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2026-04-25 - 15:49
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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 highest latencies:
System rackeslot6.osadl.org (updated Sat Apr 25, 2026 12:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
88244599117111,5cyclictest928769-21kworker/u8:0+flush-179:009:55:011
88244599109103,5cyclictest974411-21kworker/u8:3+events_unbound12:05:001
8824409910899,7cyclictest865590-21kworker/u8:0+flush-179:007:30:000
88244599106100,4cyclictest895095-21kworker/u8:3+events_unbound08:15:231
8824409910497,5cyclictest934116-21kworker/u8:2+events_unbound10:15:010
8824459910196,4cyclictest973019-21kworker/u8:1+flush-179:012:20:011
882445999889,7cyclictest915798-21apt-get08:55:001
882445999791,4cyclictest895095-21kworker/u8:3+flush-179:008:00:231
882445999791,4cyclictest895095-21kworker/u8:3+flush-179:008:00:221
882445999689,5cyclictest908429-21kworker/u8:2+flush-179:009:20:001
882445999387,4cyclictest942082-21kworker/u8:3+flush-179:010:40:001
882445999386,5cyclictest892609-21kworker/u8:1+events_unbound07:45:221
882445999385,7cyclictest930357-21kworker/u8:1+events_unbound09:50:011
882440999384,6cyclictest888709-21kworker/u8:2+flush-179:007:35:160
882445999286,5cyclictest895095-21kworker/u8:3+flush-179:008:15:001
882445999285,5cyclictest940432-21kworker/u8:1+flush-179:010:15:241
882445999285,4cyclictest948878-21kworker/u8:0+flush-179:011:40:211
882440999286,4cyclictest953731-21kworker/u8:1+events_unbound11:10:010
882440999183,5cyclictest928784-21latency_hist09:35:010
882440999082,6cyclictest887139-21latency_hist07:25:010
882440999080,7cyclictest919247-21latency_hist09:05:010
882440998983,4cyclictest948878-21kworker/u8:0+events_unbound11:45:240
882440998979,5cyclictest948878-21kworker/u8:0+events_unbound10:45:000
882445998883,4cyclictest916287-21kworker/u8:0+flush-179:009:00:251
882445998781,5cyclictest895095-21kworker/u8:3+flush-179:008:05:241
882445998781,4cyclictest888709-21kworker/u8:2+events_unbound07:35:241
882445998776,4cyclictest919211-21kworker/u8:1+flush-179:009:30:251
882440998779,5cyclictest934116-21kworker/u8:2+events_unbound10:05:230
882445998681,3cyclictest865590-21kworker/u8:0+events_unbound07:30:241
882445998679,5cyclictest948878-21kworker/u8:0+events_unbound10:45:151
882445998580,4cyclictest973019-21kworker/u8:1+events_unbound12:25:241
882445998548,35cyclictest714-21Xorg12:21:591
882440998579,4cyclictest924062-21kworker/u8:3+flush-179:009:20:240
882440998578,5cyclictest899936-21kworker/u8:1+flush-179:008:25:170
882440998577,6cyclictest895095-21kworker/u8:3+flush-179:008:00:000
882445998479,4cyclictest899936-21kworker/u8:1+events_unbound08:25:241
882445998475,7cyclictest940682-21/usr/sbin/munin10:10:231
882445998374,7cyclictest972782-21latency_hist11:50:001
882440998376,5cyclictest924062-21kworker/u8:3+flush-179:009:35:170
882446998248,31cyclictest0-21swapper/212:21:592
882445998277,4cyclictest973019-21kworker/u8:1+events_unbound11:55:251
882445998277,4cyclictest966455-21kworker/u8:3+events_unbound11:30:221
882445998275,4cyclictest879385-21kworker/u8:1+events_unbound07:20:171
882440998274,6cyclictest908429-21kworker/u8:2+flush-179:008:40:000
