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2026-06-13 - 18:17
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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 rackdslot4.osadl.org (updated Sat Jun 13, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2540022120,5sleep325366-21execl07:09:373
2539822090,8sleep125366-21execl07:09:351
2543721860,5sleep225427-21execl07:09:522
2487721710,6sleep12570799cyclictest07:30:551
1108321710,7sleep12570799cyclictest08:30:261
2765021600,5sleep226968-21execl07:10:352
660421530,5sleep02570699cyclictest07:23:100
2475721510,6sleep02570699cyclictest12:15:140
251342146113,21sleep00-21swapper/007:07:460
305972860,4sleep330569-21sh07:29:073
309642740,4sleep330915-21multi.sh07:31:483
160672740,3sleep30-21swapper/307:35:313
157692710,3sleep015781-21wc07:29:570
60092700,6sleep22570899cyclictest07:28:142
138491660,0ptp4l401ktimersoftd/309:16:263
279082610,3sleep027135-21apt-get07:30:130
268602610,7sleep32570999cyclictest10:10:123
103592610,3sleep00-21swapper/009:35:200
275212600,7sleep32570999cyclictest07:23:213
186632590,3sleep118657-21od07:28:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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