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2026-05-24 - 21:55
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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 376 highest latencies:
System rackeslot6.osadl.org (updated Sun May 24, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
140215799126115,8cyclictest1460180-21latency_hist10:10:020
140215799118107,8cyclictest1508523-21latency_hist12:40:010
14021609911199,9cyclictest1485922-21latency_hist11:30:011
14021609910899,7cyclictest1213033-21systemd-journal09:10:001
14021579910899,6cyclictest1473913-21kworker/u8:1+flush-179:011:05:170
14021579910698,5cyclictest1429640-21kworker/u8:1+flush-179:008:50:000
14021609910494,7cyclictest1494133-21latency_hist11:55:011
14021609910090,7cyclictest1419857-21latency_hist08:05:001
1402157999989,7cyclictest1418260-21latency_hist08:00:010
1402160999885,9cyclictest1213033-21systemd-journal09:55:001
1402160999284,5cyclictest1436011-21kworker/u8:0+flush-179:009:00:181
1402157999282,7cyclictest1437604-21kworker/u8:2+flush-179:009:15:220
1402160999181,7cyclictest1464963-21latency_hist10:25:001
1402157999081,6cyclictest1495726-21latency_hist12:00:010
1402157998982,5cyclictest1213033-21systemd-journal07:30:000
1402157998980,6cyclictest1448757-21kworker/u8:2+flush-179:009:35:160
1402157998978,8cyclictest1414276-21kworker/u8:1+flush-179:008:25:220
1402157998877,8cyclictest1-21systemd09:55:010
1402157998578,5cyclictest1419892-21kworker/u8:3+flush-179:008:10:260
1402160998478,4cyclictest1414276-21kworker/u8:1+events_unbound07:50:001
1402157998374,6cyclictest1445631-21kworker/u8:1+flush-179:009:30:160
140215799820,80cyclictest1484343-21turbostat11:29:550
1402160998176,4cyclictest1445631-21kworker/u8:1+flush-179:010:10:231
1402160998176,4cyclictest1445631-21kworker/u8:1+flush-179:010:10:221
1402160998175,4cyclictest1450435-21kworker/u8:3+flush-179:009:45:151
1402160998173,6cyclictest1442382-21kworker/u8:0+flush-179:009:15:001
1402157998172,7cyclictest1441066-21apt-get09:10:110
1402157998069,8cyclictest1488310-21diskstats11:35:140
1402160997969,7cyclictest1429897-21kworker/u8:3+flush-179:008:45:231
1402157997970,7cyclictest1213033-21systemd-journal09:04:590
1402157997872,5cyclictest1461218-21kworker/u8:2+events_unbound10:15:000
1402157997872,5cyclictest1461218-21kworker/u8:2+events_unbound10:15:000
1402157997871,5cyclictest1427000-21kworker/u8:2+events_unbound08:30:130
1402160997771,5cyclictest1482783-21kworker/u8:2+events_unbound11:35:001
1402160997770,5cyclictest1402020-21latency_hist07:10:011
1402160997770,5cyclictest1402020-21latency_hist07:10:011
1402157997772,4cyclictest1439259-21kworker/u8:3+flush-179:009:20:250
1402157997768,6cyclictest1490943-21kworker/u8:0+events_unbound11:50:230
1402160997671,4cyclictest1482783-21kworker/u8:2+events_unbound11:45:011
1402160997669,5cyclictest1490943-21kworker/u8:0+flush-179:011:55:211
1402160997669,5cyclictest1479534-21kworker/u8:3+flush-179:012:20:211
1402160997669,5cyclictest1405481-21kworker/u8:2+flush-179:007:25:161
1402160997568,6cyclictest1416896-21kworker/u8:0+flush-179:008:10:011
1402157997569,4cyclictest1479534-21kworker/u8:3+flush-179:012:30:160
1402157997568,5cyclictest1416896-21kworker/u8:0+events_unbound08:10:010
