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2026-07-27 - 01:28
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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 highest latencies:
System rackeslot6.osadl.org (updated Sun Jul 26, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
51126899137125,10cyclictest602097-21apt-get11:50:001
51126899132121,8cyclictest522756-21latency_hist07:45:011
51126399130122,6cyclictest552155-21kworker/u8:0+flush-179:009:25:010
51126399129123,4cyclictest555861-21kworker/u8:2+events_unbound09:30:000
51126399128123,3cyclictest597339-21kworker/u8:3+flush-179:011:40:270
51126899126114,8cyclictest532811-21latency_hist08:15:011
51126899125108,13cyclictest1213033-21systemd-journal11:20:001
51126899125107,15cyclictest562026-21kworker/u8:2+flush-179:010:00:261
51126899124116,6cyclictest534408-21apt-get08:20:031
51126399124116,6cyclictest495195-21kworker/u8:2+flush-179:007:25:150
51126399123117,4cyclictest568391-21kworker/u8:1+flush-179:010:15:250
51126399122112,7cyclictest603927-21latency_hist11:55:010
51126399121114,5cyclictest588555-21kworker/u8:0+flush-179:011:20:250
51126399121114,4cyclictest529417-21kworker/u8:3+events_unbound08:25:250
51126399121112,7cyclictest1213033-21systemd-journal09:10:010
51126399119113,5cyclictest552155-21kworker/u8:0+flush-179:009:45:240
51126399118110,6cyclictest529417-21kworker/u8:3+flush-179:008:35:000
51126899117106,8cyclictest1213033-21systemd-journal07:15:011
51126399117112,4cyclictest588555-21kworker/u8:0+flush-179:011:15:260
51126399117112,4cyclictest552155-21kworker/u8:0+events_unbound09:35:020
51126399117107,7cyclictest562026-21kworker/u8:2+events_unbound10:10:140
51126399117103,5cyclictest582332-21kworker/u8:1+events_unbound10:50:010
51126399115108,5cyclictest573157-21kworker/u8:2+flush-179:010:20:250
51126899114101,9cyclictest552155-21kworker/u8:0+flush-179:009:40:231
51126899112100,8cyclictest595695-21kworker/u8:1+flush-179:011:40:171
5112639911299,10cyclictest1213033-21systemd-journal12:30:000
51126399112106,4cyclictest529417-21kworker/u8:3+events_unbound08:20:240
51126399112102,8cyclictest552155-21kworker/u8:0+flush-179:010:40:000
51126399112102,7cyclictest615060-21kworker/u8:2+flush-179:012:30:200
51126399112102,7cyclictest553808-21http09:20:010
51126399112101,4cyclictest529417-21kworker/u8:3+events_unbound08:54:590
5112689911199,10cyclictest544470-21apt-get08:50:121
51126899110101,6cyclictest521159-21latency_hist07:40:021
5112689910883,22cyclictest611886-21latency_hist12:20:011
5112639910895,10cyclictest1213033-21systemd-journal12:25:010
51126399108100,6cyclictest588555-21kworker/u8:0+flush-179:011:10:000
5112639910798,6cyclictest516365-21latency_hist07:25:010
5112689910697,6cyclictest582332-21kworker/u8:1+flush-179:010:50:231
5112639910693,3cyclictest516899-21kworker/u8:0+events_unbound07:55:250
51126399106101,4cyclictest529414-21kworker/u8:1+events_unbound08:40:240
5112689910594,9cyclictest513425-21apt-get07:15:111
5112639910598,5cyclictest573157-21kworker/u8:2+events_unbound10:30:150
5112639910598,4cyclictest516899-21kworker/u8:0+flush-179:008:00:210
5112639910594,8cyclictest519539-21latency_hist07:35:010
5112639910593,10cyclictest1213033-21systemd-journal11:35:000
