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2026-05-30 - 01:31
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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 May 29, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
253506199221210,8cyclictest2628908-21dpkg12:33:170
253506599160149,9cyclictest2628908-21dpkg12:33:171
253506599115104,8cyclictest2588937-21latency_hist10:35:021
253506199114109,4cyclictest2613129-21kworker/u8:2+flush-179:012:03:400
253506199112103,7cyclictest1213033-21systemd-journal11:50:000
253506199112101,8cyclictest2605127-21latency_hist11:25:010
253506199111102,5cyclictest1-21systemd12:35:350
25350659910396,4cyclictest2584124-21kworker/u8:2+events_unbound10:45:261
25350659910390,9cyclictest1213033-21systemd-journal12:03:151
25350619910393,5cyclictest2556714-21kworker/u8:2+flush-179:010:05:000
2535065999585,7cyclictest2551695-21latency_hist08:35:011
2535061999488,4cyclictest2539207-21kworker/u8:0+flush-179:008:00:240
2535065999183,6cyclictest2587348-21latency_hist10:30:001
2535065999181,7cyclictest510-21rs:main1
2535061999081,6cyclictest2535009-21kworker/u8:3+flush-179:007:20:000
2535061998983,4cyclictest2535009-21kworker/u8:3+flush-179:007:10:140
2535061998882,4cyclictest2540232-21kworker/u8:2+events_unbound07:35:010
2535061998879,6cyclictest2547714-21latency_hist08:15:010
2535061998777,7cyclictest2623597-21latency_hist12:20:010
2535061998655,12cyclictest2549320-21apt-get08:20:010
2535065998575,8cyclictest2621997-21latency_hist12:15:011
2535065998473,8cyclictest2625207-21apt-get12:25:001
2535061998276,4cyclictest2579588-21kworker/u8:0+flush-179:011:30:010
2535065997970,7cyclictest2546122-21apt-get08:05:101
2535061997772,3cyclictest2598545-21kworker/u8:1+flush-179:011:15:140
2535061997769,5cyclictest2538434-21kworker/u8:1+events_unbound07:50:140
2535061997767,6cyclictest2566605-21kworker/u8:4+flush-179:009:30:150
2535061997763,11cyclictest1213033-21systemd-journal08:00:000
2535065997666,8cyclictest2608559-21apt-get11:35:111
2535061997669,5cyclictest2588931-21kworker/u8:1+flush-179:010:35:230
2535061997669,5cyclictest2588931-21kworker/u8:1+flush-179:010:35:230
2535061997664,7cyclictest2605162-21kworker/u8:3+flush-179:011:50:210
2535061997664,7cyclictest2605162-21kworker/u8:3+flush-179:011:50:210
2535065997464,7cyclictest2536809-21latency_hist07:20:011
2535061997464,7cyclictest1213033-21systemd-journal09:49:150
2535065997362,9cyclictest2584124-21kworker/u8:2+flush-179:011:20:001
2535061997367,5cyclictest2574621-21kworker/u8:3+flush-179:010:10:220
2535061997367,5cyclictest2574621-21kworker/u8:3+flush-179:010:10:210
2535061997261,7cyclictest2579588-21kworker/u8:0+events_unbound10:50:240
2535061997160,9cyclictest2610168-21apt-get11:40:120
2535065997064,4cyclictest2613341-21apt-get11:50:121
2535065997064,4cyclictest2613341-21apt-get11:50:111
2535065996961,6cyclictest2545867-21latency_hist08:05:011
2535065996859,7cyclictest1213033-21systemd-journal08:59:551
2535061996856,8cyclictest2535009-21kworker/u8:3+flush-179:007:20:220
2535065996658,5cyclictest2542409-21latency_hist07:50:011
2535061996660,4cyclictest2556714-21kworker/u8:2+flush-179:009:50:210
