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2026-07-03 - 07:51
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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 Fri Jul 03, 2026 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
396418099132125,5cyclictest4014005-21latency_hist21:45:021
396417799130124,4cyclictest4051793-21kworker/u8:0+events_unbound00:05:240
396417799128117,8cyclictest3973963-21latency_hist19:40:020
396417799127116,8cyclictest4054302-21latency_hist23:50:010
396418099120114,4cyclictest4027619-21kworker/u8:0+events_unbound22:55:251
396417799120109,8cyclictest3986952-21latency_hist20:20:010
396418099118112,4cyclictest4051793-21kworker/u8:0+flush-179:000:10:001
396418099118110,6cyclictest4023834-21kworker/u8:1+events_unbound22:20:001
396418099118108,7cyclictest4047937-21latency_hist23:30:011
396418099118103,11cyclictest4057805-21cupsd00:00:011
396417799116106,7cyclictest3969180-21latency_hist19:25:010
396418099113105,5cyclictest3965867-21kworker/u8:3+events_unbound19:25:141
39641809911296,5cyclictest3986988-21kworker/u8:2+events_unbound21:10:001
396418099112105,4cyclictest4044777-21kworker/u8:1+flush-179:023:20:231
396418099110101,6cyclictest4051793-21kworker/u8:0+events_unbound23:45:171
396417799110104,4cyclictest3986988-21kworker/u8:2+events_unbound21:05:170
396418099109100,7cyclictest3977390-21latency_hist19:50:011
396417799109104,4cyclictest3965867-21kworker/u8:3+events_unbound19:25:230
396417799109102,5cyclictest4013980-21kworker/u8:0+events_unbound22:10:130
396417799109101,7cyclictest4055867-21kworker/u8:1+flush-179:000:00:010
396418099108101,5cyclictest4038376-21kworker/u8:2+events_unbound23:15:001
396418099108101,4cyclictest3986988-21kworker/u8:2+events_unbound20:25:221
39641779910899,3cyclictest3986988-21kworker/u8:2+events_unbound22:25:140
396417799108103,4cyclictest3973913-21kworker/u8:1+events_unbound20:05:240
39641809910797,6cyclictest4028559-21kworker/u8:1+events_unbound22:40:241
396417799107102,4cyclictest3963346-21kworker/u8:0+flush-179:019:30:230
39641809910691,5cyclictest4056024-21kworker/u8:3+flush-179:000:00:241
39641779910697,7cyclictest3991701-21kworker/u8:3+flush-179:020:35:150
39641809910594,7cyclictest3963346-21kworker/u8:0+events_unbound19:20:171
39641779910499,3cyclictest4027619-21kworker/u8:0+events_unbound22:55:230
39641809910397,4cyclictest4006007-21kworker/u8:0+events_unbound21:30:151
39641809910397,4cyclictest3991701-21kworker/u8:3+events_unbound20:35:151
39641809910396,5cyclictest4006098-21kworker/u8:3+events_unbound21:20:151
39641809910386,6cyclictest4034928-21kworker/u8:1+flush-179:022:50:211
39641809910295,6cyclictest3986988-21kworker/u8:2+events_unbound22:00:001
39641809910294,5cyclictest3986988-21kworker/u8:2+events_unbound21:50:141
39641809910192,6cyclictest4013980-21kworker/u8:0+flush-179:022:05:151
39641809910192,6cyclictest4013980-21kworker/u8:0+flush-179:022:05:151
39641809910192,6cyclictest4013980-21kworker/u8:0+events_unbound21:50:011
39641779910196,4cyclictest4028559-21kworker/u8:1+events_unbound22:35:240
39641809910094,4cyclictest4065743-21kworker/u8:2+flush-179:000:25:251
39641809910085,6cyclictest4018999-21kworker/u8:3+events_unbound22:25:001
39641779910095,4cyclictest3993605-21kworker/u8:0+events_unbound20:45:220
