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2026-07-11 - 20:40
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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 Jul 11, 2026 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
180045399143126,7cyclictest1811666-21kworker/u8:1+events_unbound08:04:011
180045199136125,8cyclictest1871854-21latency_hist10:50:010
180045399129115,5cyclictest1834197-21kworker/u8:1+events_unbound09:30:011
180045199124112,9cyclictest1816406-21latency_hist08:00:010
180045399123117,5cyclictest1884836-21kworker/u8:0+events_unbound11:30:001
180045399123117,5cyclictest1884836-21kworker/u8:0+events_unbound11:30:001
180045199120110,7cyclictest1805243-21latency_hist07:25:010
180045399116107,7cyclictest1897613-21kworker/u8:3+flush-179:012:35:011
180045199116102,10cyclictest1213033-21systemd-journal12:05:000
180045399113104,7cyclictest1892789-21kworker/u8:0+flush-179:012:10:251
180045399112108,3cyclictest1849299-21kworker/u8:3+flush-179:009:40:251
180045399112103,7cyclictest1831074-21kworker/u8:3+events_unbound09:15:031
18004539911197,6cyclictest1888079-21kworker/u8:1+events_unbound12:00:251
18004539910999,7cyclictest1878458-21kworker/u8:0+events_unbound11:20:261
18004519910899,6cyclictest1827846-21latency_hist08:35:000
180045399105100,3cyclictest1873734-21kworker/u8:2+flush-179:011:05:251
18004539910398,4cyclictest1816453-21kworker/u8:3+events_unbound08:05:251
18004539910393,7cyclictest1802036-21kworker/u8:3+events_unbound07:45:241
18004539910391,8cyclictest1897613-21kworker/u8:3+events_unbound12:20:201
18004539910195,4cyclictest1902597-21kworker/u8:0+events_unbound12:30:001
18004539910194,5cyclictest1892789-21kworker/u8:0+flush-179:012:05:231
18004539910094,4cyclictest1802036-21kworker/u8:3+events_unbound07:20:221
18004539910092,5cyclictest1855644-21kworker/u8:0+events_unbound10:20:151
18004539910092,5cyclictest1855644-21kworker/u8:0+events_unbound10:20:151
1800451999885,10cyclictest1213033-21systemd-journal08:55:010
1800453999789,5cyclictest1855644-21kworker/u8:0+flush-179:010:30:211
1800453999781,5cyclictest1859154-21kworker/u8:3+events_unbound10:25:191
1800453999690,4cyclictest1855644-21kworker/u8:0+flush-179:010:35:211
1800453999688,5cyclictest1888009-21kworker/u8:0+flush-179:011:45:231
1800453999587,5cyclictest1805279-21kworker/u8:1+flush-179:007:30:201
1800453999587,5cyclictest1805279-21kworker/u8:1+flush-179:007:30:201
1800453999585,7cyclictest1213033-21systemd-journal07:10:171
1800453999489,3cyclictest1855644-21kworker/u8:0+events_unbound10:05:251
1800453999488,4cyclictest1798717-21kworker/u8:1+events_unbound07:15:191
1800453999484,7cyclictest1846168-21kworker/u8:0+flush-179:009:35:211
1800453999480,5cyclictest1834197-21kworker/u8:1+events_unbound09:20:141
1800453999187,3cyclictest1855662-21kworker/u8:1+events_unbound10:10:261
1800453999185,4cyclictest1823129-21kworker/u8:0+events_unbound08:25:201
1800453998883,4cyclictest1802036-21kworker/u8:3+events_unbound07:35:241
1800453998882,4cyclictest1876869-21kworker/u8:3+flush-179:011:10:211
1800453998882,4cyclictest1855644-21kworker/u8:0+flush-179:010:00:211
1800453998872,5cyclictest1888079-21kworker/u8:1+events_unbound12:15:241
180045399881,85cyclictest1-21systemd08:20:011
1800453998783,3cyclictest1873683-21kworker/u8:1+flush-179:011:00:261
