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2026-06-13 - 18:40
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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 Sat Jun 13, 2026 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
151527699121115,4cyclictest1524832-21true07:40:000
151527699121111,7cyclictest1619164-21latency_hist12:30:000
151527799113104,6cyclictest1537784-21latency_hist08:20:021
15152769910497,5cyclictest1546243-21kworker/u8:0+flush-179:008:55:240
15152769910394,7cyclictest1519930-21latency_hist07:25:020
15152779910090,7cyclictest1213033-21systemd-journal10:50:001
15152769910093,5cyclictest1578595-21kworker/u8:1+flush-179:010:25:000
15152769910091,6cyclictest1596414-21kworker/u8:3+flush-179:011:30:200
1515277999890,6cyclictest1531178-21apt-get08:00:001
1515277999889,6cyclictest1534830-21/usr/sbin/munin08:10:231
1515277999888,7cyclictest1601398-21latency_hist11:35:011
1515277999888,7cyclictest1583377-21latency_hist10:40:021
1515277999887,8cyclictest1213033-21systemd-journal10:20:011
1515276999892,4cyclictest1529592-21kworker/u8:3+flush-179:008:00:000
1515276999890,6cyclictest1529592-21kworker/u8:3+flush-179:008:40:180
1515276999382,9cyclictest1555804-21apt-get09:14:590
1515277999283,7cyclictest1526639-21apt-get07:45:121
1515276999284,6cyclictest1572216-21kworker/u8:0+flush-179:010:10:210
1515276999084,4cyclictest1508865-21kworker/u8:3+flush-179:007:10:240
1515276999080,8cyclictest1544420-21latency_hist08:40:020
1515276999080,8cyclictest1544420-21latency_hist08:40:010
1515276998980,6cyclictest1603341-21kworker/u8:1+flush-179:011:45:170
1515276998978,8cyclictest1213033-21systemd-journal10:00:010
1515277998878,8cyclictest1515177-21kworker/u8:0+flush-179:007:15:001
1515277998878,7cyclictest1607995-21kworker/u8:2+flush-179:012:09:591
1515277998677,7cyclictest1596414-21kworker/u8:3+flush-179:011:25:261
1515277998674,9cyclictest1556719-21kworker/u8:0+flush-179:009:20:011
1515276998676,7cyclictest1539410-21kworker/u8:2+flush-179:008:30:210
1515276998578,5cyclictest1572216-21kworker/u8:0+flush-179:010:05:220
1515276998475,6cyclictest1556719-21kworker/u8:0+flush-179:009:20:220
1515276998378,4cyclictest1567498-21kworker/u8:3+flush-179:010:25:240
1515277998276,4cyclictest1547832-21kworker/u8:1+events_unbound09:05:011
1515277998276,4cyclictest1519974-21kworker/u8:2+flush-179:007:40:231
1515276998276,4cyclictest1562407-21kworker/u8:2+flush-179:009:45:220
1515277998159,19cyclictest1564834-21diskstats09:40:151
1515276998173,6cyclictest1581783-21latency_hist10:35:010
1515276998073,5cyclictest1588127-21kworker/u8:3+flush-179:011:00:010
1515276998073,5cyclictest1565877-21latency_hist09:45:010
1515276998071,6cyclictest1607995-21kworker/u8:2+flush-179:012:05:220
4577091790,18ptp4l61490irq/134-eno1-TxRx-007:05:513
4577091790,18ptp4l61490irq/134-eno1-TxRx-007:05:513
1515277997970,7cyclictest1544423-21apt-get08:40:041
1515277997968,7cyclictest1529592-21kworker/u8:3+flush-179:008:30:001
1515277997869,6cyclictest1559236-21kworker/u8:3+flush-179:009:30:221
1515277997865,10cyclictest1542551-21apt-get08:35:011
1515277997768,7cyclictest1614638-21apt-get12:15:121
1515276997769,6cyclictest1603341-21kworker/u8:1+flush-179:011:55:160
1515276997768,7cyclictest1213033-21systemd-journal07:54:590
