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2026-07-13 - 22:24
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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 Mon Jul 13, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
302207299118106,10cyclictest1213033-21systemd-journal07:40:000
302207499115106,6cyclictest3117545-21apt-get12:05:161
302207299111104,4cyclictest3020653-21kworker/u8:2+flush-179:007:15:160
302207299110103,5cyclictest3102479-21kworker/u8:2+flush-179:011:40:170
30220729910797,7cyclictest3107464-21latency_hist11:35:010
302207299106100,4cyclictest3062339-21kworker/u8:2+flush-179:009:20:170
30220749910496,5cyclictest3107440-21kworker/u8:3+events_unbound11:45:011
30220729910292,7cyclictest3081464-21latency_hist10:15:010
30220729910192,7cyclictest1213033-21systemd-journal07:15:000
30220749910090,7cyclictest3091290-21latency_hist10:45:011
30220749910089,9cyclictest3073713-21apt-get09:50:111
3022072999792,3cyclictest3055711-21kworker/u8:3+flush-179:009:30:250
3022072999792,3cyclictest3031486-21kworker/u8:1+flush-179:008:10:150
3022072999689,5cyclictest3073501-21kworker/u8:2+flush-179:010:15:260
3022072999683,10cyclictest1213033-21systemd-journal12:10:160
3022072999488,4cyclictest3099907-21kworker/u8:1+flush-179:011:20:170
3022072999083,5cyclictest3081455-21kworker/u8:1+flush-179:010:30:150
3022078998955,30cyclictest0-21swapper/308:08:593
3022072998983,4cyclictest3047699-21kworker/u8:0+flush-179:008:50:250
3022072998981,6cyclictest3086399-21kworker/u8:3+flush-179:010:35:220
3022074998877,8cyclictest510-21rs:main1
3022074998876,9cyclictest1213033-21systemd-journal10:55:161
3022074998779,5cyclictest3099246-21latency_hist11:10:021
3022072998777,7cyclictest3092179-21kworker/u8:1+flush-179:010:45:230
3022074998658,19cyclictest3052278-21http08:45:001
3022074998576,7cyclictest3052260-21apt-get08:45:021
3022072998576,6cyclictest510-21rs:main0
3022072998575,7cyclictest3099907-21kworker/u8:1+flush-179:011:10:200
3022072998479,3cyclictest3068710-21kworker/u8:0+flush-179:010:00:180
3022072998452,1cyclictest0-21swapper/008:08:590
3022074998373,7cyclictest3038780-21kworker/u8:2+flush-179:008:25:171
3022074998276,4cyclictest3033392-21apt-get07:45:121
3022074998273,7cyclictest3058874-21latency_hist09:05:011
3022072998274,6cyclictest3038780-21kworker/u8:2+flush-179:008:25:230
3022072998271,7cyclictest510-21rs:main0
3022078998174,5cyclictest3102453-21turbostat11:20:003
3022074998172,6cyclictest3042915-21kworker/u8:3+flush-179:008:35:001
302207499811,77cyclictest1-21systemd07:40:001
3022072998175,4cyclictest3099907-21kworker/u8:1+flush-179:011:55:210
3022072998174,5cyclictest3099907-21kworker/u8:1+flush-179:011:40:000
3022072998172,7cyclictest3052260-21apt-get08:45:000
3022074997970,6cyclictest3005056-21kworker/u8:1+flush-179:007:30:221
3022074997970,6cyclictest3005056-21kworker/u8:1+flush-179:007:30:221
3022074997958,19cyclictest3099907-21kworker/u8:1+flush-179:011:55:171
3022074997870,6cyclictest3116365-21kworker/u8:2+flush-179:012:30:181
3022074997870,6cyclictest3022017-21kworker/u8:3+flush-179:007:20:141
3022072997872,4cyclictest3097649-21kworker/u8:0+events_unbound11:05:240
