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2026-07-08 - 04:18
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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 Wed Jul 08, 2026 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27032992314,0cyclictest0-21swapper/219:25:162
27032992214,5cyclictest0-21swapper/219:17:542
2702399220,18cyclictest0-21swapper/023:57:100
2702399204,15cyclictest0-21swapper/020:56:500
27023992017,2cyclictest3983-21H222:10:210
27023992017,2cyclictest3053-21systemd-logind20:38:530
2702399201,4cyclictest31815-21cpuspeed_turbos20:15:150
2703299193,1cyclictest28-21ksoftirqd/222:53:472
27032991917,1cyclictest28-21ksoftirqd/221:57:512
27032991916,2cyclictest19171-21cpuspeed_turbos20:50:132
27032991914,3cyclictest17457-21grep20:45:192
2703299190,16cyclictest3987-21H222:10:212
2703299190,16cyclictest3985-21H222:10:212
2703299190,16cyclictest3979-21H222:10:212
2703299190,15cyclictest0-21swapper/220:25:122
2702899192,2cyclictest993-21dbus-daemon20:05:211
2702899192,2cyclictest4099-21H222:10:211
27028991914,3cyclictest0-21swapper/123:18:121
27028991914,2cyclictest3976-21H222:10:211
2702899191,2cyclictest3989-21H222:10:211
2702899190,2cyclictest3981-21H222:10:211
2702899190,2cyclictest3981-21H222:10:211
2702899190,17cyclictest4099-21H222:10:211
2702899190,16cyclictest0-21swapper/121:20:161
2702399193,15cyclictest29565-21vmstat23:00:220
27023991911,4cyclictest0-21swapper/000:34:590
2703299182,15cyclictest3985-21H222:10:212
27032991816,1cyclictest28-21ksoftirqd/200:24:072
27032991816,1cyclictest0-21swapper/219:54:532
27032991815,2cyclictest4615-21fschecks_count21:20:162
27032991815,2cyclictest3985-21H222:10:212
27032991815,2cyclictest3981-21H222:10:212
27032991815,2cyclictest2766-21expr00:10:132
27032991814,3cyclictest4035-21H222:10:212
27032991814,3cyclictest3989-21H222:10:212
27032991814,3cyclictest3989-21H222:10:212
2703299181,2cyclictest17157-21chrt19:47:522
2703299180,2cyclictest3983-21H222:10:212
2703299180,17cyclictest4099-21H222:10:212
2703299180,17cyclictest2007-21systemd-journal20:23:392
2703299180,15cyclictest3985-21H222:10:212
2703299180,15cyclictest3976-21H222:10:212
2702899182,2cyclictest3981-21H222:10:211
2702899182,1cyclictest0-21swapper/100:05:131
2702899182,15cyclictest21-21ksoftirqd/119:59:011
2702899182,15cyclictest21-21ksoftirqd/100:10:031
2702899182,15cyclictest0-21swapper/123:24:201
27028991816,1cyclictest21-21ksoftirqd/122:30:031
27028991816,1cyclictest21-21ksoftirqd/120:50:131
27028991815,2cyclictest5090-21needreboot19:25:181
27028991814,3cyclictest3989-21H222:10:211
27028991814,2cyclictest3983-21H222:10:211
27028991813,3cyclictest4099-21H222:10:211
27028991813,2cyclictest3991-21H222:10:211
2702899181,16cyclictest12566-21sh21:35:011
2702899180,3cyclictest3983-21H222:10:211
2702899180,2cyclictest3983-21H222:10:211
2702899180,2cyclictest11143-21grep23:25:181
2702899180,17cyclictest8943-21fschecks_count22:25:141
2702899180,16cyclictest4099-21H222:10:211
2702899180,16cyclictest3991-21H222:10:211
2702899180,16cyclictest3979-21H222:10:211
2702899180,16cyclictest3976-21H222:10:211
2702899180,16cyclictest3976-21H222:10:211
2702399182,15cyclictest0-21swapper/021:18:440
27023991817,1cyclictest0-21swapper/023:15:460
27023991816,1cyclictest9-21ksoftirqd/000:10:140
27023991816,1cyclictest3979-21H222:10:210
27023991816,1cyclictest32724-21cut22:10:140
27023991816,1cyclictest22107-21switchtime19:55:220
27023991814,3cyclictest3991-21H222:10:210
27023991814,3cyclictest3987-21H222:10:210
27023991814,3cyclictest3987-21H222:10:210
27023991814,3cyclictest3979-21H222:10:210
2702399181,2cyclictest3987-21H222:10:210
2702399181,16cyclictest0-21swapper/021:20:150
2702399180,2cyclictest3991-21H222:10:210
2702399180,2cyclictest3981-21H222:10:210
2702399180,2cyclictest3981-21H222:10:210
2702399180,2cyclictest3981-21H222:10:210
2702399180,18cyclictest0-21swapper/022:51:350
2702399180,17cyclictest3991-21H222:10:210
2702399180,17cyclictest3987-21H222:10:210
2702399180,17cyclictest3981-21H222:10:210
2702399180,16cyclictest3981-21H222:10:210
2702399180,15cyclictest3987-21H222:10:210
2702399180,15cyclictest3979-21H222:10:210
27032991715,1cyclictest28-21ksoftirqd/220:11:452
27032991714,2cyclictest21401-21expr21:50:142
27032991714,2cyclictest17421-21timerwakeupswit21:40:222
27032991713,3cyclictest3987-21H222:10:212
27032991713,3cyclictest3983-21H222:10:212
2703299171,2cyclictest1441-21sendmail-mta00:34:172
2703299170,2cyclictest6871-21cpuspeed_turbos21:25:142
2703299170,2cyclictest6818-21nfsd422:20:182
2703299170,2cyclictest4099-21H222:10:212
2703299170,2cyclictest3983-21H222:10:212
2703299170,2cyclictest3976-21H222:10:212
2703299170,2cyclictest2242-21nfsd421:15:202
2703299170,2cyclictest22008-21cat23:45:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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