1515276997768,6cyclictest1607995-21kworker/u8:2+flush-179:012:00:160
1515276997765,10cyclictest1213033-21systemd-journal08:20:010
1515276997671,3cyclictest1588127-21kworker/u8:3+flush-179:011:05:210
1515276997671,3cyclictest1588127-21kworker/u8:3+flush-179:011:05:210
1515276997667,7cyclictest1614417-21kworker/u8:3+flush-179:012:30:170
1515276997566,7cyclictest1604705-21cp11:45:010
1515277997467,5cyclictest1213033-21systemd-journal11:42:321
1515277997464,7cyclictest1213033-21systemd-journal07:40:011
1515277997265,5cyclictest1546512-21apt-get08:45:121
1515277997263,7cyclictest1588148-21latency_hist10:55:011
1515276997261,8cyclictest1529592-21kworker/u8:3+events_unbound08:05:150
151527699721,69cyclictest1-21systemd11:35:320
1515277997159,9cyclictest1213033-21systemd-journal12:05:001
1515276997163,6cyclictest1613052-21apt-get12:10:100
1515276997065,4cyclictest1607995-21kworker/u8:2+flush-179:012:35:230
1515276997062,6cyclictest1213033-21systemd-journal08:29:540
1515276996959,8cyclictest1597976-21apt-get11:25:000
1515276996959,8cyclictest1597976-21apt-get11:24:590
1515276996945,6cyclictest1508865-21kworker/u8:3+flush-179:007:35:000
1515277996839,18cyclictest1213033-21systemd-journal12:20:311
1515276996861,5cyclictest1614417-21kworker/u8:3+flush-179:012:20:160
1515276996860,6cyclictest1567498-21kworker/u8:3+events_unbound10:00:250
1515277996758,7cyclictest1562407-21kworker/u8:2+flush-179:009:45:251
1515277996659,5cyclictest1591579-21kworker/u8:1+flush-179:011:15:001
1515277996644,20cyclictest1590268-21apt-get11:00:121
1515277996558,5cyclictest1577279-21apt-get10:20:131
1515276996559,4cyclictest1519974-21kworker/u8:2+flush-179:007:45:230
1515276996557,5cyclictest1591579-21kworker/u8:1+events_unbound11:15:210
1515276996453,9cyclictest1548099-21apt-get08:50:090
1515277996340,20cyclictest1564017-21apt-get09:39:591
1515277996254,6cyclictest1622346-21apt-get12:40:001
1515276996255,4cyclictest1508865-21kworker/u8:3+events_unbound07:20:010
1515277996153,6cyclictest1546243-21kworker/u8:0+flush-179:008:55:231
1515277996153,6cyclictest1544423-21apt-get08:40:001
1515277996153,6cyclictest1544423-21apt-get08:40:001
1515276996157,3cyclictest1583424-21kworker/u8:1+events_unbound10:50:250
1515276996156,4cyclictest1582037-21apt-get10:35:130
151527699610,59cyclictest1-21systemd10:18:320
1515277996053,6cyclictest1591579-21kworker/u8:1+flush-179:011:10:001
1515277996053,6cyclictest1591579-21kworker/u8:1+flush-179:011:10:001
1515277996052,6cyclictest1515177-21kworker/u8:0+flush-179:007:25:221
1515277996052,6cyclictest1515177-21kworker/u8:0+flush-179:007:25:221
1515277996051,7cyclictest510-21rs:main1
1515276996055,4cyclictest1567447-21kworker/u8:1+flush-179:009:55:010
1515276996054,4cyclictest1588127-21kworker/u8:3+flush-179:011:10:240
1515276996051,7cyclictest1529592-21kworker/u8:3+events_unbound08:20:220
1515277995950,6cyclictest1614417-21kworker/u8:3+flush-179:012:30:221
1515277995948,8cyclictest1567498-21kworker/u8:3+flush-179:010:00:221
1515276995953,5cyclictest1596414-21kworker/u8:3+events_unbound11:25:240
1515277995848,8cyclictest1572499-21apt-get10:05:121
1515276995846,10cyclictest1213033-21systemd-journal09:20:000
1515277995751,4cyclictest1581774-21kworker/u8:0+flush-179:010:35:001