88244099820,80cyclictest1-21systemd09:55:010
882445998175,4cyclictest973019-21kworker/u8:1+flush-179:012:05:201
882445998175,4cyclictest930357-21kworker/u8:1+flush-179:009:40:011
882445998175,4cyclictest924062-21kworker/u8:3+flush-179:009:25:151
882445998175,4cyclictest908429-21kworker/u8:2+events_unbound09:05:251
882445998169,5cyclictest942082-21kworker/u8:3+events_unbound11:05:231
882440998175,4cyclictest879385-21kworker/u8:1+flush-179:007:15:250
882445998073,6cyclictest948878-21kworker/u8:0+flush-179:011:15:001
882445997975,3cyclictest879385-21kworker/u8:1+flush-179:007:10:391
882445997975,3cyclictest879385-21kworker/u8:1+flush-179:007:10:381
882445997974,4cyclictest865590-21kworker/u8:0+events_unbound07:25:261
882440997973,4cyclictest928769-21kworker/u8:0+events_unbound09:40:040
882445997872,4cyclictest904637-21kworker/u8:0+events_unbound08:20:161
882445997772,4cyclictest919211-21kworker/u8:1+events_unbound09:20:221
882440997771,5cyclictest919211-21kworker/u8:1+flush-179:009:10:010
882440997770,5cyclictest973019-21kworker/u8:1+events_unbound12:00:000
882440997769,5cyclictest924062-21kworker/u8:3+events_unbound09:25:190
882445997670,5cyclictest892609-21kworker/u8:1+events_unbound07:40:231
882445997665,5cyclictest966401-21kworker/u8:2+events_unbound11:35:251
882445997568,5cyclictest948878-21kworker/u8:0+flush-179:010:54:591
882440997568,5cyclictest895095-21kworker/u8:3+flush-179:007:50:170
882440997567,6cyclictest930357-21kworker/u8:1+flush-179:009:45:150
882445997368,4cyclictest908429-21kworker/u8:2+flush-179:008:45:221
882445997366,5cyclictest934116-21kworker/u8:2+flush-179:010:00:011
882440997367,4cyclictest934116-21kworker/u8:2+flush-179:010:30:150
882440997366,5cyclictest908429-21kworker/u8:2+flush-179:008:55:040
882445997263,7cyclictest974411-21kworker/u8:3+flush-179:012:10:151
882445997262,7cyclictest987359-21latency_hist12:35:011
882440997266,5cyclictest934116-21kworker/u8:2+events_unbound10:20:230
882440997165,4cyclictest911074-21kworker/u8:3+events_unbound08:50:140
882445997065,4cyclictest895095-21kworker/u8:3+flush-179:007:50:261
882440997064,3cyclictest973019-21kworker/u8:1+flush-179:012:05:180
882440997062,6cyclictest900130-21/usr/sbin/munin08:05:180
882450996938,1cyclictest0-21swapper/312:22:003
882445996962,6cyclictest942082-21kworker/u8:3+events_unbound10:25:161
882445996962,5cyclictest934116-21kworker/u8:2+flush-179:010:05:191
882440996964,4cyclictest919211-21kworker/u8:1+events_unbound09:15:260
882440996964,3cyclictest908429-21kworker/u8:2+flush-179:008:30:240
882440996960,7cyclictest965068-21/usr/sbin/munin11:25:240
882445996861,5cyclictest988952-21latency_hist12:40:001
882445996762,4cyclictest934116-21kworker/u8:2+flush-179:010:30:241
882440996761,4cyclictest919211-21kworker/u8:1+flush-179:009:10:240
882440996759,5cyclictest895095-21kworker/u8:3+events_unbound08:10:150
882440996757,7cyclictest895095-21kworker/u8:3+flush-179:008:15:150
882440996756,8cyclictest957135-21apt-get11:00:110
882445996661,4cyclictest948878-21kworker/u8:0+flush-179:010:40:251
882445996661,3cyclictest937234-21kworker/u8:1+flush-179:010:00:181
882440996656,7cyclictest956866-21latency_hist11:00:000
