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2026-06-26 - 16:15
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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 rackcslot6.osadl.org (updated Fri Jun 26, 2026 12:46:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1403072993940,391cyclictest1526903-21systemd-userwor10:35:021
140307299391390,1cyclictest1503181-21kworker/1:011:00:021
140307299390389,1cyclictest1503181-21kworker/1:010:30:021
140307299390389,1cyclictest0-21swapper/112:01:021
140307299389388,1cyclictest1566353-21kworker/1:212:34:021
140307299389388,1cyclictest1566353-21kworker/1:212:34:011
140307299388387,1cyclictest1685341-21kworker/1:109:40:021
140307299388387,1cyclictest1685341-21kworker/1:108:20:021
140307299388387,1cyclictest1503181-21kworker/1:010:24:011
140307299388387,1cyclictest1503181-21kworker/1:009:55:021
140307299388387,1cyclictest0-21swapper/108:19:021
140307299387386,1cyclictest1566353-21kworker/1:212:37:021
140307299387385,1cyclictest1685341-21kworker/1:108:37:021
140307299386385,1cyclictest1685341-21kworker/1:108:40:021
140307299386385,1cyclictest1685341-21kworker/1:108:13:021
140307299386385,1cyclictest1685341-21kworker/1:108:13:021
140307299386385,1cyclictest1685341-21kworker/1:107:30:021
140307299386385,1cyclictest1566353-21kworker/1:212:28:021
140307299386385,1cyclictest1566353-21kworker/1:211:47:011
140307299385384,1cyclictest1503181-21kworker/1:010:27:021
140307299384383,1cyclictest1685341-21kworker/1:109:17:021
140307299384383,1cyclictest1566353-21kworker/1:212:11:021
140307299383382,1cyclictest1685341-21kworker/1:108:32:021
140307299383382,1cyclictest1503181-21kworker/1:010:46:021
140307299382381,1cyclictest1685341-21kworker/1:107:47:021
140307299382381,1cyclictest1685341-21kworker/1:107:41:021
140307299381380,1cyclictest1685341-21kworker/1:109:33:021
140307299381380,1cyclictest1685341-21kworker/1:108:06:021
140307299381380,1cyclictest1685341-21kworker/1:107:52:021
140307299380379,1cyclictest1685341-21kworker/1:109:53:021
140307299375374,1cyclictest0-21swapper/108:00:021
140307299373372,1cyclictest1685341-21kworker/1:107:19:021
140307299373372,1cyclictest1685341-21kworker/1:107:11:021
140307299372371,1cyclictest1685341-21kworker/1:109:48:021
140310699344342,1cyclictest0-21swapper/511:35:025
140306699342340,1cyclictest0-21swapper/012:20:020
140306699340339,1cyclictest0-21swapper/012:25:020
140306699340338,1cyclictest0-21swapper/010:40:010
140306699339338,1cyclictest0-21swapper/012:35:020
140306699338337,1cyclictest0-21swapper/011:15:010
140306699338336,1cyclictest0-21swapper/012:05:020
140306699337336,1cyclictest0-21swapper/010:55:010
140306699337336,1cyclictest0-21swapper/010:53:010
140306699337336,1cyclictest0-21swapper/008:35:020
140306699336335,1cyclictest0-21swapper/011:45:020
140306699336335,1cyclictest0-21swapper/011:36:020
140306699336335,1cyclictest0-21swapper/011:20:010
140306699336335,1cyclictest0-21swapper/010:00:020
140306699335334,1cyclictest0-21swapper/009:05:010
140310699334330,3cyclictest1527246-21kworker/5:010:35:025
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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