1515277995745,9cyclictest1552881-21apt-get09:05:131
1515276995752,3cyclictest1562407-21kworker/u8:2+events_unbound09:35:240
1515277995649,5cyclictest1527959-21kworker/u8:1+events_unbound08:10:001
1515276995652,3cyclictest1546243-21kworker/u8:0+flush-179:009:01:010
1515276995651,4cyclictest1527959-21kworker/u8:1+flush-179:008:10:140
1515276995648,6cyclictest1581774-21kworker/u8:0+flush-179:011:05:010
1515277995548,5cyclictest1588127-21kworker/u8:3+flush-179:010:55:211
1515277995547,6cyclictest1515177-21kworker/u8:0+events_unbound07:54:591
1515276995548,5cyclictest1515177-21kworker/u8:0+events_unbound07:25:260
1515276995548,5cyclictest1515177-21kworker/u8:0+events_unbound07:25:250
1515277995449,4cyclictest0-21swapper/111:51:591
1515277995444,8cyclictest1556719-21kworker/u8:0+flush-179:009:25:221
1515276995438,9cyclictest1559236-21kworker/u8:3+events_unbound09:30:150
1515277995347,4cyclictest1547832-21kworker/u8:1+flush-179:008:50:181
1515276995346,5cyclictest1527959-21kworker/u8:1+flush-179:008:00:180
1515277995142,7cyclictest1519974-21kworker/u8:2+flush-179:007:30:231
1515277995140,9cyclictest1213033-21systemd-journal08:24:591
1515276995146,4cyclictest1607995-21kworker/u8:2+flush-179:012:15:170
1515276995145,5cyclictest1546243-21kworker/u8:0+events_unbound09:05:280
1515276995144,5cyclictest1556719-21kworker/u8:0+events_unbound09:30:010
1515277994941,6cyclictest1213033-21systemd-journal09:55:321
1515277994931,16cyclictest714-21Xorg07:21:591
1515276994942,5cyclictest1581774-21kworker/u8:0+flush-179:010:40:250
1515277994841,6cyclictest1572216-21kworker/u8:0+flush-179:010:10:151
1515276994842,4cyclictest1519974-21kworker/u8:2+flush-179:007:40:130
1515276994841,5cyclictest1529592-21kworker/u8:3+flush-179:008:46:330
1515276994839,6cyclictest1603341-21kworker/u8:1+flush-179:011:55:010
1515277994438,5cyclictest1554246-21kworker/u8:3+flush-179:009:10:161
1515276994339,3cyclictest1581774-21kworker/u8:0+flush-179:010:45:020
1515277994238,3cyclictest1596414-21kworker/u8:3+flush-179:011:20:241
1515277994238,3cyclictest1596414-21kworker/u8:3+flush-179:011:20:231
1515277994235,5cyclictest1578865-21apt-get10:25:131
1515277994219,21cyclictest1213033-21systemd-journal11:40:001
151528199400,1cyclictest0-21swapper/211:29:592
1515277994033,6cyclictest1563996-21kworker/u8:0+flush-179:009:50:211
151527799400,38cyclictest714-21Xorg10:44:591
151527799400,32cyclictest1617594-21turbostat12:29:551
151528199390,36cyclictest0-21swapper/210:07:592
151528199390,36cyclictest0-21swapper/207:48:592
151528199390,1cyclictest0-21swapper/211:04:592
1515277993935,3cyclictest1556719-21kworker/u8:0+flush-179:009:20:161
151527799391,2cyclictest714-21Xorg11:48:591
1515281993835,2cyclictest0-21swapper/207:58:592
151528199380,36cyclictest0-21swapper/212:37:592
151528199380,35cyclictest0-21swapper/211:53:592
1515277993830,6cyclictest1213033-21systemd-journal11:15:011
151528399370,36cyclictest0-21swapper/311:17:593
151528399370,36cyclictest0-21swapper/309:33:593
1515281993734,2cyclictest0-21swapper/207:54:002
151528199370,35cyclictest0-21swapper/212:10:592
151528199370,35cyclictest0-21swapper/209:33:592
151528199370,35cyclictest0-21swapper/207:11:592
151527799370,36cyclictest0-21swapper/111:59:561
1515283993634,1cyclictest0-21swapper/312:26:583