1402157997567,6cyclictest1464944-21kworker/u8:2+flush-179:010:30:210
1402160997367,4cyclictest1405481-21kworker/u8:2+flush-179:007:35:171
1402160997265,5cyclictest744157-21kworker/u8:1+events_unbound07:30:161
1402160997264,6cyclictest1442382-21kworker/u8:0+flush-179:009:40:021
1402157997266,4cyclictest1469694-21kworker/u8:0+flush-179:010:45:160
1402157997165,4cyclictest1479534-21kworker/u8:3+flush-179:011:45:160
1402157996962,5cyclictest1405481-21kworker/u8:2+flush-179:007:40:250
1402160996862,4cyclictest1461815-21kworker/u8:3+events_unbound10:50:251
1402160996861,5cyclictest1461815-21kworker/u8:3+flush-179:010:15:231
1402157996861,5cyclictest1429897-21kworker/u8:3+flush-179:008:44:590
1402160996761,4cyclictest1429897-21kworker/u8:3+flush-179:008:35:201
1402157996761,4cyclictest1402064-21kworker/u8:0+flush-179:007:15:200
1402157996760,5cyclictest1461815-21kworker/u8:3+flush-179:010:20:140
1402157996759,5cyclictest1445631-21kworker/u8:1+events_unbound10:40:240
1402160996660,4cyclictest1419892-21kworker/u8:3+flush-179:008:10:221
1402160996658,6cyclictest1429897-21kworker/u8:3+flush-179:008:50:261
140216099661,62cyclictest1-21systemd12:15:011
1402157996663,2cyclictest1416896-21kworker/u8:0+events_unbound08:00:240
1402157996660,5cyclictest744157-21kworker/u8:1+flush-179:007:30:240
1402157996656,7cyclictest1426226-21latency_hist08:25:010
1402160996559,4cyclictest1423266-21kworker/u8:0+flush-179:008:15:171
1402160996558,5cyclictest1427000-21kworker/u8:2+flush-179:008:40:181
1402160996557,6cyclictest1469694-21kworker/u8:0+flush-179:011:00:001
1402157996560,3cyclictest744157-21kworker/u8:1+flush-179:007:10:260
1402157996558,5cyclictest1479534-21kworker/u8:3+flush-179:012:05:160
1402157996558,5cyclictest1405481-21kworker/u8:2+flush-179:007:50:220
1402160996458,4cyclictest1490943-21kworker/u8:0+flush-179:012:04:551
1402160996360,2cyclictest0-21swapper/107:52:591
1402160996352,9cyclictest714-21Xorg08:25:591
1402157996355,5cyclictest1469694-21kworker/u8:0+flush-179:011:15:220
1402160996253,7cyclictest1505542-21apt-get12:30:111
1402157996250,9cyclictest1461815-21kworker/u8:3+flush-179:010:15:120
1402160996155,4cyclictest1445631-21kworker/u8:1+flush-179:010:25:161
1402157996155,4cyclictest1429897-21kworker/u8:3+flush-179:008:35:220
1402160996054,4cyclictest1429640-21kworker/u8:1+flush-179:008:32:181
1402157996052,6cyclictest1503935-21kworker/u8:1+flush-179:012:25:240
1402157996051,6cyclictest1479534-21kworker/u8:3+flush-179:011:10:220
1402160995954,4cyclictest1436011-21kworker/u8:0+flush-179:008:58:161
1402157995956,2cyclictest1213033-21systemd-journal12:15:010
1402157995951,6cyclictest1445852-21apt-get09:25:120
1402160995852,4cyclictest744157-21kworker/u8:1+events_unbound07:20:011
1402160995852,4cyclictest1442382-21kworker/u8:0+flush-179:009:25:211
1402160995847,9cyclictest1213033-21systemd-journal08:24:591
1402157995855,1cyclictest1424623-21latency_hist08:20:010
1402160995752,4cyclictest1464944-21kworker/u8:2+flush-179:010:30:171
1402160995752,4cyclictest1437604-21kworker/u8:2+flush-179:009:15:161
1402160995750,5cyclictest1405481-21kworker/u8:2+flush-179:007:40:261
1402157995748,5cyclictest1429897-21kworker/u8:3+flush-179:008:50:170