3022072997871,5cyclictest3065547-21kworker/u8:1+flush-179:009:50:220
3022072997870,6cyclictest3047699-21kworker/u8:0+flush-179:008:55:230
3022072997867,8cyclictest3055711-21kworker/u8:3+flush-179:009:05:200
3022074997772,3cyclictest3102411-21kworker/u8:0+flush-179:011:25:011
3022074997770,2cyclictest3099907-21kworker/u8:1+flush-179:011:45:241
3022072997768,7cyclictest3038780-21kworker/u8:2+flush-179:008:15:240
3022072997768,7cyclictest3038780-21kworker/u8:2+flush-179:008:15:240
3022074997667,6cyclictest3028339-21kworker/u8:0+flush-179:008:00:171
3022074997666,7cyclictest3076687-21kworker/u8:3+flush-179:010:05:221
3022072997567,6cyclictest3036564-21apt-get07:55:130
3022072997567,5cyclictest3028339-21kworker/u8:0+flush-179:008:00:240
3022074997468,4cyclictest3073501-21kworker/u8:2+flush-179:010:10:161
3022074997459,14cyclictest3005056-21kworker/u8:1+flush-179:007:11:121
3022072997469,3cyclictest3073501-21kworker/u8:2+flush-179:010:30:010
3022072997468,4cyclictest3081455-21kworker/u8:1+flush-179:010:20:190
3022074997365,6cyclictest3081455-21kworker/u8:1+flush-179:010:25:221
3022074997365,5cyclictest3049076-21kworker/u8:1+flush-179:008:35:141
3022074997364,6cyclictest510-21rs:main1
3022074997363,7cyclictest3081455-21kworker/u8:1+flush-179:010:30:211
3022074997265,6cyclictest3107440-21kworker/u8:3+flush-179:011:35:251
3022072997265,4cyclictest3028339-21kworker/u8:0+flush-179:007:40:220
3022074997163,6cyclictest3081720-21apt-get10:15:141
3022074997163,5cyclictest3116365-21kworker/u8:2+events_unbound12:15:251
3022074997160,9cyclictest1213033-21systemd-journal10:24:591
3022074997157,8cyclictest3047699-21kworker/u8:0+events_unbound09:05:031
3022072997064,4cyclictest3055711-21kworker/u8:3+events_unbound09:15:160
3022072997063,5cyclictest3126832-21latency_hist12:35:010
3022072997062,5cyclictest1213033-21systemd-journal08:20:160
3022074996962,5cyclictest3052233-21kworker/u8:2+flush-179:009:00:011
3022074996962,5cyclictest3038780-21kworker/u8:2+events_unbound08:15:011
3022074996960,7cyclictest3059798-21kworker/u8:1+flush-179:009:10:231
3022074996960,7cyclictest3028339-21kworker/u8:0+flush-179:007:50:261
3022074996760,5cyclictest3099907-21kworker/u8:1+events_unbound11:15:001
3022074996760,5cyclictest3055711-21kworker/u8:3+flush-179:009:15:181
3022072996762,4cyclictest3047699-21kworker/u8:0+flush-179:008:30:230
3022072996761,5cyclictest3099907-21kworker/u8:1+events_unbound12:05:000
3022074996660,4cyclictest3116365-21kworker/u8:2+flush-179:012:00:231
3022074996647,16cyclictest1213033-21systemd-journal11:20:001
3022072996660,4cyclictest3005056-21kworker/u8:1+flush-179:007:25:240
3022074996559,4cyclictest3028339-21kworker/u8:0+flush-179:007:40:231
3022074996557,6cyclictest3092179-21kworker/u8:1+flush-179:011:00:241
3022072996559,4cyclictest3055711-21kworker/u8:3+flush-179:009:40:230
3022074996456,6cyclictest3112254-21apt-get11:50:031
3022074996255,5cyclictest3125245-21latency_hist12:30:011
3022074996159,1cyclictest3055711-21kworker/u8:3+events_unbound09:35:161
3022072996156,4cyclictest3028339-21kworker/u8:0+events_unbound07:50:240
3022072996055,4cyclictest3076687-21kworker/u8:3+events_unbound10:05:180