2535061996660,4cyclictest2547765-21kworker/u8:3+flush-179:008:35:230
2535061996652,11cyclictest1213033-21systemd-journal09:05:010
2535065996556,7cyclictest1213033-21systemd-journal09:15:141
2535065996555,7cyclictest510-21rs:main1
2535061996558,4cyclictest2547692-21kworker/u8:0+flush-179:008:50:140
2535061996554,9cyclictest2561774-21apt-get09:10:130
2535065996454,7cyclictest2584124-21kworker/u8:2+events_unbound10:18:591
2535061996458,4cyclictest2553348-21kworker/u8:1+flush-179:008:55:160
2535061996457,5cyclictest2605162-21kworker/u8:3+flush-179:011:55:160
2535072996359,2cyclictest0-21swapper/308:43:003
2535061996358,3cyclictest2558583-21kworker/u8:3+flush-179:009:05:160
2535065996253,6cyclictest510-21rs:main1
2535061996255,5cyclictest2547692-21kworker/u8:0+flush-179:008:29:280
2535061996254,6cyclictest2592132-21latency_hist10:45:000
2535061996154,5cyclictest2579588-21kworker/u8:0+events_unbound10:05:190
2535061996055,4cyclictest2625175-21kworker/u8:0+flush-179:012:23:160
2535061996054,4cyclictest2625175-21kworker/u8:0+flush-179:012:25:110
2535061996054,4cyclictest2544831-21kworker/u8:2+flush-179:008:05:150
2535065995949,7cyclictest2594262-21diskstats10:50:141
2535061995853,4cyclictest2556714-21kworker/u8:2+events_unbound09:15:250
2535061995852,4cyclictest2579588-21kworker/u8:0+flush-179:011:10:200
2535061995850,6cyclictest2616322-21kworker/u8:1+flush-179:012:05:200
2535061995850,6cyclictest2556714-21kworker/u8:2+events_unbound09:45:000
2535065995742,13cyclictest2574558-21kworker/u8:1+events_unbound09:50:011
2535061995750,5cyclictest2547692-21kworker/u8:0+events_unbound08:45:100
2535061995652,3cyclictest2556714-21kworker/u8:2+flush-179:009:35:230
2535061995651,4cyclictest2579588-21kworker/u8:0+flush-179:010:45:160
2535061995650,4cyclictest2579588-21kworker/u8:0+flush-179:010:25:230
2535065995547,6cyclictest2556714-21kworker/u8:2+flush-179:009:25:221
2535065995545,7cyclictest510-21rs:main1
2535065995544,9cyclictest2553348-21kworker/u8:1+flush-179:009:00:201
2535065995544,8cyclictest1213033-21systemd-journal07:39:141
2535072995451,2cyclictest0-21swapper/309:48:593
2535065995344,7cyclictest2571322-21apt-get09:35:561
2535065995343,8cyclictest2575112-21diskstats09:50:141
2535061995349,3cyclictest2579588-21kworker/u8:0+events_unbound11:30:140
2535065995248,3cyclictest2558583-21kworker/u8:3+flush-179:009:20:131
2535065995244,6cyclictest2600083-21latency_hist11:10:001
2535061995248,3cyclictest2579588-21kworker/u8:0+events_unbound11:35:170
2535061995247,4cyclictest2574621-21kworker/u8:3+flush-179:010:20:210
2535061995246,4cyclictest2539207-21kworker/u8:0+flush-179:007:40:150
2535065995144,5cyclictest2612165-21kworker/u8:1+flush-179:011:45:251
2535065995037,12cyclictest2579588-21kworker/u8:0+flush-179:010:55:161
2535061995044,5cyclictest2593753-21kworker/u8:3+events_unbound11:00:240
2535061995044,3cyclictest1-21systemd09:25:010
4577091490,13ptp4l441ktimers/307:10:013
2535072994947,1cyclictest0-21swapper/308:06:593
2535065994939,7cyclictest1213033-21systemd-journal12:28:541
2535065994839,6cyclictest2549315-21latency_hist08:20:011