1402160995651,4cyclictest1497375-21kworker/u8:2+flush-179:012:05:221
1402160995651,4cyclictest1405481-21kworker/u8:2+flush-179:007:20:161
1402160995650,5cyclictest744157-21kworker/u8:1+flush-179:007:10:251
1402157995651,3cyclictest1482705-21kworker/u8:1+events_unbound11:30:170
1402157995651,3cyclictest1406866-21kworker/u8:3+flush-179:007:45:210
1402160995550,4cyclictest1469694-21kworker/u8:0+flush-179:011:14:551
1402160995549,4cyclictest1461815-21kworker/u8:3+events_unbound10:35:191
1402160995449,3cyclictest1458628-21kworker/u8:0+flush-179:010:05:151
1402157995449,3cyclictest1479534-21kworker/u8:3+flush-179:012:15:210
1402157995447,5cyclictest1405481-21kworker/u8:2+events_unbound07:35:140
1402157995348,4cyclictest1479534-21kworker/u8:3+flush-179:011:40:210
1402157995348,4cyclictest1445631-21kworker/u8:1+flush-179:010:25:200
1402157995347,5cyclictest1461815-21kworker/u8:3+flush-179:010:50:190
1402157995347,5cyclictest1450435-21kworker/u8:3+events_unbound09:40:230
1402164995249,2cyclictest0-21swapper/307:26:593
1402160995245,5cyclictest1508469-21apt-get12:37:541
1402160995241,8cyclictest1213033-21systemd-journal11:15:231
1402157995248,3cyclictest1473913-21kworker/u8:1+flush-179:010:55:160
1402160995147,3cyclictest1490943-21kworker/u8:0+events_unbound12:25:261
1402160995146,4cyclictest1469694-21kworker/u8:0+flush-179:011:05:241
1402160995145,4cyclictest1437604-21kworker/u8:2+flush-179:009:20:121
1402160995144,5cyclictest1469694-21kworker/u8:0+flush-179:010:50:011
1402157995144,4cyclictest1503699-21latency_hist12:25:010
1402160995044,4cyclictest1476089-21kworker/u8:2+events_unbound11:00:171
1402157995044,4cyclictest1454879-21kworker/u8:2+flush-179:010:00:210
4577091490,13ptp4l61490irq/134-eno1-TxRx-007:10:003
4577091490,13ptp4l61490irq/134-eno1-TxRx-007:10:003
1402157994944,4cyclictest1405481-21kworker/u8:2+events_unbound07:20:230
1402157994943,5cyclictest1490943-21kworker/u8:0+flush-179:012:00:270
1402160994843,4cyclictest1479534-21kworker/u8:3+flush-179:012:15:241
1402157994842,4cyclictest1476372-21apt-get11:00:130
1402157994743,3cyclictest1450435-21kworker/u8:3+flush-179:009:45:140
1402157994741,4cyclictest1440812-21latency_hist09:10:010
1402160994640,5cyclictest1442382-21kworker/u8:0+flush-179:009:31:171
1402160994640,4cyclictest1454879-21kworker/u8:2+events_unbound10:00:141
1402164994540,4cyclictest1494137-21turbostat11:55:003
140216499440,4cyclictest1453822-21turbostat09:50:013
140216499440,43cyclictest1481141-21turbostat11:15:003
1402162994340,2cyclictest0-21swapper/209:54:002
140216499420,40cyclictest1436043-21turbostat08:55:013
1402160994238,3cyclictest1479534-21kworker/u8:3+events_unbound11:35:241
1402160994238,3cyclictest1445631-21kworker/u8:1+flush-179:010:40:211
1402160994238,3cyclictest1416896-21kworker/u8:0+flush-179:007:55:271
1402160994237,4cyclictest1479534-21kworker/u8:3+flush-179:011:45:261
1402162994136,2cyclictest0-21swapper/211:29:552
1402160994133,6cyclictest1479534-21kworker/u8:3+flush-179:011:25:001
1402164994034,5cyclictest1416406-21turbostat07:54:593
1402157994034,5cyclictest1437636-21sh09:00:010
1402157994034,4cyclictest1461815-21kworker/u8:3+flush-179:010:35:220
1402164993934,4cyclictest1506890-21turbostat12:35:013
1402164993933,5cyclictest1450370-21turbostat09:40:003
