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2026-05-24 - 12:56
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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 Sun May 24, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2134099129117,9cyclictest74382-21latency_hist21:55:020
2134199121106,11cyclictest1213033-21systemd-journal23:40:001
2134099119108,8cyclictest83448-21cat22:20:020
2134199115103,4cyclictest1210-21kworker/u8:0+events_unbound19:10:231
2134199113103,8cyclictest71210-21latency_hist21:45:011
2134099113108,3cyclictest55250-21kworker/u8:2+flush-179:021:00:230
2134099112100,8cyclictest1-21systemd23:40:000
2134199109104,4cyclictest32752-21kworker/u8:0+flush-179:019:45:261
2134099107101,5cyclictest115603-21kworker/u8:3+events_unbound00:00:170
213419910495,7cyclictest125167-21latency_hist00:30:011
213409910495,7cyclictest115537-40logrotate00:00:000
213409910196,4cyclictest71203-21kworker/u8:2+flush-179:022:00:270
21340999987,6cyclictest71203-21kworker/u8:2+events_unbound21:55:010
21341999885,5cyclictest55250-21kworker/u8:2+events_unbound21:05:241
21341999885,5cyclictest55250-21kworker/u8:2+events_unbound21:05:241
21340999890,6cyclictest101195-21kworker/u8:0+events_unbound23:30:010
21341999791,4cyclictest76203-21kworker/u8:0+events_unbound22:10:231
21341999785,5cyclictest26073-21kworker/u8:2+events_unbound20:30:131
21340999791,4cyclictest61362-21kworker/u8:1+events_unbound21:35:240
21340999790,5cyclictest42240-21kworker/u8:1+events_unbound20:15:260
21340999788,7cyclictest91598-21kworker/u8:0+events_unbound22:49:590
21340999686,4cyclictest81765-21kworker/u8:2+events_unbound22:35:250
21341999587,5cyclictest37534-21kworker/u8:0+events_unbound20:10:141
21341999586,7cyclictest109160-21kworker/u8:2+events_unbound00:15:211
21341999586,7cyclictest109160-21kworker/u8:2+events_unbound00:15:201
21341999582,4cyclictest93234-21kworker/u8:3+events_unbound23:05:141
21340999590,3cyclictest64564-21kworker/u8:2+events_unbound21:25:240
21340999389,3cyclictest26073-21kworker/u8:2+flush-179:019:55:240
21340999384,6cyclictest101209-21latency_hist23:15:010
21341999187,3cyclictest101195-21kworker/u8:0+flush-179:023:25:241
21340999186,4cyclictest93234-21kworker/u8:3+flush-179:023:30:270
21341999085,4cyclictest26073-21kworker/u8:2+flush-179:020:10:001
21341999082,4cyclictest87116-21kworker/u8:1+flush-179:022:40:021
21341999079,9cyclictest27684-21apt-get19:30:021
21341998985,3cyclictest96354-21kworker/u8:2+flush-179:023:15:251
21340998982,6cyclictest101195-21kworker/u8:0+flush-179:023:45:250
21340998981,6cyclictest43845-21kworker/u8:0+flush-179:020:25:240
21341998883,4cyclictest96354-21kworker/u8:2+events_unbound23:20:241
21341998882,5cyclictest51819-21kworker/u8:1+events_unbound20:45:211
21341998881,5cyclictest76203-21kworker/u8:0+events_unbound22:15:161
21341998881,5cyclictest33118-21kworker/u8:3+events_unbound19:50:241
21340998876,9cyclictest81268-21latency_hist22:15:000
21341998678,6cyclictest115603-21kworker/u8:3+flush-179:000:15:001
21340998678,5cyclictest123580-21latency_hist00:25:010
21340998677,7cyclictest123561-21kworker/u8:1+events_unbound00:25:230