2535065994743,3cyclictest2579588-21kworker/u8:0+flush-179:011:10:141
2535061994742,4cyclictest2584124-21kworker/u8:2+flush-179:011:05:280
2535070994437,6cyclictest0-21swapper/211:52:582
2535070994437,6cyclictest0-21swapper/211:52:582
2535065994437,5cyclictest2605162-21kworker/u8:3+events_unbound11:40:231
2535065994436,6cyclictest2579588-21kworker/u8:0+events_unbound10:20:131
2535065994436,6cyclictest2535058-21cyclictest07:26:591
2535061994439,4cyclictest2579588-21kworker/u8:0+flush-179:010:15:130
2535061994438,5cyclictest2579588-21kworker/u8:0+events_unbound10:55:130
2535061994435,6cyclictest2556714-21kworker/u8:2+flush-179:009:55:180
2535061994430,5cyclictest2535009-21kworker/u8:3+flush-179:007:30:010
2535065994336,5cyclictest2597167-21apt-get11:00:121
2535065994333,8cyclictest2547692-21kworker/u8:0+flush-179:008:45:171
2535061994338,4cyclictest2584124-21kworker/u8:2+flush-179:010:30:200
253507099420,40cyclictest0-21swapper/210:52:582
2535065994236,4cyclictest1213033-21systemd-journal09:59:591
2535065994235,6cyclictest0-21swapper/110:09:591
253506599420,40cyclictest2629001-21turbostat12:39:551
253507299410,39cyclictest2572996-21turbostat09:45:003
2535072994038,1cyclictest0-21swapper/309:09:583
2535072994037,2cyclictest0-21swapper/307:45:593
2535072994033,5cyclictest2547727-21turbostat08:15:003
253507299400,38cyclictest2542161-21turbostat07:45:003
2535070994033,6cyclictest0-21swapper/210:56:002
2535065994034,4cyclictest2558583-21kworker/u8:3+flush-179:009:05:121
2535065994033,5cyclictest2544261-21latency_hist08:00:011
2535065994033,5cyclictest1213033-21systemd-journal08:21:141
253506599401,37cyclictest714-21Xorg12:07:591
2535072993937,1cyclictest0-21swapper/311:21:583
2535072993937,1cyclictest0-21swapper/310:07:593
2535070993932,6cyclictest0-21swapper/207:52:592
2535065993936,2cyclictest714-21Xorg07:51:591
2535065993933,5cyclictest2622252-21apt-get12:15:101
2535065993928,8cyclictest2534916-21latency_hist07:10:011
2535061993935,3cyclictest2553596-21systemd-run08:45:000
2535061993935,3cyclictest2538434-21kworker/u8:1+flush-179:008:20:060
2535061993934,4cyclictest2539207-21kworker/u8:0+flush-179:007:39:040
2535070993835,2cyclictest0-21swapper/211:32:002
2535070993830,7cyclictest0-21swapper/210:47:592
253507099380,36cyclictest0-21swapper/209:57:002
253507099380,36cyclictest0-21swapper/207:26:592
2535065993835,2cyclictest714-21Xorg08:14:591
2535065993835,2cyclictest0-21swapper/111:34:591
2535065993835,2cyclictest0-21swapper/108:44:591
2535061993833,4cyclictest2566605-21kworker/u8:4+flush-179:009:25:180
2535072993734,2cyclictest0-21swapper/310:35:593
2535072993734,2cyclictest0-21swapper/310:35:593
2535070993734,2cyclictest0-21swapper/210:42:002
2535070993734,2cyclictest0-21swapper/208:57:592
253507099370,35cyclictest0-21swapper/209:08:592
253507099370,35cyclictest0-21swapper/208:33:592
2535065993732,4cyclictest2584124-21kworker/u8:2+flush-179:010:45:011
2535072993634,1cyclictest0-21swapper/311:06:593
2535072993634,1cyclictest0-21swapper/309:50:593
2535072993634,1cyclictest0-21swapper/309:00:003
253507299360,35cyclictest0-21swapper/308:49:593