140216499390,4cyclictest1502105-21turbostat12:20:003
1402164993833,4cyclictest1490968-21turbostat11:49:553
1402164993832,4cyclictest1447191-21turbostat09:30:003
140216499380,3cyclictest1458605-21turbostat10:05:003
140216299380,36cyclictest0-21swapper/210:57:592
1402160993826,6cyclictest1448757-21kworker/u8:2+events_unbound09:35:151
1402164993732,4cyclictest1440820-21turbostat09:09:593
140216499370,36cyclictest0-21swapper/309:35:003
1402162993735,1cyclictest0-21swapper/209:49:592
1402162993734,2cyclictest0-21swapper/210:04:592
140216299370,35cyclictest0-21swapper/212:21:592
140216299370,35cyclictest0-21swapper/207:35:592
1402160993732,4cyclictest1454879-21kworker/u8:2+flush-179:009:55:231
1402157993732,3cyclictest714-21Xorg09:57:580
1402164993634,1cyclictest0-21swapper/309:24:553
140216499360,35cyclictest0-21swapper/311:02:593
140216499360,1cyclictest0-21swapper/311:59:553
140216299360,1cyclictest0-21swapper/210:44:562
4577091350,1ptp4l431rcuc/311:10:003
1402164993534,1cyclictest0-21swapper/308:59:593
140216499350,1cyclictest0-21swapper/310:32:593
140216499350,1cyclictest0-21swapper/310:19:553
1402162993533,1cyclictest0-21swapper/209:00:012
4577091340,2ptp4l441ktimers/309:00:143
1402164993432,1cyclictest0-21swapper/312:04:593
1402164993432,1cyclictest0-21swapper/309:58:583
1402164993432,1cyclictest0-21swapper/308:14:583
140216299343,2cyclictest0-21swapper/208:25:592
1402157993429,4cyclictest1479534-21kworker/u8:3+events_unbound11:20:170
1402164993332,1cyclictest0-21swapper/309:44:583
1402164993230,1cyclictest0-21swapper/312:14:553
1402164993230,1cyclictest0-21swapper/310:50:593
1402164993230,1cyclictest0-21swapper/307:40:593
1402162993229,2cyclictest0-21swapper/210:45:582
140216299320,30cyclictest0-21swapper/211:48:592
1402164993129,1cyclictest0-21swapper/307:21:593
140216499310,1cyclictest0-21swapper/312:08:003
1402162993129,1cyclictest0-21swapper/207:35:002
1402162993128,2cyclictest0-21swapper/212:14:002
1402164993028,1cyclictest0-21swapper/310:47:593
1402164993028,1cyclictest0-21swapper/309:19:553
1402164993028,1cyclictest0-21swapper/308:39:563
1402164993028,1cyclictest0-21swapper/307:19:003
140216499300,29cyclictest0-21swapper/308:25:143
1402162993027,2cyclictest0-21swapper/209:25:132
1402162993027,2cyclictest0-21swapper/208:35:142
140216299300,29cyclictest0-21swapper/211:55:132
140216299300,28cyclictest0-21swapper/209:20:142
1402164992927,1cyclictest0-21swapper/311:40:123
1402164992927,1cyclictest0-21swapper/311:28:593
1402164992927,1cyclictest0-21swapper/310:55:133
1402164992922,5cyclictest1471347-21turbostat10:45:003
1402162992926,2cyclictest0-21swapper/211:50:132
1402162992926,2cyclictest0-21swapper/210:20:122
1402162992926,2cyclictest0-21swapper/209:05:122
140216299290,27cyclictest0-21swapper/211:40:122
140216299290,27cyclictest0-21swapper/211:35:132
140216299290,27cyclictest0-21swapper/209:30:132
140216299290,27cyclictest0-21swapper/208:40:132
140216299290,27cyclictest0-21swapper/208:30:012
140216299290,27cyclictest0-21swapper/208:05:152
140216299290,27cyclictest0-21swapper/207:55:012
1402164992826,1cyclictest0-21swapper/310:06:003
1402164992826,1cyclictest0-21swapper/309:50:133
140216499280,27cyclictest0-21swapper/312:25:153
