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2025-11-28 - 12:22
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot4.osadl.org (updated Fri Nov 28, 2025 00:46:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8194562366359,4sleep40-21swapper/419:08:0810
8194562366359,4sleep40-21swapper/419:08:0810
8194602358338,13sleep80-21swapper/819:08:1314
8194602358338,13sleep80-21swapper/819:08:1314
8192872357349,5sleep120-21swapper/1219:05:514
8192872357349,5sleep120-21swapper/1219:05:514
8192812356313,15sleep60-21swapper/619:05:4612
8192812356313,15sleep60-21swapper/619:05:4612
8196032355312,34sleep30-21swapper/319:09:449
8196032355312,34sleep30-21swapper/319:09:439
8193842355311,15sleep150-21swapper/1519:07:157
8193842355311,15sleep150-21swapper/1519:07:157
8195452354311,34sleep140-21swapper/1419:09:076
8195452354311,34sleep140-21swapper/1419:09:076
8170492351342,6sleep90-21swapper/919:05:1615
8170492351342,6sleep90-21swapper/919:05:1615
8194772343319,15sleep50-21swapper/519:08:2611
8194772343319,15sleep50-21swapper/519:08:2611
8192992343321,14sleep70-21swapper/719:06:0313
8192992343321,14sleep70-21swapper/719:06:0313
8193312341319,14sleep20-21swapper/219:06:308
8193312341319,14sleep20-21swapper/219:06:308
8194462339318,13sleep110-21swapper/1119:08:003
8194462339318,13sleep110-21swapper/1119:08:003
8193252339317,14sleep130-21swapper/1319:06:255
8193252339317,14sleep130-21swapper/1319:06:255
8194342338316,14sleep00-21swapper/019:07:490
8194342338316,14sleep00-21swapper/019:07:490
8192852337314,15sleep100-21swapper/1019:05:502
8192852337314,15sleep100-21swapper/1019:05:502
8193702336314,14sleep10-21swapper/119:07:011
8193702336314,14sleep10-21swapper/119:07:011
82008199293293,0cyclictest0-21swapper/1320:05:195
82005499253252,1cyclictest870658-21nodev-device-ev20:05:1811
8200819910197,3cyclictest1041643-21nodev-device-ev23:25:195
8200819910099,1cyclictest943303-21nodev-device-ev21:30:185
820054999695,1cyclictest0-21swapper/520:45:1911
820074999493,1cyclictest1097229-21nodev-device-ev00:30:233
820061999493,1cyclictest0-21swapper/721:25:2113
820088999392,1cyclictest0-21swapper/1500:10:187
820049999392,1cyclictest0-21swapper/319:10:199
820049999392,1cyclictest0-21swapper/319:10:199
820041999291,1cyclictest0-21swapper/123:30:171
820059998483,1cyclictest0-21swapper/623:10:1912
820081998281,1cyclictest900561-21nodev-device-ev20:40:185
820069998281,1cyclictest1045900-21nodev-device-ev23:30:1715
820044997978,1cyclictest0-21swapper/222:45:208
820061997674,2cyclictest0-21swapper/719:15:0013
820054997675,1cyclictest0-21swapper/522:20:1811
820054997675,1cyclictest0-21swapper/522:20:1811
820084997271,1cyclictest1037364-21nodev-device-ev23:20:196
820081996867,1cyclictest0-21swapper/1322:30:195
820074996665,1cyclictest1075866-21nodev-device-ev00:05:173
820054995958,1cyclictest0-21swapper/521:30:1911
82008499580,57cyclictest968915-21daemon-init22:00:186
820061995857,1cyclictest1071556-21nodev-device-ev00:00:2113
820054995856,2cyclictest0-21swapper/523:25:1911
820088995756,1cyclictest968946-21nodev-device-ev22:00:187
820061995251,1cyclictest0-21swapper/723:50:2013
820064995048,1cyclictest0-21swapper/800:15:2014
820081994948,1cyclictest0-21swapper/1319:50:205
820061994948,1cyclictest0-21swapper/720:00:1713
820054994140,1cyclictest0-21swapper/520:40:1811
820081993938,1cyclictest0-21swapper/1321:00:235
820084993736,1cyclictest1028834-21nodev-device-ev23:10:196
820049993736,1cyclictest0-21swapper/300:30:239
820071993534,1cyclictest1007427-21nodev-device-ev22:45:202
820088993433,1cyclictest939048-21nodev-device-ev21:25:217
820051993428,3cyclictest0-21swapper/420:35:1610
820039993433,1cyclictest1084412-21nodev-device-ev00:15:200
82007499337,25cyclictest0-21swapper/1119:17:383
82007499337,17cyclictest0-21swapper/1120:23:323
82007499337,13cyclictest0-21swapper/1120:56:293
820051993333,0cyclictest0-21swapper/422:14:3410
82005199330,33cyclictest854057-21kworker/4:0-events20:20:2110
820081993226,5cyclictest2055-21snmpd23:55:335
82007499327,17cyclictest0-21swapper/1119:50:353
82007499327,13cyclictest0-21swapper/1121:51:243
820054993232,0cyclictest0-21swapper/500:31:3311
820054993232,0cyclictest0-21swapper/500:15:2511
820051993232,0cyclictest0-21swapper/421:12:2010
82007499317,16cyclictest0-21swapper/1123:41:143
820054993131,0cyclictest0-21swapper/522:43:1511
820054993131,0cyclictest0-21swapper/519:21:3911
820051993131,0cyclictest0-21swapper/422:43:1410
820079993029,1cyclictest0-21swapper/1222:15:184
820079993029,1cyclictest0-21swapper/1222:15:184
82007499306,10cyclictest0-21swapper/1122:57:183
82007499305,25cyclictest0-21swapper/1121:40:253
820054993030,0cyclictest0-21swapper/522:29:5511
820054993030,0cyclictest0-21swapper/522:29:5511
820054993030,0cyclictest0-21swapper/521:54:3511
820054993030,0cyclictest0-21swapper/521:15:0911
820054993030,0cyclictest0-21swapper/520:28:5211
820054993030,0cyclictest0-21swapper/519:56:2011
820054993030,0cyclictest0-21swapper/519:36:3411
820054993030,0cyclictest0-21swapper/500:25:4711
820051993030,0cyclictest0-21swapper/423:24:0310
820051993028,2cyclictest0-21swapper/400:25:4710
820074992925,4cyclictest2055-21snmpd20:04:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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