21340998579,4cyclictest43845-21kworker/u8:0+flush-179:020:20:220
21341998480,3cyclictest26073-21kworker/u8:2+flush-179:019:40:251
21341998474,8cyclictest115840-21apt-get00:00:131
21340998480,3cyclictest61362-21kworker/u8:1+flush-179:021:40:210
21340998476,6cyclictest26073-21kworker/u8:2+flush-179:019:25:270
21341998376,5cyclictest101195-21kworker/u8:0+events_unbound23:40:121
21341998375,6cyclictest109160-21kworker/u8:2+flush-179:023:50:241
21341998373,8cyclictest29781-21apt-get19:35:121
2134199832,76cyclictest1-21systemd00:00:001
21341998278,3cyclictest76203-21kworker/u8:0+events_unbound22:25:261
21341998277,4cyclictest71203-21kworker/u8:2+flush-179:021:55:261
21341998177,3cyclictest64564-21kworker/u8:2+events_unbound21:30:191
21341998172,4cyclictest24456-21kworker/u8:0+events_unbound19:25:181
21340998177,3cyclictest26073-21kworker/u8:2+flush-179:019:30:230
21340998176,3cyclictest93234-21kworker/u8:3+flush-179:023:05:200
21340998174,5cyclictest96354-21kworker/u8:2+flush-179:023:00:250
21340998174,5cyclictest55250-21kworker/u8:2+flush-179:020:55:200
21341998075,3cyclictest93189-21kworker/u8:1+events_unbound22:50:151
21341998069,9cyclictest64835-21apt-get21:25:121
21340998074,4cyclictest37534-21kworker/u8:0+flush-179:020:10:200
21340998070,4cyclictest81765-21kworker/u8:2+events_unbound22:40:200
21341997975,3cyclictest76203-21kworker/u8:0+flush-179:022:20:241
21341997974,4cyclictest37534-21kworker/u8:0+flush-179:020:00:271
21341997973,4cyclictest42240-21kworker/u8:1+events_unbound20:15:161
21340997969,8cyclictest123561-21kworker/u8:1+flush-179:000:30:210
21340997967,4cyclictest76203-21kworker/u8:0+events_unbound22:05:150
21340997871,5cyclictest110772-21latency_hist23:45:010
21340997867,9cyclictest60053-21apt-get21:10:120
21341997770,5cyclictest106250-21apt-get23:30:131
21341997766,8cyclictest61383-21latency_hist21:15:011
21341997672,3cyclictest71242-21kworker/u8:3+events_unbound21:50:241
21341997672,3cyclictest3028567-21kworker/u8:1+events_unbound19:15:201
21340997570,4cyclictest61362-21kworker/u8:1+events_unbound21:20:230
21340997565,4cyclictest66155-21kworker/u8:0+events_unbound21:45:190
21341997470,3cyclictest71203-21kworker/u8:2+events_unbound21:45:301
21341997469,3cyclictest81765-21kworker/u8:2+events_unbound22:35:171
21340997470,3cyclictest76203-21kworker/u8:0+events_unbound22:20:240
21340997469,4cyclictest26073-21kworker/u8:2+events_unbound20:05:240
21340997469,4cyclictest123561-21kworker/u8:1+events_unbound00:35:210
21340997466,5cyclictest1210-21kworker/u8:0+events_unbound19:10:130
21341997369,3cyclictest120415-21kworker/u8:0+flush-179:000:20:211
21341997366,5cyclictest97987-21apt-get23:01:551
21340997369,3cyclictest51819-21kworker/u8:1+events_unbound20:45:250
21341997268,3cyclictest96354-21kworker/u8:2+flush-179:023:10:251
21340997267,4cyclictest32752-21kworker/u8:0+flush-179:019:45:280
21340997265,4cyclictest29502-21kworker/u8:1+events_unbound19:35:190
21340997261,4cyclictest109160-21kworker/u8:2+events_unbound23:50:230
21341997166,4cyclictest55250-21kworker/u8:2+flush-179:021:00:191
21341997166,4cyclictest53409-21kworker/u8:0+flush-179:020:50:261
