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2026-07-18 - 11:00
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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 Sat Jul 18, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30529992312,1cyclictest0-21swapper/223:33:362
30529992312,1cyclictest0-21swapper/223:33:352
3052899220,21cyclictest843-21systemd-network20:16:401
3052799220,4cyclictest0-21swapper/023:25:160
3052799220,17cyclictest0-21swapper/000:05:010
3052999210,20cyclictest843-21systemd-network23:23:322
3052799214,11cyclictest0-21swapper/021:12:230
3052999204,15cyclictest0-21swapper/223:52:582
3052999204,15cyclictest0-21swapper/220:24:592
30528992016,3cyclictest0-21swapper/122:56:501
30529991917,1cyclictest0-21swapper/222:09:112
30529991916,2cyclictest6117-21wc19:20:212
3052999190,18cyclictest0-21swapper/221:00:222
30528991916,2cyclictest5010-21wc22:10:181
30528991914,4cyclictest11075-21cat20:30:011
3052799190,15cyclictest0-21swapper/000:16:510
3052999182,15cyclictest14162-21cpuspeed_turbos20:35:142
3052999182,15cyclictest0-21swapper/223:25:152
30529991816,1cyclictest0-21swapper/223:57:302
30529991814,3cyclictest0-21swapper/222:29:052
3052999180,17cyclictest843-21systemd-network21:52:262
3052999180,15cyclictest3979-21H222:10:212
3052899183,1cyclictest0-21swapper/121:33:041
3052899182,15cyclictest10901-21latency22:20:161
3052899182,15cyclictest0-21swapper/121:35:211
30528991816,1cyclictest0-21swapper/122:40:001
30528991816,1cyclictest0-21swapper/121:49:141
30528991815,2cyclictest29413-21cut21:00:161
30528991814,3cyclictest22508-21systemctl23:40:011
30528991814,3cyclictest0-21swapper/121:15:181
30528991812,3cyclictest0-21swapper/119:25:141
3052899181,16cyclictest11604-21grep00:15:191
3052899180,2cyclictest3991-21H222:10:211
3052799182,15cyclictest0-21swapper/021:01:160
30527991815,2cyclictest7755-21cut22:15:150
30527991815,2cyclictest6772-21cut22:15:000
30527991815,2cyclictest22523-21cut22:40:170
3052799180,3cyclictest13306-21basename21:30:010
3052799180,15cyclictest0-21swapper/020:19:270
30529991716,1cyclictest28-21ksoftirqd/222:33:532
30529991714,2cyclictest8272-21nfsd419:25:172
30529991714,2cyclictest6025-21chrt22:12:342
30529991714,2cyclictest4563-21sshd00:05:082
30529991714,2cyclictest32718-21date22:05:012
30529991714,2cyclictest2778-21cat20:15:142
30529991714,2cyclictest2449-21expr21:10:142
30529991714,2cyclictest2359-21cat19:15:192
30529991714,2cyclictest23547-21smtpd22:43:272
30529991714,2cyclictest22252-21sed23:38:582
30529991714,2cyclictest17065-21tune2fs21:35:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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