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2026-08-07 - 16:12
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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 Fri Aug 07, 2026 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1392621130,6chrt13895-21apt-get09:10:301
2908999570,11cyclictest14-21ksoftirqd/009:40:120
2908999469,12cyclictest14-21ksoftirqd/011:25:130
2908999367,16cyclictest14-21ksoftirqd/008:05:180
2908999367,13cyclictest14-21ksoftirqd/010:30:120
2908999365,15cyclictest14-21ksoftirqd/011:35:130
2908999265,14cyclictest14-21ksoftirqd/007:55:160
2908999165,16cyclictest14-21ksoftirqd/009:15:120
247629126,17sleep10-21swapper/107:07:231
2908998964,13cyclictest14-21ksoftirqd/010:35:120
2908998961,14cyclictest14-21ksoftirqd/011:00:140
2908998765,13cyclictest14-21ksoftirqd/008:40:100
2908998556,18cyclictest14-21ksoftirqd/012:25:110
2908998254,18cyclictest14-21ksoftirqd/008:15:160
2908998254,17cyclictest14-21ksoftirqd/009:50:130
2908998253,19cyclictest14-21ksoftirqd/012:20:140
2908998153,17cyclictest14-21ksoftirqd/008:00:120
2908998051,18cyclictest14-21ksoftirqd/012:00:120
2908998050,19cyclictest14-21ksoftirqd/012:05:130
2908997951,16cyclictest0-21swapper/009:30:120
2908997950,18cyclictest14-21ksoftirqd/009:05:130
2908997853,16cyclictest14-21ksoftirqd/011:05:250
290899785,11cyclictest0-21swapper/011:52:350
2908997740,21cyclictest14-21ksoftirqd/011:20:150
276527414,50sleep00-21swapper/007:09:560
2908997242,20cyclictest14-21ksoftirqd/008:10:120
2908997240,19cyclictest14-21ksoftirqd/011:10:120
2908997214,50cyclictest0-21swapper/010:15:140
2908997141,17cyclictest0-21swapper/007:20:150
2908997141,17cyclictest0-21swapper/007:20:150
2908997140,18cyclictest0-21swapper/009:55:130
2908997039,20cyclictest14-21ksoftirqd/011:15:130
2908997039,18cyclictest0-21swapper/010:50:110
2908997037,18cyclictest0-21swapper/010:05:140
2908997019,38cyclictest0-21swapper/007:45:100
2912996922,15cyclictest26-21ksoftirqd/112:40:011
2908996946,16cyclictest14-21ksoftirqd/008:55:110
2908996941,15cyclictest0-21swapper/008:20:110
2908996941,15cyclictest0-21swapper/008:20:110
2908996940,16cyclictest0-21swapper/011:55:150
2908996939,17cyclictest0-21swapper/009:00:130
2912996827,16cyclictest26-21ksoftirqd/108:20:011
2908996839,22cyclictest0-21swapper/010:57:590
2908996839,16cyclictest0-21swapper/007:30:150
2908996813,34cyclictest30924-21aten2.4-expect11:30:160
2912996729,15cyclictest26-21ksoftirqd/112:25:011
2908996739,16cyclictest0-21swapper/012:15:150
2908996738,17cyclictest0-21swapper/007:10:130
2908996737,18cyclictest0-21swapper/010:40:140
2908996737,18cyclictest0-21swapper/010:40:140
2908996712,24cyclictest20233-21runrttasks12:30:290
2908996712,24cyclictest0-21swapper/010:47:180
28622670,7sleep0171rcuc/010:10:180
2912996618,17cyclictest1-21systemd07:38:361
290899667,39cyclictest31814-21sort08:30:010
2908996636,17cyclictest0-21swapper/007:15:130
2908996626,27cyclictest0-21swapper/009:20:140
2908996624,36cyclictest26329-21aten2.4-expect09:45:170
2908996623,18cyclictest14770-21python309:10:480
2908996612,11cyclictest0-21swapper/009:25:320
290899654,18cyclictest0-21swapper/011:40:200
2908996541,13cyclictest0-21swapper/012:35:130
2908996538,15cyclictest0-21swapper/007:50:110
2908996537,16cyclictest0-21swapper/008:45:150
2908996529,21cyclictest0-21swapper/007:25:140
2908996423,35cyclictest6132-21aten2.4-expect10:20:150
2908996423,35cyclictest6132-21aten2.4-expect10:20:150
290899642,20cyclictest0-21swapper/010:25:310
2908996412,21cyclictest457-21dbus-daemon12:15:000
2912996325,16cyclictest26-21ksoftirqd/110:15:001
290899634,30cyclictest0-21swapper/008:31:050
2908996336,16cyclictest0-21swapper/011:45:140
2908996319,38cyclictest243-21systemd-journal08:39:270
2908996319,20cyclictest243-21systemd-journal07:43:240
2912996227,14cyclictest26-21ksoftirqd/112:30:001
2912996218,15cyclictest26-21ksoftirqd/108:09:001
2908996214,40cyclictest12670-21aten2.4-expect07:35:270
2908996211,25cyclictest6570-21taskset08:50:110
154542620,5chrt0-21swapper/107:40:341
2912996125,24cyclictest26-21ksoftirqd/109:30:001
2912996125,16cyclictest26-21ksoftirqd/108:15:001
2912996119,15cyclictest26-21ksoftirqd/109:25:011
2912996114,15cyclictest26-21ksoftirqd/109:55:131
2908996132,17cyclictest0-21swapper/010:00:150
2908996112,10cyclictest0-21swapper/009:35:210
2912996026,15cyclictest26-21ksoftirqd/111:45:011
2912996020,13cyclictest26-21ksoftirqd/110:09:001
2912996014,22cyclictest562-21runrttasks07:11:381
2912996013,41cyclictest0-21swapper/108:25:201
2912996013,15cyclictest151rcu_preempt11:05:051
2912996012,42cyclictest0-21swapper/111:20:261
2912995928,14cyclictest26-21ksoftirqd/108:35:391
2912995925,15cyclictest26-21ksoftirqd/110:05:011
2912995920,20cyclictest26-21ksoftirqd/108:30:131
2912995920,15cyclictest26-21ksoftirqd/112:09:001
2912995915,18cyclictest5291-21irqstats08:45:231
2912995914,23cyclictest26-21ksoftirqd/111:00:221
2912995912,21cyclictest26-21ksoftirqd/107:19:121
291299587,44cyclictest0-21swapper/109:15:341
2912995832,12cyclictest26-21ksoftirqd/109:40:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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