51126399105100,3cyclictest529414-21kworker/u8:1+events_unbound08:05:250
5112689910495,6cyclictest590809-21store11:15:011
5112639910498,4cyclictest529417-21kworker/u8:3+events_unbound09:00:250
5112639910495,6cyclictest600479-21kworker/u8:2+flush-179:012:05:200
5112639910395,5cyclictest602227-21kworker/u8:0+flush-179:012:10:200
5112689910265,23cyclictest524579-21/usr/sbin/munin07:50:161
5112639910294,6cyclictest495195-21kworker/u8:2+events_unbound07:15:150
5112639910280,6cyclictest579591-21kworker/u8:3+events_unbound11:00:150
511268999990,6cyclictest529414-21kworker/u8:1+flush-179:008:30:241
511263999994,4cyclictest516899-21kworker/u8:0+flush-179:007:50:250
511263999994,3cyclictest540314-21kworker/u8:0+flush-179:008:35:250
511263999992,6cyclictest602227-21kworker/u8:0+events_unbound11:55:150
511268999885,11cyclictest617201-21diskstats12:35:171
511263999889,7cyclictest613466-21kworker/u8:1+flush-179:012:35:200
511263999789,5cyclictest516899-21kworker/u8:0+events_unbound07:40:210
511263999691,3cyclictest552155-21kworker/u8:0+flush-179:010:00:220
511263999691,3cyclictest552155-21kworker/u8:0+events_unbound10:40:210
511263999689,5cyclictest315295-21kworker/u8:5+events_unbound07:10:180
511263999684,7cyclictest555861-21kworker/u8:2+flush-179:009:35:200
511263999488,4cyclictest597339-21kworker/u8:3+flush-179:011:45:220
511263999488,4cyclictest588555-21kworker/u8:0+flush-179:011:10:260
511263999487,6cyclictest588555-21kworker/u8:0+flush-179:011:35:270
511263999487,6cyclictest588555-21kworker/u8:0+flush-179:011:35:270
511268999383,8cyclictest575028-21apt-get10:25:161
511268999285,4cyclictest562026-21kworker/u8:2+flush-179:010:05:241
511268999080,7cyclictest600479-21kworker/u8:2+flush-179:012:00:231
511263999083,5cyclictest529414-21kworker/u8:1+flush-179:008:15:260
511263999083,5cyclictest529414-21kworker/u8:1+flush-179:008:15:260
511263999083,5cyclictest495195-21kworker/u8:2+flush-179:007:35:200
511268998881,4cyclictest588555-21kworker/u8:0+events_unbound11:20:251
511268998879,6cyclictest552155-21kworker/u8:0+flush-179:010:35:261
511263998881,5cyclictest600479-21kworker/u8:2+flush-179:012:15:280
511263998881,5cyclictest550568-21kworker/u8:2+flush-179:009:10:250
511268998778,7cyclictest539692-21apt-get08:35:111
511268998764,21cyclictest549250-21apt-get09:05:091
511263998781,4cyclictest552155-21kworker/u8:0+events_unbound09:55:140
511268998680,4cyclictest495195-21kworker/u8:2+flush-179:007:45:221
511268998673,10cyclictest511038-21latency_hist07:10:021
511263998677,6cyclictest573157-21kworker/u8:2+events_unbound10:25:200
511268998580,3cyclictest573157-21kworker/u8:2+flush-179:010:20:171
511268998575,6cyclictest602227-21kworker/u8:0+flush-179:012:10:221
511263998573,4cyclictest562026-21kworker/u8:2+events_unbound09:50:250
511268998477,4cyclictest552155-21kworker/u8:0+flush-179:010:55:181
511268998377,4cyclictest597304-21latency_hist11:35:011
511268998274,5cyclictest552155-21kworker/u8:0+flush-179:010:45:091
511263998277,4cyclictest529417-21kworker/u8:3+flush-179:008:55:300
511268998074,4cyclictest600479-21kworker/u8:2+flush-179:011:50:191
511268998071,7cyclictest568391-21kworker/u8:1+flush-179:010:15:221
511268998068,9cyclictest529417-21kworker/u8:3+events_unbound08:55:271
