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2026-06-26 - 02:27
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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 Jun 26, 2026 00:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3252921100,5chrt31663-21/usr/sbin/munin22:05:361
12639910971,26cyclictest14-21ksoftirqd/000:05:140
1263991076,56cyclictest17356-21sshd21:25:120
12639910711,82cyclictest0-21swapper/023:40:120
12639910573,21cyclictest14-21ksoftirqd/023:00:110
12639910510,82cyclictest0-21swapper/019:10:120
12639910469,23cyclictest14-21ksoftirqd/021:35:130
12639910466,26cyclictest14-21ksoftirqd/020:40:130
12639910466,26cyclictest14-21ksoftirqd/020:40:130
1263991039,80cyclictest29932-21taskset22:00:130
12639910313,80cyclictest0-21swapper/022:15:130
12679910211,29cyclictest503-21snmpd19:50:121
12639910211,78cyclictest0-21swapper/021:15:120
12639910110,28cyclictest0-21swapper/019:20:110
12639910068,22cyclictest14-21ksoftirqd/000:00:200
12639910067,23cyclictest14-21ksoftirqd/021:45:120
12639910061,29cyclictest14-21ksoftirqd/022:30:130
1263999912,24cyclictest0-21swapper/022:25:140
1267999814,73cyclictest0-21swapper/121:30:111
1267999712,72cyclictest0-21swapper/121:40:221
1267999712,72cyclictest0-21swapper/121:40:221
1263999754,32cyclictest14-21ksoftirqd/022:20:150
1263999754,32cyclictest14-21ksoftirqd/022:20:150
1267999612,26cyclictest0-21swapper/119:30:111
1267999512,71cyclictest0-21swapper/119:10:111
1263999541,42cyclictest14-21ksoftirqd/000:35:120
1267999438,44cyclictest26-21ksoftirqd/119:20:121
1267999413,25cyclictest0-21swapper/119:35:151
1267999411,24cyclictest0-21swapper/121:05:161
126399948,70cyclictest3607-21taskset19:15:120
1263999453,29cyclictest0-21swapper/000:10:130
1267999311,27cyclictest0-21swapper/121:50:121
1267999212,22cyclictest0-21swapper/121:35:141
1267999210,25cyclictest0-21swapper/100:35:141
1263999247,31cyclictest14-21ksoftirqd/022:50:160
1267999113,23cyclictest0-21swapper/119:40:121
1267999113,23cyclictest0-21swapper/119:40:121
1267999112,24cyclictest0-21swapper/119:55:141
1267999112,22cyclictest0-21swapper/122:40:231
1267999110,24cyclictest0-21swapper/122:45:141
126399918,70cyclictest562-21runrttasks20:20:110
1263999143,34cyclictest14-21ksoftirqd/019:35:140
1263999113,28cyclictest0-21swapper/020:25:240
1267999013,68cyclictest0-21swapper/100:30:131
1267999012,22cyclictest0-21swapper/123:15:151
1267999010,26cyclictest0-21swapper/120:55:101
1267999010,24cyclictest0-21swapper/123:05:161
1263999047,32cyclictest14-21ksoftirqd/023:15:140
1263999045,31cyclictest14-21ksoftirqd/020:30:130
1263999040,35cyclictest14-21ksoftirqd/023:55:250
1263999012,64cyclictest0-21swapper/021:50:140
1263998913,60cyclictest0-21swapper/019:50:130
1263998911,63cyclictest0-21swapper/022:45:120
106628929,47sleep10-21swapper/119:09:211
1267998811,23cyclictest0-21swapper/121:55:131
1263998840,35cyclictest14-21ksoftirqd/023:45:150
1263998840,34cyclictest14-21ksoftirqd/000:20:150
1267998726,20cyclictest503-21snmpd20:40:231
1267998726,20cyclictest503-21snmpd20:40:231
1267998714,63cyclictest0-21swapper/120:50:101
126399879,63cyclictest3078-21munin-node23:05:140
1263998730,45cyclictest14-21ksoftirqd/021:00:140
1263998712,59cyclictest0-21swapper/023:30:110
1263998712,56cyclictest0-21swapper/019:40:120
1263998712,56cyclictest0-21swapper/019:40:120
1263998612,63cyclictest0-21swapper/020:10:120
1263998612,61cyclictest0-21swapper/020:00:110
1263998611,60cyclictest0-21swapper/021:05:140
1263998611,55cyclictest0-21swapper/000:15:120
126799859,24cyclictest6577-21apt-get22:25:151
126399857,63cyclictest14-21ksoftirqd/023:35:130
1263998522,43cyclictest14-21ksoftirqd/000:30:140
1263998511,60cyclictest0-21swapper/021:40:250
1263998511,60cyclictest0-21swapper/021:40:250
126799843,25cyclictest7909-40sh00:00:011
126399848,55cyclictest16862-21sshd00:25:120
126399846,58cyclictest11943-21diskmemload21:10:130
1263998412,60cyclictest0-21swapper/020:15:140
1263998412,57cyclictest0-21swapper/023:10:120
1267998320,20cyclictest243-21systemd-journal23:15:001
126399836,53cyclictest19102-21sshd21:30:120
126399829,57cyclictest0-21swapper/021:55:150
126399826,57cyclictest0-21swapper/020:50:120
1267998111,31cyclictest453-21in:imuxsock20:45:241
126399816,52cyclictest0-21swapper/019:25:140
1263998112,55cyclictest0-21swapper/021:20:120
126399807,55cyclictest503-21snmpd19:45:120
126799798,22cyclictest10053-21apt-get22:35:121
1263997935,34cyclictest0-21swapper/023:50:110
126799788,24cyclictest3072-21apt-get22:15:131
126799787,23cyclictest13355-21apt-get00:15:131
1263997824,35cyclictest14-21ksoftirqd/022:35:130
88127618,49sleep00-21swapper/019:07:550
126799767,23cyclictest3602-21apt-get19:15:131
1263997612,45cyclictest14-21ksoftirqd/022:55:170
126399757,47cyclictest14-21ksoftirqd/023:25:140
1263997516,39cyclictest14-21ksoftirqd/019:30:120
126399739,39cyclictest21410-21apt-get20:05:150
1263997326,26cyclictest0-21swapper/020:35:120
1263997222,33cyclictest0-21swapper/022:05:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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