2535070993634,1cyclictest0-21swapper/212:09:592
2535070993634,1cyclictest0-21swapper/207:19:592
2535070993633,2cyclictest0-21swapper/211:37:582
2535065993631,4cyclictest1213033-21systemd-journal10:11:151
2535065993631,4cyclictest1213033-21systemd-journal10:11:141
253506599360,34cyclictest2571652-21apt-get09:40:131
2535072993533,1cyclictest0-21swapper/311:13:593
2535072993532,2cyclictest0-21swapper/309:32:593
253507099350,1cyclictest0-21swapper/212:04:562
253506599350,34cyclictest2589194-21http10:35:131
253506599350,34cyclictest2589194-21http10:35:131
2535061993530,3cyclictest714-21Xorg08:34:580
2535072993432,1cyclictest0-21swapper/310:23:593
2535072993432,1cyclictest0-21swapper/308:22:593
2535072993432,1cyclictest0-21swapper/307:21:593
2535072993432,1cyclictest0-21swapper/307:14:553
2535072993428,5cyclictest2611506-21turbostat11:45:013
2535070993431,2cyclictest0-21swapper/209:38:592
2535065993432,1cyclictest2535009-21kworker/u8:3+flush-179:007:25:011
253506599341,5cyclictest0-21swapper/108:25:121
253506599340,32cyclictest714-21Xorg11:59:591
2535072993331,1cyclictest0-21swapper/312:29:553
2535072993331,1cyclictest0-21swapper/311:15:593
2535072993331,1cyclictest0-21swapper/309:22:593
2535072993331,1cyclictest0-21swapper/308:32:593
2535072993331,1cyclictest0-21swapper/308:18:593
2535070993330,2cyclictest0-21swapper/212:28:592
2535070993330,2cyclictest0-21swapper/211:49:552
2535070993330,2cyclictest0-21swapper/211:14:552
2535070993330,2cyclictest0-21swapper/208:36:592
2535070993330,2cyclictest0-21swapper/207:47:582
2535061993327,5cyclictest2622002-21grep12:15:000
2535072993230,1cyclictest0-21swapper/312:38:583
2535072993226,5cyclictest2614684-21turbostat11:54:593
2535072993226,5cyclictest2614684-21turbostat11:54:593
2535070993229,2cyclictest0-21swapper/212:18:592
2535070993229,2cyclictest0-21swapper/211:56:592
2535070993226,5cyclictest0-21swapper/210:20:122
2535070993226,5cyclictest0-21swapper/210:00:122
2535070993225,6cyclictest0-21swapper/212:33:152
253506599320,2cyclictest714-21Xorg07:30:591
2535072993129,1cyclictest0-21swapper/307:58:593
2535070993128,2cyclictest0-21swapper/207:22:592
2535070993124,6cyclictest0-21swapper/209:15:032
253507099310,30cyclictest0-21swapper/208:50:132
253506599315,10cyclictest2569568-21cat09:30:241
2535065993123,7cyclictest0-21swapper/110:00:121
253506599311,15cyclictest2552772-21phc2sys08:35:211
2535061993127,3cyclictest2542411-21/usr/sbin/munin07:50:010
2535072993028,1cyclictest0-21swapper/312:19:553
2535072993028,1cyclictest0-21swapper/312:01:593
253507299300,28cyclictest0-21swapper/310:50:133
2535070993027,2cyclictest0-21swapper/209:45:152
2535070993022,7cyclictest0-21swapper/207:35:592
253507099300,2cyclictest0-21swapper/210:33:582
2535065993025,4cyclictest2525672-21kworker/u8:2+flush-179:007:10:201
2535065993022,5cyclictest0-21swapper/111:28:591
4577091290,6ptp4l441ktimers/311:35:003
2535072992927,1cyclictest0-21swapper/307:30:123
2535072992926,2cyclictest0-21swapper/309:35:133
253507299290,28cyclictest0-21swapper/310:30:113
253507299290,27cyclictest0-21swapper/312:25:013
253507299290,27cyclictest0-21swapper/311:55:133
253507299290,1cyclictest0-21swapper/307:50:093
