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2026-06-24 - 09:28
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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 792 highest latencies:
System rackeslot6.osadl.org (updated Wed Jun 24, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
54459099133122,8cyclictest622157-21latency_hist23:10:011
54459099123111,9cyclictest573372-21latency_hist20:40:011
54459099118110,6cyclictest541401-21kworker/u8:0+events_unbound19:25:011
54459099118107,8cyclictest559045-21latency_hist19:55:011
54458999116100,13cyclictest617148-21http22:55:010
54459099114109,3cyclictest631682-21kworker/u8:0+events_unbound00:25:011
54459099114106,6cyclictest1213033-21systemd-journal00:03:591
54459099111106,4cyclictest622143-21kworker/u8:1+events_unbound23:30:221
54459099111106,4cyclictest592957-21kworker/u8:1+events_unbound21:40:251
54459099108103,4cyclictest548324-21kworker/u8:1+events_unbound19:35:011
5445909910599,5cyclictest555898-21kworker/u8:1+flush-179:020:00:341
5445909910397,4cyclictest596162-21kworker/u8:1+flush-179:021:50:151
5445899910291,8cyclictest651146-21latency_hist00:40:020
5445909910196,4cyclictest620557-21kworker/u8:2+events_unbound23:10:271
5445909910095,4cyclictest647930-21kworker/u8:3+flush-179:000:30:251
5445909910091,4cyclictest615554-21kworker/u8:2+events_unbound22:55:261
544590999986,5cyclictest574950-21kworker/u8:0+events_unbound20:45:191
544590999893,4cyclictest600935-21kworker/u8:2+flush-179:022:10:251
544590999893,4cyclictest544418-21kworker/u8:3+flush-179:019:10:241
544590999883,5cyclictest594569-21kworker/u8:2+events_unbound21:45:121
544589999888,7cyclictest510-21rs:main0
544590999690,4cyclictest631682-21kworker/u8:0+flush-179:000:25:211
544590999589,4cyclictest631682-21kworker/u8:0+events_unbound00:10:241
544590999589,4cyclictest631682-21kworker/u8:0+events_unbound00:10:241
544589999585,7cyclictest579998-21latency_hist21:00:020
544589999585,7cyclictest579998-21latency_hist21:00:010
544590999489,4cyclictest589842-21kworker/u8:3+flush-179:021:30:251
544590999488,4cyclictest597793-21kworker/u8:3+flush-179:022:35:201
544590999287,4cyclictest583216-21kworker/u8:2+events_unbound21:10:171
544590999185,4cyclictest544418-21kworker/u8:3+flush-179:019:15:141
544590999085,4cyclictest600935-21kworker/u8:2+events_unbound22:15:201
544590999085,4cyclictest574950-21kworker/u8:0+events_unbound20:50:221
544590999085,4cyclictest552664-21kworker/u8:3+events_unbound20:05:231
544590999082,5cyclictest554254-21kworker/u8:0+flush-179:019:45:001
544590999081,3cyclictest597793-21kworker/u8:3+events_unbound21:55:201
544590998878,8cyclictest586890-21apt-get21:20:121
544589998879,7cyclictest510-21rs:main0
544590998782,4cyclictest529547-21kworker/u8:2+flush-179:019:20:211
544589998780,5cyclictest646343-21kworker/u8:2+flush-179:000:30:010
544590998681,4cyclictest565444-21kworker/u8:0+events_unbound20:25:231
544589998677,7cyclictest588219-21latency_hist21:25:010
544590998580,3cyclictest613920-21kworker/u8:0+events_unbound22:45:131
544589998577,6cyclictest575099-21gpgv20:45:010
544590998480,3cyclictest631682-21kworker/u8:0+flush-179:023:50:211
544590998479,4cyclictest552664-21kworker/u8:3+flush-179:020:10:171