1800451998781,4cyclictest1831074-21kworker/u8:3+flush-179:009:05:210
1800453998575,7cyclictest1829420-21kworker/u8:1+events_unbound08:40:191
1800453998575,7cyclictest1827831-21kworker/u8:0+events_unbound08:50:141
1800453998479,3cyclictest1814787-21kworker/u8:0+events_unbound07:55:231
1800453998476,5cyclictest1871839-21kworker/u8:0+events_unbound10:55:201
1800451998475,7cyclictest1213033-21systemd-journal09:05:000
1800453998376,4cyclictest1834197-21kworker/u8:1+events_unbound09:30:261
1800451998374,7cyclictest1213033-21systemd-journal09:45:000
1800451998372,9cyclictest1823129-21kworker/u8:0+events_unbound08:25:010
1800453998278,3cyclictest1876869-21kworker/u8:3+events_unbound11:15:251
1800453998271,8cyclictest1873734-21kworker/u8:2+events_unbound11:35:011
1800453998175,4cyclictest1902597-21kworker/u8:0+flush-179:012:35:221
1800453998171,7cyclictest1871839-21kworker/u8:0+events_unbound10:50:201
1800453998075,3cyclictest1811666-21kworker/u8:1+flush-179:007:50:211
1800453997974,4cyclictest1859154-21kworker/u8:3+events_unbound10:45:251
1800453997971,3cyclictest1831074-21kworker/u8:3+events_unbound09:05:251
1800453997970,7cyclictest1213033-21systemd-journal07:30:001
1800453997873,3cyclictest1849299-21kworker/u8:3+flush-179:009:50:211
1800453997869,6cyclictest1834465-21apt-get08:55:121
1800453997667,3cyclictest1811666-21kworker/u8:1+events_unbound08:30:211
1800453997666,8cyclictest1888299-21apt-get11:40:131
1800451997671,4cyclictest1873683-21kworker/u8:1+events_unbound11:00:420
1800451997670,5cyclictest1859154-21kworker/u8:3+events_unbound10:40:000
1800451997669,5cyclictest1876869-21kworker/u8:3+flush-179:011:20:010
1800451997666,8cyclictest1883516-21apt-get11:25:120
1800451997666,8cyclictest1883516-21apt-get11:25:120
1800453997569,4cyclictest1888079-21kworker/u8:1+flush-179:011:55:201
1800451997566,7cyclictest1213033-21systemd-journal12:40:010
1800451997466,6cyclictest1831029-21kworker/u8:2+events_unbound09:00:000
1800451997465,7cyclictest1873734-21kworker/u8:2+flush-179:011:45:000
1800451997366,5cyclictest1897613-21kworker/u8:3+flush-179:012:20:210
1800453997268,3cyclictest1831029-21kworker/u8:2+events_unbound08:45:241
1800453997268,3cyclictest1831029-21kworker/u8:2+events_unbound08:45:231
1800453997265,6cyclictest1873734-21kworker/u8:2+flush-179:011:35:211
1800458997162,6cyclictest1894421-21turbostat12:00:003
1800451997162,7cyclictest1880065-21latency_hist11:15:010
1800453997065,4cyclictest1831029-21kworker/u8:2+flush-179:009:00:221
1800451997063,5cyclictest1816453-21kworker/u8:3+events_unbound08:05:000
1800451996960,7cyclictest1855644-21kworker/u8:0+events_unbound10:20:010
1800453996864,3cyclictest1849299-21kworker/u8:3+flush-179:009:55:211
1800453996863,4cyclictest1816453-21kworker/u8:3+flush-179:008:20:281
1800453996861,5cyclictest1846168-21kworker/u8:0+events_unbound09:45:241
1800451996861,5cyclictest1859154-21kworker/u8:3+flush-179:010:25:250
1800451996856,10cyclictest1841108-21apt-get09:14:590
1800456996764,2cyclictest0-21swapper/208:01:002
1800451996659,5cyclictest1855644-21kworker/u8:0+flush-179:010:05:150
1800451996651,6cyclictest1802302-21apt-get07:15:120
1800453996557,5cyclictest1870269-21latency_hist10:45:011
1800451996557,6cyclictest1823129-21kworker/u8:0+flush-179:008:25:160
1800453996453,4cyclictest1816453-21kworker/u8:3+events_unbound08:10:231
