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2026-04-07 - 20:02
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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 100 highest latencies:
System rack3slot6.osadl.org (updated Tue Apr 07, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
103139911987,20cyclictest14-21ksoftirqd/009:30:140
103139911788,19cyclictest14-21ksoftirqd/011:20:140
103139911689,15cyclictest14-21ksoftirqd/011:05:110
103139911383,20cyclictest14-21ksoftirqd/009:25:130
103139911383,20cyclictest14-21ksoftirqd/008:50:140
103139911285,18cyclictest14-21ksoftirqd/009:55:110
103179911012,28cyclictest0-21swapper/111:45:121
103179910612,24cyclictest0-21swapper/110:10:221
103139910474,21cyclictest14-21ksoftirqd/010:35:140
103139910471,23cyclictest14-21ksoftirqd/012:35:140
103139910273,19cyclictest14-21ksoftirqd/007:40:120
103139910070,19cyclictest14-21ksoftirqd/010:20:120
103139910070,19cyclictest14-21ksoftirqd/010:20:120
10313999965,21cyclictest14-21ksoftirqd/011:25:150
134222980,5chrt36-21kcompactd010:20:111
134222980,5chrt36-21kcompactd010:20:111
10317999812,24cyclictest0-21swapper/110:50:111
10313999866,20cyclictest14-21ksoftirqd/012:25:140
10313999813,71cyclictest0-21swapper/008:30:130
10313999813,71cyclictest0-21swapper/008:30:130
10313999812,73cyclictest0-21swapper/008:10:120
10313999767,18cyclictest14-21ksoftirqd/007:45:130
10313999764,21cyclictest14-21ksoftirqd/010:45:140
10313999664,18cyclictest14-21ksoftirqd/009:50:140
10313999511,31cyclictest0-21swapper/010:05:110
10313999463,18cyclictest14-21ksoftirqd/012:05:130
10313999461,21cyclictest14-21ksoftirqd/007:25:130
10313999458,24cyclictest14-21ksoftirqd/008:40:120
10313999458,23cyclictest14-21ksoftirqd/010:00:150
10313999458,23cyclictest14-21ksoftirqd/007:30:150
10313999411,31cyclictest0-21swapper/009:05:110
1018029417,28sleep010198-21munin-run07:10:000
10313999361,20cyclictest14-21ksoftirqd/009:15:130
10313999311,70cyclictest0-21swapper/010:15:140
10313999259,21cyclictest14-21ksoftirqd/011:40:130
1031399919,29cyclictest0-21swapper/008:35:120
10313999155,22cyclictest14-21ksoftirqd/011:30:130
10313999114,66cyclictest0-21swapper/009:45:120
1002429129,49sleep10-21swapper/107:08:541
10313998955,21cyclictest0-21swapper/012:30:140
10313998951,27cyclictest14-21ksoftirqd/010:55:140
10313998946,31cyclictest14-21ksoftirqd/012:10:150
10313998857,20cyclictest14-21ksoftirqd/010:40:120
10313998810,63cyclictest20835-21diskmemload09:10:150
10313998750,27cyclictest14-21ksoftirqd/007:20:110
10313998545,29cyclictest14-21ksoftirqd/007:35:120
10313998450,24cyclictest14-21ksoftirqd/011:50:120
10313998337,35cyclictest14-21ksoftirqd/008:05:270
10313998111,58cyclictest0-21swapper/011:35:110
10313998039,31cyclictest14-21ksoftirqd/007:50:130
10313998011,58cyclictest0-21swapper/008:20:140
10313997931,34cyclictest14-21ksoftirqd/011:55:240
10317997632,28cyclictest26-21ksoftirqd/110:55:131
10313997534,29cyclictest0-21swapper/008:55:110
10313997530,33cyclictest0-21swapper/011:10:110
10313997427,31cyclictest0-21swapper/008:15:120
10313997333,29cyclictest0-21swapper/010:50:130
10313997332,29cyclictest0-21swapper/012:20:230
1031399728,50cyclictest0-21swapper/011:00:230
1031399723,52cyclictest0-21swapper/007:15:130
10313997232,27cyclictest0-21swapper/009:40:140
10313997224,31cyclictest0-21swapper/011:15:130
10313997126,29cyclictest0-21swapper/008:45:130
10313997124,38cyclictest10307-21cyclictest10:10:250
10313997031,30cyclictest0-21swapper/010:25:130
10313997028,28cyclictest0-21swapper/008:25:140
1031399693,51cyclictest0-21swapper/007:55:100
10313996919,28cyclictest0-21swapper/010:30:110
10313996824,26cyclictest0-21swapper/008:00:120
10313996712,39cyclictest0-21swapper/009:00:110
10313996623,31cyclictest0-21swapper/009:20:120
10313996516,28cyclictest0-21swapper/011:45:140
1031799642,12cyclictest14473-21apt-get11:55:061
10313996417,32cyclictest0-21swapper/012:15:130
10313996415,37cyclictest0-21swapper/009:35:130
10313996414,32cyclictest0-21swapper/012:00:120
10313996411,33cyclictest0-21swapper/007:10:110
10317996331,25cyclictest26-21ksoftirqd/109:15:011
10317996323,11cyclictest26-21ksoftirqd/110:39:001
10317996220,12cyclictest26-21ksoftirqd/112:30:351
10317996118,26cyclictest0-21swapper/108:45:161
10317996113,43cyclictest0-21swapper/108:05:571
1031799603,48cyclictest23318-21/usr/sbin/munin07:45:171
10317995922,21cyclictest26-21ksoftirqd/110:09:011
10317995912,29cyclictest0-21swapper/112:35:111
10317995838,7cyclictest26-21ksoftirqd/111:05:211
10317995833,9cyclictest26-21ksoftirqd/109:45:331
10317995810,8cyclictest151rcu_preempt09:09:001
1031799576,15cyclictest3464-21apt-get08:20:141
1031799575,14cyclictest4321-21apt-get09:55:121
10317995740,11cyclictest0-21swapper/109:53:361
10317995736,8cyclictest26-21ksoftirqd/108:35:331
10317995713,25cyclictest0-21swapper/112:15:161
10317995713,10cyclictest0-21swapper/110:28:061
10317995710,42cyclictest0-21swapper/107:39:141
1031799569,42cyclictest0-21swapper/108:25:321
1031799565,11cyclictest0-21swapper/110:00:331
10317995640,9cyclictest26-21ksoftirqd/108:40:161
10317995639,11cyclictest0-21swapper/108:15:311
10317995637,12cyclictest26-21ksoftirqd/109:35:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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