544590998375,5cyclictest615554-21kworker/u8:2+events_unbound22:50:191
544590998278,3cyclictest622143-21kworker/u8:1+events_unbound23:20:201
544590998277,4cyclictest569835-21kworker/u8:1+flush-179:020:30:211
544589998276,5cyclictest641550-21kworker/u8:2+flush-179:000:15:220
544589998276,5cyclictest641550-21kworker/u8:2+flush-179:000:15:220
544590998175,4cyclictest604108-21kworker/u8:1+flush-179:022:25:291
544590998074,4cyclictest630087-21kworker/u8:3+events_unbound23:40:191
544590997975,3cyclictest644735-21kworker/u8:1+flush-179:000:19:561
544590997975,3cyclictest644735-21kworker/u8:1+flush-179:000:19:561
544590997975,3cyclictest586359-21latency_hist21:20:011
544589997970,7cyclictest577072-21apt-get20:50:120
544590997873,4cyclictest597793-21kworker/u8:3+flush-179:022:30:251
544590997773,3cyclictest644735-21kworker/u8:1+flush-179:000:35:251
544589997771,4cyclictest592989-21latency_hist21:40:010
544589997744,24cyclictest1213033-21systemd-journal23:21:190
544590997671,4cyclictest597793-21kworker/u8:3+events_unbound22:40:221
544595997569,4cyclictest555891-21turbostat19:45:013
544590997570,4cyclictest630087-21kworker/u8:3+events_unbound00:05:231
544590997570,4cyclictest620557-21kworker/u8:2+events_unbound23:15:111
544590997570,3cyclictest574950-21kworker/u8:0+events_unbound22:05:181
544590997563,10cyclictest1213033-21systemd-journal19:40:011
544589997568,5cyclictest630087-21kworker/u8:3+flush-179:000:05:240
544589997568,5cyclictest613945-21latency_hist22:45:000
544590997464,8cyclictest588473-21apt-get21:25:111
544590997267,4cyclictest577053-21kworker/u8:1+flush-179:020:55:291
544590997267,4cyclictest577053-21kworker/u8:1+flush-179:020:55:281
544590997266,5cyclictest563807-21kworker/u8:1+flush-179:020:17:391
544590997262,8cyclictest1213033-21systemd-journal23:50:001
544590997166,4cyclictest574950-21kworker/u8:0+flush-179:021:05:161
544589997164,5cyclictest567274-21apt-get20:20:120
544589997158,10cyclictest1213033-21systemd-journal23:05:020
544589997158,10cyclictest1213033-21systemd-journal23:05:010
544590997066,3cyclictest573339-21kworker/u8:2+events_unbound20:40:221
544589997065,2cyclictest604108-21kworker/u8:1+events_unbound22:15:290
544589997063,5cyclictest583216-21kworker/u8:2+flush-179:021:10:240
544590996863,4cyclictest636462-21kworker/u8:1+flush-179:023:59:561
544589996859,6cyclictest647930-21kworker/u8:3+flush-179:000:30:210
544589996856,9cyclictest1213033-21systemd-journal20:45:020
544590996763,3cyclictest626972-21kworker/u8:2+flush-179:023:35:231
544590996763,3cyclictest574950-21kworker/u8:0+flush-179:022:00:251
544590996762,4cyclictest600935-21kworker/u8:2+events_unbound22:20:251
544589996761,4cyclictest597793-21kworker/u8:3+events_unbound22:35:240
544589996663,2cyclictest569835-21kworker/u8:1+events_unbound20:30:010
544589996662,3cyclictest549276-21http19:25:000
544589996657,7cyclictest581598-21latency_hist21:05:000
544590996556,7cyclictest556416-21diskstats19:45:151
544589996555,7cyclictest607318-21latency_hist22:25:010
544590996455,7cyclictest1213033-21systemd-journal21:05:001
544589996456,6cyclictest548324-21kworker/u8:1+flush-179:019:30:000
544590996358,4cyclictest613920-21kworker/u8:0+events_unbound23:00:271
