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2025-07-03 - 14:23
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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
Characteristics of the 50 highest latencies:
System rack6slot0.osadl.org (updated Thu Jul 03, 2025 13:02:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
656699291286,3cyclictest0-21swapper/010:36:450
656699291286,3cyclictest0-21swapper/010:36:450
6569992261,90cyclictest29614-21NetworkChangeNo10:10:1823
6569992261,90cyclictest29614-21NetworkChangeNo10:10:1823
6569992261,90cyclictest29614-21NetworkChangeNo10:10:1823
658999225200,12cyclictest0-21swapper/1708:45:189
658999225200,12cyclictest0-21swapper/1708:45:189
657899219197,5cyclictest93-21ksoftirqd/909:50:2039
657899219197,5cyclictest93-21ksoftirqd/909:50:2039
657899219197,5cyclictest93-21ksoftirqd/909:50:2039
65999920766,131cyclictest7517-21TaskSchedulerSi10:40:1918
65999920766,131cyclictest7517-21TaskSchedulerSi10:40:1918
65999920766,131cyclictest7517-21TaskSchedulerSi10:40:1918
6596992011,182cyclictest0-21swapper/2311:25:2116
6596992011,182cyclictest0-21swapper/2311:25:2016
6596992011,182cyclictest0-21swapper/2311:25:2016
656799201194,3cyclictest0-21swapper/112:00:151
656799201194,3cyclictest0-21swapper/112:00:151
656799201194,3cyclictest0-21swapper/112:00:151
659399200167,29cyclictest0-21swapper/2010:53:3913
659399200167,29cyclictest0-21swapper/2010:53:3813
659399200167,29cyclictest0-21swapper/2010:53:3813
659199198172,12cyclictest21723-21inotify_reader08:30:1810
659199198172,12cyclictest21723-21inotify_reader08:30:1810
65809919812,12cyclictest26944-21TaskSchedulerSi09:40:203
65809919812,12cyclictest26944-21TaskSchedulerSi09:40:203
65679919810,102cyclictest0-21swapper/109:55:201
65679919810,102cyclictest0-21swapper/109:55:201
65679919810,102cyclictest0-21swapper/109:55:201
65989919721,172cyclictest3079-21CPU17
65989919721,172cyclictest3079-21CPU17
65989919721,172cyclictest3079-21CPU17
6567991979,25cyclictest0-21swapper/107:45:211
6567991979,25cyclictest0-21swapper/107:45:211
66119919426,34cyclictest21703-21TaskSchedulerSi09:55:2128
66119919426,34cyclictest21703-21TaskSchedulerSi09:55:2128
66119919426,34cyclictest21703-21TaskSchedulerSi09:55:2128
657699194187,6cyclictest0-21swapper/707:38:1737
657699194187,6cyclictest0-21swapper/707:38:1737
660099193185,6cyclictest0-21swapper/2609:52:3119
660099193185,6cyclictest0-21swapper/2609:52:3119
660099193185,6cyclictest0-21swapper/2609:52:3119
659699193110,69cyclictest25043-21NetworkChangeNo12:30:2316
659699193110,69cyclictest25043-21NetworkChangeNo12:30:2316
65749919256,105cyclictest0-21swapper/610:45:2136
65749919256,105cyclictest0-21swapper/610:45:2136
65749919256,105cyclictest0-21swapper/610:45:2136
657799191110,76cyclictest15981-21CPU38
657799191110,76cyclictest15981-21CPU38
657799191110,76cyclictest15981-21CPU38
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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