511263998075,4cyclictest529414-21kworker/u8:1+events_unbound08:45:220
511263998075,4cyclictest529414-21kworker/u8:1+events_unbound08:45:220
511268997973,4cyclictest602227-21kworker/u8:0+flush-179:012:05:261
511263997974,3cyclictest562026-21kworker/u8:2+flush-179:010:05:280
511273997871,5cyclictest549003-21turbostat09:05:003
511268997771,4cyclictest495195-21kworker/u8:2+flush-179:007:35:011
511268997561,11cyclictest1213033-21systemd-journal10:00:001
511263997568,5cyclictest600479-21kworker/u8:2+flush-179:012:00:160
511268997466,5cyclictest516899-21kworker/u8:0+flush-179:007:55:181
511268997367,4cyclictest516899-21kworker/u8:0+events_unbound08:00:161
511268997361,9cyclictest593590-21kworker/u8:2+flush-179:011:25:221
511268997266,4cyclictest495195-21kworker/u8:2+flush-179:007:25:191
511268997264,5cyclictest552155-21kworker/u8:0+flush-179:010:40:171
511263997266,4cyclictest552155-21kworker/u8:0+flush-179:010:55:220
511263997160,6cyclictest584310-21latency_hist10:55:000
511268997059,9cyclictest529417-21kworker/u8:3+flush-179:008:25:151
511268996963,4cyclictest562026-21kworker/u8:2+events_unbound09:50:201
51127399670,65cyclictest0-21swapper/311:14:003
511268996762,4cyclictest615060-21kworker/u8:2+flush-179:012:30:201
511268996760,5cyclictest552155-21kworker/u8:0+events_unbound09:45:171
51127099660,2cyclictest0-21swapper/211:13:592
511268996559,4cyclictest562026-21kworker/u8:2+flush-179:010:10:211
511268996458,4cyclictest588555-21kworker/u8:0+flush-179:011:35:181
511268996458,4cyclictest588555-21kworker/u8:0+flush-179:011:35:171
511268996358,3cyclictest585668-21kworker/u8:2+flush-179:011:05:211
511268996356,5cyclictest529414-21kworker/u8:1+flush-179:008:15:141
511268996356,5cyclictest529414-21kworker/u8:1+flush-179:008:15:141
511268996354,7cyclictest553914-21store09:20:011
511263996359,3cyclictest495195-21kworker/u8:2+events_unbound07:45:230
511268996257,3cyclictest555861-21kworker/u8:2+events_unbound09:25:191
511268996253,7cyclictest557464-21apt-get09:30:141
511273996154,5cyclictest524363-21turbostat07:50:003
511263996154,5cyclictest593590-21kworker/u8:2+flush-179:011:25:120
511268996055,4cyclictest600479-21kworker/u8:2+events_unbound12:20:141
511268996052,5cyclictest613466-21kworker/u8:1+flush-179:012:25:221
511268995952,5cyclictest495195-21kworker/u8:2+flush-179:007:20:251
511263995954,4cyclictest516899-21kworker/u8:0+events_unbound08:10:220
511268995852,4cyclictest552155-21kworker/u8:0+flush-179:009:35:211
511268995847,9cyclictest1213033-21systemd-journal08:10:001
511268995752,4cyclictest529414-21kworker/u8:1+events_unbound08:40:191
511270995551,2cyclictest0-21swapper/210:20:592
511273995349,2cyclictest0-21swapper/310:21:003
511268995247,4cyclictest602227-21kworker/u8:0+flush-179:011:55:221
511268995246,4cyclictest529417-21kworker/u8:3+events_unbound09:00:191
511268994943,4cyclictest573157-21kworker/u8:2+flush-179:010:30:221
511263994939,7cyclictest552155-21kworker/u8:0+flush-179:009:40:240
4577091490,13ptp4l61490irq/134-eno1-TxRx-007:10:003
511273994846,1cyclictest0-21swapper/307:13:593
511268994639,4cyclictest0-21swapper/109:20:011
511268994630,5cyclictest550568-21kworker/u8:2+flush-179:009:10:261
511270994541,2cyclictest0-21swapper/210:42:592