1800451996456,6cyclictest1842997-21kworker/u8:2+flush-179:009:25:010
1800458996361,1cyclictest0-21swapper/308:00:593
1800451996360,2cyclictest714-21Xorg11:48:590
1800453996258,3cyclictest1802036-21kworker/u8:3+events_unbound07:40:231
1800451996255,6cyclictest1793871-21kworker/u8:0+flush-179:007:44:590
1800451996254,5cyclictest1814800-21latency_hist07:55:020
1800451996253,6cyclictest1842954-21latency_hist09:20:000
1800451996157,3cyclictest1892789-21kworker/u8:0+events_unbound12:10:420
1800451996155,5cyclictest1811666-21kworker/u8:1+flush-179:007:50:010
1800453995955,3cyclictest1827831-21kworker/u8:0+events_unbound08:35:261
1800451995948,9cyclictest1859154-21kworker/u8:3+flush-179:010:25:010
1800451995948,9cyclictest1859154-21kworker/u8:3+flush-179:010:25:010
1800451995847,9cyclictest1827831-21kworker/u8:0+flush-179:008:40:010
1800453995753,3cyclictest1873734-21kworker/u8:2+events_unbound11:50:241
1800451995750,6cyclictest1816453-21kworker/u8:3+flush-179:008:15:000
1800451995747,8cyclictest1892789-21kworker/u8:0+events_unbound11:55:000
1800451995548,6cyclictest1888079-21kworker/u8:1+events_unbound12:00:010
1800451995548,5cyclictest510-21rs:main0
1800451995447,6cyclictest1805279-21kworker/u8:1+flush-179:007:30:180
1800451995447,6cyclictest1805279-21kworker/u8:1+flush-179:007:30:170
1800451995349,3cyclictest1816453-21kworker/u8:3+events_unbound08:15:010
1800451995346,6cyclictest1213033-21systemd-journal11:25:000
1800451995247,4cyclictest1892789-21kworker/u8:0+flush-179:012:05:250
1800451995245,5cyclictest1855644-21kworker/u8:0+flush-179:010:30:230
1800451995139,9cyclictest1855662-21kworker/u8:1+flush-179:010:10:250
1800451995044,5cyclictest1829420-21kworker/u8:1+flush-179:008:40:270
4577091480,11ptp4l441ktimers/307:10:013
1800451994844,3cyclictest1831029-21kworker/u8:2+events_unbound08:45:010
1800451994844,3cyclictest1831029-21kworker/u8:2+events_unbound08:45:010
1800453994742,4cyclictest1831074-21kworker/u8:3+flush-179:009:10:221
1800451994638,6cyclictest1849299-21kworker/u8:3+events_unbound09:55:250
1800451994637,7cyclictest1871839-21kworker/u8:0+flush-179:010:50:170
1800451994539,5cyclictest1897613-21kworker/u8:3+flush-179:012:25:270
1800456994439,2cyclictest0-21swapper/207:46:592
1800451994437,6cyclictest1818303-21apt-get08:05:120
180045899430,41cyclictest0-21swapper/309:33:593
180045699430,34cyclictest0-21swapper/209:33:592
1800453994338,4cyclictest1855662-21kworker/u8:1+events_unbound10:15:221
1800451994339,3cyclictest1897613-21kworker/u8:3+events_unbound12:34:400
1800451994339,3cyclictest1834197-21kworker/u8:1+events_unbound09:30:070
1800451994339,3cyclictest1810053-21munin-run07:40:000
1800451994334,7cyclictest1878480-21latency_hist11:10:000
1800451994328,11cyclictest1213033-21systemd-journal09:30:000
180045899420,41cyclictest0-21swapper/311:37:593
1800456994238,2cyclictest0-21swapper/211:06:592
1800451994237,3cyclictest1875294-21sendmail11:00:000
1800451994235,5cyclictest1852530-21systemd-run09:50:000
180045899410,1cyclictest0-21swapper/309:59:003
4577091400,3ptp4l441ktimers/309:00:023
180045899400,1cyclictest0-21swapper/307:22:593
1800451994036,3cyclictest1884836-21kworker/u8:0+events_unbound11:32:030
1800458993936,2cyclictest0-21swapper/307:46:593
1800456993935,2cyclictest0-21swapper/211:39:552
180045699390,36cyclictest0-21swapper/211:34:542
