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2026-06-25 - 10:54
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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 Thu Jun 25, 2026 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10157210014,39sleep00-21swapper/019:07:490
1014029419,30sleep10-21swapper/119:07:411
10551998333,45cyclictest26-21ksoftirqd/121:34:281
43212760,6chrt261ksoftirqd/121:50:291
10551997052,12cyclictest26-21ksoftirqd/122:40:111
10549996946,17cyclictest0-21swapper/020:05:120
1054999674,55cyclictest5381-21apt-get23:25:110
10551996623,39cyclictest26-21ksoftirqd/123:00:371
1054999658,27cyclictest14-21ksoftirqd/000:00:240
1054999657,16cyclictest0-21swapper/022:55:120
1054999656,19cyclictest14156-21apt-get23:50:130
1055199642,36cyclictest151rcu_preempt21:05:321
10551996412,19cyclictest0-21swapper/119:50:141
10549996435,24cyclictest14-21ksoftirqd/021:55:280
222862630,7chrt22285-21apt-get19:40:151
1055199634,37cyclictest0-21swapper/123:37:221
10551996312,32cyclictest14201-21latency_hist20:50:011
1054999637,50cyclictest0-21swapper/019:50:120
1054999636,16cyclictest0-21swapper/020:20:120
1054999625,52cyclictest0-21swapper/019:35:250
1054999625,16cyclictest0-21swapper/023:55:200
10551996115,9cyclictest26-21ksoftirqd/120:00:191
1054999617,13cyclictest14-21ksoftirqd/019:10:250
10549996138,17cyclictest14-21ksoftirqd/021:00:270
10551996036,9cyclictest26-21ksoftirqd/122:09:421
1055199603,15cyclictest26-21ksoftirqd/123:55:241
10551995941,11cyclictest26-21ksoftirqd/123:25:111
10551995915,39cyclictest26-21ksoftirqd/119:20:201
10551995914,41cyclictest0-21swapper/122:30:201
1054999596,47cyclictest0-21swapper/020:15:150
10549995936,17cyclictest14-21ksoftirqd/021:37:490
10549995928,26cyclictest14-21ksoftirqd/020:00:000
1055199583,51cyclictest32538-21/usr/sbin/munin21:40:371
10551995834,9cyclictest26-21ksoftirqd/123:55:001
1055199582,19cyclictest19777-21apt-config19:35:021
10551995813,41cyclictest0-21swapper/120:30:151
10549995840,12cyclictest14-21ksoftirqd/021:15:140
10549995836,17cyclictest14-21ksoftirqd/020:40:410
10549995835,18cyclictest14-21ksoftirqd/022:18:030
10549995824,19cyclictest14-21ksoftirqd/019:20:130
10551995712,9cyclictest0-21swapper/100:15:141
1054999579,43cyclictest0-21swapper/023:15:260
10549995740,12cyclictest989-21python323:10:340
91952566,37sleep00-21swapper/023:35:200
1055199567,20cyclictest11229-21apt-get22:10:131
1055199565,47cyclictest0-21swapper/120:26:111
1055199565,30cyclictest0-21swapper/119:15:341
10551995633,9cyclictest26-21ksoftirqd/100:36:061
10551995629,14cyclictest0-21swapper/120:40:121
10551995611,40cyclictest0-21swapper/100:05:121
10551995611,10cyclictest0-21swapper/119:55:121
10551995610,10cyclictest26-21ksoftirqd/119:10:231
10549995633,17cyclictest14-21ksoftirqd/023:40:540
1054999562,18cyclictest22266-21taskset19:40:050
1055199559,42cyclictest0-21swapper/121:55:181
10551995540,10cyclictest0-21swapper/123:23:461
10551995539,11cyclictest243-21systemd-journal21:10:021
10551995531,9cyclictest26-21ksoftirqd/122:00:171
10551995531,9cyclictest26-21ksoftirqd/122:00:171
10549995531,18cyclictest14-21ksoftirqd/022:33:300
10549995523,12cyclictest14-21ksoftirqd/022:12:510
1054999552,17cyclictest5202-21date21:55:010
10549995514,11cyclictest171rcuc/022:45:130
1055199549,41cyclictest0-21swapper/100:00:131
1055199547,42cyclictest26-21ksoftirqd/100:25:191
1055199546,12cyclictest0-21swapper/121:25:311
1055199545,45cyclictest0-21swapper/120:59:271
10551995411,39cyclictest26-21ksoftirqd/120:50:251
10551995411,39cyclictest0-21swapper/100:10:161
10551995411,38cyclictest0-21swapper/120:05:111
10551995410,40cyclictest0-21swapper/122:55:141
10549995436,12cyclictest826-21irqstats20:10:240
10549995431,17cyclictest25122-21cron00:20:010
10549995430,18cyclictest14-21ksoftirqd/000:07:480
10549995426,12cyclictest14-21ksoftirqd/022:20:410
1054999542,48cyclictest8543-21taskset23:33:300
10549995424,13cyclictest14-21ksoftirqd/021:10:200
10549995419,15cyclictest14-21ksoftirqd/019:33:590
10549995414,12cyclictest171rcuc/021:20:310
10549995414,11cyclictest171rcuc/000:30:230
10549995413,12cyclictest171rcuc/000:10:300
10549995413,11cyclictest171rcuc/021:30:160
1055199539,39cyclictest26-21ksoftirqd/123:10:191
1055199539,39cyclictest0-21swapper/122:50:261
1055199538,41cyclictest0-21swapper/119:25:301
1055199538,40cyclictest0-21swapper/123:30:211
1055199536,42cyclictest0-21swapper/121:45:211
10551995338,10cyclictest4127-21grep20:20:181
1055199533,16cyclictest168-21usb-storage22:15:311
10551995329,9cyclictest26-21ksoftirqd/121:24:141
10551995310,38cyclictest0-21swapper/123:05:111
1054999536,17cyclictest0-21swapper/019:45:140
10549995332,17cyclictest31611-21awk00:35:360
10549995323,13cyclictest14-21ksoftirqd/020:35:000
10549995321,28cyclictest0-21swapper/022:44:570
10549995314,11cyclictest171rcuc/020:45:230
10549995313,36cyclictest9560-21aten2.4_r3power22:05:250
10549995311,17cyclictest17325-21load22:25:260
1055199526,42cyclictest0-21swapper/120:10:201
10551995236,10cyclictest251rcuc/122:20:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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