1402162992825,2cyclictest0-21swapper/208:15:132
1402162992825,2cyclictest0-21swapper/207:55:002
140216299280,2cyclictest0-21swapper/211:22:592
140216299280,2cyclictest0-21swapper/210:37:592
140216299280,26cyclictest0-21swapper/211:10:122
140216299280,26cyclictest0-21swapper/210:11:592
140216299280,26cyclictest0-21swapper/210:11:582
140216299280,26cyclictest0-21swapper/209:40:022
140216299280,26cyclictest0-21swapper/208:51:592
4577091270,7ptp4l61490irq/134-eno1-TxRx-007:50:013
1402164992725,1cyclictest0-21swapper/310:12:583
1402164992725,1cyclictest0-21swapper/310:12:583
1402164992725,1cyclictest0-21swapper/308:30:023
1402164992725,1cyclictest0-21swapper/308:05:143
1402164992725,1cyclictest0-21swapper/307:59:593
1402164992725,1cyclictest0-21swapper/307:13:593
1402164992724,2cyclictest0-21swapper/309:14:593
140216499270,26cyclictest0-21swapper/311:32:003
1402162992724,2cyclictest0-21swapper/210:31:582
1402164992624,1cyclictest431rcuc/307:34:003
1402164992624,1cyclictest0-21swapper/311:35:123
140216299260,2cyclictest0-21swapper/211:07:592
140216299260,24cyclictest0-21swapper/212:08:592
140216299260,24cyclictest0-21swapper/212:04:592
140216299260,24cyclictest0-21swapper/211:30:032
140216299260,24cyclictest0-21swapper/207:45:132
4577091250,5ptp4l61490irq/134-eno1-TxRx-008:44:553
1402164992523,1cyclictest0-21swapper/312:36:593
140216499250,1cyclictest0-21swapper/311:15:583
1402157992520,4cyclictest0-21swapper/007:10:010
1402157992520,4cyclictest0-21swapper/007:10:010
4577091240,5ptp4l61490irq/134-eno1-TxRx-008:49:543
1402164992422,1cyclictest0-21swapper/310:22:003
1402162992421,2cyclictest0-21swapper/212:15:132
1402162992421,2cyclictest0-21swapper/209:38:002
1402162992421,2cyclictest0-21swapper/208:21:002
4577091230,3ptp4l61490irq/134-eno1-TxRx-008:19:563
4577091230,3ptp4l441ktimers/310:40:013
4577091230,3ptp4l441ktimers/310:29:553
4577091230,3ptp4l441ktimers/308:24:563
4577091230,3ptp4l441ktimers/307:39:553
4577091230,2ptp4l441ktimers/312:25:013
4577091230,2ptp4l441ktimers/308:05:003
4577091220,2ptp4l441ktimers/311:24:553
1402162992220,1cyclictest0-21swapper/212:35:592
1402162992219,2cyclictest0-21swapper/210:08:592
1402162992219,2cyclictest0-21swapper/207:29:562
1402162992118,2cyclictest0-21swapper/212:25:152
1402162992018,1cyclictest0-21swapper/208:45:592
1402162992017,2cyclictest0-21swapper/210:27:002
1402162991917,1cyclictest0-21swapper/210:18:592
1402162991917,1cyclictest0-21swapper/209:59:592
1402162991916,2cyclictest0-21swapper/209:04:002
1402162991916,2cyclictest0-21swapper/208:14:562
1402162991916,2cyclictest0-21swapper/207:42:592
1402162991915,2cyclictest0-21swapper/211:17:592
1402162991815,2cyclictest0-21swapper/207:24:542
1402162991614,1cyclictest0-21swapper/207:15:122
1402162991411,2cyclictest0-21swapper/212:32:002
1402162991410,2cyclictest0-21swapper/207:10:172
1402162991311,1cyclictest0-21swapper/210:51:592
140216299129,2cyclictest0-21swapper/211:05:022
14021629996,2cyclictest0-21swapper/209:14:542
14021629996,2cyclictest0-21swapper/208:04:552
14021629985,2cyclictest0-21swapper/209:18:062
14021629930,2cyclictest0-21swapper/207:10:012
14021629930,2cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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