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2025-09-18 - 08:09
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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 highest latencies:
System rack3slot6.osadl.org (updated Thu Sep 18, 2025 00:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202729910977,20cyclictest26-21ksoftirqd/119:15:181
202729910679,17cyclictest26-21ksoftirqd/121:30:161
202729910576,19cyclictest26-21ksoftirqd/119:20:141
202729910472,21cyclictest26-21ksoftirqd/120:55:151
20272999968,21cyclictest26-21ksoftirqd/100:35:141
20272999768,20cyclictest26-21ksoftirqd/122:35:141
20272999765,19cyclictest26-21ksoftirqd/119:35:121
295452950,33sleep014-21ksoftirqd/021:10:000
20272999365,17cyclictest26-21ksoftirqd/122:30:151
1886129335,44sleep00-21swapper/019:05:180
20272999125,54cyclictest0-21swapper/119:50:161
2026899915,36cyclictest1-21systemd20:00:110
20272999061,19cyclictest26-21ksoftirqd/122:55:171
20272998960,19cyclictest26-21ksoftirqd/122:50:131
20272998956,21cyclictest26-21ksoftirqd/121:15:141
20272998932,47cyclictest0-21swapper/119:40:141
1982528932,45sleep10-21swapper/119:07:131
20272998857,19cyclictest26-21ksoftirqd/121:25:161
20272998851,25cyclictest26-21ksoftirqd/100:25:151
20272998851,25cyclictest26-21ksoftirqd/100:25:141
20272998850,26cyclictest26-21ksoftirqd/119:30:171
20272998756,21cyclictest26-21ksoftirqd/122:05:161
20272998755,20cyclictest26-21ksoftirqd/121:10:121
20268998710,24cyclictest0-21swapper/023:19:390
20272998656,19cyclictest26-21ksoftirqd/123:05:151
20272998653,21cyclictest26-21ksoftirqd/100:10:161
20272998648,26cyclictest26-21ksoftirqd/100:00:101
20272998559,17cyclictest26-21ksoftirqd/119:10:131
20272998551,23cyclictest26-21ksoftirqd/121:00:131
20272998446,26cyclictest26-21ksoftirqd/121:20:131
20272998434,37cyclictest26-21ksoftirqd/123:30:101
20272998351,20cyclictest26-21ksoftirqd/120:35:161
20272998253,20cyclictest26-21ksoftirqd/120:40:131
20272998253,20cyclictest26-21ksoftirqd/120:40:121
20272998249,22cyclictest26-21ksoftirqd/119:55:241
20272998248,23cyclictest26-21ksoftirqd/120:15:141
20272998245,25cyclictest26-21ksoftirqd/100:30:171
20272998212,35cyclictest0-21swapper/120:05:141
20272998145,24cyclictest26-21ksoftirqd/123:25:121
20272998111,59cyclictest36-21kcompactd023:35:151
20268998134,28cyclictest14-21ksoftirqd/020:15:570
2027299809,58cyclictest13983-21seq22:00:151
2027299809,56cyclictest7863-21sshd23:15:151
2027299808,58cyclictest9855-21runrttasks21:45:121
20272997942,26cyclictest26-21ksoftirqd/122:10:151
20272997912,56cyclictest0-21swapper/122:20:161
20272997842,25cyclictest26-21ksoftirqd/123:10:171
20272997836,31cyclictest26-21ksoftirqd/123:45:151
20272997812,53cyclictest0-21swapper/120:45:141
20272997812,35cyclictest0-21swapper/122:15:131
20268997824,36cyclictest14-21ksoftirqd/023:50:150
20272997716,45cyclictest26-21ksoftirqd/120:10:131
20272997710,56cyclictest0-21swapper/123:50:151
20272997412,50cyclictest0-21swapper/119:25:101
20272997332,29cyclictest26-21ksoftirqd/123:20:151
20272997238,26cyclictest20262-21cyclictest00:05:151
20272997238,26cyclictest20262-21cyclictest00:05:141
20272997234,26cyclictest0-21swapper/123:40:141
20272997233,27cyclictest0-21swapper/100:20:161
2027299716,52cyclictest0-21swapper/120:00:131
20272997137,23cyclictest0-21swapper/122:40:131
20272996925,32cyclictest0-21swapper/121:55:091
20268996947,15cyclictest31043-21apt-get00:20:150
2027299688,45cyclictest26-21ksoftirqd/120:20:151
2027299683,53cyclictest0-21swapper/120:25:131
20272996827,33cyclictest20262-21cyclictest20:30:111
20272996825,28cyclictest0-21swapper/121:35:161
20272996825,28cyclictest0-21swapper/121:35:151
20268996833,29cyclictest14-21ksoftirqd/021:20:250
20268996833,29cyclictest14-21ksoftirqd/020:45:580
