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2025-11-15 - 09:33
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack3slot6.osadl.org (updated Sat Nov 15, 2025 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59149912219,94cyclictest26-21ksoftirqd/122:15:151
59149911415,22cyclictest26-21ksoftirqd/100:25:171
59149911273,28cyclictest26-21ksoftirqd/100:05:151
59149911272,28cyclictest26-21ksoftirqd/122:00:131
59069910474,18cyclictest14-21ksoftirqd/022:45:140
59149910352,33cyclictest26-21ksoftirqd/100:30:161
59149910257,32cyclictest26-21ksoftirqd/122:55:131
59149910247,36cyclictest26-21ksoftirqd/120:05:161
2860121020,6chrt28604-21grep20:10:350
59149910154,31cyclictest26-21ksoftirqd/122:05:251
59149910013,67cyclictest0-21swapper/123:00:131
5914999949,31cyclictest26-21ksoftirqd/121:40:141
5914999914,64cyclictest0-21swapper/100:15:131
47592990,6chrt4760-21sshd23:35:430
48552985,83sleep04878-21sh19:05:260
5914999714,65cyclictest0-21swapper/120:45:161
5914999713,64cyclictest0-21swapper/122:10:131
5914999710,68cyclictest0-21swapper/123:50:121
5914999516,57cyclictest0-21swapper/100:10:141
5914999514,64cyclictest0-21swapper/119:35:131
5914999514,62cyclictest0-21swapper/121:25:141
5914999514,60cyclictest0-21swapper/119:10:131
5914999513,66cyclictest0-21swapper/121:05:171
5914999510,27cyclictest0-21swapper/122:50:131
5914999426,53cyclictest0-21swapper/119:45:171
5914999413,62cyclictest0-21swapper/123:55:121
5914999413,59cyclictest0-21swapper/121:20:181
5914999411,61cyclictest0-21swapper/119:30:131
5914999410,26cyclictest0-21swapper/119:40:141
5914999211,59cyclictest0-21swapper/121:00:161
5914999114,56cyclictest0-21swapper/123:40:171
5914999110,60cyclictest0-21swapper/121:15:141
590699903,79cyclictest13164-21runrttasks00:00:310
591499899,62cyclictest0-21swapper/122:30:161
591499899,62cyclictest0-21swapper/122:30:151
591499887,56cyclictest16284-21diskmemload21:10:141
5914998812,56cyclictest0-21swapper/119:55:141
5914998812,56cyclictest0-21swapper/119:55:131
5914998811,57cyclictest0-21swapper/123:35:161
5906998813,60cyclictest0-21swapper/020:05:190
591499877,56cyclictest20512-21chrt19:50:131
5906998714,61cyclictest0-21swapper/000:35:130
5906998710,63cyclictest28851-21apt-get21:45:130
5914998612,55cyclictest0-21swapper/120:25:131
590699869,64cyclictest0-21swapper/020:00:160
590699868,24cyclictest18193-21apt-get21:15:150
5906998616,60cyclictest0-21swapper/022:25:120
5906998614,61cyclictest0-21swapper/021:25:160
5906998612,63cyclictest0-21swapper/022:55:170
591499859,55cyclictest0-21swapper/119:25:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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