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2025-12-27 - 09:37
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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 Sat Dec 27, 2025 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
751821580,6sleep17512-21ntp_states19:05:251
85289911838,66cyclictest0-21swapper/019:35:140
85289911679,26cyclictest14-21ksoftirqd/000:20:230
85289911369,33cyclictest14-21ksoftirqd/000:30:250
85289911335,67cyclictest0-21swapper/023:15:250
85289911112,86cyclictest0-21swapper/023:50:130
85289911011,88cyclictest0-21swapper/022:45:150
85289911011,88cyclictest0-21swapper/022:45:140
85289910811,82cyclictest0-21swapper/022:15:120
8381210719,40sleep00-21swapper/019:09:510
8528991066,85cyclictest18921-21diskmemload21:10:290
85289910666,29cyclictest0-21swapper/020:45:130
85289910666,29cyclictest0-21swapper/020:45:120
85289910663,32cyclictest14-21ksoftirqd/021:40:120
85289910611,82cyclictest0-21swapper/022:25:150
8528991047,56cyclictest500-21snmpd22:10:130
85289910411,25cyclictest0-21swapper/020:15:160
85289910352,38cyclictest14-21ksoftirqd/019:45:160
853099989,34cyclictest18921-21diskmemload21:10:261
8528999745,31cyclictest14-21ksoftirqd/020:05:120
8528999713,65cyclictest0-21swapper/019:15:130
8530999613,75cyclictest0-21swapper/122:05:141
8530999613,75cyclictest0-21swapper/122:05:141
852899966,68cyclictest20002-21sed00:15:020
8528999540,39cyclictest14-21ksoftirqd/023:05:110
8528999511,63cyclictest0-21swapper/021:45:130
8528999412,63cyclictest0-21swapper/021:05:130
8528999345,30cyclictest14-21ksoftirqd/021:50:110
8528999312,61cyclictest0-21swapper/023:25:150
8530999256,25cyclictest26-21ksoftirqd/123:55:141
8528999239,33cyclictest14-21ksoftirqd/020:50:130
8528999211,60cyclictest0-21swapper/021:20:130
8528999210,59cyclictest0-21swapper/023:30:140
8528999133,32cyclictest14-21ksoftirqd/022:05:150
8528999133,32cyclictest14-21ksoftirqd/022:05:140
8528999129,45cyclictest14-21ksoftirqd/020:00:140
8528999110,59cyclictest0-21swapper/022:35:130
8528999110,59cyclictest0-21swapper/019:20:120
8530999013,23cyclictest0-21swapper/121:15:121
852899909,57cyclictest0-21swapper/019:50:140
8528999037,35cyclictest14-21ksoftirqd/020:55:150
8528999015,52cyclictest0-21swapper/022:20:170
852899897,59cyclictest500-21snmpd20:25:150
8528998911,55cyclictest0-21swapper/022:00:140
8528998910,59cyclictest0-21swapper/019:55:130
853099886,40cyclictest0-21swapper/100:00:041
8528998837,32cyclictest14-21ksoftirqd/021:35:150
8528998811,57cyclictest0-21swapper/023:55:170
8528998711,57cyclictest0-21swapper/000:15:150
43042860,7sleep14288-21munin-run22:00:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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