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2026-08-23 - 07:25
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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 Sun Aug 23, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29083992725,1cyclictest0-21swapper/100:40:001
29082992419,4cyclictest4100-21H222:10:210
2908499230,8cyclictest0-21swapper/221:35:192
2908399230,6cyclictest0-21swapper/119:58:561
29082992119,1cyclictest9-21ksoftirqd/023:35:520
2908499202,3cyclictest0-21swapper/221:43:562
29084992020,0cyclictest0-21swapper/221:30:172
2908499200,19cyclictest14501-21snapd19:35:282
2908399204,15cyclictest0-21swapper/100:25:131
2908399203,16cyclictest0-21swapper/122:15:271
2908399203,11cyclictest5261-21http21:20:001
2908399202,17cyclictest0-21swapper/121:41:161
29083992017,2cyclictest21-21ksoftirqd/123:05:181
2908399200,17cyclictest624-21basename00:05:001
2908299203,2cyclictest14329-21expr21:35:140
2908299200,17cyclictest4035-21H222:10:210
2908499193,15cyclictest8702-21apt23:20:132
2908499193,15cyclictest0-21swapper/220:22:442
2908499192,2cyclictest32168-21cpu19:15:142
29084991915,2cyclictest14000-21smartctl22:30:192
2908499191,3cyclictest13152-21turbostat00:24:592
29084991913,3cyclictest0-21swapper/222:25:152
2908499190,18cyclictest0-21swapper/200:00:002
2908399193,15cyclictest25621-21expr20:00:141
2908399192,2cyclictest4032-21accounts22:10:211
29083991917,1cyclictest246442chrt21:52:161
29083991917,1cyclictest12765-21switchtime19:35:231
29083991916,2cyclictest18386-21cat20:45:161
2908399191,17cyclictest0-21swapper/122:25:221
2908399191,16cyclictest27095-21grep21:00:171
2908399190,4cyclictest12824-21smartctl23:25:191
2908399190,2cyclictest3981-21H222:10:211
2908399190,18cyclictest7060-21python300:12:511
2908399190,18cyclictest21146-21grep19:50:191
2908399190,18cyclictest0-21swapper/100:20:131
2908399190,17cyclictest0-21swapper/119:15:551
2908399190,16cyclictest4099-21H222:10:211
2908399190,16cyclictest3989-21H222:10:211
2908399190,16cyclictest3983-21H222:10:211
2908399190,16cyclictest3979-21H222:10:211
2908399190,16cyclictest3979-21H222:10:211
2908299191,2cyclictest0-21swapper/020:35:180
2908299190,16cyclictest3989-21H222:10:210
2908299190,16cyclictest3989-21H222:10:210
2908299190,16cyclictest3989-21H222:10:210
2908299190,16cyclictest3976-21H222:10:210
29084991818,0cyclictest0-21swapper/221:55:142
29084991816,1cyclictest12171-21latency_hist20:35:002
29084991815,2cyclictest3985-21H222:10:212
29084991815,2cyclictest23131-21expr21:50:142
29084991815,2cyclictest22380-21cat22:45:172
29084991815,2cyclictest20982-21apt-config22:45:002
29084991815,2cyclictest1073-21grep21:10:192
29084991814,3cyclictest9831-21cat20:30:002
29084991814,3cyclictest3991-21H222:10:212
2908499181,2cyclictest31088-21processes23:00:192
2908499181,2cyclictest22095-21chrt21:49:372
2908499181,16cyclictest24351-21grep20:55:162
2908499181,16cyclictest18689-21chrt00:30:512
2908499180,2cyclictest3989-21H222:10:212
2908499180,2cyclictest3976-21H222:10:212
2908499180,17cyclictest5787-21rm21:20:002
2908499180,17cyclictest15497-21/usr/sbin/munin20:40:232
2908499180,16cyclictest4099-21H222:10:212
2908499180,16cyclictest3985-21H222:10:212
2908499180,16cyclictest3981-21H222:10:212
2908499180,15cyclictest3979-21H222:10:212
2908399183,1cyclictest21-21ksoftirqd/122:10:571
2908399182,1cyclictest0-21swapper/120:40:291
2908399182,15cyclictest3982-21H222:10:211
2908399182,15cyclictest29440-21cpuspeed_turbos21:05:141
2908399182,15cyclictest0-21swapper/123:05:001
29083991816,1cyclictest0-21swapper/120:10:251
29083991816,1cyclictest0-21swapper/120:10:251
29083991815,2cyclictest3987-21H222:10:211
29083991814,3cyclictest3976-21H222:10:211
29083991814,2cyclictest0-21swapper/122:20:171
29083991814,2cyclictest0-21swapper/122:20:171
2908399181,1cyclictest0-21swapper/121:46:591
2908399181,1cyclictest0-21swapper/120:21:081
2908399180,17cyclictest863-21avahi-daemon20:15:211
2908399180,17cyclictest28056-21grep20:05:141
2908399180,15cyclictest0-21swapper/100:34:071
2908299182,15cyclictest18454-21cpuspeed_turbos22:40:170
29082991814,3cyclictest4099-21H222:10:210
29082991814,3cyclictest3976-21H222:10:210
29082991814,3cyclictest3976-21H222:10:210
29082991814,3cyclictest30053-21sshd22:01:140
2908299181,15cyclictest0-21swapper/000:27:510
2908299180,2cyclictest4099-21H222:10:210
2908299180,2cyclictest3991-21H222:10:210
2908299180,2cyclictest3991-21H222:10:210
2908299180,2cyclictest3981-21H222:10:210
2908299180,17cyclictest3985-21H222:10:210
2908299180,17cyclictest3985-21H222:10:210
2908299180,17cyclictest3983-21H222:10:210
2908299180,17cyclictest10474-21cut00:20:000
2908299180,15cyclictest3989-21H222:10:210
2908299180,15cyclictest3979-21H222:10:210
2908299180,15cyclictest0-21swapper/000:20:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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