3022072996051,6cyclictest3105875-21latency_hist11:30:020
3022072996049,9cyclictest3072127-21apt-get09:45:120
3022078995952,5cyclictest3076652-21turbostat09:59:593
3022074995953,4cyclictest3073501-21kworker/u8:2+flush-179:010:00:271
3022072995952,5cyclictest3022017-21kworker/u8:3+flush-179:007:30:170
3022072995952,5cyclictest3022017-21kworker/u8:3+flush-179:007:30:170
3022078995855,2cyclictest0-21swapper/311:00:583
3022072995852,5cyclictest3049076-21kworker/u8:1+flush-179:008:35:210
3022072995752,4cyclictest3099907-21kworker/u8:1+events_unbound11:15:240
3022072995752,3cyclictest714-21Xorg11:00:580
3022074995651,4cyclictest1-21systemd09:50:011
3022072995650,4cyclictest3076648-21latency_hist10:00:000
3022074995548,4cyclictest3123658-21latency_hist12:25:011
3022074995245,5cyclictest3104544-21apt-get11:25:111
3022072995247,4cyclictest3116365-21kworker/u8:2+events_unbound12:25:140
3022072995244,7cyclictest3086399-21kworker/u8:3+flush-179:010:55:130
3022074995140,7cyclictest3038780-21kworker/u8:2+flush-179:008:20:211
3022072995147,3cyclictest3022017-21kworker/u8:3+events_unbound07:20:210
3022072995143,5cyclictest3086399-21kworker/u8:3+events_unbound10:50:200
3022074995043,5cyclictest3031486-21kworker/u8:1+events_unbound07:55:261
3022072995045,4cyclictest3099907-21kworker/u8:1+flush-179:011:50:230
3022072995044,5cyclictest3122034-21kworker/u8:1+flush-179:012:20:210
3022072995041,6cyclictest3047699-21kworker/u8:0+flush-179:009:00:200
3022072994943,4cyclictest3059798-21kworker/u8:1+events_unbound09:10:140
3022072994938,8cyclictest3055711-21kworker/u8:3+flush-179:009:35:140
4577091480,13ptp4l441ktimers/307:09:563
3022074994842,5cyclictest3116365-21kworker/u8:2+events_unbound12:15:011
3022074994841,5cyclictest3044289-21latency_hist08:20:021
3022074994841,5cyclictest3044289-21latency_hist08:20:021
3022074994840,7cyclictest3047699-21kworker/u8:0+flush-179:008:50:211
3022072994843,4cyclictest3086399-21kworker/u8:3+flush-179:010:40:200
302207899470,45cyclictest3083063-21turbostat10:20:003
3022078994644,1cyclictest0-21swapper/309:01:593
3022074994638,7cyclictest3128410-21kworker/u8:2+flush-179:012:40:011
3022072994642,3cyclictest3099907-21kworker/u8:1+flush-179:012:05:300
3022074994541,3cyclictest484-21dbus-daemon07:20:011
3022074994538,5cyclictest3094463-21latency_hist10:55:011
3022074994523,20cyclictest0-21swapper/109:30:141
3022072994539,5cyclictest3107440-21kworker/u8:3+flush-179:011:45:150
3022074994437,5cyclictest3031486-21kworker/u8:1+flush-179:008:05:211
302207299441,41cyclictest1-21systemd12:15:410
302207799430,41cyclictest0-21swapper/209:15:582
3022072994336,5cyclictest3123645-21kworker/u8:0+flush-179:012:35:260
302207899420,40cyclictest3029925-21turbostat07:35:013
302207899420,40cyclictest3029925-21turbostat07:35:013
3022078994139,1cyclictest0-21swapper/307:42:593
3022078994134,5cyclictest3065510-21turbostat09:25:013
302207899400,39cyclictest3128438-21turbostat12:40:003
302207499405,18cyclictest3107466-21munin-run11:35:001
302207899390,38cyclictest3105893-21turbostat11:30:013
3022077993935,2cyclictest0-21swapper/208:24:562
302207799390,37cyclictest0-21swapper/207:30:592