21341997166,4cyclictest115603-21kworker/u8:3+events_unbound00:05:161
21341997166,3cyclictest43845-21kworker/u8:0+flush-179:020:20:131
21340997167,3cyclictest47089-21kworker/u8:1+flush-179:020:35:140
21340997166,4cyclictest26073-21kworker/u8:2+flush-179:019:40:250
21340997061,4cyclictest47089-21kworker/u8:1+events_unbound20:30:240
21340997060,8cyclictest93457-21apt-get22:50:110
21340996963,4cyclictest3028567-21kworker/u8:1+flush-179:019:15:150
21340996958,4cyclictest64564-21kworker/u8:2+events_unbound21:30:180
21341996863,4cyclictest61362-21kworker/u8:1+events_unbound21:20:191
21341996861,5cyclictest1213033-21systemd-journal00:36:061
21340996860,6cyclictest61640-21apt-get21:15:120
21341996763,3cyclictest93189-21kworker/u8:1+flush-179:022:55:251
21341996757,8cyclictest1213033-21systemd-journal20:30:011
21341996662,3cyclictest123561-21kworker/u8:1+flush-179:000:30:161
21341996659,5cyclictest50242-21latency_hist20:40:011
21340996662,3cyclictest81765-21kworker/u8:2+flush-179:022:30:250
2134399650,62cyclictest0-21swapper/319:47:593
21341996560,4cyclictest87116-21kworker/u8:1+flush-179:022:30:201
21341996460,3cyclictest55250-21kworker/u8:2+events_unbound20:55:191
21340996453,8cyclictest118797-21latency_hist00:10:020
21340996354,6cyclictest96383-21latency_hist23:00:020
21341996258,3cyclictest66155-21kworker/u8:0+flush-179:021:38:051
21340996257,4cyclictest96354-21kworker/u8:2+events_unbound23:15:250
21340996257,4cyclictest33118-21kworker/u8:3+events_unbound19:50:140
21340996150,9cyclictest24760-21apt-get19:20:110
21340996147,5cyclictest109160-21kworker/u8:2+events_unbound00:10:160
21341996055,4cyclictest91598-21kworker/u8:0+events_unbound22:45:221
21340995948,9cyclictest53682-21apt-get20:50:120
21340995851,6cyclictest76203-21kworker/u8:0+flush-179:022:25:250
21341995746,4cyclictest58187-21kworker/u8:0+events_unbound21:15:231
21340995753,3cyclictest109160-21kworker/u8:2+flush-179:000:15:280
21340995753,3cyclictest109160-21kworker/u8:2+flush-179:000:15:280
21341995551,3cyclictest50207-21kworker/u8:3+events_unbound20:40:201
21341995551,3cyclictest50207-21kworker/u8:3+events_unbound20:40:201
21340995551,3cyclictest50207-21kworker/u8:3+events_unbound20:40:240
21340995551,3cyclictest50207-21kworker/u8:3+events_unbound20:40:240
21342995452,1cyclictest0-21swapper/223:29:592
21341995449,4cyclictest77812-21kworker/u8:1+events_unbound22:05:261
21341995446,6cyclictest1213033-21systemd-journal22:05:001
21341995143,6cyclictest111030-21apt-get23:45:141
21341994944,4cyclictest26073-21kworker/u8:2+flush-179:019:55:171
4577091470,10ptp4l61490irq/134-eno1-TxRx-019:05:193
21342994721,1cyclictest0-21swapper/221:15:592
21341994743,3cyclictest24456-21kworker/u8:0+events_unbound19:20:231
21340994742,4cyclictest101195-21kworker/u8:0+events_unbound23:20:180
21343994235,6cyclictest61394-21turbostat21:15:003
21340994237,4cyclictest55250-21kworker/u8:2+flush-179:021:05:270
21340994237,4cyclictest55250-21kworker/u8:2+flush-179:021:05:260
2134299410,1cyclictest0-21swapper/223:15:592
21343994034,5cyclictest48646-21turbostat20:35:003
2134399400,4cyclictest89758-21turbostat22:40:013
2134399400,1cyclictest0-21swapper/320:11:593