20268996810,53cyclictest0-21swapper/022:50:450
20272996724,25cyclictest0-21swapper/100:15:151
20272996722,34cyclictest0-21swapper/122:45:111
2026899678,19cyclictest8118-21apt-get21:40:140
20272996623,29cyclictest0-21swapper/120:50:151
20272996619,31cyclictest0-21swapper/123:55:141
20268996624,28cyclictest14-21ksoftirqd/021:15:130
20272996522,29cyclictest0-21swapper/121:40:141
20272996519,29cyclictest0-21swapper/119:45:121
20268996524,28cyclictest14-21ksoftirqd/020:35:180
20272996410,37cyclictest26-21ksoftirqd/122:25:131
20268996436,9cyclictest14-21ksoftirqd/023:48:070
20268996435,17cyclictest14-21ksoftirqd/020:41:450
20268996435,17cyclictest14-21ksoftirqd/020:41:440
20268996423,28cyclictest14-21ksoftirqd/021:00:290
20272996326,27cyclictest0-21swapper/123:00:151
20268996235,20cyclictest14-21ksoftirqd/022:40:190
20268996233,9cyclictest14-21ksoftirqd/023:20:350
20268996233,22cyclictest14-21ksoftirqd/019:10:330
20268996233,17cyclictest14-21ksoftirqd/000:19:550
20268996227,20cyclictest14-21ksoftirqd/019:40:310
20268996136,19cyclictest14-21ksoftirqd/020:25:180
20268996128,28cyclictest14-21ksoftirqd/021:10:330
20268996125,23cyclictest0-21swapper/022:20:140
20268996125,21cyclictest14-21ksoftirqd/022:45:360
20268996120,17cyclictest25796-21aten2.4-expect00:05:200
20268996120,17cyclictest25796-21aten2.4-expect00:05:190
2026899607,16cyclictest27552-21apt-get00:10:150
20268996034,20cyclictest14-21ksoftirqd/023:05:350
20268995936,10cyclictest14-21ksoftirqd/021:32:050
2026899585,37cyclictest15193-21apt-get23:35:150
20268995829,22cyclictest14-21ksoftirqd/020:55:020
20268995821,31cyclictest6219-21aten2.4-expect23:10:190
20268995817,16cyclictest24082-21aten2.4-expect00:00:140
2026899578,43cyclictest171rcuc/019:55:060
20268995740,10cyclictest14-21ksoftirqd/000:35:010
20268995739,12cyclictest14-21ksoftirqd/000:30:010
20268995739,12cyclictest14-21ksoftirqd/000:30:000
20268995733,9cyclictest14-21ksoftirqd/022:17:340
20268995733,19cyclictest14-21ksoftirqd/021:35:200
20268995733,19cyclictest14-21ksoftirqd/021:35:190
2026899573,17cyclictest4086-21cron21:30:010
20268995722,29cyclictest504-21snmpd23:01:370
20268995722,20cyclictest14-21ksoftirqd/020:30:230
20268995718,33cyclictest26245-21cut19:25:140
20268995717,33cyclictest22771-21aten2.4-expect19:15:190
2026899564,45cyclictest28321-21irqstats19:30:260
20268995639,10cyclictest14-21ksoftirqd/020:15:010
20268995638,10cyclictest14-21ksoftirqd/022:14:590
20268995638,10cyclictest14-21ksoftirqd/019:50:330
20268995637,11cyclictest14-21ksoftirqd/019:40:010
20268995634,16cyclictest14-21ksoftirqd/020:59:060
20268995624,27cyclictest14-21ksoftirqd/022:06:270
20268995539,9cyclictest14-21ksoftirqd/021:45:130
20268995539,10cyclictest14-21ksoftirqd/020:05:170
20268995539,10cyclictest14-21ksoftirqd/000:35:240
20268995538,11cyclictest14-21ksoftirqd/020:20:240
20268995538,10cyclictest14-21ksoftirqd/022:25:360
20268995538,10cyclictest14-21ksoftirqd/022:05:010
20268995538,10cyclictest14-21ksoftirqd/019:20:220
20268995537,10cyclictest14-21ksoftirqd/000:00:010
20268995532,18cyclictest14-21ksoftirqd/021:55:120
20268995530,20cyclictest14-21ksoftirqd/022:30:340
20268995529,19cyclictest254-21systemd-journal21:52:140
20272995420,21cyclictest26-21ksoftirqd/121:09:021
20268995437,9cyclictest14-21ksoftirqd/023:35:000
20268995437,10cyclictest14-21ksoftirqd/022:55:360
20268995337,10cyclictest14-21ksoftirqd/019:45:120
20268995336,10cyclictest14-21ksoftirqd/023:40:200
2026899533,43cyclictest27366-21users22:35:380
20268995313,18cyclictest11478-21aten2.4-expect23:25:170
20272995013,20cyclictest26-21ksoftirqd/121:52:521
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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