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2026-06-06 - 03:28
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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 100 highest latencies:
System rackdslot0.osadl.org (updated Sat Jun 06, 2026 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2110993015,1cyclictest0-21swapper/223:20:152
2105992927,2cyclictest0-21swapper/121:20:131
2105992625,0cyclictest0-21swapper/121:32:421
2110992524,0cyclictest0-21swapper/219:15:162
2110992515,10cyclictest0-21swapper/222:40:152
2110992320,2cyclictest12187-21cat22:15:162
211099230,22cyclictest0-21swapper/220:35:132
210099220,4cyclictest0-21swapper/022:35:010
210099220,4cyclictest0-21swapper/022:35:010
2110992117,3cyclictest0-21swapper/200:10:012
2100992117,3cyclictest3985-21H222:10:210
2110992018,1cyclictest0-21swapper/223:48:462
2110992017,2cyclictest1026-21find22:55:002
211099200,16cyclictest0-21swapper/200:05:122
2105992017,2cyclictest3987-21H222:10:211
2100992015,2cyclictest3983-21H222:10:210
211099192,2cyclictest26564-21cat19:50:152
211099192,16cyclictest3085-21postgres21:50:252
211099192,16cyclictest25183-21grep23:35:162
211099192,16cyclictest2491-21expr21:00:172
2110991917,1cyclictest4532-21cat22:00:202
2110991912,7cyclictest0-21swapper/222:07:272
211099191,17cyclictest455-21plymouthd22:10:202
211099191,16cyclictest4035-21H222:10:212
211099190,1cyclictest0-21swapper/200:20:112
211099190,17cyclictest26987-21https23:40:022
211099190,16cyclictest3991-21H222:10:212
211099190,16cyclictest3979-21H222:10:212
210599192,16cyclictest455-21plymouthd23:36:441
2105991917,1cyclictest0-21swapper/123:30:361
210599190,18cyclictest0-21swapper/122:26:371
210599190,16cyclictest3976-21H222:10:211
210099193,15cyclictest0-21swapper/022:00:570
210099192,1cyclictest0-21swapper/020:10:360
210099192,1cyclictest0-21swapper/019:10:190
210099192,16cyclictest3989-21H222:10:210
2100991917,1cyclictest3983-21H222:10:210
2100991916,2cyclictest9-21ksoftirqd/020:56:290
2100991914,1cyclictest0-21swapper/022:20:260
210099190,16cyclictest3989-21H222:10:210
210099190,16cyclictest3989-21H222:10:210
210099190,16cyclictest3976-21H222:10:210
211099182,1cyclictest0-21swapper/223:05:202
211099182,15cyclictest7508-21expr00:00:142
211099182,15cyclictest0-21swapper/220:08:372
2110991817,1cyclictest28-21ksoftirqd/221:08:412
2110991816,1cyclictest28-21ksoftirqd/223:12:072
2110991816,1cyclictest0-21swapper/221:40:162
2110991815,2cyclictest5034-21latency_hist19:15:012
2110991815,2cyclictest25743-21switchtime00:30:212
2110991815,2cyclictest21380-21cstates23:30:132
2110991815,2cyclictest14153-21nfsd423:15:172
2110991815,2cyclictest11513-21df19:25:142
2110991814,3cyclictest3987-21H222:10:212
2110991814,3cyclictest0-21swapper/223:00:112
2110991814,3cyclictest0-21swapper/220:17:182
211099181,2cyclictest18609-21timerandwakeup19:35:242
211099181,16cyclictest3985-21H222:10:212
211099181,16cyclictest20301-21cat23:25:212
211099180,2cyclictest3985-21H222:10:212
211099180,2cyclictest3976-21H222:10:212
211099180,17cyclictest3985-21H222:10:212
211099180,17cyclictest3983-21H222:10:212
211099180,17cyclictest19440-21latency_hist22:30:012
211099180,17cyclictest1526-21lxd21:46:492
211099180,17cyclictest0-21swapper/220:00:162
211099180,17cyclictest0-21swapper/219:55:142
210599182,15cyclictest6660-21missed_timers20:10:171
2105991816,1cyclictest0-21swapper/123:02:331
2105991814,3cyclictest3983-21H222:10:211
210599181,16cyclictest30507-21expr19:55:221
210599180,3cyclictest26527-21nfsd422:40:181
210599180,2cyclictest4035-21H222:10:211
210599180,2cyclictest4035-21H222:10:211
210599180,2cyclictest3989-21H222:10:211
210599180,2cyclictest3987-21H222:10:211
210599180,17cyclictest3987-21H222:10:211
210599180,16cyclictest3983-21H222:10:211
210099182,1cyclictest0-21swapper/023:05:200
2100991816,1cyclictest0-21swapper/019:55:140
2100991815,2cyclictest4035-21H222:10:210
2100991815,2cyclictest3987-21H222:10:210
2100991815,2cyclictest3985-21H222:10:210
2100991815,2cyclictest10711-21chrt22:11:570
2100991813,2cyclictest3987-21H222:10:210
2100991813,2cyclictest3987-21H222:10:210
210099180,3cyclictest18579-21anvil20:35:260
210099180,2cyclictest3991-21H222:10:210
210099180,2cyclictest3981-21H222:10:210
210099180,2cyclictest3976-21H222:10:210
210099180,17cyclictest21328-21/usr/sbin/munin00:25:100
210099180,15cyclictest3985-21H222:10:210
211099172,14cyclictest0-21swapper/223:50:132
2110991715,1cyclictest32243-21cstates21:55:132
2110991715,1cyclictest0-21swapper/222:45:132
2110991715,1cyclictest0-21swapper/220:20:202
2110991714,2cyclictest3979-21H222:10:212
2110991714,2cyclictest25207-21cstates20:45:142
2110991714,2cyclictest19837-21cat22:30:142
2110991714,2cyclictest19837-21cat22:30:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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