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2026-05-01 - 05:32
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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 Fri May 01, 2026 00:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1171321100,6chrt11716-21missed_timers21:25:271
277039910277,12cyclictest14-21ksoftirqd/023:55:150
27703999981,9cyclictest14-21ksoftirqd/022:05:100
2713029916,38sleep00-21swapper/019:05:490
27703999779,9cyclictest14-21ksoftirqd/019:25:140
27703999772,15cyclictest14-21ksoftirqd/000:00:140
27703999679,12cyclictest14-21ksoftirqd/000:15:410
27703999262,17cyclictest14-21ksoftirqd/022:30:160
27703999065,17cyclictest14-21ksoftirqd/023:05:150
27703999063,14cyclictest14-21ksoftirqd/021:20:130
27703998961,18cyclictest14-21ksoftirqd/022:55:230
27703998858,17cyclictest14-21ksoftirqd/020:10:140
27703998766,10cyclictest14-21ksoftirqd/021:05:150
27703998760,18cyclictest14-21ksoftirqd/019:40:140
27703998759,18cyclictest14-21ksoftirqd/021:30:130
27703998758,19cyclictest14-21ksoftirqd/022:00:130
27703998758,16cyclictest14-21ksoftirqd/023:15:150
2668728710,65sleep126739-21ps19:05:251
168492870,6chrt0-21swapper/121:40:221
27703998458,17cyclictest14-21ksoftirqd/020:30:140
27703998455,19cyclictest14-21ksoftirqd/021:00:130
27703998250,23cyclictest14-21ksoftirqd/023:30:150
27709998050,13cyclictest503-21snmpd19:52:031
27703998054,18cyclictest14-21ksoftirqd/020:40:100
27703997949,19cyclictest14-21ksoftirqd/023:50:170
27703997851,19cyclictest14-21ksoftirqd/019:20:140
27703997851,18cyclictest14-21ksoftirqd/019:30:110
27703997851,18cyclictest14-21ksoftirqd/019:30:110
27703997749,18cyclictest14-21ksoftirqd/019:55:120
2770399768,31cyclictest11134-21runrttasks21:25:140
27709997527,42cyclictest26-21ksoftirqd/122:35:331
27703997544,21cyclictest14-21ksoftirqd/020:55:120
27709997410,15cyclictest0-21swapper/122:00:141
27703997447,17cyclictest14-21ksoftirqd/020:45:130
27703997344,19cyclictest14-21ksoftirqd/020:05:120
27703997344,17cyclictest14-21ksoftirqd/000:20:110
27703997343,18cyclictest14-21ksoftirqd/022:10:150
27703997341,19cyclictest14-21ksoftirqd/022:15:150
27703997239,19cyclictest14-21ksoftirqd/019:15:150
27703997142,19cyclictest0-21swapper/021:15:160
27703997140,19cyclictest14-21ksoftirqd/021:10:140
27703997040,17cyclictest0-21swapper/020:15:150
27703997014,50cyclictest0-21swapper/021:40:110
2770999682,21cyclictest24311-21head20:30:171
27703996840,17cyclictest0-21swapper/023:45:130
27703996813,50cyclictest0-21swapper/020:25:110
27703996714,39cyclictest0-21swapper/022:25:110
27703996713,43cyclictest0-21swapper/000:35:140
27703996641,16cyclictest0-21swapper/000:30:130
2770399662,26cyclictest7409-21df22:45:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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