ssh12:05:120
2643699462,33cyclictest1683-21ssh11:10:122
2644499446,22cyclictest35966irq/58-eth011:25:133
2643699432,34cyclictest17716-21memory11:35:222
2643699424,28cyclictest23206-21ssh10:10:132
2643699424,28cyclictest23206-21ssh10:10:132
26436994215,22cyclictest630-21Async09:36:312
2643699414,27cyclictest5206-21ssh10:00:122
2643699412,36cyclictest11443-21kthreadcore11:15:182
2644499402,34cyclictest0-21swapper/311:35:123
2644499391,23cyclictest35966irq/58-eth010:45:123
2643699382,18cyclictest22422-21ssh10:09:342
2641999383,8cyclictest12-21ksoftirqd/009:05:130
26444993717,9cyclictest0-21swapper/309:20:123
2643699372,29cyclictest1168-21ssh11:25:342
2643699372,18cyclictest16581-21sed11:00:172
2644499365,28cyclictest35966irq/58-eth009:10:143
2644499362,2cyclictest0-21swapper/307:55:133
2644499362,2cyclictest0-21swapper/307:55:133
2643699362,17cyclictest15447-21sh11:52:352
2643699362,17cyclictest12358-21diskmemload12:03:342
2641999364,25cyclictest8812-21ssh10:20:130
2644499351,2cyclictest0-21swapper/307:45:133
2643699352,26cyclictest11599-21usage_EthcTask12:25:302
2643699344,22cyclictest0-21swapper/210:55:172
26436993424,7cyclictest27-21ksoftirqd/210:20:122
2642799341,22cyclictest26812-21ssh10:30:101
2644499332,26cyclictest0-21swapper/311:40:123
2644499329,12cyclictest35966irq/58-eth012:30:113
2644499322,2cyclictest0-21swapper/310:20:123
2644499322,16cyclictest35966irq/58-eth012:00:133
2643699329,16cyclictest0-21swapper/212:20:272
2643699324,17cyclictest27346irq/40-dwc2_hso09:30:132
2642799322,22cyclictest19740-21ssh11:20:121
2642799320,3cyclictest131rcu_preempt07:40:121
2641999321,22cyclictest19696-21ssh09:50:130
2644499313,25cyclictest0-21swapper/308:55:103
2644499311,2cyclictest0-21swapper/307:40:123
2644499311,1cyclictest0-21swapper/309:50:143
2643699313,17cyclictest27346irq/40-dwc2_hso08:45:122
2643699312,4cyclictest271ksoftirqd/208:05:212
2643699312,22cyclictest8828-21ssh11:30:212
2642799319,8cyclictest21-21ksoftirqd/111:30:101
2642799312,23cyclictest15963-21ssh12:10:271
2641999318,19cyclictest12-21ksoftirqd/008:50:130
2641999315,19cyclictest21659-21ssh09:15:130
2644499305,12cyclictest35966irq/58-eth010:05:163
2644499304,16cyclictest0-21swapper/309:15:143
26444993014,11cyclictest35966irq/58-eth011:45:143
26444993014,10cyclictest35966irq/58-eth011:50:133
2644499301,3cyclictest0-21swapper/311:00:123
2643699307,14cyclictest27-21ksoftirqd/209:59:372
2643699303,16cyclictest27346irq/40-dwc2_hso07:10:112
2643699302,12cyclictest11604-21ssh10:39:342
2641999304,5cyclictest131rcu_preempt10:55:110
26444992915,11cyclictest35966irq/58-eth010:55:123
2644499291,3cyclictest0-21swapper/308:35:133
2644499291,2cyclictest0-21swapper/307:30:133
2644499291,25cyclictest0-21swapper/311:05:193
2644499291,23cyclictest0-21swapper/310:30:113
2644499291,22cyclictest0-21swapper/310:50:133
2643699294,6cyclictest131rcu_preempt09:00:112
2643699294,16cyclictest27346irq/40-dwc2_hso08:20:132
2643699294,16cyclictest27346irq/40-dwc2_hso08:20:132
2643699293,21cyclictest0-21swapper/212:19:342
2643699293,10cyclictest26694-21grep11:40:232
2643699292,21cyclictest0-21swapper/211:47:342
2643699292,20cyclictest0-21swapper/207:45:142
2642799291,5cyclictest131rcu_preempt10:55:121
2641999294,17cyclictest17854-21ssh11:55:130
2641999292,19cyclictest3206-21kthreadcore11:10:180
26419992913,2cyclictest131rcu_preempt07:15:130
2641999291,2cyclictest7423-1kworker/u9:009:10:140
2644499284,15cyclictest0-21swapper/311:10:133
2644499283,2cyclictest0-21swapper/311:15:123
2644499283,18cyclictest35966irq/58-eth010:40:143
2644499282,5cyclictest0-21swapper/312:10:133
2644499281,3cyclictest0-21swapper/309:00:123
2643699289,16cyclictest26337-21ssh09:15:322
2643699285,6cyclictest0-21swapper/207:20:152
2643699285,6cyclictest0-21swapper/207:20:142
2643699283,20cyclictest27-21ksoftirqd/210:25:152
2643699282,21cyclictest25724-21apt-get08:50:132
2642799282,19cyclictest3207-21kthreadcore11:10:181
2642799281,3cyclictest131rcu_preempt08:55:101
26419992822,3cyclictest131rcu_preempt10:35:110
2644499274,12cyclictest0-21swapper/312:35:123
2644499273,12cyclictest0-21swapper/312:09:353
2644499271,3cyclictest0-21swapper/309:28:393
2644499271,2cyclictest0-21swapper/309:30:143
2644499271,2cyclictest0-21swapper/308:00:133
2644499271,2cyclictest0-21swapper/307:20:143
2644499271,2cyclictest0-21swapper/307:20:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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