3964180999989,7cyclictest3996728-21kworker/u8:1+events_unbound20:55:141
3964177999994,4cyclictest4028559-21kworker/u8:1+events_unbound22:40:200
3964180999876,9cyclictest4051793-21kworker/u8:0+flush-179:000:10:161
3964180999792,4cyclictest3977370-21kworker/u8:2+flush-179:019:50:241
3964177999791,4cyclictest4051793-21kworker/u8:0+events_unbound00:10:190
3964180999686,6cyclictest4065743-21kworker/u8:2+events_unbound00:35:151
3964180999591,3cyclictest4006007-21kworker/u8:0+events_unbound21:25:191
3964180999488,4cyclictest3983739-21kworker/u8:0+events_unbound20:15:221
3964180999486,6cyclictest3996728-21kworker/u8:1+flush-179:021:15:221
3964180999486,4cyclictest3986988-21kworker/u8:2+flush-179:022:00:221
3964185999385,6cyclictest3967592-21turbostat19:20:003
3964180999387,4cyclictest3969201-21kworker/u8:2+flush-179:019:35:261
3964180999287,4cyclictest4044777-21kworker/u8:1+flush-179:023:30:261
3964177999281,8cyclictest3990125-21latency_hist20:30:020
3964180999183,6cyclictest3973913-21kworker/u8:1+events_unbound19:45:001
3964180999182,7cyclictest3986988-21kworker/u8:2+flush-179:022:25:211
3964177999186,4cyclictest3977370-21kworker/u8:2+flush-179:019:50:270
3964177999184,5cyclictest4065809-21kworker/u8:3+events_unbound00:30:260
3964180999084,5cyclictest3996728-21kworker/u8:1+events_unbound20:50:231
3964180999076,4cyclictest3963346-21kworker/u8:0+flush-179:019:35:011
3964177999083,5cyclictest4051793-21kworker/u8:0+flush-179:023:45:000
3964180998982,5cyclictest3973913-21kworker/u8:1+flush-179:020:00:161
3964177998985,3cyclictest4006007-21kworker/u8:0+events_unbound21:30:290
3964177998979,8cyclictest4055897-21apt-get23:55:000
3964180998879,7cyclictest4038377-21/usr/sbin/munin23:00:231
3964177998883,4cyclictest3983739-21kworker/u8:0+events_unbound20:20:210
3964177998880,3cyclictest4065743-21kworker/u8:2+events_unbound00:35:270
3964180998782,3cyclictest4027619-21kworker/u8:0+flush-179:022:35:141
3964180998780,4cyclictest4064131-21kworker/u8:1+flush-179:000:30:221
3964180998772,5cyclictest3958029-21kworker/u8:1+flush-179:019:10:161
3964177998782,4cyclictest4058012-21kworker/u8:2+events_unbound00:00:140
3964177998782,4cyclictest3973913-21kworker/u8:1+events_unbound19:56:440
3964177998782,3cyclictest4028559-21kworker/u8:1+events_unbound22:30:220
3964180998680,4cyclictest4013980-21kworker/u8:0+flush-179:022:10:191
3964180998680,4cyclictest3986988-21kworker/u8:2+events_unbound21:35:251
3964177998682,3cyclictest4064131-21kworker/u8:1+events_unbound00:20:260
3964177998681,3cyclictest4027619-21kworker/u8:0+events_unbound22:45:140
3964177998679,5cyclictest4019298-21apt-get22:00:110
3964180998578,5cyclictest3983739-21kworker/u8:0+flush-179:020:10:241
3964177998577,5cyclictest3982173-21latency_hist20:05:020
3964180998478,4cyclictest3963346-21kworker/u8:0+flush-179:019:19:561
3964177998479,4cyclictest4013980-21kworker/u8:0+events_unbound21:55:240
3964180998374,7cyclictest3985600-21kworker/u8:1+events_unbound20:30:211
3964180998374,6cyclictest3986988-21kworker/u8:2+events_unbound20:40:191
3964177998378,4cyclictest3973913-21kworker/u8:1+flush-179:019:45:250
3964177998373,8cyclictest4007894-21apt-get21:25:110
3964180998174,5cyclictest3986988-21kworker/u8:2+flush-179:021:00:141