544590996358,4cyclictest613920-21kworker/u8:0+events_unbound23:00:261
544589996354,7cyclictest638105-40mandb00:00:010
544589996354,7cyclictest583182-21latency_hist21:10:000
544589996354,6cyclictest620557-21kworker/u8:2+flush-179:023:10:230
544589996353,7cyclictest597758-21latency_hist21:55:000
544589996345,15cyclictest607832-21apt-get22:25:140
544590996255,6cyclictest626972-21kworker/u8:2+flush-179:023:29:211
544589996156,3cyclictest569835-21kworker/u8:1+flush-179:020:30:260
544589996051,6cyclictest622143-21kworker/u8:1+flush-179:023:30:200
544589996049,8cyclictest644735-21kworker/u8:1+flush-179:000:20:160
54459499590,2cyclictest0-21swapper/200:27:592
544589995953,4cyclictest600935-21kworker/u8:2+flush-179:022:15:010
544589995952,5cyclictest639729-21latency_hist00:05:010
544589995950,7cyclictest541401-21kworker/u8:0+flush-179:019:15:190
544590995854,3cyclictest565444-21kworker/u8:0+events_unbound20:20:161
544589995852,5cyclictest631682-21kworker/u8:0+flush-179:000:15:010
544589995852,5cyclictest631682-21kworker/u8:0+flush-179:000:15:010
544590995753,3cyclictest589842-21kworker/u8:3+flush-179:021:39:471
544589995649,5cyclictest563807-21kworker/u8:1+events_unbound20:10:000
544589995649,5cyclictest541401-21kworker/u8:0+flush-179:019:30:220
544589995548,5cyclictest589228-21kworker/u8:2+flush-179:021:35:000
544589995548,5cyclictest552664-21kworker/u8:3+flush-179:019:50:160
544589995546,6cyclictest631699-21latency_hist23:40:010
544589995546,6cyclictest529547-21kworker/u8:2+events_unbound19:45:010
544589995545,7cyclictest569835-21kworker/u8:1+flush-179:020:35:240
544589995448,4cyclictest594569-21kworker/u8:2+flush-179:021:45:220
544595995345,7cyclictest0-21swapper/300:27:593
544594995349,2cyclictest0-21swapper/219:53:592
544589995348,4cyclictest615555-21kworker/u8:4+events_unbound23:05:180
544589995345,6cyclictest599621-21apt-get22:00:120
544589995248,2cyclictest548324-21kworker/u8:1+events_unbound19:35:250
544589995242,8cyclictest628523-21latency_hist23:30:010
54458999521,20cyclictest560698-21cat20:00:010
54458999520,49cyclictest714-21Xorg22:48:590
544590995134,15cyclictest552664-21kworker/u8:3+flush-179:020:00:001
544589995042,6cyclictest580055-21kworker/u8:3+flush-179:021:15:270
544589994938,9cyclictest630087-21kworker/u8:3+flush-179:023:40:200
4577091490,13ptp4l441ktimers/319:10:013
544589994840,5cyclictest620557-21kworker/u8:2+flush-179:023:15:200
544589994534,8cyclictest1213033-21systemd-journal20:11:400
54458999450,2cyclictest0-21swapper/023:48:590
54458999440,20cyclictest0-21swapper/019:15:010
544595994337,5cyclictest563837-21turbostat20:10:003
544589994337,4cyclictest555898-21kworker/u8:1+flush-179:019:45:240
544589994336,5cyclictest592957-21kworker/u8:1+flush-179:021:40:190
544589994333,8cyclictest601209-21apt-get22:05:110
544589994234,6cyclictest552664-21kworker/u8:3+events_unbound20:05:000
544595994139,1cyclictest0-21swapper/321:19:583
544595994038,1cyclictest0-21swapper/321:31:593
54459599400,39cyclictest628542-21turbostat23:30:013
544589994030,6cyclictest0-21swapper/022:32:590
544595993934,4cyclictest605721-21turbostat22:20:013
544595993933,5cyclictest0-21swapper/300:38:003
54459599390,38cyclictest642917-21turbostat00:15:013
54459599390,38cyclictest642917-21turbostat00:15:013
