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2025-10-25 - 10:28
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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 Sat Oct 25, 2025 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
227029911721,31cyclictest7883-21kworker/1:223:15:121
226989911013,34cyclictest0-21swapper/020:30:130
227029910875,22cyclictest26-21ksoftirqd/119:25:121
227029910775,20cyclictest26-21ksoftirqd/120:25:141
226989910612,31cyclictest0-21swapper/022:25:130
227029910263,29cyclictest26-21ksoftirqd/119:30:161
226989910212,29cyclictest0-21swapper/019:20:140
226989910211,26cyclictest0-21swapper/000:35:100
22235210220,29sleep10-21swapper/119:06:561
227029910161,29cyclictest26-21ksoftirqd/119:20:151
227029910159,31cyclictest26-21ksoftirqd/119:40:151
227029910053,34cyclictest26-21ksoftirqd/100:00:131
22698999714,21cyclictest0-21swapper/023:10:130
22702999647,32cyclictest26-21ksoftirqd/120:00:261
22702999554,30cyclictest26-21ksoftirqd/119:15:161
22702999546,39cyclictest26-21ksoftirqd/122:45:121
22702999543,38cyclictest26-21ksoftirqd/120:20:241
22702999542,42cyclictest26-21ksoftirqd/120:45:151
22702999539,42cyclictest26-21ksoftirqd/123:35:151
22702999444,32cyclictest26-21ksoftirqd/123:20:171
22702999336,42cyclictest26-21ksoftirqd/120:05:121
22702999316,61cyclictest0-21swapper/119:10:141
22702999312,65cyclictest0-21swapper/121:30:141
2228729312,37sleep00-21swapper/019:07:310
2270299918,66cyclictest917-21sendmail-mta23:10:131
22702999146,32cyclictest0-21swapper/119:45:151
22702999114,63cyclictest0-21swapper/122:50:131
2270299907,65cyclictest6372-21runrttasks21:25:141
22702999033,44cyclictest26-21ksoftirqd/123:55:251
22702999022,54cyclictest0-21swapper/100:15:141
22702999018,53cyclictest0-21swapper/121:15:151
22702999012,59cyclictest0-21swapper/121:50:131
22702999010,62cyclictest0-21swapper/120:10:131
22702998939,28cyclictest26-21ksoftirqd/100:25:181
22702998835,34cyclictest26-21ksoftirqd/120:50:171
22702998812,63cyclictest0-21swapper/119:55:091
22702998812,61cyclictest0-21swapper/123:40:131
22698998812,31cyclictest0-21swapper/023:55:230
22702998712,58cyclictest0-21swapper/121:45:111
22702998712,54cyclictest0-21swapper/121:05:151
22702998712,52cyclictest0-21swapper/120:35:111
22702998710,57cyclictest0-21swapper/121:40:121
22702998638,36cyclictest0-21swapper/122:40:141
22702998611,57cyclictest0-21swapper/122:35:151
22702998611,54cyclictest0-21swapper/121:00:151
22702998510,58cyclictest0-21swapper/123:30:241
22702998421,44cyclictest26-21ksoftirqd/100:35:131
22702998410,59cyclictest0-21swapper/100:05:131
2270299839,55cyclictest960-21diskmemload21:10:151
22702998338,31cyclictest0-21swapper/122:20:141
2270299829,51cyclictest0-21swapper/122:15:141
22702998232,35cyclictest0-21swapper/123:50:121
22702998130,33cyclictest0-21swapper/122:10:121
22702998032,33cyclictest0-21swapper/122:00:131
2270299799,50cyclictest0-21swapper/100:10:131
2270299794,52cyclictest0-21swapper/119:35:151
22702997930,35cyclictest0-21swapper/120:30:121
22702997928,35cyclictest0-21swapper/123:45:131
22702997830,31cyclictest0-21swapper/122:55:151
22702997826,32cyclictest0-21swapper/121:35:141
22702997811,51cyclictest0-21swapper/123:05:161
22702997730,29cyclictest0-21swapper/123:00:141
22702997725,33cyclictest26-21ksoftirqd/123:25:111
22702997710,46cyclictest0-21swapper/120:55:131
22702997629,28cyclictest0-21swapper/100:30:141
22702997628,31cyclictest0-21swapper/100:20:111