882445996559,5cyclictest948878-21kworker/u8:0+events_unbound11:25:151
882440996563,1cyclictest938860-21latency_hist10:05:010
882440996556,8cyclictest948878-21kworker/u8:0+events_unbound11:40:000
882440996457,4cyclictest973019-21kworker/u8:1+flush-179:012:30:140
882445996358,4cyclictest930357-21kworker/u8:1+events_unbound09:40:011
882445996358,4cyclictest904637-21kworker/u8:0+events_unbound08:35:151
882440996358,4cyclictest942082-21kworker/u8:3+flush-179:010:25:170
882440996357,4cyclictest973019-21kworker/u8:1+events_unbound12:20:210
882445996256,5cyclictest953731-21kworker/u8:1+events_unbound11:00:241
882445996256,4cyclictest919211-21kworker/u8:1+events_unbound09:10:181
882445996155,5cyclictest879385-21kworker/u8:1+flush-179:007:15:221
88244699600,56cyclictest0-21swapper/210:00:002
882445996054,4cyclictest899936-21kworker/u8:1+flush-179:008:40:161
882445996053,5cyclictest895092-21kworker/u8:2+flush-179:007:55:261
882440996055,4cyclictest904637-21kworker/u8:0+flush-179:008:20:230
882440996054,4cyclictest942082-21kworker/u8:3+flush-179:010:45:200
882440996051,6cyclictest987350-21kworker/u8:3+flush-179:012:35:230
882440996046,5cyclictest973019-21kworker/u8:1+events_unbound12:15:260
882445995954,4cyclictest908429-21kworker/u8:2+flush-179:008:55:161
882445995952,5cyclictest964016-21kworker/u8:1+flush-179:011:20:221
882440995946,4cyclictest937234-21kworker/u8:1+events_unbound10:00:010
882440995853,3cyclictest934116-21kworker/u8:2+flush-179:010:15:040
882440995851,5cyclictest964016-21kworker/u8:1+flush-179:011:20:270
882440995848,8cyclictest1213033-21systemd-journal10:40:000
882440995847,8cyclictest960594-21diskstats11:10:160
882445995752,4cyclictest908429-21kworker/u8:2+flush-179:008:30:221
882440995751,4cyclictest948878-21kworker/u8:0+flush-179:010:50:150
882450995653,2cyclictest0-21swapper/310:00:003
882440995647,7cyclictest971198-21latency_hist11:45:010
882440995550,4cyclictest974411-21kworker/u8:3+flush-179:012:10:160
882445995448,4cyclictest934116-21kworker/u8:2+events_unbound10:20:131
882440995343,4cyclictest865590-21kworker/u8:0+flush-179:007:30:200
882440995244,6cyclictest882387-21kworker/u8:2+flush-179:007:10:360
882440995244,6cyclictest882387-21kworker/u8:2+flush-179:007:10:350
882440994944,4cyclictest865590-21kworker/u8:0+flush-179:007:40:200
4577091490,14ptp4l441ktimers/307:10:003
882445994841,5cyclictest882330-21latency_hist07:10:011
882445994839,3cyclictest948878-21kworker/u8:0+events_unbound11:50:211
882450994740,5cyclictest885541-21turbostat07:20:003
882440994739,6cyclictest968006-21latency_hist11:35:000
882440994642,3cyclictest973019-21kworker/u8:1+flush-179:012:25:340
88245099450,43cyclictest953695-21turbostat10:50:003
882440994538,5cyclictest510-21rs:main0
88244699430,34cyclictest0-21swapper/212:09:562
882445994339,3cyclictest948878-21kworker/u8:0+flush-179:011:15:191
88245099420,40cyclictest971211-21turbostat11:45:003
88245099420,1cyclictest0-21swapper/310:14:553
882440994237,4cyclictest892609-21kworker/u8:1+events_unbound07:45:250
882440994235,5cyclictest961892-21apt-get11:15:130
88245099410,39cyclictest948921-21turbostat10:35:003
88245099400,38cyclictest980745-21turbostat12:14:593