1800451993933,4cyclictest1857280-21munin-run10:05:000
180045899380,37cyclictest1823084-21turbostat08:24:563
180045899380,36cyclictest0-21swapper/311:20:593
1800456993834,2cyclictest0-21swapper/212:05:592
1800456993834,2cyclictest0-21swapper/207:57:592
1800451993831,5cyclictest1-21systemd12:17:400
1800458993735,1cyclictest0-21swapper/311:06:593
1800456993733,2cyclictest0-21swapper/212:29:552
180045699370,35cyclictest0-21swapper/209:20:592
180045699370,35cyclictest0-21swapper/209:16:592
180045699370,35cyclictest0-21swapper/208:46:002
180045699370,35cyclictest0-21swapper/208:45:592
180045199373,31cyclictest1852753-21apt-get09:50:130
1800451993731,5cyclictest1802036-21kworker/u8:3+flush-179:007:25:160
180045199370,36cyclictest0-21swapper/007:10:590
1800458993634,1cyclictest0-21swapper/308:45:593
1800458993634,1cyclictest0-21swapper/308:45:593
180045899360,35cyclictest0-21swapper/311:34:553
180045899360,35cyclictest0-21swapper/310:03:593
180045899360,35cyclictest0-21swapper/309:19:593
180045899360,1cyclictest0-21swapper/311:54:593
180045899360,1cyclictest0-21swapper/310:47:593
1800456993634,1cyclictest0-21swapper/208:09:582
1800456993632,2cyclictest0-21swapper/210:54:552
180045699360,1cyclictest0-21swapper/209:30:002
1800458993531,2cyclictest0-21swapper/312:05:593
1800458993531,2cyclictest0-21swapper/307:57:583
180045899350,1cyclictest0-21swapper/311:04:593
1800456993532,2cyclictest0-21swapper/208:25:592
1800451993523,9cyclictest1859154-21kworker/u8:3+flush-179:010:40:220
4577091340,13ptp4l61490irq/134-eno1-TxRx-008:15:013
1800456993431,2cyclictest0-21swapper/212:39:582
1800451993430,3cyclictest1873734-21kworker/u8:2+events_unbound11:38:120
1800458993331,1cyclictest0-21swapper/308:09:593
180045899330,31cyclictest0-21swapper/309:50:593
1800456993329,2cyclictest0-21swapper/210:29:562
180045699330,31cyclictest0-21swapper/209:55:582
180045699330,2cyclictest0-21swapper/211:23:592
180045699330,2cyclictest0-21swapper/209:50:592
1800456993229,2cyclictest0-21swapper/212:34:592
1800456993229,2cyclictest0-21swapper/211:51:592
1800456993229,2cyclictest0-21swapper/209:04:592
4577091310,7ptp4l441ktimers/311:00:003
1800458993129,1cyclictest0-21swapper/312:29:553
1800458993129,1cyclictest0-21swapper/310:18:593
1800458993129,1cyclictest0-21swapper/308:25:593
1800456993127,2cyclictest0-21swapper/208:37:582
4577091300,6ptp4l441ktimers/309:09:573
1800458993028,1cyclictest0-21swapper/312:39:593
1800458993028,1cyclictest0-21swapper/310:54:553
1800456993027,2cyclictest0-21swapper/211:10:132
1800456993027,2cyclictest0-21swapper/210:56:592
1800456993027,2cyclictest0-21swapper/208:32:002
1800456993027,2cyclictest0-21swapper/207:40:132
180045699300,2cyclictest0-21swapper/211:15:142
180045699300,2cyclictest0-21swapper/209:49:592
4577091290,7ptp4l61490irq/134-eno1-TxRx-012:25:003
4577091290,7ptp4l441ktimers/307:34:563
4577091290,7ptp4l441ktimers/307:34:553
4577091290,6ptp4l441ktimers/309:45:003
4577091290,6ptp4l441ktimers/308:20:003
1800458992927,1cyclictest0-21swapper/310:29:563
1800458992927,1cyclictest0-21swapper/307:35:143
180045899290,27cyclictest0-21swapper/312:30:143
180045899290,27cyclictest0-21swapper/311:15:143
180045899290,27cyclictest0-21swapper/309:35:133
180045899290,27cyclictest0-21swapper/308:30:123
1800456992926,2cyclictest0-21swapper/207:35:142
