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2026-04-14 - 13:45
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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
Characteristics of the 100 highest latencies:
System rack6slot0.osadl.org (updated Tue Apr 14, 2026 01:01:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3131399221216,4cyclictest0-21swapper/3020:25:2824
3131399221216,4cyclictest0-21swapper/3020:25:2724
3131399220213,5cyclictest0-21swapper/3020:15:2324
3131399220213,5cyclictest0-21swapper/3020:15:2324
3130799212204,6cyclictest0-21swapper/2419:40:1917
3130799212204,6cyclictest0-21swapper/2419:40:1817
3131399210198,10cyclictest0-21swapper/3020:22:3524
3131399210198,10cyclictest0-21swapper/3020:22:3524
3128799206195,9cyclictest0-21swapper/723:42:2737
3128799206195,9cyclictest0-21swapper/723:42:2737
3131399205193,10cyclictest0-21swapper/3020:30:2924
3131399205193,10cyclictest0-21swapper/3020:30:2924
3131399196191,4cyclictest0-21swapper/3020:15:0224
3131399196191,4cyclictest0-21swapper/3020:15:0224
3130699194159,12cyclictest171rcu_preempt23:42:4816
3130699194159,12cyclictest171rcu_preempt23:42:4816
3130099194108,76cyclictest2447-21CPU11
3130099194108,76cyclictest2447-21CPU11
3130099194108,76cyclictest2447-21CPU11
3130699190177,5cyclictest0-21swapper/2323:06:0616
3130699190177,5cyclictest0-21swapper/2323:06:0616
3130099189159,16cyclictest171rcu_preempt00:37:0011
3130099189159,16cyclictest171rcu_preempt00:36:5911
3128899189174,13cyclictest0-21swapper/823:12:2038
3128899189174,13cyclictest0-21swapper/823:12:2038
3128899189174,13cyclictest0-21swapper/823:12:2038
3128499188178,6cyclictest0-21swapper/423:20:1334
3128499188178,6cyclictest0-21swapper/423:20:1334
3128499188178,6cyclictest0-21swapper/423:20:1334
313009918771,34cyclictest0-21swapper/1921:55:0011
313009918771,34cyclictest0-21swapper/1921:55:0011
3128399187128,55cyclictest37356-21CPU23
3128399187128,55cyclictest37356-21CPU23
3130699186126,27cyclictest0-21swapper/2320:03:0916
3130699186126,27cyclictest0-21swapper/2320:03:0916
3130999185168,10cyclictest3545-21CPU19
3130999185168,10cyclictest3545-21CPU19
3130999185168,10cyclictest3545-21CPU19
312949918573,105cyclictest3546-21CPU5
312949918573,105cyclictest3546-21CPU5
312949918573,105cyclictest3546-21CPU5
3128799185146,36cyclictest0-21swapper/722:00:0937
3128799185146,36cyclictest0-21swapper/722:00:0937
3130699184167,9cyclictest0-21swapper/2300:35:2316
3130699184167,9cyclictest0-21swapper/2300:35:2316
3130699183168,6cyclictest0-21swapper/2322:15:4216
3130699183168,6cyclictest0-21swapper/2322:15:4216
3130699182139,20cyclictest171rcu_preempt21:11:2016
3130699182139,20cyclictest171rcu_preempt21:11:2016
3128899182126,39cyclictest2466-21CPU38
3128899182126,39cyclictest2466-21CPU38
3128899182126,39cyclictest2466-21CPU38
3128799182176,3cyclictest0-21swapper/723:20:0537
3128799182176,3cyclictest0-21swapper/723:20:0537
3131799181122,55cyclictest3541-21CPU27
3131799181122,55cyclictest3541-21CPU27
3130699181146,25cyclictest3610-21CPU16
3130699181146,25cyclictest3610-21CPU16
3128899181170,9cyclictest0-21swapper/820:11:0238
3128899181170,9cyclictest0-21swapper/820:11:0238
3128799180170,8cyclictest0-21swapper/722:52:5837
3128799180170,8cyclictest0-21swapper/722:52:5837
3128799180170,8cyclictest0-21swapper/722:52:5837
3128799180167,11cyclictest0-21swapper/722:38:1037
3128799180167,11cyclictest0-21swapper/722:38:1037
3128799180167,11cyclictest0-21swapper/722:38:1037
3132099179175,2cyclictest0-21swapper/3600:25:1430
3132099179175,2cyclictest0-21swapper/3600:25:1430
3130699179115,26cyclictest0-21swapper/2321:38:5016
3130699179115,26cyclictest0-21swapper/2321:38:4916
3128799179168,9cyclictest0-21swapper/721:34:5137
3128799179168,9cyclictest0-21swapper/721:34:5137
3128799179168,9cyclictest0-21swapper/721:34:5137
3128299179168,6cyclictest0-21swapper/222:03:4312
3128299179168,6cyclictest0-21swapper/222:03:4312
3130699178159,5cyclictest0-21swapper/2323:23:3216
3130699178159,5cyclictest0-21swapper/2323:23:3216
3130699178159,5cyclictest0-21swapper/2323:23:3216
3130699178130,23cyclictest0-21swapper/2321:17:4416
3130699178130,23cyclictest0-21swapper/2321:17:4416
3130099178146,13cyclictest171rcu_preempt19:17:2711
3130099178146,13cyclictest171rcu_preempt19:17:2711
3130699177107,28cyclictest0-21swapper/2320:57:1016
3128899177167,7cyclictest0-21swapper/822:41:1738
3128899177167,7cyclictest0-21swapper/822:41:1738
3128799177165,10cyclictest0-21swapper/722:14:0237
3128799177165,10cyclictest0-21swapper/722:14:0237
3128799177165,10cyclictest0-21swapper/722:14:0237
3128799177162,9cyclictest0-21swapper/700:25:5537
3128799177162,9cyclictest0-21swapper/700:25:5537
3131399176123,44cyclictest0-21swapper/3021:42:2224
3131399176123,44cyclictest0-21swapper/3021:42:2224
3130699176130,14cyclictest171rcu_preempt20:30:0516
3130699176130,14cyclictest171rcu_preempt20:30:0516
3130099176128,23cyclictest0-21swapper/1922:55:0511
3130099176128,23cyclictest0-21swapper/1922:55:0511
3130099176128,23cyclictest0-21swapper/1922:55:0511
3128899176169,4cyclictest0-21swapper/819:33:4538
3128899176169,4cyclictest0-21swapper/819:33:4538
3128899176157,11cyclictest0-21swapper/823:32:5638
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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