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2026-08-30 - 14:42

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 Aug 30, 2026 12:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1763099653,49cyclictest24990-21ssh11:45:111
1762199601,42cyclictest32523-21ssh12:25:130
1762199584,39cyclictest14337-21ssh12:15:140
1762199572,7cyclictest12-21ksoftirqd/010:10:110
17640995615,21cyclictest27-21ksoftirqd/210:10:112
1763099543,8cyclictest131rcu_preempt09:45:131
17630995417,24cyclictest21-21ksoftirqd/112:20:121
1763099541,5cyclictest131rcu_preempt10:00:131
1763099541,5cyclictest131rcu_preempt10:00:121
1764099521,28cyclictest24346-21ssh10:15:122
1762199461,33cyclictest22887-21ssh10:50:130
1763099454,33cyclictest28664-21ssh12:05:121
17648994335,5cyclictest35966irq/58-eth009:15:133
1763099413,24cyclictest12722-21sh09:15:131
17630994119,8cyclictest21-21ksoftirqd/108:50:121
1763099411,32cyclictest8512-21sshd11:00:151
17630994111,22cyclictest21-21ksoftirqd/112:35:141
1762199393,26cyclictest25733-21sshd09:40:150
1764899384,24cyclictest35966irq/58-eth011:40:123
1764899383,30cyclictest0-21swapper/307:20:113
17648993827,7cyclictest35966irq/58-eth010:10:113
17648993723,10cyclictest35966irq/58-eth011:50:133
17648993719,11cyclictest35966irq/58-eth012:25:133
1763099372,23cyclictest19624-21ssh12:00:141
1764899366,22cyclictest0-21swapper/310:00:133
1764899366,22cyclictest0-21swapper/310:00:133
1764899361,23cyclictest35966irq/58-eth010:45:123
1764099369,8cyclictest27-21ksoftirqd/209:30:132
1764099369,8cyclictest27-21ksoftirqd/209:30:122
1764099361,28cyclictest3103-21ssh11:15:152
1763099367,18cyclictest21-21ksoftirqd/108:35:131
1763099363,21cyclictest15885-21ssh11:40:131
1764899353,21cyclictest35966irq/58-eth010:35:143
1764899351,26cyclictest0-21swapper/310:25:133
1763099354,21cyclictest9183-21ssh12:30:151
1764899345,17cyclictest35966irq/58-eth012:00:133
17648993426,5cyclictest35966irq/58-eth007:50:103
1764899341,2cyclictest0-21swapper/310:40:123
1764099341,23cyclictest20419-21ssh09:55:142
17640993411,16cyclictest0-21swapper/209:23:102
1763099349,18cyclictest21-21ksoftirqd/107:50:111
17630993421,7cyclictest3266-21diskmemload12:25:151
1763099340,26cyclictest0-21swapper/109:50:121
1764099331,17cyclictest25732-21ssh09:40:152
1764899322,20cyclictest35966irq/58-eth007:55:133
1764099328,15cyclictest27-21ksoftirqd/212:25:022
17640993214,12cyclictest0-21swapper/211:37:382
1762199322,23cyclictest20436-21ssh09:55:150
1764099315,16cyclictest27346irq/40-dwc2_hso09:05:142
17640993113,13cyclictest0-21swapper/212:00:122
1763099313,11cyclictest30257-21ssh11:30:131
1762199311,19cyclictest24344-21rm10:15:110
1764899302,24cyclictest0-21swapper/311:20:123
1764899301,2cyclictest0-21swapper/311:10:153
1764899300,2cyclictest0-21swapper/311:45:123
1764099303,17cyclictest27346irq/40-dwc2_hso07:45:122
1764099302,21cyclictest0-21swapper/207:30:152
1763099304,18cyclictest21-21ksoftirqd/111:25:131
1763099304,18cyclictest21-21ksoftirqd/111:25:121
1763099303,19cyclictest21-21ksoftirqd/107:20:111
1764899293,22cyclictest36066irq/59-eth009:50:133
1764899292,24cyclictest0-21swapper/312:05:123
1764899291,18cyclictest35966irq/58-eth008:10:113
1764899290,2cyclictest0-21swapper/309:25:123
1764899290,1cyclictest0-21swapper/312:15:133
1764899290,1cyclictest0-21swapper/311:25:123
1764899290,1cyclictest0-21swapper/311:25:113
17640992912,8cyclictest0-21swapper/209:28:402
17640992912,11cyclictest0-21swapper/210:42:402
1763099296,17cyclictest21-21ksoftirqd/111:35:131
17630992920,6cyclictest21-21ksoftirqd/110:45:131
1764899282,17cyclictest35966irq/58-eth008:00:123
1764899281,2cyclictest0-21swapper/310:20:143
17648992812,9cyclictest35966irq/58-eth012:35:143
1764899280,2cyclictest0-21swapper/311:30:143
1764899280,2cyclictest0-21swapper/309:30:133
1764899280,2cyclictest0-21swapper/309:30:123
1764099289,13cyclictest27-21ksoftirqd/211:56:042
1764099289,11cyclictest0-21swapper/210:50:142
1764099285,14cyclictest27346irq/40-dwc2_hso08:00:132
1764099282,20cyclictest0-21swapper/208:55:142
1764099282,20cyclictest0-21swapper/208:55:132
1764099282,18cyclictest30283-21ssh11:30:152
17640992812,10cyclictest0-21swapper/212:33:262
1763099282,21cyclictest26314-21sshd09:00:141
1762199283,6cyclictest12-21ksoftirqd/011:35:180
17621992816,5cyclictest0-21swapper/008:00:120
1764899271,2cyclictest0-21swapper/309:35:133
1764899271,2cyclictest0-21swapper/309:35:123
1764899271,2cyclictest0-21swapper/308:40:143
1764899271,12cyclictest35966irq/58-eth007:35:123
1764899270,2cyclictest0-21swapper/307:30:123
1764099272,19cyclictest0-21swapper/208:10:142
1764099272,16cyclictest27346irq/40-dwc2_hso12:15:142
1764099272,12cyclictest12152-21ssh11:20:112
17640992712,7cyclictest0-21swapper/212:12:192
1764099271,12cyclictest17509-21ssh11:05:132
17640992710,11cyclictest0-21swapper/209:17:152
17621992718,6cyclictest3690-21ssh09:10:150
17621992715,9cyclictest151rcuc/008:55:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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