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2026-07-22 - 22:09
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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 20 highest latencies:
System rackeslot3.osadl.org (updated Wed Jul 22, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2703090996461,2cyclictest0-21swapper/111:53:061
2703090996361,1cyclictest0-21swapper/108:16:581
2703090996340,22cyclictest2165544-1kworker/1:1H10:10:001
2703090996337,24cyclictest2766889-21kworker/1:209:55:151
2703090996334,28cyclictest2812560-21kworker/1:110:30:141
270309099630,62cyclictest0-21swapper/108:00:321
2703090996158,2cyclictest0-21swapper/107:30:011
2703090996042,16cyclictest2165544-1kworker/1:1H07:20:011
2703090995956,2cyclictest0-21swapper/109:07:011
2703090995942,16cyclictest2165544-1kworker/1:1H12:39:551
2703090995942,15cyclictest2751762-21kworker/1:109:25:171
2703090995941,17cyclictest2893795-21kworker/1:012:00:151
2703090995941,16cyclictest2717701-21kworker/1:308:10:141
2703090995940,18cyclictest2915592-21kworker/1:312:25:131
2703090995939,17cyclictest2751762-21kworker/1:109:33:041
2703090995937,19cyclictest2165544-1kworker/1:1H11:25:001
2703090995843,14cyclictest2912794-21kworker/1:212:20:131
2703090995842,15cyclictest2726921-21kworker/1:008:25:011
2703090995841,16cyclictest2920662-21kworker/1:012:33:501
2703090995841,16cyclictest2903551-21kworker/1:212:10:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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