302207799390,37cyclictest0-21swapper/207:30:592
3022074993935,3cyclictest3092913-21systemd-run10:50:001
3022074993934,4cyclictest484-21dbus-daemon07:30:011
3022074993934,4cyclictest3088107-21turbostat10:39:551
3022072993928,6cyclictest321-21hwrng07:45:590
3022078993836,1cyclictest0-21swapper/310:57:003
302207899380,3cyclictest3057278-21turbostat09:00:013
302207799380,36cyclictest0-21swapper/210:19:592
302207799380,36cyclictest0-21swapper/207:36:002
302207799380,35cyclictest0-21swapper/212:23:592
3022078993731,5cyclictest3073466-21turbostat09:50:013
302207899370,36cyclictest0-21swapper/308:41:593
3022077993734,2cyclictest0-21swapper/212:11:592
3022077993734,2cyclictest0-21swapper/211:04:002
302207799370,35cyclictest0-21swapper/210:02:592
302207899360,35cyclictest0-21swapper/311:43:003
302207899360,35cyclictest0-21swapper/309:07:593
302207899360,35cyclictest0-21swapper/307:58:593
302207799365,2cyclictest0-21swapper/208:49:002
3022077993634,1cyclictest0-21swapper/208:09:592
3022077993633,2cyclictest0-21swapper/211:25:592
302207799360,29cyclictest0-21swapper/209:29:592
302207799360,1cyclictest0-21swapper/211:59:552
302207799360,1cyclictest0-21swapper/208:11:592
302207799360,1cyclictest0-21swapper/207:28:592
3022078993533,1cyclictest0-21swapper/308:16:593
3022078993533,1cyclictest0-21swapper/308:16:593
302207799350,1cyclictest0-21swapper/209:09:592
3022078993432,1cyclictest0-21swapper/312:03:593
3022078993430,3cyclictest3031546-21turbostat07:40:003
3022077993432,1cyclictest0-21swapper/210:09:592
3022077993431,2cyclictest0-21swapper/212:33:592
3022077993431,2cyclictest0-21swapper/207:15:592
3022078993330,2cyclictest0-21swapper/311:51:593
3022077993330,2cyclictest0-21swapper/210:42:592
3022077993330,2cyclictest0-21swapper/209:32:582
3022078993229,2cyclictest0-21swapper/310:10:593
3022077993229,2cyclictest0-21swapper/212:39:592
302207799320,30cyclictest0-21swapper/211:16:592
3022078993129,1cyclictest0-21swapper/311:09:593
3022077993128,2cyclictest0-21swapper/210:34:592
3022077993127,2cyclictest0-21swapper/207:48:592
302207799310,23cyclictest0-21swapper/210:35:122
302207499311,29cyclictest0-21swapper/109:25:141
3022078993028,1cyclictest0-21swapper/312:12:593
3022078993028,1cyclictest0-21swapper/308:21:593
3022078993028,1cyclictest0-21swapper/307:20:003
3022078993027,2cyclictest0-21swapper/311:39:593
3022077993027,2cyclictest0-21swapper/211:39:552
3022077993027,2cyclictest0-21swapper/210:25:142
3022077993027,2cyclictest0-21swapper/209:58:592
3022077993027,2cyclictest0-21swapper/208:58:582
302207799300,28cyclictest0-21swapper/211:20:142
302207799300,28cyclictest0-21swapper/210:50:122
302207799300,28cyclictest0-21swapper/207:10:132
4577091290,7ptp4l61490irq/134-eno1-TxRx-009:45:003
4577091290,7ptp4l441ktimers/308:35:013
4577091290,6ptp4l441ktimers/312:35:003
4577091290,6ptp4l441ktimers/310:55:003
4577091290,6ptp4l441ktimers/310:30:003
4577091290,6ptp4l441ktimers/307:15:003
3022078992927,1cyclictest0-21swapper/311:58:593
3022078992927,1cyclictest0-21swapper/310:46:583
3022078992927,1cyclictest0-21swapper/309:34:563
3022078992927,1cyclictest0-21swapper/307:51:583
3022078992926,2cyclictest0-21swapper/309:10:133