54459599390,38cyclictest547671-21turbostat19:20:003
54459599390,37cyclictest554282-21turbostat19:40:013
544589993928,8cyclictest1213033-21systemd-journal21:59:540
544594993835,2cyclictest0-21swapper/219:58:592
544594993834,2cyclictest0-21swapper/219:17:592
54459499380,35cyclictest0-21swapper/221:44:552
54459499380,35cyclictest0-21swapper/221:05:002
54459499380,35cyclictest0-21swapper/221:00:002
54459499380,35cyclictest0-21swapper/221:00:002
544589993828,8cyclictest565951-21diskstats20:15:130
544594993734,2cyclictest0-21swapper/223:27:592
544595993634,1cyclictest0-21swapper/320:15:593
544595993633,2cyclictest0-21swapper/321:42:593
544595993633,2cyclictest0-21swapper/321:00:003
544595993633,2cyclictest0-21swapper/320:59:593
544595993631,4cyclictest646366-21turbostat00:25:003
54459599360,35cyclictest0-21swapper/323:05:593
54459599360,35cyclictest0-21swapper/319:49:583
54459599360,1cyclictest0-21swapper/323:32:593
54459599360,1cyclictest0-21swapper/322:49:593
544594993633,2cyclictest0-21swapper/222:36:592
544594993633,2cyclictest0-21swapper/221:13:592
4577091360,3ptp4l61490irq/134-eno1-TxRx-022:55:033
544595993532,2cyclictest0-21swapper/319:13:003
544594993532,2cyclictest0-21swapper/223:09:592
544594993532,2cyclictest0-21swapper/220:50:592
544594993532,2cyclictest0-21swapper/219:49:562
544594993531,2cyclictest0-21swapper/221:17:592
544594993531,2cyclictest0-21swapper/220:43:592
54459499350,1cyclictest0-21swapper/223:44:552
54459499350,1cyclictest0-21swapper/219:24:592
544595993432,1cyclictest0-21swapper/319:54:003
544595993431,1cyclictest0-21swapper/323:36:003
54459599340,1cyclictest0-21swapper/322:14:553
544594993432,1cyclictest0-21swapper/221:55:002
544594993431,2cyclictest0-21swapper/219:31:592
544594993431,2cyclictest0-21swapper/200:36:592
544594993430,2cyclictest0-21swapper/221:35:592
54459499340,27cyclictest0-21swapper/222:40:122
544595993331,1cyclictest0-21swapper/323:42:593
544595993331,1cyclictest0-21swapper/320:34:563
544595993331,1cyclictest0-21swapper/319:20:593
544595993326,5cyclictest574982-21turbostat20:44:593
544594993330,2cyclictest0-21swapper/223:33:592
544594993329,2cyclictest0-21swapper/222:27:592
544589993320,12cyclictest0-21swapper/021:29:000
544595993229,2cyclictest0-21swapper/321:51:583
544595993225,5cyclictest562260-21turbostat20:05:003
54459599320,25cyclictest574982-21turbostat20:49:553
54459599320,1cyclictest0-21swapper/322:40:123
54459599320,1cyclictest0-21swapper/321:20:133
544594993229,2cyclictest0-21swapper/223:59:592
544594993229,2cyclictest0-21swapper/221:07:592
544594993225,6cyclictest0-21swapper/220:10:132
54459499320,30cyclictest0-21swapper/221:23:592
544595993128,2cyclictest0-21swapper/322:20:133
544595993128,2cyclictest0-21swapper/322:02:003
544594993127,2cyclictest0-21swapper/220:39:002
544594993126,4cyclictest0-21swapper/222:05:132
544594993125,5cyclictest0-21swapper/223:20:132
54459499310,29cyclictest0-21swapper/200:30:142
544595993028,1cyclictest0-21swapper/319:57:003
54459599300,2cyclictest0-21swapper/322:50:133
544594993028,1cyclictest0-21swapper/200:05:002
544594993027,2cyclictest0-21swapper/223:45:142
544594993027,2cyclictest0-21swapper/222:50:142
544594993027,2cyclictest0-21swapper/222:10:112
