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2025-12-30 - 16:35
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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 rackcslot2.osadl.org (updated Tue Dec 30, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
630527362,7sleep10-21swapper/107:09:521
169322730,1sleep10-21swapper/111:06:591
100082730,0sleep10-21swapper/110:17:071
615226351,8sleep00-21swapper/007:08:180
126802620,1sleep00-21swapper/010:20:130
6488993939,0cyclictest0-21swapper/012:37:540
6488993011,18cyclictest0-21swapper/010:18:590
648999290,1cyclictest0-21swapper/110:36:211
648999288,19cyclictest0-21swapper/112:31:261
6488992825,1cyclictest0-21swapper/009:11:180
6489992723,3cyclictest636-21nscd10:24:351
6489992720,2cyclictest0-21swapper/111:44:331
6488992717,7cyclictest0-21swapper/011:48:310
648899270,4cyclictest0-21swapper/009:30:160
6489992624,2cyclictest0-21swapper/109:16:001
6489992624,1cyclictest4385-21cpu09:30:081
6489992610,1cyclictest0-21swapper/109:29:111
6488992626,0cyclictest0-21swapper/010:30:340
648899260,19cyclictest0-21swapper/011:20:170
6489992510,6cyclictest0-21swapper/109:11:571
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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