3022078992926,2cyclictest0-21swapper/307:25:153
3022078992924,2cyclictest0-21swapper/308:50:133
302207899290,28cyclictest0-21swapper/311:45:153
302207899290,28cyclictest0-21swapper/310:00:133
302207899290,28cyclictest0-21swapper/309:35:133
302207899290,27cyclictest0-21swapper/311:10:113
302207899290,27cyclictest0-21swapper/309:50:133
302207899290,1cyclictest0-21swapper/308:45:153
3022077992926,2cyclictest0-21swapper/211:11:592
3022077992926,2cyclictest0-21swapper/208:50:142
3022077992926,2cyclictest0-21swapper/208:35:132
3022077992926,2cyclictest0-21swapper/207:42:582
302207799290,2cyclictest0-21swapper/212:00:122
302207799290,27cyclictest0-21swapper/212:15:142
302207799290,27cyclictest0-21swapper/211:50:022
302207799290,27cyclictest0-21swapper/208:40:112
302207799290,27cyclictest0-21swapper/208:31:592
302207799290,27cyclictest0-21swapper/207:50:152
4577091280,6ptp4l441ktimers/312:29:553
4577091280,6ptp4l441ktimers/308:40:003
4577091280,5ptp4l441ktimers/310:44:573
3022078992826,1cyclictest0-21swapper/310:40:003
3022078992826,1cyclictest0-21swapper/308:25:143
3022078992825,2cyclictest0-21swapper/308:00:153
302207899280,27cyclictest0-21swapper/307:47:593
302207899280,27cyclictest0-21swapper/307:20:133
302207899280,26cyclictest0-21swapper/312:05:173
3022077992825,2cyclictest0-21swapper/212:25:122
3022077992825,2cyclictest0-21swapper/210:57:592
3022077992825,2cyclictest0-21swapper/209:20:142
3022077992825,2cyclictest0-21swapper/208:04:002
302207799280,26cyclictest0-21swapper/211:47:592
302207799280,26cyclictest0-21swapper/211:40:132
4577091270,6ptp4l61490irq/134-eno1-TxRx-012:19:563
4577091270,6ptp4l61490irq/134-eno1-TxRx-010:10:013
4577091270,5ptp4l441ktimers/311:35:013
4577091270,5ptp4l441ktimers/310:24:573
3022078992725,1cyclictest0-21swapper/312:24:553
302207899270,26cyclictest0-21swapper/309:20:003
302207899270,26cyclictest0-21swapper/308:12:593
3022077992724,2cyclictest0-21swapper/209:40:592
302207799270,25cyclictest0-21swapper/209:02:592
4577091260,5ptp4l61490irq/134-eno1-TxRx-009:29:553
4577091260,5ptp4l441ktimers/310:34:553
302207799260,25cyclictest0-21swapper/208:27:582
302207799260,24cyclictest0-21swapper/209:37:002
4577091250,4ptp4l61490irq/134-eno1-TxRx-011:24:553
3022077992522,2cyclictest0-21swapper/207:20:592
3022074992517,4cyclictest3055711-21kworker/u8:3+flush-179:009:24:211
3022074992417,5cyclictest3021932-21latency_hist07:10:021
3022077992320,2cyclictest0-21swapper/210:21:592
3022077992319,2cyclictest0-21swapper/210:11:002
3022077992219,2cyclictest0-21swapper/211:31:592
3022077992219,2cyclictest0-21swapper/207:55:582
3022077992119,1cyclictest0-21swapper/209:49:592
3022077992118,2cyclictest0-21swapper/209:13:592
3022072992015,3cyclictest0-21swapper/007:10:020
3022077991917,1cyclictest0-21swapper/212:09:592
3022077991917,1cyclictest0-21swapper/210:45:592
3022077991714,2cyclictest0-21swapper/211:08:592
3022077991714,2cyclictest0-21swapper/208:16:592
3022077991714,2cyclictest0-21swapper/208:16:592
302207799107,2cyclictest0-21swapper/209:52:322
30220779930,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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