2134299400,1cyclictest0-21swapper/221:35:592
21343993934,4cyclictest26102-21turbostat19:25:003
21343993933,5cyclictest112370-21turbostat23:50:003
2134399390,38cyclictest109198-21turbostat23:40:003
21343993834,3cyclictest61490irq/134-eno1-TxRx-021:24:553
21343993833,4cyclictest45477-21turbostat20:25:003
2134299380,36cyclictest0-21swapper/220:45:592
2134299380,36cyclictest0-21swapper/200:31:592
21343993731,5cyclictest104421-21turbostat23:25:003
2134399370,36cyclictest0-21swapper/319:30:593
2134399370,36cyclictest0-21swapper/300:07:593
21343993634,1cyclictest0-21swapper/320:54:553
21343993634,1cyclictest0-21swapper/300:04:553
21342993634,1cyclictest0-21swapper/200:24:582
21342993633,2cyclictest0-21swapper/220:23:592
21342993633,2cyclictest0-21swapper/200:18:592
21342993633,2cyclictest0-21swapper/200:18:592
2134299360,1cyclictest0-21swapper/200:39:582
21343993533,1cyclictest0-21swapper/323:29:553
21343993533,1cyclictest0-21swapper/319:59:563
21342993533,1cyclictest0-21swapper/223:09:592
21342993533,1cyclictest0-21swapper/220:10:002
21342993532,2cyclictest0-21swapper/222:56:592
21342993532,2cyclictest0-21swapper/222:49:002
21342993532,2cyclictest0-21swapper/221:59:002
21342993532,2cyclictest0-21swapper/221:07:592
21342993532,2cyclictest0-21swapper/221:07:582
2134299350,1cyclictest0-21swapper/223:42:592
2134299350,1cyclictest0-21swapper/220:40:592
2134299350,1cyclictest0-21swapper/220:40:592
4577091340,13ptp4l441ktimers/320:30:003
21342993432,1cyclictest0-21swapper/219:20:002
21342993431,2cyclictest0-21swapper/220:56:582
21342993431,2cyclictest0-21swapper/220:00:592
21340993430,3cyclictest1-21systemd19:10:010
21340993429,4cyclictest26073-21kworker/u8:2+flush-179:020:00:060
21343993331,1cyclictest0-21swapper/300:37:593
21343993330,2cyclictest0-21swapper/300:10:593
21342993330,2cyclictest0-21swapper/222:28:002
21342993230,1cyclictest0-21swapper/223:39:592
21342993230,1cyclictest0-21swapper/200:00:002
2134299320,30cyclictest0-21swapper/221:00:592
21343993129,1cyclictest0-21swapper/323:19:553
21343993129,1cyclictest0-21swapper/322:45:003
21343993129,1cyclictest0-21swapper/321:49:593
21343993129,1cyclictest0-21swapper/319:17:593
21343993126,4cyclictest76247-21turbostat21:59:593
2134299310,23cyclictest0-21swapper/220:50:132
21343993028,1cyclictest0-21swapper/322:34:583
21343993028,1cyclictest0-21swapper/322:25:153
21343993028,1cyclictest0-21swapper/321:18:593
21343993028,1cyclictest0-21swapper/320:41:593
21343993028,1cyclictest0-21swapper/320:41:593
21342993028,1cyclictest0-21swapper/221:44:592
21342993027,2cyclictest0-21swapper/220:35:122
21342993027,2cyclictest0-21swapper/219:25:132
21342993027,2cyclictest0-21swapper/200:00:132
2134299300,28cyclictest0-21swapper/222:40:042
4577091290,7ptp4l441ktimers/323:55:023
4577091290,7ptp4l441ktimers/322:05:013
4577091290,7ptp4l441ktimers/320:50:003
21343992927,1cyclictest0-21swapper/323:09:553
21343992926,2cyclictest0-21swapper/323:55:133
21343992926,2cyclictest0-21swapper/300:15:153
21343992926,2cyclictest0-21swapper/300:15:153
2134399290,28cyclictest0-21swapper/322:15:133
2134399290,28cyclictest0-21swapper/321:35:013