1515283993634,1cyclictest0-21swapper/312:23:593
1515283993634,1cyclictest0-21swapper/311:39:553
1515283993634,1cyclictest0-21swapper/309:07:003
1515283993634,1cyclictest0-21swapper/307:23:593
1515283993630,4cyclictest1596384-21turbostat11:24:553
1515283993630,4cyclictest1596384-21turbostat11:24:543
151528399360,35cyclictest0-21swapper/309:37:003
151528399360,35cyclictest0-21swapper/309:02:003
151528399360,35cyclictest0-21swapper/308:09:563
151528399360,29cyclictest0-21swapper/311:41:593
151528399360,1cyclictest0-21swapper/307:58:583
1515281993634,1cyclictest0-21swapper/210:59:592
1515281993633,2cyclictest0-21swapper/209:05:592
1515281993632,2cyclictest0-21swapper/208:37:002
1515281993632,2cyclictest0-21swapper/208:36:592
151528199360,34cyclictest0-21swapper/211:31:002
1515277993630,5cyclictest1515177-21kworker/u8:0+flush-179:007:15:231
1515283993533,1cyclictest0-21swapper/311:54:563
1515283993533,1cyclictest0-21swapper/310:39:593
1515283993533,1cyclictest0-21swapper/310:19:593
1515283993532,2cyclictest0-21swapper/308:28:583
1515281993532,2cyclictest0-21swapper/210:01:592
151527799352,29cyclictest1515282-21sed07:10:021
151527799352,29cyclictest1515282-21sed07:10:011
1515283993432,1cyclictest0-21swapper/312:33:003
1515281993432,1cyclictest0-21swapper/210:15:592
1515281993431,2cyclictest0-21swapper/210:36:592
1515281993330,2cyclictest0-21swapper/210:33:002
1515283993229,2cyclictest0-21swapper/310:14:583
1515281993229,2cyclictest0-21swapper/208:06:002
1515283993129,1cyclictest0-21swapper/310:20:593
1515281993129,1cyclictest0-21swapper/208:33:592
1515281993128,2cyclictest0-21swapper/209:11:002
1515281993128,2cyclictest0-21swapper/208:12:592
1515281993128,2cyclictest0-21swapper/207:33:002
1515283993028,1cyclictest0-21swapper/312:39:593
1515283993027,2cyclictest0-21swapper/309:15:013
1515283993026,3cyclictest1544425-21turbostat08:40:013
1515283993026,3cyclictest1544425-21turbostat08:40:003
151528399300,28cyclictest0-21swapper/311:25:033
151528399300,28cyclictest0-21swapper/308:40:153
151528399300,28cyclictest0-21swapper/308:00:013
1515281993028,1cyclictest0-21swapper/210:54:592
1515281993027,2cyclictest0-21swapper/210:41:592
151528199300,28cyclictest0-21swapper/209:40:002
151527799305,2cyclictest1614006-21mailstats12:10:231
151528399293,18cyclictest1594778-21turbostat11:15:003
1515283992927,1cyclictest0-21swapper/309:40:023
1515283992926,2cyclictest431rcuc/307:50:133
1515283992926,2cyclictest0-21swapper/310:50:133
1515283992925,3cyclictest1573839-21turbostat10:10:003
151528399290,28cyclictest0-21swapper/312:00:133
151528399290,27cyclictest0-21swapper/309:20:143
1515281992926,2cyclictest0-21swapper/211:21:592
1515281992926,2cyclictest0-21swapper/211:21:592
1515281992926,2cyclictest0-21swapper/209:58:582
1515281992926,2cyclictest0-21swapper/208:40:022
151528199290,28cyclictest0-21swapper/208:50:112
151528199290,27cyclictest0-21swapper/212:25:132
151528199290,27cyclictest0-21swapper/207:35:142
151528199290,27cyclictest0-21swapper/207:20:132
151528199290,27cyclictest0-21swapper/207:15:132
1515283992826,1cyclictest0-21swapper/309:54:553
1515283992826,1cyclictest0-21swapper/307:46:593
1515283992826,1cyclictest0-21swapper/307:35:593
151528399280,2cyclictest1555801-21turbostat09:14:593