88245099400,38cyclictest974381-21turbostat11:55:003
882446994036,2cyclictest0-21swapper/208:19:552
882440994034,4cyclictest948878-21kworker/u8:0+flush-179:011:50:150
88245099390,4cyclictest982598-21turbostat12:20:013
88245099390,4cyclictest927205-21turbostat09:30:003
88245099390,38cyclictest963239-21turbostat11:19:593
88244699390,2cyclictest0-21swapper/210:04:562
882440993930,4cyclictest908429-21kworker/u8:2+events_unbound08:43:330
882450993836,1cyclictest0-21swapper/312:09:553
882446993835,2cyclictest0-21swapper/211:55:592
882446993834,2cyclictest0-21swapper/211:00:592
882446993834,2cyclictest0-21swapper/207:32:592
88244699380,36cyclictest0-21swapper/211:08:592
88244699380,36cyclictest0-21swapper/209:25:592
88244699380,36cyclictest0-21swapper/209:17:002
88244699380,35cyclictest0-21swapper/211:39:562
88244699380,35cyclictest0-21swapper/209:52:592
88244699380,35cyclictest0-21swapper/207:25:002
88244699380,30cyclictest0-21swapper/212:37:592
882450993730,5cyclictest883950-21turbostat07:15:003
882450993730,5cyclictest883950-21turbostat07:14:593
88245099370,1cyclictest0-21swapper/308:27:593
882446993734,2cyclictest0-21swapper/210:49:552
88244699370,35cyclictest0-21swapper/207:42:002
882445993732,4cyclictest942082-21kworker/u8:3+flush-179:010:55:241
882450993634,1cyclictest0-21swapper/307:45:593
88245099360,35cyclictest0-21swapper/311:04:583
88245099360,35cyclictest0-21swapper/310:07:583
88245099360,35cyclictest0-21swapper/309:48:593
88245099360,1cyclictest0-21swapper/311:27:003
88245099360,1cyclictest0-21swapper/308:07:593
882446993632,2cyclictest0-21swapper/212:13:582
882446993632,2cyclictest0-21swapper/211:46:592
882440993633,2cyclictest211irq_work/008:04:590
882440993633,2cyclictest211irq_work/008:04:580
882450993533,1cyclictest0-21swapper/311:39:593
882450993533,1cyclictest0-21swapper/310:29:553
882450993533,1cyclictest0-21swapper/309:14:593
882450993533,1cyclictest0-21swapper/307:35:583
88245099350,1cyclictest0-21swapper/312:34:593
88245099350,1cyclictest0-21swapper/309:15:593
88245099350,1cyclictest0-21swapper/308:54:593
882446993532,2cyclictest0-21swapper/210:12:592
882450993432,1cyclictest0-21swapper/310:04:563
882450993432,1cyclictest0-21swapper/308:24:003
882446993431,2cyclictest0-21swapper/210:30:002
882446993431,2cyclictest0-21swapper/208:34:562
882446993430,2cyclictest0-21swapper/211:28:582
882450993331,1cyclictest0-21swapper/312:38:003
882450993330,2cyclictest0-21swapper/307:41:593
882446993330,2cyclictest0-21swapper/212:18:592
882446993330,2cyclictest0-21swapper/209:00:002
882446993329,2cyclictest0-21swapper/210:50:592
882450993230,1cyclictest0-21swapper/311:09:003
882450993229,2cyclictest0-21swapper/307:24:593
882446993229,2cyclictest0-21swapper/212:04:592
882446993228,2cyclictest0-21swapper/210:36:592
882440993227,3cyclictest914212-21munin-plugin-st08:50:000
882450993128,2cyclictest0-21swapper/309:44:553
882446993128,2cyclictest0-21swapper/209:10:592
882446993127,2cyclictest0-21swapper/208:48:592
882450993029,1cyclictest0-21swapper/309:52:593
882450993027,2cyclictest0-21swapper/309:30:593
882450993025,2cyclictest0-21swapper/311:55:143
88245099300,26cyclictest0-21swapper/310:55:123
882446993027,2cyclictest0-21swapper/210:55:122
