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2026-05-13 - 07:06
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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 rack1slot3.osadl.org (updated Wed May 13, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
148256199159,1cyclictest0-21swapper/321:05:173
1482561991511,1cyclictest0-21swapper/320:00:113
1482561991411,1cyclictest0-21swapper/322:40:133
148256199137,5cyclictest0-21swapper/323:35:133
1482561991312,0cyclictest0-21swapper/319:10:123
148256199130,11cyclictest0-21swapper/322:45:133
148256199130,11cyclictest0-21swapper/300:10:153
148256199120,1cyclictest0-21swapper/320:30:003
148256199120,11cyclictest0-21swapper/322:30:113
148256199120,11cyclictest0-21swapper/321:30:143
148256199120,11cyclictest0-21swapper/319:40:163
1482561991111,0cyclictest0-21swapper/323:50:123
1482561991111,0cyclictest0-21swapper/319:45:153
1482561991110,0cyclictest0-21swapper/319:35:173
1482561991110,0cyclictest0-21swapper/319:35:173
1482561991110,0cyclictest0-21swapper/300:25:163
148256199110,1cyclictest0-21swapper/322:20:123
148256199110,1cyclictest0-21swapper/321:35:123
148256199110,10cyclictest0-21swapper/323:20:013
148256199110,0cyclictest0-21swapper/323:45:183
148256199110,0cyclictest0-21swapper/322:35:123
148256199110,0cyclictest0-21swapper/321:53:573
148256199110,0cyclictest0-21swapper/321:45:193
148256199110,0cyclictest0-21swapper/321:15:133
1482561991010,0cyclictest0-21swapper/322:05:113
1482561991010,0cyclictest0-21swapper/320:40:003
1482561991010,0cyclictest0-21swapper/319:59:563
1482561991010,0cyclictest0-21swapper/319:20:123
148256199100,9cyclictest0-21swapper/323:40:123
148256199100,9cyclictest0-21swapper/323:00:143
148256199100,9cyclictest0-21swapper/321:25:003
148256199100,8cyclictest0-21swapper/320:20:183
148256199100,0cyclictest0-21swapper/322:15:023
148256199100,0cyclictest0-21swapper/300:00:013
14825619999,0cyclictest0-21swapper/322:54:013
14825619999,0cyclictest0-21swapper/319:30:123
14825619998,0cyclictest0-21swapper/322:26:243
14825619998,0cyclictest0-21swapper/320:40:133
14825619998,0cyclictest0-21swapper/300:35:133
14825619996,1cyclictest0-21swapper/321:55:123
14825619990,0cyclictest0-21swapper/323:20:183
14825619990,0cyclictest0-21swapper/319:17:383
1481547291,5sleep30-21swapper/319:05:193
14825619988,0cyclictest0-21swapper/323:25:193
14825619988,0cyclictest0-21swapper/300:35:013
14825619987,0cyclictest0-21swapper/300:20:123
14825619984,1cyclictest0-21swapper/300:00:133
14825619980,7cyclictest0-21swapper/320:55:163
14825619977,0cyclictest0-21swapper/323:10:213
14825619977,0cyclictest0-21swapper/323:05:473
14825619977,0cyclictest0-21swapper/321:10:213
14825619977,0cyclictest0-21swapper/320:15:133
14825619977,0cyclictest0-21swapper/319:25:193
14825619970,7cyclictest0-21swapper/321:40:173
1482163272,3sleep10-21swapper/119:06:451
14825619966,0cyclictest0-21swapper/300:20:013
14825619965,0cyclictest0-21swapper/322:15:183
14825619965,0cyclictest0-21swapper/322:00:133
14825619965,0cyclictest0-21swapper/300:05:123
14825619965,0cyclictest0-21swapper/300:05:123
14825619960,6cyclictest0-21swapper/322:55:183
14825619955,0cyclictest0-21swapper/321:25:133
14825619955,0cyclictest0-21swapper/320:10:133
14825619954,0cyclictest0-21swapper/320:05:113
14825619950,4cyclictest1516026-21chrt20:34:553
1613719240,2sleep11613745-21apt-get00:30:131
1522031240,2sleep21522057-21apt-get20:50:122
14825619944,0cyclictest0-21swapper/320:50:103
14825619944,0cyclictest0-21swapper/320:45:103
14825619944,0cyclictest0-21swapper/319:50:103
14825619943,0cyclictest0-21swapper/321:00:063
14825619940,3cyclictest1588378-21chrt23:30:023
1482106242,1sleep20-21swapper/219:06:022
1554801230,2sleep21554970-21/usr/sbin/munin22:10:132
1526671230,1sleep01526843-21python321:00:190
1495579230,2sleep21495750-21sed19:40:162
1480744231,1sleep00-21swapper/019:05:040
1609913220,1sleep21610068-21ssh00:20:172
1603458220,1sleep11603026-21/usr/sbin/munin00:05:151
1603458220,1sleep11603026-21/usr/sbin/munin00:05:151
1601015220,1sleep01601203-21cat00:00:140
1596981220,1sleep11597179-21diskstats23:50:151
1594410220,1sleep01594500-21sed23:45:010
1585891220,0sleep00-21swapper/023:23:330
1582646220,1sleep21582848-21ntpq23:15:172
1577414220,0sleep00-21swapper/023:02:220
1567280220,0sleep00-21swapper/022:40:140
1560398220,1sleep20-21swapper/222:21:502
1558927220,1sleep00-21swapper/022:20:120
1552764220,1sleep21552980-21grep22:05:132
1550041220,1sleep21550093-21sh22:00:012
1544624220,1sleep01544778-21ntp_states21:45:180
1522805220,0sleep00-21swapper/020:50:180
1516276220,0sleep10-21swapper/120:35:101
1514981220,1sleep21515130-21ntp_states20:30:152
1500437220,1sleep21500471-21munin-run19:55:012
1492758220,0sleep21492784-21apt-get19:35:122
1492758220,0sleep21492784-21apt-get19:35:122
1490578220,1sleep00-21swapper/019:29:450
1486758220,1sleep01486930-21latency_hist19:20:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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