511273994240,1cyclictest0-21swapper/310:43:003
511268994236,4cyclictest529417-21kworker/u8:3+flush-179:008:48:271
511268994236,4cyclictest529417-21kworker/u8:3+flush-179:008:48:261
511268994235,5cyclictest579591-21kworker/u8:3+flush-179:011:00:201
511273994038,1cyclictest0-21swapper/312:18:593
51127099390,36cyclictest0-21swapper/207:32:592
511270993835,2cyclictest0-21swapper/209:33:582
511270993833,2cyclictest0-21swapper/210:51:592
51127099380,35cyclictest0-21swapper/211:09:552
511273993735,1cyclictest0-21swapper/311:43:003
51127399370,29cyclictest0-21swapper/310:15:583
511270993734,2cyclictest0-21swapper/210:03:582
511270993734,2cyclictest0-21swapper/209:57:002
511270993733,2cyclictest0-21swapper/208:18:592
511270993733,2cyclictest0-21swapper/208:18:592
511273993634,1cyclictest0-21swapper/310:03:583
511273993634,1cyclictest0-21swapper/309:33:593
511273993634,1cyclictest0-21swapper/309:27:593
511270993632,2cyclictest0-21swapper/209:17:582
51127099360,2cyclictest0-21swapper/210:15:592
511273993532,2cyclictest0-21swapper/310:51:593
511270993532,2cyclictest0-21swapper/208:05:592
511273993432,1cyclictest0-21swapper/309:56:593
511273993431,2cyclictest0-21swapper/308:05:593
511270993430,2cyclictest0-21swapper/209:24:002
511270993430,2cyclictest0-21swapper/207:44:562
511273993331,1cyclictest0-21swapper/309:17:593
511273993331,1cyclictest0-21swapper/308:18:593
511273993331,1cyclictest0-21swapper/308:18:593
51127399330,1cyclictest0-21swapper/310:25:193
51127099330,2cyclictest0-21swapper/210:25:182
51127399320,29cyclictest0-21swapper/312:34:553
51127399320,28cyclictest0-21swapper/307:15:033
51127399320,21cyclictest0-21swapper/308:40:123
51127399320,1cyclictest0-21swapper/312:38:593
511270993229,2cyclictest0-21swapper/210:34:552
51127099320,29cyclictest0-21swapper/210:10:132
511273993129,1cyclictest0-21swapper/307:44:563
511273993128,2cyclictest0-21swapper/309:24:003
51127399310,28cyclictest0-21swapper/312:24:593
51127399310,28cyclictest0-21swapper/307:50:133
51127399310,27cyclictest0-21swapper/310:10:133
51127399310,26cyclictest0-21swapper/312:10:133
51127399310,26cyclictest0-21swapper/311:15:013
511270993127,2cyclictest0-21swapper/208:00:582
511270993127,2cyclictest0-21swapper/207:20:142
51127099310,2cyclictest0-21swapper/212:34:552
51127099310,2cyclictest0-21swapper/212:10:132
51127099310,2cyclictest0-21swapper/211:50:032
51127099310,2cyclictest0-21swapper/210:06:592
51127099310,29cyclictest0-21swapper/207:15:042
51127099310,28cyclictest0-21swapper/209:00:132
51127099310,27cyclictest0-21swapper/212:24:592
51127099310,26cyclictest0-21swapper/209:40:152
511273993028,1cyclictest0-21swapper/310:34:543
511273993026,2cyclictest0-21swapper/308:00:593
51127399300,2cyclictest0-21swapper/311:50:033
51127399300,28cyclictest0-21swapper/309:10:173
51127399300,27cyclictest0-21swapper/310:07:003
51127399300,27cyclictest0-21swapper/308:20:023
511270993026,2cyclictest0-21swapper/212:06:592
511270993026,2cyclictest0-21swapper/211:33:582
51127099300,2cyclictest0-21swapper/207:50:132
51127099300,28cyclictest0-21swapper/209:10:182
51127099300,28cyclictest0-21swapper/208:52:002
51127099300,27cyclictest0-21swapper/208:20:022
4577091300,6ptp4l441ktimers/309:10:013