3964180998173,6cyclictest4027619-21kworker/u8:0+flush-179:022:45:271
3964177998075,4cyclictest4044777-21kworker/u8:1+flush-179:023:21:500
3964180997973,4cyclictest4027619-21kworker/u8:0+flush-179:022:30:211
3964177997975,3cyclictest4038376-21kworker/u8:2+events_unbound23:05:230
3964177997975,3cyclictest3958029-21kworker/u8:1+events_unbound19:10:200
3964177997974,4cyclictest3996728-21kworker/u8:1+flush-179:020:50:270
3964177997969,8cyclictest3999940-21apt-get21:00:120
3964180997873,3cyclictest3993605-21kworker/u8:0+flush-179:020:45:191
3964177997873,4cyclictest4006007-21kworker/u8:0+events_unbound21:21:470
3964180997771,4cyclictest4051793-21kworker/u8:0+events_unbound00:15:231
3964177997772,4cyclictest3986988-21kworker/u8:2+events_unbound21:19:460
3964180997671,4cyclictest4064131-21kworker/u8:1+flush-179:000:24:561
3964180997670,4cyclictest4027619-21kworker/u8:0+events_unbound23:15:141
3964180997668,6cyclictest3986988-21kworker/u8:2+events_unbound21:10:141
3964177997671,3cyclictest4013980-21kworker/u8:0+events_unbound22:05:220
3964177997671,3cyclictest4013980-21kworker/u8:0+events_unbound22:05:210
3964180997568,5cyclictest3973913-21kworker/u8:1+flush-179:020:05:251
3964177997569,5cyclictest3996728-21kworker/u8:1+events_unbound21:10:210
3964177997565,4cyclictest3986988-21kworker/u8:2+events_unbound21:48:450
3964177997469,4cyclictest4027619-21kworker/u8:0+events_unbound23:15:510
3964177997369,3cyclictest4027619-21kworker/u8:0+events_unbound23:04:490
3964177997369,3cyclictest3991176-21kworker/u8:0+events_unbound20:30:260
3964177997368,4cyclictest3963346-21kworker/u8:0+events_unbound19:16:450
3964177997366,6cyclictest4051793-21kworker/u8:0+flush-179:000:20:000
3964177997268,3cyclictest4043139-21kworker/u8:3+flush-179:023:34:550
3964177997268,3cyclictest4027619-21kworker/u8:0+events_unbound22:53:470
3964177997167,3cyclictest3986988-21kworker/u8:2+events_unbound22:17:480
3964177997166,4cyclictest4064131-21kworker/u8:1+events_unbound00:27:500
3964180997065,4cyclictest4044777-21kworker/u8:1+flush-179:023:44:561
3964177997066,3cyclictest3986988-21kworker/u8:2+events_unbound22:23:460
3964177997064,5cyclictest3980543-21kworker/u8:3+flush-179:020:14:560
3964177997064,4cyclictest3986988-21kworker/u8:2+flush-179:021:50:160
3964177996965,3cyclictest3996728-21kworker/u8:1+events_unbound20:55:150
3964177996964,4cyclictest4044777-21kworker/u8:1+events_unbound23:37:510
3964177996957,9cyclictest3975562-21apt-get19:45:000
3964180996863,4cyclictest3985600-21kworker/u8:1+flush-179:020:24:561
3964177996863,4cyclictest4006098-21kworker/u8:3+events_unbound21:39:460
3964181996736,2cyclictest0-21swapper/219:27:592
3964177996762,4cyclictest3986988-21kworker/u8:2+events_unbound21:44:550
3964177996561,3cyclictest4027619-21kworker/u8:0+events_unbound23:13:520
3964180996354,7cyclictest4041329-21apt-get23:10:001
3964181996259,2cyclictest0-21swapper/221:40:592
3964180996257,4cyclictest3973913-21kworker/u8:1+flush-179:019:55:141
3964180996257,3cyclictest4044777-21kworker/u8:1+flush-179:023:35:161
3964180996256,4cyclictest4053750-21kworker/u8:2+flush-179:023:50:211
3964177995949,7cyclictest510-21rs:main0
3964185995654,1cyclictest0-21swapper/300:37:593
3964181995653,2cyclictest0-21swapper/200:17:592