180045699290,2cyclictest0-21swapper/209:05:012
180045699290,27cyclictest0-21swapper/212:15:132
180045699290,27cyclictest0-21swapper/210:00:142
180045699290,27cyclictest0-21swapper/209:35:132
180045699290,27cyclictest0-21swapper/209:10:592
180045699290,27cyclictest0-21swapper/208:41:592
180045699290,27cyclictest0-21swapper/208:20:122
180045699290,27cyclictest0-21swapper/207:21:582
180045699290,27cyclictest0-21swapper/207:10:142
4577091280,6ptp4l61490irq/134-eno1-TxRx-008:40:013
4577091280,5ptp4l441ktimers/311:30:003
4577091280,5ptp4l441ktimers/310:10:003
1800458992825,2cyclictest0-21swapper/312:15:123
180045899280,2cyclictest0-21swapper/309:49:593
180045899280,27cyclictest0-21swapper/309:25:143
180045899280,27cyclictest0-21swapper/307:50:593
180045899280,27cyclictest0-21swapper/307:10:143
180045899280,26cyclictest0-21swapper/307:40:123
1800456992826,1cyclictest0-21swapper/211:59:592
1800456992825,2cyclictest0-21swapper/208:10:022
1800456992824,2cyclictest0-21swapper/210:49:002
180045699280,2cyclictest0-21swapper/211:44:002
4577091270,6ptp4l61490irq/134-eno1-TxRx-009:25:013
4577091270,6ptp4l441ktimers/310:40:003
4577091270,5ptp4l441ktimers/312:14:563
4577091270,5ptp4l441ktimers/311:44:563
4577091270,5ptp4l441ktimers/311:29:563
4577091270,5ptp4l441ktimers/310:14:563
4577091270,5ptp4l441ktimers/309:15:003
1800458992725,1cyclictest0-21swapper/308:45:003
180045899270,25cyclictest0-21swapper/311:48:593
1800456992724,2cyclictest0-21swapper/210:43:592
1800456992724,2cyclictest0-21swapper/208:51:592
1800456992723,2cyclictest0-21swapper/207:19:552
180045699270,24cyclictest0-21swapper/207:29:002
4577091260,5ptp4l61490irq/134-eno1-TxRx-012:05:013
4577091260,5ptp4l61490irq/134-eno1-TxRx-010:35:003
4577091260,5ptp4l61490irq/134-eno1-TxRx-010:24:563
4577091260,5ptp4l61490irq/134-eno1-TxRx-010:24:563
4577091260,5ptp4l61490irq/134-eno1-TxRx-007:29:563
4577091260,4ptp4l441ktimers/311:14:563
4577091260,4ptp4l441ktimers/307:20:003
180045899260,1cyclictest0-21swapper/310:40:143
180045899260,1cyclictest0-21swapper/308:52:003
1800456992623,2cyclictest0-21swapper/208:57:592
180045699260,2cyclictest0-21swapper/211:48:582
1800456992522,2cyclictest0-21swapper/212:23:582
1800456992522,2cyclictest0-21swapper/212:03:592
1800456992522,2cyclictest0-21swapper/211:02:592
1800456992522,2cyclictest0-21swapper/210:39:552
1800456992522,2cyclictest0-21swapper/210:05:012
1800456992521,2cyclictest0-21swapper/210:32:592
1800456992521,2cyclictest0-21swapper/207:50:582
1800456992320,2cyclictest0-21swapper/208:16:002
1800456992219,2cyclictest0-21swapper/210:24:552
1800456992219,2cyclictest0-21swapper/210:24:552
1800456992219,2cyclictest0-21swapper/210:10:582
1800456992218,2cyclictest0-21swapper/212:10:592
1800458992119,1cyclictest0-21swapper/308:57:583
1800456992118,2cyclictest0-21swapper/209:40:582
1800456992016,2cyclictest0-21swapper/207:32:002
1800456992016,2cyclictest0-21swapper/207:31:592
231999190,11rtkit-daemon2304-21lightdm-gtk-gre07:06:301
180045199191,14cyclictest1800454-21rm07:10:030
1800456991815,2cyclictest0-21swapper/211:28:592
1800456991815,2cyclictest0-21swapper/211:28:592
1800456991310,2cyclictest0-21swapper/210:19:002
18004569930,2cyclictest0-21swapper/207:10:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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