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2026-04-09 - 17:37
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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 20 highest latencies:
System rackeslot8.osadl.org (updated Thu Apr 09, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
848838993027,1cyclictest0-21swapper/309:20:143
848838992825,1cyclictest0-21swapper/309:55:003
848838992522,1cyclictest0-21swapper/309:55:153
848838992522,1cyclictest0-21swapper/309:55:153
848838992522,1cyclictest0-21swapper/309:25:153
848838992522,1cyclictest0-21swapper/307:15:013
848838992421,1cyclictest0-21swapper/311:10:193
848838992421,1cyclictest0-21swapper/310:50:173
848838992311,8cyclictest13302372sleep312:38:223
848838992219,1cyclictest0-21swapper/307:50:003
84883899221,16cyclictest966582-21taskset08:39:473
848838992119,1cyclictest0-21swapper/312:05:013
848838992118,1cyclictest0-21swapper/312:20:003
84883899211,15cyclictest1129264-21taskset10:30:013
84883899211,14cyclictest1237776-21sleep11:44:553
12509672210,1sleep00-21swapper/011:45:190
84883899209,7cyclictest9214092sleep308:02:523
84883899209,7cyclictest8955812sleep307:40:593
84883899208,8cyclictest12303172sleep311:35:123
848838992017,1cyclictest0-21swapper/312:25:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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