3964185995048,1cyclictest0-21swapper/321:40:583
3964177994945,3cyclictest3993605-21kworker/u8:0+events_unbound20:41:460
4577091470,12ptp4l61490irq/134-eno1-TxRx-019:09:553
3964185994745,1cyclictest0-21swapper/320:01:003
3964185994642,2cyclictest0-21swapper/300:17:593
3964185994135,4cyclictest0-21swapper/322:52:003
396418599400,32cyclictest3973972-21turbostat19:44:563
3964185993932,5cyclictest4062579-21turbostat00:15:003
396418599390,38cyclictest4059403-21turbostat00:05:003
396418599390,38cyclictest4025414-21turbostat22:20:013
396418199390,35cyclictest0-21swapper/219:14:552
3964181993835,2cyclictest0-21swapper/223:07:592
396418199380,36cyclictest0-21swapper/222:43:002
396418199380,36cyclictest0-21swapper/219:22:592
3964185993731,5cyclictest4010821-21turbostat21:35:013
3964181993734,2cyclictest0-21swapper/223:44:552
3964181993734,2cyclictest0-21swapper/223:33:592
3964181993734,2cyclictest0-21swapper/220:40:582
396418199370,34cyclictest0-21swapper/220:50:592
3964185993634,1cyclictest0-21swapper/320:43:003
396418599360,35cyclictest0-21swapper/323:54:553
396418599360,35cyclictest0-21swapper/322:41:593
396418599360,35cyclictest0-21swapper/321:26:583
396418599360,35cyclictest0-21swapper/321:12:593
396418599360,1cyclictest0-21swapper/323:59:593
3964181993633,2cyclictest0-21swapper/220:09:562
3964185993533,1cyclictest0-21swapper/321:49:593
396418599350,1cyclictest0-21swapper/323:49:553
3964181993532,2cyclictest0-21swapper/222:09:562
3964181993532,2cyclictest0-21swapper/222:09:552
396418199350,1cyclictest0-21swapper/219:45:002
3964185993432,1cyclictest0-21swapper/320:09:583
3964185993431,2cyclictest0-21swapper/300:32:593
3964181993431,2cyclictest0-21swapper/221:22:592
3964181993431,1cyclictest0-21swapper/220:14:592
3964185993331,1cyclictest0-21swapper/322:00:593
3964181993330,2cyclictest0-21swapper/223:48:592
3964181993329,2cyclictest0-21swapper/200:11:592
3964185993230,1cyclictest0-21swapper/321:18:003
3964185993227,4cyclictest3964116-21turbostat19:14:553
3964181993229,2cyclictest0-21swapper/223:15:592
3964181993229,2cyclictest0-21swapper/219:36:582
3964185993129,1cyclictest0-21swapper/300:20:593
3964181993127,2cyclictest0-21swapper/219:31:592
3964185993029,1cyclictest0-21swapper/319:22:593
3964185993027,2cyclictest0-21swapper/323:30:133
3964185993027,2cyclictest0-21swapper/319:30:003
396418599300,29cyclictest0-21swapper/323:40:123
396418599300,28cyclictest0-21swapper/319:35:133
3964181993027,2cyclictest0-21swapper/223:57:592
3964181993027,2cyclictest0-21swapper/223:24:552
3964181993027,2cyclictest0-21swapper/222:39:582
3964181993027,2cyclictest0-21swapper/222:31:592
396418199300,2cyclictest0-21swapper/221:45:032
4577091290,7ptp4l441ktimers/323:20:013
4577091290,5ptp4l441ktimers/300:29:593
3964185992927,1cyclictest0-21swapper/323:10:113
3964185992927,1cyclictest0-21swapper/320:50:583
3964185992927,1cyclictest0-21swapper/319:45:023
396418599290,28cyclictest0-21swapper/320:25:113
396418599290,27cyclictest0-21swapper/323:00:183
396418599290,27cyclictest0-21swapper/321:55:133
3964181992926,2cyclictest0-21swapper/223:00:182
3964181992926,2cyclictest0-21swapper/220:25:112
3964181992926,2cyclictest0-21swapper/220:20:142
3964181992926,2cyclictest0-21swapper/200:01:592
3964181992925,2cyclictest0-21swapper/223:36:592