511273992926,2cyclictest0-21swapper/307:20:143
51127399290,26cyclictest0-21swapper/309:35:143
511270992925,2cyclictest0-21swapper/207:45:582
51127099290,2cyclictest0-21swapper/211:15:012
51127099290,27cyclictest0-21swapper/208:40:132
51127099290,26cyclictest0-21swapper/212:35:142
51127099290,26cyclictest0-21swapper/209:35:142
51127099290,24cyclictest0-21swapper/211:37:592
51127099290,24cyclictest0-21swapper/211:37:592
4577091290,6ptp4l441ktimers/311:30:003
4577091290,6ptp4l441ktimers/308:54:593
4577091290,6ptp4l441ktimers/308:50:013
4577091290,6ptp4l441ktimers/308:50:013
4577091290,5ptp4l441ktimers/310:39:553
511273992826,1cyclictest0-21swapper/311:33:583
511273992825,2cyclictest0-21swapper/312:06:593
511273992825,2cyclictest0-21swapper/310:45:583
511270992825,2cyclictest0-21swapper/211:58:592
511270992824,3cyclictest0-21swapper/208:10:012
511270992823,2cyclictest0-21swapper/209:51:592
51127099280,2cyclictest0-21swapper/211:20:592
51127099280,2cyclictest0-21swapper/209:10:002
51127099280,26cyclictest0-21swapper/207:37:592
4577091280,7ptp4l61490irq/134-eno1-TxRx-012:30:003
4577091280,6ptp4l61490irq/134-eno1-TxRx-011:25:003
4577091280,6ptp4l61490irq/134-eno1-TxRx-007:30:013
4577091280,6ptp4l441ktimers/311:05:013
4577091280,5ptp4l441ktimers/307:35:013
511273992725,1cyclictest0-21swapper/309:40:143
511273992725,1cyclictest0-21swapper/308:10:013
51127399270,2cyclictest587512-21turbostat11:05:003
51127399270,25cyclictest0-21swapper/311:37:593
51127399270,25cyclictest0-21swapper/311:37:593
511270992724,2cyclictest0-21swapper/210:55:142
511270992723,2cyclictest0-21swapper/207:28:592
4577091270,6ptp4l61490irq/134-eno1-TxRx-012:05:003
4577091270,6ptp4l61490irq/134-eno1-TxRx-009:55:013
4577091270,6ptp4l61490irq/134-eno1-TxRx-008:40:013
4577091270,6ptp4l441ktimers/307:40:013
4577091270,5ptp4l441ktimers/311:59:553
511273992625,1cyclictest0-21swapper/310:56:003
511270992623,2cyclictest0-21swapper/209:46:582
511270992623,2cyclictest0-21swapper/208:48:592
511270992623,2cyclictest0-21swapper/208:48:582
511270992622,2cyclictest0-21swapper/210:45:592
4577091260,5ptp4l61490irq/134-eno1-TxRx-011:49:553
4577091260,4ptp4l441ktimers/308:00:003
511273992522,2cyclictest0-21swapper/309:46:583
4577091250,4ptp4l61490irq/134-eno1-TxRx-009:00:013
4577091250,4ptp4l441ktimers/308:29:553
511270992421,2cyclictest0-21swapper/211:00:152
511270992421,2cyclictest0-21swapper/210:35:142
511270992421,2cyclictest0-21swapper/208:29:592
4577091240,5ptp4l441ktimers/308:34:553
511270992318,2cyclictest0-21swapper/211:28:592
511270992219,2cyclictest0-21swapper/212:00:142
511270992219,2cyclictest0-21swapper/211:43:592
511270992219,2cyclictest0-21swapper/208:36:592
511270992218,2cyclictest0-21swapper/207:11:592
511270992118,2cyclictest0-21swapper/208:30:582
511270992118,1cyclictest0-21swapper/212:25:592
51126399211,15cyclictest511267-21apt-key07:10:020
511270991815,2cyclictest0-21swapper/211:45:142
511270991714,2cyclictest0-21swapper/208:57:582
511270991512,2cyclictest0-21swapper/209:27:002
51127099140,12cyclictest0-21swapper/212:17:222
511270991310,2cyclictest0-21swapper/207:55:592
5112709941,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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