2535070992926,2cyclictest0-21swapper/211:25:112
2535070992926,2cyclictest0-21swapper/211:15:122
2535070992926,2cyclictest0-21swapper/209:02:592
2535070992926,2cyclictest0-21swapper/208:20:022
2535070992926,2cyclictest0-21swapper/208:12:002
253507099290,27cyclictest0-21swapper/211:20:022
253507099290,27cyclictest0-21swapper/210:15:122
253507099290,27cyclictest0-21swapper/209:40:142
253507099290,27cyclictest0-21swapper/207:40:122
4578291280,1phc2sys0-21swapper/310:15:123
4577091280,6ptp4l441ktimers/308:40:013
2535072992826,1cyclictest0-21swapper/310:00:113
2535072992826,1cyclictest0-21swapper/309:04:563
2535072992826,1cyclictest0-21swapper/307:17:593
253507299280,2cyclictest0-21swapper/312:30:133
253507299280,2cyclictest0-21swapper/308:00:133
253507299280,27cyclictest0-21swapper/311:25:123
253507299280,27cyclictest0-21swapper/308:50:123
253507299280,26cyclictest0-21swapper/310:45:133
253507299280,26cyclictest0-21swapper/309:55:133
2535070992826,1cyclictest0-21swapper/209:14:592
2535070992825,2cyclictest0-21swapper/209:50:582
2535070992825,2cyclictest0-21swapper/208:15:592
2535070992825,2cyclictest0-21swapper/208:08:592
2535070992819,7cyclictest0-21swapper/212:21:592
253507099280,26cyclictest0-21swapper/207:55:592
4577091270,7ptp4l441ktimers/310:59:553
4577091270,6ptp4l441ktimers/310:15:013
4577091270,6ptp4l441ktimers/310:15:003
2535072992725,1cyclictest0-21swapper/312:05:123
2535072992724,2cyclictest0-21swapper/311:45:123
253507299270,26cyclictest0-21swapper/309:15:123
253507299270,20cyclictest0-21swapper/308:29:003
253507299270,1cyclictest0-21swapper/311:02:593
2535070992724,2cyclictest0-21swapper/210:29:552
2535070992724,2cyclictest0-21swapper/208:47:592
2535070992721,5cyclictest0-21swapper/211:01:592
253507099270,25cyclictest0-21swapper/209:34:542
4577091260,6ptp4l61490irq/134-eno1-TxRx-011:39:553
4577091260,6ptp4l61490irq/134-eno1-TxRx-009:29:593
4577091260,5ptp4l441ktimers/307:40:003
2535072992624,1cyclictest0-21swapper/309:10:143
2535070992623,2cyclictest0-21swapper/209:29:562
253507099260,24cyclictest0-21swapper/208:01:592
4577091250,5ptp4l61490irq/134-eno1-TxRx-010:45:003
4577091250,5ptp4l441ktimers/310:29:553
4577091250,5ptp4l441ktimers/307:29:563
2535072992523,1cyclictest0-21swapper/312:13:593
2535070992521,2cyclictest0-21swapper/208:43:002
2535070992421,2cyclictest0-21swapper/207:31:592
2535070992320,2cyclictest0-21swapper/210:11:002
2535070992320,2cyclictest0-21swapper/210:11:002
2535070992320,2cyclictest0-21swapper/207:14:002
231999230,14rtkit-daemon2304-21lightdm-gtk-gre07:08:260
2535070992119,1cyclictest0-21swapper/212:14:592
2535070991916,2cyclictest0-21swapper/210:39:562
2535070991916,2cyclictest0-21swapper/210:39:552
2535070991715,1cyclictest0-21swapper/212:35:592
2535070991613,2cyclictest0-21swapper/211:43:592
253507099129,2cyclictest0-21swapper/211:09:552
2535070991210,1cyclictest0-21swapper/208:27:002
253507099103,2cyclictest0-21swapper/210:06:142
253507099102,2cyclictest0-21swapper/209:24:402
25350709930,2cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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