2134399290,28cyclictest0-21swapper/319:50:143
2134399290,27cyclictest0-21swapper/322:50:123
2134399290,1cyclictest0-21swapper/321:54:593
21342992927,1cyclictest0-21swapper/223:45:152
21342992927,1cyclictest0-21swapper/219:55:132
21342992926,2cyclictest0-21swapper/222:20:022
21342992926,2cyclictest0-21swapper/219:43:592
2134299290,27cyclictest0-21swapper/222:35:122
2134299290,27cyclictest0-21swapper/219:30:012
2134299290,1cyclictest0-21swapper/222:10:022
4577091280,7ptp4l61490irq/134-eno1-TxRx-019:40:003
4577091280,7ptp4l441ktimers/322:10:013
4577091280,7ptp4l441ktimers/319:14:553
4577091280,7ptp4l441ktimers/300:25:013
21343992826,1cyclictest0-21swapper/300:25:133
2134399280,2cyclictest0-21swapper/321:35:003
2134399280,26cyclictest0-21swapper/322:10:023
21342992826,1cyclictest0-21swapper/219:55:012
21342992825,2cyclictest0-21swapper/223:50:132
21342992825,2cyclictest0-21swapper/200:06:592
21342992824,3cyclictest0-21swapper/219:20:122
4577091270,6ptp4l61490irq/134-eno1-TxRx-021:05:013
4577091270,6ptp4l441ktimers/323:34:563
4577091270,6ptp4l441ktimers/320:20:013
21343992725,1cyclictest0-21swapper/321:45:003
21343992725,1cyclictest0-21swapper/321:25:133
21343992725,1cyclictest0-21swapper/320:37:593
2134399270,26cyclictest0-21swapper/322:55:143
2134399270,26cyclictest0-21swapper/320:05:003
2134399270,1cyclictest0-21swapper/320:55:123
21342992724,2cyclictest0-21swapper/221:45:172
21342992724,2cyclictest0-21swapper/220:26:592
2134299270,26cyclictest0-21swapper/220:14:592
2134299270,25cyclictest0-21swapper/220:33:592
4577091260,6ptp4l61490irq/134-eno1-TxRx-023:15:013
4577091260,6ptp4l61490irq/134-eno1-TxRx-022:49:593
4577091260,5ptp4l441ktimers/300:34:553
21343992624,1cyclictest0-21swapper/322:20:593
21343992624,1cyclictest0-21swapper/321:08:593
21343992624,1cyclictest0-21swapper/321:08:583
21342992623,2cyclictest0-21swapper/223:33:592
21342992623,2cyclictest0-21swapper/223:04:002
21342992623,2cyclictest0-21swapper/222:03:582
2134299260,1cyclictest0-21swapper/223:20:132
2134299260,1cyclictest0-21swapper/219:48:592
4577091250,5ptp4l61490irq/134-eno1-TxRx-019:44:563
4577091250,5ptp4l441ktimers/320:09:553
4577091250,4ptp4l441ktimers/323:44:553
21342992522,2cyclictest0-21swapper/222:18:582
21342992522,2cyclictest0-21swapper/221:50:132
21342992522,2cyclictest0-21swapper/219:13:592
2134299250,2cyclictest0-21swapper/222:34:552
21343992422,1cyclictest0-21swapper/323:03:593
21343992422,1cyclictest0-21swapper/319:29:563
21342992421,2cyclictest0-21swapper/222:51:582
21342992420,2cyclictest0-21swapper/220:15:592
21342992219,2cyclictest0-21swapper/222:06:592
21342991917,1cyclictest0-21swapper/200:30:002
21341991812,4cyclictest21468-21latency_hist19:10:011
21342991614,1cyclictest0-21swapper/223:13:592
21342991614,1cyclictest0-21swapper/221:27:592
21342991614,1cyclictest0-21swapper/200:14:592
21342991411,2cyclictest0-21swapper/221:14:002
21342991411,2cyclictest0-21swapper/219:35:132
2134299118,2cyclictest0-21swapper/221:30:132
213429986,1cyclictest0-21swapper/221:20:132
213429950,4cyclictest0-21swapper/219:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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