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2026-04-25 - 16:08
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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 Sat Apr 25, 2026 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
292319911079,16cyclictest14-21ksoftirqd/011:35:120
292319910274,18cyclictest14-21ksoftirqd/010:40:160
292319910071,19cyclictest14-21ksoftirqd/009:00:130
29231999970,18cyclictest14-21ksoftirqd/008:30:120
29231999969,16cyclictest14-21ksoftirqd/007:25:160
29231999871,15cyclictest14-21ksoftirqd/012:15:130
29231999766,17cyclictest0-21swapper/009:55:170
29231999766,17cyclictest0-21swapper/009:55:170
2869129715,38sleep00-21swapper/007:06:130
29231999667,18cyclictest14-21ksoftirqd/010:15:160
29231999364,18cyclictest14-21ksoftirqd/007:20:130
29231999363,18cyclictest14-21ksoftirqd/010:55:140
29231999061,20cyclictest14-21ksoftirqd/009:10:120
29231999058,20cyclictest14-21ksoftirqd/007:10:140
2884329033,46sleep10-21swapper/107:07:511
29231998961,17cyclictest14-21ksoftirqd/007:30:130
29231998859,20cyclictest14-21ksoftirqd/007:45:250
29231998655,19cyclictest14-21ksoftirqd/012:05:130
29231998613,60cyclictest0-21swapper/011:05:140
29231998454,18cyclictest14-21ksoftirqd/007:15:140
29231998349,20cyclictest14-21ksoftirqd/008:50:140
29231998149,20cyclictest14-21ksoftirqd/007:55:240
29231998146,21cyclictest0-21swapper/011:45:130
2923199805,40cyclictest2322-21sed10:20:340
29231998012,61cyclictest0-21swapper/008:45:250
29237997923,42cyclictest13950irq/14-ata_piix07:40:131
29231997952,19cyclictest14-21ksoftirqd/010:05:110
29231997914,48cyclictest0-21swapper/008:55:150
2923799788,17cyclictest0-21swapper/108:20:151
29231997850,17cyclictest14-21ksoftirqd/010:10:120
29231997814,47cyclictest0-21swapper/009:05:170
29231997641,25cyclictest4336-21seq12:00:110
29231997613,48cyclictest0-21swapper/008:05:130
29231997544,19cyclictest14-21ksoftirqd/008:15:120
29231997536,25cyclictest14-21ksoftirqd/011:25:120
29231997514,46cyclictest0-21swapper/011:10:140
29231997510,48cyclictest8149-31find07:40:120
2923199749,51cyclictest11930-21runrttasks10:50:120
29231997440,23cyclictest14-21ksoftirqd/010:45:120
29231997440,21cyclictest14-21ksoftirqd/008:25:150
29231997427,36cyclictest0-21swapper/011:40:130
29231997422,39cyclictest14-21ksoftirqd/012:25:150
29231997340,20cyclictest14-21ksoftirqd/011:20:160
29231997319,42cyclictest0-21swapper/012:20:120
29231997313,46cyclictest0-21swapper/010:35:140
29231997245,16cyclictest14-21ksoftirqd/009:35:140
29231997220,21cyclictest243-21systemd-journal12:13:290
29231997220,21cyclictest243-21systemd-journal12:13:290
29231997143,18cyclictest14-21ksoftirqd/008:00:230
29231997140,17cyclictest0-21swapper/009:15:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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