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2026-06-01 - 03:10
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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 Mon Jun 01, 2026 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
151809910559,24cyclictest14-21ksoftirqd/020:10:150
151809910149,28cyclictest14-21ksoftirqd/021:35:130
15180999852,24cyclictest14-21ksoftirqd/020:55:130
1518099966,72cyclictest0-21swapper/022:50:230
15182999565,19cyclictest26-21ksoftirqd/120:20:141
15182999565,17cyclictest26-21ksoftirqd/120:45:241
15182999564,19cyclictest26-21ksoftirqd/123:00:151
15182999265,16cyclictest26-21ksoftirqd/121:15:151
15182999263,20cyclictest26-21ksoftirqd/123:20:141
15182999261,21cyclictest26-21ksoftirqd/119:35:111
1481529218,26sleep00-21swapper/019:08:060
15182999162,17cyclictest26-21ksoftirqd/100:35:131
15182999063,17cyclictest26-21ksoftirqd/122:05:131
15182998959,19cyclictest26-21ksoftirqd/119:10:121
15182998957,22cyclictest26-21ksoftirqd/120:50:131
15182998856,23cyclictest164582sleep123:45:111
15182998657,19cyclictest26-21ksoftirqd/122:20:151
15182998555,17cyclictest26-21ksoftirqd/121:20:131
15182998553,18cyclictest26-21ksoftirqd/122:30:151
15180998545,22cyclictest14-21ksoftirqd/020:00:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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