882446993026,2cyclictest0-21swapper/209:20:592
882446993025,2cyclictest0-21swapper/210:43:002
882446993024,2cyclictest0-21swapper/212:25:142
882446993024,2cyclictest0-21swapper/211:30:132
88244699300,28cyclictest0-21swapper/208:25:152
882450992927,1cyclictest0-21swapper/312:25:133
882450992927,1cyclictest0-21swapper/312:04:563
882450992927,1cyclictest0-21swapper/311:20:583
882450992927,1cyclictest0-21swapper/308:19:553
882450992926,2cyclictest0-21swapper/308:35:133
882450992925,2cyclictest0-21swapper/310:50:143
882450992923,2cyclictest0-21swapper/307:55:143
88245099290,28cyclictest0-21swapper/308:44:553
882446992926,2cyclictest0-21swapper/209:40:022
882446992926,2cyclictest0-21swapper/209:38:582
88244699290,27cyclictest0-21swapper/208:40:132
88244699290,27cyclictest0-21swapper/207:18:592
4577091290,6ptp4l441ktimers/311:35:013
882450992825,2cyclictest0-21swapper/308:00:143
882450992825,2cyclictest0-21swapper/308:00:143
882450992825,2cyclictest0-21swapper/307:33:003
882450992822,4cyclictest917653-21turbostat09:00:003
88245099280,26cyclictest0-21swapper/308:30:133
882446992825,2cyclictest0-21swapper/208:24:592
882446992825,2cyclictest0-21swapper/208:00:142
882446992825,2cyclictest0-21swapper/208:00:142
882446992825,2cyclictest0-21swapper/207:55:152
882446992825,2cyclictest0-21swapper/207:35:142
882446992824,2cyclictest0-21swapper/207:12:592
882446992824,2cyclictest0-21swapper/207:12:592
88244699280,2cyclictest0-21swapper/209:45:122
88244699280,2cyclictest0-21swapper/208:35:132
4577091280,7ptp4l61490irq/134-eno1-TxRx-008:15:013
4577091280,7ptp4l441ktimers/310:40:013
4577091280,7ptp4l441ktimers/309:40:003
882450992725,1cyclictest0-21swapper/309:20:593
4577091270,6ptp4l441ktimers/310:44:553
4577091270,6ptp4l441ktimers/307:30:003
88245099260,25cyclictest0-21swapper/310:17:593
882446992624,1cyclictest0-21swapper/211:24:592
882446992623,2cyclictest0-21swapper/211:40:122
882446992623,2cyclictest0-21swapper/209:32:592
882446992623,2cyclictest0-21swapper/208:10:132
88244699260,2cyclictest0-21swapper/212:31:592
4577091260,6ptp4l441ktimers/311:14:563
882450992523,1cyclictest0-21swapper/311:46:593
882446992522,2cyclictest0-21swapper/210:22:592
882446992522,2cyclictest0-21swapper/210:05:592
882446992522,2cyclictest0-21swapper/207:27:592
88244699250,23cyclictest0-21swapper/211:15:012
4577091250,6ptp4l61490irq/134-eno1-TxRx-007:54:563
4577091250,5ptp4l61490irq/134-eno1-TxRx-008:49:563
4577091250,4ptp4l61490irq/134-eno1-TxRx-009:10:013
4577091250,4ptp4l441ktimers/309:05:013
882446992421,2cyclictest0-21swapper/210:16:592
4577091240,6ptp4l441ktimers/310:24:563
882446992320,2cyclictest0-21swapper/210:30:582
882446992017,2cyclictest0-21swapper/211:54:002
882446992017,2cyclictest0-21swapper/209:08:592
882446992016,2cyclictest0-21swapper/211:17:592
882446991613,2cyclictest0-21swapper/208:53:592
882446991512,2cyclictest0-21swapper/207:48:592
88244699150,2cyclictest0-21swapper/209:02:542
882440991410,2cyclictest0-21swapper/007:10:010
8824469985,2cyclictest0-21swapper/207:51:442
8824469970,6cyclictest0-21swapper/208:06:202
8824469930,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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