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2026-09-28 - 02:29
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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 rack3slot6.osadl.org (updated Mon Sep 28, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19478211334,64sleep10-21swapper/119:05:111
212319910689,11cyclictest14-21ksoftirqd/000:20:130
212319910572,18cyclictest0-21swapper/023:40:140
21231999972,14cyclictest14-21ksoftirqd/019:55:120
21231999814,26cyclictest0-21swapper/000:15:130
21231999766,18cyclictest0-21swapper/019:45:130
21231999665,19cyclictest14-21ksoftirqd/022:40:140
21231999569,15cyclictest14-21ksoftirqd/022:35:150
21231999566,18cyclictest14-21ksoftirqd/021:35:140
21231999364,17cyclictest14-21ksoftirqd/019:50:140
21231999362,20cyclictest14-21ksoftirqd/022:30:150
21231999265,17cyclictest14-21ksoftirqd/020:25:260
21231999162,18cyclictest14-21ksoftirqd/021:00:240
21231999064,17cyclictest14-21ksoftirqd/020:45:110
21231998962,15cyclictest14-21ksoftirqd/022:50:130
21231998960,19cyclictest14-21ksoftirqd/020:10:130
21231998960,19cyclictest14-21ksoftirqd/020:10:130
21231998959,20cyclictest14-21ksoftirqd/020:15:140
21231998959,20cyclictest14-21ksoftirqd/019:30:150
21231998959,18cyclictest14-21ksoftirqd/019:10:130
288902880,5chrt0-21swapper/119:30:181
21231998855,22cyclictest14-21ksoftirqd/020:20:140
21231998559,17cyclictest14-21ksoftirqd/000:30:110
21231998556,19cyclictest14-21ksoftirqd/022:05:140
21231998353,20cyclictest14-21ksoftirqd/021:55:140
21231998351,19cyclictest14-21ksoftirqd/022:10:130
21231998350,22cyclictest14-21ksoftirqd/020:05:150
21231998150,21cyclictest14-21ksoftirqd/023:20:120
21231998150,21cyclictest14-21ksoftirqd/019:40:140
21231998149,19cyclictest14-21ksoftirqd/022:20:120
21231998112,24cyclictest0-21swapper/020:35:130
21231998052,20cyclictest14-21ksoftirqd/022:45:110
21231997948,21cyclictest14-21ksoftirqd/023:55:120
21231997947,21cyclictest14-21ksoftirqd/019:35:120
2087927933,38sleep00-21swapper/019:08:160
21231997850,19cyclictest14-21ksoftirqd/023:45:120
21231997513,54cyclictest0-21swapper/022:25:140
21231997440,21cyclictest14-21ksoftirqd/023:10:150
21231997438,23cyclictest14-21ksoftirqd/023:50:230
21231997415,52cyclictest0-21swapper/020:30:120
21231997345,18cyclictest14-21ksoftirqd/023:05:220
21231997343,18cyclictest0-21swapper/000:10:100
21231997312,46cyclictest0-21swapper/021:50:130
21231997241,17cyclictest0-21swapper/000:25:120
21231997240,20cyclictest14-21ksoftirqd/019:25:140
21231997237,22cyclictest14-21ksoftirqd/023:30:120
16122720,17sleep1251rcuc/122:45:241
21231997143,16cyclictest0-21swapper/023:35:130
21231997120,40cyclictest0-21swapper/021:45:120
21231997110,25cyclictest0-21swapper/020:50:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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