544594993027,2cyclictest0-21swapper/220:50:002
54459499300,2cyclictest0-21swapper/222:00:132
54459499300,28cyclictest0-21swapper/223:35:122
4577091300,6ptp4l61490irq/134-eno1-TxRx-022:30:013
544595992927,1cyclictest0-21swapper/323:55:143
544595992925,2cyclictest0-21swapper/320:10:143
544595992924,4cyclictest0-21swapper/323:45:143
54459599290,28cyclictest0-21swapper/300:15:033
54459599290,28cyclictest0-21swapper/300:15:033
544594992926,2cyclictest0-21swapper/223:05:012
544594992926,2cyclictest0-21swapper/223:05:012
544594992926,2cyclictest0-21swapper/222:20:142
54459499290,2cyclictest0-21swapper/220:20:152
54459499290,27cyclictest0-21swapper/200:15:032
54459499290,27cyclictest0-21swapper/200:15:032
54459499290,26cyclictest0-21swapper/221:59:592
54458999290,27cyclictest544584-21cyclictest19:10:020
54459599280,27cyclictest0-21swapper/320:20:143
54459599280,26cyclictest0-21swapper/321:55:163
54459599280,26cyclictest0-21swapper/321:25:143
54459599280,26cyclictest0-21swapper/321:10:153
54459599280,26cyclictest0-21swapper/320:25:133
54459599280,26cyclictest0-21swapper/319:25:033
544594992825,2cyclictest0-21swapper/220:00:592
544594992817,1cyclictest0-21swapper/222:35:002
54459499280,26cyclictest0-21swapper/220:30:592
54459499280,26cyclictest0-21swapper/219:27:002
4577091280,6ptp4l61490irq/134-eno1-TxRx-023:25:013
4577091280,6ptp4l61490irq/134-eno1-TxRx-022:35:013
4577091280,6ptp4l61490irq/134-eno1-TxRx-021:40:013
4577091280,6ptp4l61490irq/134-eno1-TxRx-021:10:003
4577091280,6ptp4l441ktimers/320:55:003
544595992725,1cyclictest0-21swapper/320:35:133
54459599270,1cyclictest0-21swapper/321:00:123
544594992725,1cyclictest0-21swapper/220:10:002
54459499270,2cyclictest0-21swapper/200:10:592
54459499270,2cyclictest0-21swapper/200:10:582
54459499270,24cyclictest0-21swapper/221:33:592
54459499270,24cyclictest0-21swapper/219:43:002
4577091270,6ptp4l441ktimers/322:09:553
4577091270,6ptp4l441ktimers/319:35:003
4577091270,5ptp4l441ktimers/322:40:013
54459599260,24cyclictest0-21swapper/323:00:133
54459599260,24cyclictest0-21swapper/323:00:123
544594992623,2cyclictest0-21swapper/223:52:592
544594992623,2cyclictest0-21swapper/219:14:552
544594992623,2cyclictest0-21swapper/200:24:562
4577091260,5ptp4l61490irq/134-eno1-TxRx-023:55:003
4577091260,5ptp4l61490irq/134-eno1-TxRx-021:49:563
54459599250,24cyclictest0-21swapper/300:00:593
544594992522,2cyclictest0-21swapper/222:58:592
544594992522,2cyclictest0-21swapper/222:47:592
544594992522,2cyclictest0-21swapper/220:17:592
544590992512,2cyclictest281ktimers/119:10:021
4577091250,5ptp4l441ktimers/323:19:553
4577091250,4ptp4l441ktimers/323:14:553
544594992421,2cyclictest0-21swapper/223:10:592
544594992421,2cyclictest0-21swapper/221:25:592
544595992321,1cyclictest0-21swapper/300:09:583
544594992320,2cyclictest0-21swapper/220:26:592
544595992219,2cyclictest0-21swapper/300:34:593
544594992219,2cyclictest0-21swapper/219:35:582
544594992118,2cyclictest0-21swapper/223:20:002
544594991916,2cyclictest0-21swapper/200:10:002
54459499118,2cyclictest0-21swapper/221:47:592
5445949963,2cyclictest0-21swapper/222:16:452
5445949930,2cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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