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2026-06-21 - 15:09
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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 Sun Jun 21, 2026 12:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
282869913073,18cyclictest14-21ksoftirqd/010:50:110
282869911817,48cyclictest0-21swapper/012:35:130
282869911811,64cyclictest0-21swapper/008:50:110
282869911184,17cyclictest14-21ksoftirqd/007:25:220
282869911184,17cyclictest14-21ksoftirqd/007:25:220
282869911113,54cyclictest0-21swapper/009:45:130
282869911113,54cyclictest0-21swapper/009:45:130
282869910878,17cyclictest14-21ksoftirqd/009:15:220
282869910772,21cyclictest14-21ksoftirqd/007:20:120
282979910612,71cyclictest0-21swapper/111:10:121
282979910612,71cyclictest0-21swapper/111:10:121
282869910676,19cyclictest14-21ksoftirqd/011:35:130
282869910576,16cyclictest14-21ksoftirqd/008:10:110
282869910480,13cyclictest14-21ksoftirqd/010:10:140
282979910312,67cyclictest0-21swapper/112:05:131
282869910278,15cyclictest14-21ksoftirqd/012:20:110
282979910010,67cyclictest0-21swapper/108:00:121
28297999912,65cyclictest0-21swapper/109:50:131
28297999810,67cyclictest0-21swapper/108:25:221
28297999810,67cyclictest0-21swapper/108:25:221
28286999869,20cyclictest14-21ksoftirqd/010:55:150
28286999868,20cyclictest14-21ksoftirqd/008:55:130
2829799978,70cyclictest0-21swapper/109:30:121
2829799978,66cyclictest0-21swapper/108:30:121
28286999773,14cyclictest14-21ksoftirqd/011:40:110
28297999610,66cyclictest0-21swapper/110:05:151
28286999668,19cyclictest14-21ksoftirqd/009:40:120
28286999618,63cyclictest0-21swapper/010:45:130
28286999618,63cyclictest0-21swapper/010:45:130
2829799957,66cyclictest0-21swapper/112:15:141
28297999513,62cyclictest0-21swapper/112:25:151
28297999510,64cyclictest0-21swapper/108:40:121
28286999569,16cyclictest14-21ksoftirqd/009:10:110
28286999561,23cyclictest14-21ksoftirqd/008:15:130
28286999465,17cyclictest14-21ksoftirqd/008:00:140
2829799938,64cyclictest0-21swapper/107:10:151
28297999310,66cyclictest0-21swapper/107:25:231
28297999310,66cyclictest0-21swapper/107:25:231
2829799928,63cyclictest0-21swapper/109:25:141
2829799928,63cyclictest0-21swapper/109:25:141
2829799928,63cyclictest0-21swapper/108:50:131
28297999210,63cyclictest0-21swapper/107:45:101
28297999210,59cyclictest0-21swapper/109:55:101
28286999260,19cyclictest14-21ksoftirqd/011:50:120
28286999260,19cyclictest14-21ksoftirqd/011:50:120
2829799918,63cyclictest0-21swapper/108:55:111
28297999110,63cyclictest0-21swapper/111:55:231
28286999156,25cyclictest14-21ksoftirqd/011:55:210
2829799909,64cyclictest0-21swapper/107:55:231
2829799908,64cyclictest0-21swapper/110:55:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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