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2026-06-02 - 17:01
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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 rack3slot6.osadl.org (updated Tue Jun 02, 2026 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
82299914761,35cyclictest0-21swapper/009:05:140
82299913647,72cyclictest0-21swapper/008:00:120
909621110,5chrt9099-21grep07:10:321
82349910884,13cyclictest26-21ksoftirqd/107:40:261
82299910746,45cyclictest14-21ksoftirqd/007:45:110
82349910271,20cyclictest26-21ksoftirqd/108:40:131
82349910173,19cyclictest26-21ksoftirqd/109:05:111
82299910156,25cyclictest503-21snmpd10:30:120
8229991008,22cyclictest0-21swapper/009:20:120
8234999968,20cyclictest26-21ksoftirqd/109:00:151
8234999865,23cyclictest26-21ksoftirqd/110:20:151
8234999770,16cyclictest26-21ksoftirqd/109:15:151
8234999768,19cyclictest26-21ksoftirqd/108:50:141
8234999563,21cyclictest26-21ksoftirqd/109:30:141
8234999462,21cyclictest26-21ksoftirqd/111:15:151
8234999461,21cyclictest26-21ksoftirqd/111:40:151
8234999461,21cyclictest26-21ksoftirqd/111:40:151
8229999442,32cyclictest0-21swapper/009:15:130
782529422,26sleep00-21swapper/007:07:400
8234999359,23cyclictest26-21ksoftirqd/110:10:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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