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2026-09-23 - 05:06
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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 Sep 23, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16079993322,10cyclictest32131-21cat23:25:151
1608099240,0cyclictest0-21swapper/200:25:162
1608099234,16cyclictest17019-21grep19:10:132
1607999230,3cyclictest0-21swapper/121:44:191
1607899237,15cyclictest0-21swapper/022:40:200
16078992210,11cyclictest0-21swapper/019:50:180
1607899220,18cyclictest0-21swapper/021:38:570
1608099214,13cyclictest0-21swapper/200:10:202
16080992118,2cyclictest3053-21systemd-logind19:56:512
16080992118,2cyclictest23695-21munin-plugin-st22:15:012
16080992117,3cyclictest0-21swapper/222:25:222
16080992117,3cyclictest0-21swapper/222:22:402
1608099210,20cyclictest843-21systemd-network20:01:212
16079992117,3cyclictest3979-21H222:10:211
1608099202,2cyclictest3985-21H222:10:212
16080992018,1cyclictest9576-21grep20:50:182
16080992018,1cyclictest0-21swapper/222:57:402
16080992016,3cyclictest0-21swapper/223:39:052
16080992016,3cyclictest0-21swapper/221:18:342
1607999201,17cyclictest2038-21nfsd419:40:181
1607999200,18cyclictest399-20systemd-journal20:45:021
1608099192,16cyclictest2750-21grep23:30:132
1608099192,16cyclictest2750-21grep23:30:132
16080991917,1cyclictest28-21ksoftirqd/222:07:412
16080991915,3cyclictest3990-21H222:10:212
16080991915,3cyclictest0-21swapper/223:45:002
1608099190,2cyclictest3991-21H222:10:212
1608099190,2cyclictest3983-21H222:10:212
1608099190,18cyclictest0-21swapper/219:24:532
1608099190,17cyclictest4710-21grep21:40:132
1608099190,17cyclictest3979-21H222:10:212
1608099190,17cyclictest18667-21nfsd423:00:192
1608099190,17cyclictest0-21swapper/221:06:162
1607999195,11cyclictest111rcu_preempt22:01:561
1607999192,16cyclictest11277-21timerandwakeup21:50:211
16079991917,1cyclictest3979-21H222:10:211
16079991917,1cyclictest29932-21sed00:15:221
16079991916,2cyclictest6144-21load23:35:171
1607999191,2cyclictest3976-21H222:10:211
1607999190,18cyclictest12951-21grep21:55:151
1607999190,16cyclictest4099-21H222:10:211
1607999190,16cyclictest4099-21H222:10:211
1607999190,16cyclictest3991-21H222:10:211
1607999190,16cyclictest3987-21H222:10:211
1607999190,16cyclictest3981-21H222:10:211
1607899192,2cyclictest32232-21nfsd400:20:180
1607899192,16cyclictest0-21swapper/000:39:170
16078991917,1cyclictest0-21swapper/023:47:120
16078991917,1cyclictest0-21swapper/000:34:290
16078991916,2cyclictest7821-21cut23:40:000
16078991914,2cyclictest3976-21H222:10:210
1607899190,2cyclictest3979-21H222:10:210
1607899190,16cyclictest4099-21H222:10:210
1607899190,16cyclictest3981-21H222:10:210
1607899190,16cyclictest3979-21H222:10:210
1608099182,15cyclictest24544-21basename22:15:142
1608099182,15cyclictest0-21swapper/220:40:222
16080991816,1cyclictest0-21swapper/222:34:452
16080991815,2cyclictest31097-21chrt20:33:362
16080991814,3cyclictest6446-21basename20:45:182
16080991814,3cyclictest0-21swapper/223:20:132
16080991814,1cyclictest234042sleep223:10:112
1608099181,16cyclictest3979-21H222:10:212
1608099181,16cyclictest12363-21grep21:55:122
1608099180,2cyclictest4099-21H222:10:212
1608099180,1cyclictest0-21swapper/223:57:312
1608099180,17cyclictest5221-21cstates00:30:122
1608099180,17cyclictest3991-21H222:10:212
1608099180,17cyclictest3981-21H222:10:212
1608099180,17cyclictest31808-21if_eno100:20:152
1608099180,17cyclictest29183-21uname00:15:172
1608099180,17cyclictest27894-21expr19:30:132
1608099180,17cyclictest1997-21latency_hist23:30:002
1608099180,17cyclictest1044-21expr19:40:152
1608099180,17cyclictest0-21swapper/222:02:142
1608099180,16cyclictest3976-21H222:10:212
1608099180,16cyclictest15330-21grep20:05:162
1607999182,2cyclictest3979-21H222:10:211
1607999182,15cyclictest21-21ksoftirqd/121:13:261
16079991816,1cyclictest21-21ksoftirqd/121:30:201
16079991814,3cyclictest3991-21H222:10:211
16079991814,3cyclictest3987-21H222:10:211
16079991814,3cyclictest3981-21H222:10:211
1607999180,3cyclictest3991-21H222:10:211
1607999180,2cyclictest4099-21H222:10:211
1607999180,2cyclictest3979-21H222:10:211
1607999180,17cyclictest4035-21H222:10:211
1607999180,17cyclictest3989-21H222:10:211
1607999180,17cyclictest3987-21H222:10:211
1607999180,16cyclictest4035-21H222:10:211
1607999180,16cyclictest4035-21H222:10:211
1607999180,16cyclictest4035-21H222:10:211
1607999180,16cyclictest4035-21H222:10:211
1607999180,16cyclictest3991-21H222:10:211
1607999180,16cyclictest3987-21H222:10:211
1607999180,16cyclictest3985-21H222:10:211
1607999180,16cyclictest3981-21H222:10:211
1607999180,16cyclictest3979-21H222:10:211
1607999180,15cyclictest4099-21H222:10:211
16078991816,1cyclictest9-21ksoftirqd/019:37:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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