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2025-12-20 - 15:52
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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 rackeslot3.osadl.org (updated Sat Dec 20, 2025 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2495823996839,28cyclictest2517868-21kworker/1:108:25:161
2495829996543,19cyclictest2481584-21kworker/3:007:40:003
249582399630,2cyclictest0-21swapper/107:25:461
249582399620,2cyclictest0-21swapper/110:32:391
249582399600,59cyclictest0-21swapper/111:18:421
249582399600,59cyclictest0-21swapper/110:48:461
2495823995947,11cyclictest0-21swapper/109:40:011
2495823995941,16cyclictest2503021-21kworker/1:307:45:151
2495823995843,14cyclictest2587037-21kworker/1:112:00:141
2495823995842,15cyclictest2520966-21kworker/1:009:15:141
2495823995840,17cyclictest2520966-21kworker/1:009:10:151
2495823995839,17cyclictest2520966-21kworker/1:008:45:151
2495823995837,19cyclictest2186827-1kworker/1:2H10:10:001
2495823995834,22cyclictest2186827-1kworker/1:2H08:35:001
2495823995742,14cyclictest2582164-21kworker/1:011:50:181
2495823995739,17cyclictest2569622-21kworker/1:311:10:151
2495823995737,19cyclictest2549626-21kworker/1:310:05:001
2495823995641,14cyclictest2582164-21kworker/1:011:55:161
2495823995641,14cyclictest2572643-21kworker/1:211:20:141
2495823995641,14cyclictest2564683-21kworker/1:211:00:171
2495823995641,14cyclictest2564683-21kworker/1:210:50:161
2495823995641,14cyclictest2555155-21kworker/1:110:35:161
2495823995641,14cyclictest2520966-21kworker/1:008:55:321
2495823995641,14cyclictest2503021-21kworker/1:307:55:151
2495823995641,14cyclictest2503021-21kworker/1:307:40:151
2495823995641,14cyclictest2186827-1kworker/1:2H07:20:161
2495823995639,16cyclictest2514786-21kworker/1:008:15:141
2495823995639,15cyclictest2186827-1kworker/1:2H10:25:151
2495823995638,17cyclictest2517868-21kworker/1:108:20:151
2495823995633,22cyclictest2186827-1kworker/1:2H07:15:001
249582399563,2cyclictest2569622-21kworker/1:311:05:101
249582399562,3cyclictest0-21swapper/109:40:161
249582399562,3cyclictest0-21swapper/109:40:161
249582399560,55cyclictest0-21swapper/109:49:551
2495823995553,1cyclictest0-21swapper/111:35:531
2495823995551,2cyclictest2547491-21true09:55:001
2495823995540,14cyclictest2588595-21kworker/1:212:35:021
2495823995540,14cyclictest2588595-21kworker/1:212:10:161
2495823995540,14cyclictest2587037-21kworker/1:112:05:131
2495823995540,14cyclictest2551193-21kworker/1:210:15:161
2495823995540,14cyclictest2520966-21kworker/1:008:35:341
2495823995537,17cyclictest2588595-21kworker/1:212:15:201
2495823995537,16cyclictest2520966-21kworker/1:008:50:161
2495823995536,17cyclictest2186827-1kworker/1:2H07:55:001
2495829995443,8cyclictest3974478-1kworker/3:2H09:10:153
2495823995439,14cyclictest2588595-21kworker/1:212:25:001
2495823995439,14cyclictest2564683-21kworker/1:210:58:151
2495823995439,14cyclictest2520966-21kworker/1:009:05:011
2495823995439,14cyclictest2503021-21kworker/1:308:00:151
2495823995439,14cyclictest2503021-21kworker/1:308:00:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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