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2026-08-27 - 01:20
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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 50 highest latencies:
System rackdslot0.osadl.org (updated Wed Aug 26, 2026 12:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26202992515,6cyclictest0-21swapper/209:50:192
26202992219,2cyclictest29041-21sessionclean09:09:002
26202992218,3cyclictest399-20systemd-journal11:20:012
26202992218,3cyclictest22755-21wc10:50:212
26193992214,3cyclictest0-21swapper/011:30:160
2619399221,17cyclictest0-21swapper/010:35:000
2620299214,16cyclictest17623-21fschecks_time07:50:152
2620299214,16cyclictest0-21swapper/210:13:222
2620299213,3cyclictest25107-21munin-plugin-st10:00:012
26202992118,2cyclictest2282-21sed07:25:012
26202992118,2cyclictest1156-21http12:10:012
2619799214,16cyclictest0-21swapper/110:25:551
2619399215,15cyclictest25718-21ls11:55:120
2620299203,16cyclictest3396-21cat09:20:142
2620299203,16cyclictest3396-21cat09:20:142
2620299203,16cyclictest26687-21expr07:10:142
2620299203,16cyclictest16620-21expr12:35:132
26202992017,2cyclictest9348-21cut07:35:172
26202992017,2cyclictest9348-21cut07:35:172
26202992017,2cyclictest848-21sed11:10:172
26202992017,2cyclictest5875-21nfsd410:20:172
26202992017,2cyclictest31198-21expr08:15:142
26202992017,2cyclictest21251-21cat11:45:222
26202992017,2cyclictest11148-21fschecks_time12:25:132
26202992016,3cyclictest21086-21cat08:55:012
26202992016,3cyclictest16289-21sed12:35:012
2620299200,18cyclictest9705-21dump-pmu-power10:30:012
2619799202,16cyclictest0-21swapper/112:25:131
2620299193,15cyclictest0-21swapper/210:45:012
2620299192,16cyclictest32738-21expr09:15:142
2620299192,16cyclictest22499-21cpu08:00:132
2620299192,16cyclictest15115-21find10:38:592
2620299192,16cyclictest1085-21gdbus09:10:202
26202991916,2cyclictest8617-21cpu09:30:122
26202991916,2cyclictest7007-21readlink07:30:212
26202991916,2cyclictest27211-21sed10:00:212
26202991916,2cyclictest23953-21nfsd411:50:192
26202991916,2cyclictest20347-21sed10:45:242
26202991916,2cyclictest15621-21switchtime11:35:212
26202991916,2cyclictest12060-21chrt08:35:402
26202991916,2cyclictest11982-21basename11:30:142
2620299191,17cyclictest6610-21if_enp1s011:20:162
2620299191,17cyclictest0-21swapper/208:30:192
26197991916,2cyclictest20220-21fschecks_count11:45:151
2619799190,1cyclictest0-21swapper/108:35:151
2619399193,15cyclictest9-21ksoftirqd/008:05:340
26193991914,3cyclictest3058-21rs:main0
26193991912,6cyclictest25629-21kworker/0:109:35:150
2620299182,2cyclictest271rcuc/208:45:012
2620299182,16cyclictest26187-21cyclictest12:11:412
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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