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2026-11-06 - 23:32
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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
Characteristics of the 20 highest latencies:
System rackcslot0.osadl.org (updated Fri Nov 06, 2026 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
791321710,5sleep131843099cyclictest22:17:085
791321710,5sleep131843099cyclictest22:17:085
2719221480,6sleep81842499cyclictest21:25:2614
605221370,0sleep20-21swapper/223:25:258
2745721330,5sleep21841499cyclictest00:05:018
1048021280,0sleep130-21swapper/1300:32:455
177062126103,18sleep140-21swapper/1419:08:226
178352125101,19sleep100-21swapper/1019:10:102
446621230,0sleep100-21swapper/1022:51:032
2532321200,0sleep10-21swapper/122:59:441
177782117105,8sleep60-21swapper/619:09:1812
678121160,0sleep100-21swapper/1022:17:052
678121160,0sleep100-21swapper/1022:17:052
2549921150,1sleep80-21swapper/822:42:2814
17837211592,18sleep120-21swapper/1219:10:124
1262821140,2sleep01050-21dbus-daemon22:31:220
1262821140,2sleep01050-21dbus-daemon22:31:220
324321130,5sleep141843199cyclictest21:59:466
17983210993,12sleep150-21swapper/1519:11:367
17857210792,10sleep130-21swapper/1319:10:295
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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