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2026-06-16 - 10:49
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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 Tue Jun 16, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28126992626,0cyclictest0-21swapper/222:15:182
2812699230,5cyclictest0-21swapper/223:25:202
28124992322,1cyclictest13358-21mii-tool00:25:140
2812599220,22cyclictest0-21swapper/123:35:101
2812499220,21cyclictest0-21swapper/022:47:150
28126992112,5cyclictest0-21swapper/220:05:012
2812599214,16cyclictest21-21ksoftirqd/122:15:191
2812599210,20cyclictest843-21systemd-network23:49:501
2812499210,3cyclictest0-21swapper/020:21:300
2812599200,18cyclictest18664-21latency_hist21:45:011
2812599200,18cyclictest18664-21latency_hist21:45:011
28124992017,2cyclictest30740-21latency_hist19:15:010
2812499200,17cyclictest0-21swapper/021:48:360
2812499200,16cyclictest0-21swapper/021:42:430
2812499200,16cyclictest0-21swapper/021:42:430
2812699194,1cyclictest0-21swapper/222:43:322
2812699192,2cyclictest3979-21H222:10:212
2812699192,1cyclictest0-21swapper/219:19:482
2812699191,16cyclictest0-21swapper/223:55:002
2812699190,16cyclictest3987-21H222:10:212
2812699190,15cyclictest0-21swapper/222:45:242
28125991917,1cyclictest21-21ksoftirqd/120:35:221
2812599190,16cyclictest3981-21H222:10:211
2812599190,16cyclictest3976-21H222:10:211
2812499193,15cyclictest4849-21cstates21:20:130
28124991917,1cyclictest3989-21H222:10:210
28124991917,1cyclictest3989-21H222:10:210
28124991917,1cyclictest32392-21awk21:10:180
28124991917,1cyclictest0-21swapper/021:18:000
28124991916,2cyclictest5275-21ls22:15:200
28124991916,2cyclictest1981-21ntpq00:05:180
28124991916,2cyclictest10563-21idleruntime00:20:150
28124991915,2cyclictest0-21swapper/022:25:140
28124991914,3cyclictest0-21swapper/021:35:140
2812499190,2cyclictest3979-21H222:10:210
2812499190,18cyclictest0-21swapper/022:55:230
2812499190,16cyclictest3985-21H222:10:210
2812499190,16cyclictest3981-21H222:10:210
2812699182,15cyclictest0-21swapper/220:05:142
28126991816,1cyclictest0-21swapper/222:57:342
28126991816,1cyclictest0-21swapper/220:35:192
28126991815,2cyclictest3985-21H222:10:212
28126991815,2cyclictest3981-21H222:10:212
28126991814,3cyclictest3987-21H222:10:212
28126991814,3cyclictest1079-21cups-browsed21:25:212
2812699181,2cyclictest8347-21chrt22:23:422
2812699181,2cyclictest4099-21H222:10:212
2812699181,1cyclictest32517-21nfsd423:05:192
2812699180,2cyclictest3985-21H222:10:212
2812699180,2cyclictest3981-21H222:10:212
2812699180,2cyclictest3979-21H222:10:212
2812699180,2cyclictest3979-21H222:10:212
2812699180,17cyclictest3979-21H222:10:212
2812699180,16cyclictest3983-21H222:10:212
2812599182,15cyclictest21-21ksoftirqd/122:00:141
2812599182,15cyclictest21-21ksoftirqd/121:30:151
28125991817,0cyclictest0-21swapper/121:08:321
28125991816,1cyclictest21-21ksoftirqd/120:10:021
28125991813,2cyclictest3981-21H222:10:211
28125991813,2cyclictest3979-21H222:10:211
2812599181,1cyclictest111rcu_preempt19:52:481
2812599181,16cyclictest8558-21nfsd421:25:181
2812599181,16cyclictest17368-21nfsd419:45:171
2812599180,1cyclictest0-21swapper/120:14:341
2812599180,0cyclictest0-21swapper/122:20:171
2812499182,2cyclictest25174-21mii-tool21:55:150
2812499182,15cyclictest0-21swapper/023:35:150
28124991816,1cyclictest9-21ksoftirqd/023:56:460
28124991816,1cyclictest0-21swapper/022:15:010
28124991816,1cyclictest0-21swapper/021:30:010
28124991815,2cyclictest779-21chrt19:16:390
28124991815,2cyclictest20029-21cat23:40:140
28124991814,3cyclictest4035-21H222:10:210
28124991814,3cyclictest25332-21anvil22:54:190
28124991814,3cyclictest11871-21nvmesmart_nvme021:30:190
28124991814,3cyclictest0-21swapper/019:58:470
28124991814,3cyclictest0-21swapper/019:50:060
28124991814,3cyclictest0-21swapper/019:40:140
2812499181,2cyclictest32228-21kernelversion23:05:180
28124991812,1cyclictest0-21swapper/022:40:150
2812499181,16cyclictest5358-21hddtemp_smartct19:25:160
2812499181,16cyclictest25775-21expr21:00:130
2812499181,16cyclictest0-21swapper/023:15:010
2812499180,2cyclictest3989-21H222:10:210
2812499180,2cyclictest3976-21H222:10:210
2812499180,17cyclictest0-21swapper/019:22:510
28126991715,1cyclictest86962chrt00:16:432
28126991715,1cyclictest3989-21H222:10:212
28126991715,1cyclictest16087-21nfsd422:35:182
28126991715,1cyclictest0-21swapper/221:30:132
28126991714,2cyclictest4099-21H222:10:212
28126991714,2cyclictest3669-21pzem_power23:10:202
28126991714,2cyclictest10563-21sort22:25:212
2812699171,15cyclictest0-21swapper/219:22:212
2812699170,2cyclictest3987-21H222:10:212
2812699170,2cyclictest3981-21H222:10:212
2812699170,2cyclictest29165-21/usr/sbin/munin23:00:132
2812699170,2cyclictest29165-21/usr/sbin/munin23:00:132
2812699170,2cyclictest27711-21grep22:00:132
2812699170,2cyclictest26800-21cut22:00:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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