22702997628,30cyclictest0-21swapper/120:40:161
22702997428,29cyclictest0-21swapper/122:30:141
22702997427,28cyclictest0-21swapper/121:20:141
22702997424,33cyclictest22692-21cyclictest21:55:161
22702997411,43cyclictest0-21swapper/122:25:151
22702997228,28cyclictest26-21ksoftirqd/119:50:151
2270299714,48cyclictest0-21swapper/122:05:151
323282700,6chrt32330-21missed_timers21:05:270
22702996913,36cyclictest0-21swapper/120:15:161
2269899686,53cyclictest21232-21apt-get20:35:140
22698996724,26cyclictest0-21swapper/022:45:130
2269899665,35cyclictest0-21swapper/023:20:300
22698996639,19cyclictest9411-21aten2.4-expect23:05:190
22698996635,24cyclictest14-21ksoftirqd/021:45:310
2269899657,18cyclictest30285-21apt-get19:30:160
22698996419,19cyclictest11718-21aten2.4-expect21:40:170
22698996318,21cyclictest17004-21aten2.4-expect21:55:200
292802610,6chrt29278-21grep20:55:360
2269899617,46cyclictest4630-21apt-get21:20:140
22698996035,19cyclictest14-21ksoftirqd/023:30:260
22698996033,21cyclictest14-21ksoftirqd/021:15:170
22698996025,30cyclictest24856-21aten2.4-expect20:45:190
2269899597,17cyclictest7544-21apt-get23:00:150
22698995935,17cyclictest14-21ksoftirqd/021:40:010
22698995930,21cyclictest14-21ksoftirqd/022:40:190
22698995921,31cyclictest14-21ksoftirqd/023:25:270
2269899586,18cyclictest22788-21apt-get19:10:140
22698995840,10cyclictest14-21ksoftirqd/021:10:280
22698995833,20cyclictest14-21ksoftirqd/019:25:110
22698995827,24cyclictest14-21ksoftirqd/020:20:060
22698995740,10cyclictest14-21ksoftirqd/021:30:000
22698995730,20cyclictest14-21ksoftirqd/019:55:130
22698995719,32cyclictest3935-21aten2.4-expect00:20:150
22698995716,17cyclictest7381-21aten2.4-expect00:30:160
22698995710,11cyclictest0-21swapper/000:05:370
2269899568,7cyclictest151rcu_preempt23:35:210
22698995638,10cyclictest14-21ksoftirqd/020:20:010
22698995629,9cyclictest14-21ksoftirqd/020:05:220
22698995620,31cyclictest254-21systemd-journal22:21:100
22698995620,29cyclictest5712-21aten2.4-expect00:25:200
22698995619,31cyclictest23937-21aten2.4-expect22:15:190
22698995614,18cyclictest17849-21aten2.4-expect20:25:160
22698995540,9cyclictest14-21ksoftirqd/019:50:000
22698995539,9cyclictest14-21ksoftirqd/020:50:130
22698995537,11cyclictest14-21ksoftirqd/019:45:010
22698995537,10cyclictest14-21ksoftirqd/000:15:000
22698995536,11cyclictest14-21ksoftirqd/023:55:010
22698995524,8cyclictest14-21ksoftirqd/022:10:220
22698995519,30cyclictest14-21ksoftirqd/020:10:160
2269899546,42cyclictest0-21swapper/019:50:330
2269899545,43cyclictest0-21swapper/022:35:400
22698995438,10cyclictest14-21ksoftirqd/022:00:220
22698995436,10cyclictest14-21ksoftirqd/021:00:340
22698995436,10cyclictest14-21ksoftirqd/020:45:000
22698995435,13cyclictest0-21swapper/000:15:390
2269899543,45cyclictest21092-21ntpq22:05:300
2269899543,44cyclictest7350-21cron23:00:010
2269899543,12cyclictest8716-21needreboot21:30:260
22698995428,21cyclictest14-21ksoftirqd/023:44:070
22698995427,20cyclictest14-21ksoftirqd/020:00:100
22698995425,21cyclictest448-21dbus-daemon19:40:010
22698995424,23cyclictest448-21dbus-daemon23:20:000
22698995418,29cyclictest0-21swapper/022:51:150
22698995415,17cyclictest151rcu_preempt00:00:120
22698995337,9cyclictest14-21ksoftirqd/023:45:210
2269899524,8cyclictest0-21swapper/021:50:190
22698995220,26cyclictest245322sleep019:15:040
22698995135,10cyclictest14-21ksoftirqd/022:30:170
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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