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2026-04-27 - 08:43
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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 Mon Apr 27, 2026 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5837999646,21cyclictest14-21ksoftirqd/000:20:160
535629133,47sleep10-21swapper/119:07:001
5837999047,30cyclictest14-21ksoftirqd/019:40:220
5848998431,47cyclictest26-21ksoftirqd/120:10:371
583799836,67cyclictest19024-21apt-get21:15:150
5837998245,15cyclictest14-21ksoftirqd/019:50:310
5837998244,23cyclictest14-21ksoftirqd/023:45:150
5848998062,11cyclictest26-21ksoftirqd/123:50:121
5848998062,11cyclictest26-21ksoftirqd/123:50:121
584899804,22cyclictest26-21ksoftirqd/120:55:341
554327919,51sleep00-21swapper/019:09:000
5837997844,22cyclictest14-21ksoftirqd/022:10:160
5837997841,23cyclictest14-21ksoftirqd/020:31:590
5837997813,8cyclictest151rcu_preempt20:50:010
5837997647,14cyclictest14-21ksoftirqd/019:10:300
5837997546,16cyclictest14-21ksoftirqd/000:27:040
5837997545,24cyclictest14-21ksoftirqd/000:00:190
5848997355,12cyclictest26-21ksoftirqd/123:25:131
5837997343,15cyclictest14-21ksoftirqd/020:35:200
5837997339,23cyclictest14-21ksoftirqd/022:23:110
5837997337,31cyclictest14-21ksoftirqd/022:58:330
5837997238,15cyclictest14-21ksoftirqd/021:10:020
584899717,43cyclictest26-21ksoftirqd/123:04:551
5837997143,22cyclictest14-21ksoftirqd/023:50:180
5837997143,22cyclictest14-21ksoftirqd/023:50:180
5837997140,14cyclictest14-21ksoftirqd/021:50:370
5837997138,22cyclictest14-21ksoftirqd/023:20:350
5848997053,10cyclictest26-21ksoftirqd/100:15:161
5837997043,15cyclictest14-21ksoftirqd/000:35:190
5837997039,14cyclictest14-21ksoftirqd/000:33:380
5837997038,21cyclictest14-21ksoftirqd/000:10:150
5837997016,41cyclictest25838-21munin-run21:35:010
5837996940,23cyclictest14-21ksoftirqd/020:20:180
5837996938,20cyclictest14-21ksoftirqd/021:55:170
5837996938,20cyclictest14-21ksoftirqd/021:39:190
5848996850,10cyclictest26-21ksoftirqd/122:45:161
5848996818,37cyclictest26-21ksoftirqd/121:10:361
5837996837,20cyclictest14-21ksoftirqd/019:30:330
5848996750,12cyclictest0-21swapper/120:15:141
5837996645,15cyclictest14-21ksoftirqd/022:31:550
5837996637,16cyclictest14-21ksoftirqd/000:05:230
5837996637,16cyclictest14-21ksoftirqd/000:05:230
5848996512,33cyclictest251rcuc/120:50:141
5837996538,21cyclictest14-21ksoftirqd/022:04:430
5837996526,9cyclictest16972-21find21:09:000
5837996514,14cyclictest14-21ksoftirqd/021:20:280
5848996447,11cyclictest26-21ksoftirqd/121:05:131
5848996416,12cyclictest26-21ksoftirqd/100:00:331
5837996437,15cyclictest14-21ksoftirqd/019:39:550
5837996436,15cyclictest14-21ksoftirqd/022:05:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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