3964181992925,2cyclictest0-21swapper/219:15:022
3964181992925,2cyclictest0-21swapper/200:08:592
396418199290,27cyclictest0-21swapper/223:10:042
396418199290,27cyclictest0-21swapper/222:25:122
396418199290,27cyclictest0-21swapper/220:30:142
396418199290,27cyclictest0-21swapper/219:45:032
396418199290,1cyclictest0-21swapper/200:20:132
4577091280,7ptp4l441ktimers/320:50:013
4577091280,6ptp4l441ktimers/321:10:003
4577091280,6ptp4l441ktimers/321:00:003
3964185992826,1cyclictest0-21swapper/322:05:123
3964185992826,1cyclictest0-21swapper/322:05:113
3964185992826,1cyclictest0-21swapper/320:20:133
3964185992825,2cyclictest0-21swapper/323:09:003
396418599280,27cyclictest0-21swapper/322:25:123
396418599280,27cyclictest0-21swapper/321:50:133
3964181992825,2cyclictest0-21swapper/222:50:132
3964181992825,2cyclictest0-21swapper/221:36:592
3964181992825,2cyclictest0-21swapper/221:00:132
396418199280,26cyclictest0-21swapper/222:48:592
396418199280,26cyclictest0-21swapper/221:50:122
396418199280,26cyclictest0-21swapper/200:25:172
4577091270,6ptp4l61490irq/134-eno1-TxRx-022:40:013
4577091270,6ptp4l441ktimers/321:05:013
3964185992726,1cyclictest0-21swapper/320:15:003
3964185992725,1cyclictest0-21swapper/322:30:593
3964185992725,1cyclictest0-21swapper/321:21:593
3964181992725,1cyclictest0-21swapper/220:55:122
3964181992724,2cyclictest0-21swapper/221:29:002
396418199270,25cyclictest0-21swapper/223:51:592
396418199270,25cyclictest0-21swapper/221:57:002
396418199270,24cyclictest0-21swapper/222:25:012
396418199270,24cyclictest0-21swapper/221:16:592
3964177992722,3cyclictest3964227-21latency_hist19:10:020
4577091260,6ptp4l61490irq/134-eno1-TxRx-022:15:003
4577091260,6ptp4l441ktimers/323:29:553
4577091260,6ptp4l441ktimers/322:25:003
4577091260,6ptp4l441ktimers/319:59:563
4577091260,5ptp4l441ktimers/323:39:553
396418599260,1cyclictest0-21swapper/300:05:593
3964181992623,2cyclictest0-21swapper/222:57:002
396418199260,2cyclictest0-21swapper/222:11:592
4577091250,5ptp4l61490irq/134-eno1-TxRx-022:59:553
4577091250,5ptp4l61490irq/134-eno1-TxRx-020:39:543
4577091250,4ptp4l61490irq/134-eno1-TxRx-020:34:563
3964185992522,2cyclictest0-21swapper/322:48:593
396418599250,1cyclictest0-21swapper/320:18:593
3964181992523,1cyclictest0-21swapper/220:20:002
3964181992522,2cyclictest0-21swapper/223:28:592
3964181992522,2cyclictest0-21swapper/222:17:592
3964181992522,2cyclictest0-21swapper/221:33:592
3964181992522,2cyclictest0-21swapper/221:08:592
3964181992522,2cyclictest0-21swapper/219:54:542
4577091240,5ptp4l61490irq/134-eno1-TxRx-019:34:553
4577091240,5ptp4l441ktimers/323:24:563
4577091240,4ptp4l441ktimers/321:39:563
3964181992421,2cyclictest0-21swapper/200:34:582
396418199240,1cyclictest0-21swapper/220:39:592
3964181992320,2cyclictest0-21swapper/222:04:552
3964181992320,2cyclictest0-21swapper/220:49:002
3964181992320,2cyclictest0-21swapper/219:59:552
3964181992118,2cyclictest0-21swapper/220:02:592
396418099191,17cyclictest3964096-21latency_hist19:10:021
3964181991512,2cyclictest0-21swapper/221:10:122
4577091130,3ptp4l441ktimers/319:50:013
396418199107,2cyclictest0-21swapper/200:35:592
39641819930,2cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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