151528399280,27cyclictest0-21swapper/311:45:023
151528399280,27cyclictest0-21swapper/310:00:133
151528399280,26cyclictest0-21swapper/311:30:123
151528399280,26cyclictest0-21swapper/311:00:133
151528399280,26cyclictest0-21swapper/308:10:123
151528399280,26cyclictest0-21swapper/307:25:143
151528399280,26cyclictest0-21swapper/307:25:133
1515281992825,2cyclictest0-21swapper/212:30:122
1515281992825,2cyclictest0-21swapper/212:05:132
1515281992825,2cyclictest0-21swapper/211:14:552
1515281992825,2cyclictest0-21swapper/210:49:552
1515281992825,2cyclictest0-21swapper/209:40:022
1515281992825,2cyclictest0-21swapper/209:22:592
1515281992825,2cyclictest0-21swapper/207:41:582
151528199280,26cyclictest0-21swapper/210:25:142
151528199280,26cyclictest0-21swapper/208:20:142
151528199280,21cyclictest0-21swapper/211:35:132
1515276992819,7cyclictest1515121-21latency_hist07:10:020
1515276992819,7cyclictest1515121-21latency_hist07:10:020
1515283992725,1cyclictest0-21swapper/311:55:123
1515283992725,1cyclictest0-21swapper/310:48:593
1515283992725,1cyclictest0-21swapper/308:15:133
151528399270,1cyclictest0-21swapper/309:25:133
151528399270,1cyclictest0-21swapper/308:30:123
1515281992725,1cyclictest0-21swapper/208:04:592
1515281992724,2cyclictest0-21swapper/212:18:592
1515281992724,2cyclictest0-21swapper/211:55:592
1515281992724,2cyclictest0-21swapper/209:18:592
1515281992723,2cyclictest0-21swapper/211:40:592
151528199270,25cyclictest0-21swapper/211:46:002
1515283992624,1cyclictest0-21swapper/308:21:003
1515283992624,1cyclictest0-21swapper/307:34:003
151528399260,1cyclictest0-21swapper/310:55:593
1515281992624,1cyclictest0-21swapper/209:50:122
151528199260,1cyclictest0-21swapper/208:45:582
4577091250,3ptp4l441ktimers/311:10:003
4577091250,3ptp4l441ktimers/311:10:003
4577091250,3ptp4l441ktimers/310:45:013
4577091250,3ptp4l441ktimers/310:35:013
4577091250,3ptp4l441ktimers/307:45:003
1515283992523,1cyclictest0-21swapper/310:28:003
1515283992523,1cyclictest0-21swapper/309:56:593
1515283992523,1cyclictest0-21swapper/307:11:583
151528399250,24cyclictest0-21swapper/312:10:583
1515281992522,2cyclictest0-21swapper/211:06:592
1515281992522,2cyclictest0-21swapper/211:06:592
1515281992522,2cyclictest0-21swapper/208:26:592
151528199250,2cyclictest0-21swapper/207:28:592
151528199250,2cyclictest0-21swapper/207:28:582
4577091240,3ptp4l61490irq/134-eno1-TxRx-012:20:013
4577091240,3ptp4l441ktimers/312:09:553
4577091240,3ptp4l441ktimers/309:49:553
4577091240,3ptp4l441ktimers/308:55:003
4577091240,3ptp4l441ktimers/307:19:563
1515283992422,1cyclictest0-21swapper/308:50:003
151528399240,1cyclictest0-21swapper/308:58:583
1515281992421,2cyclictest0-21swapper/212:04:542
1515281992421,2cyclictest0-21swapper/208:15:582
1515281992320,2cyclictest0-21swapper/208:58:582
1515281992219,2cyclictest0-21swapper/209:48:592
1515281992219,2cyclictest0-21swapper/209:29:592
1515281992118,2cyclictest0-21swapper/211:15:132
1515281992017,2cyclictest0-21swapper/209:03:592
1515281991411,2cyclictest0-21swapper/212:22:592
151528199129,2cyclictest0-21swapper/210:10:592
15152819996,2cyclictest0-21swapper/210:24:392
15152819930,2cyclictest0-21swapper/207:10:022
15152819930,2cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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