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2026-03-23 - 20:05
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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 Mar 23, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
199485299116107,7cyclictest266-21systemd-journal11:40:001
1994849999488,4cyclictest2002423-21kworker/u8:0+events_unbound07:40:250
1994852999283,7cyclictest2043556-21latency_hist09:40:001
1994849999182,7cyclictest2038816-21kworker/u8:2+events_unbound09:40:230
1994849999181,7cyclictest2099744-21latency_hist12:35:010
1994849998984,4cyclictest2054965-21kworker/u8:2+events_unbound10:15:000
1994849998977,9cyclictest266-21systemd-journal10:35:000
1994849998772,5cyclictest1973266-21kworker/u8:0+events_unbound07:15:150
1994852998374,7cyclictest2072441-21latency_hist11:10:021
1994852998374,7cyclictest2072441-21latency_hist11:10:011
1994849998277,4cyclictest2068708-21kworker/u8:0+flush-179:011:05:240
1994849998277,4cyclictest2068708-21kworker/u8:0+flush-179:011:05:240
1994849998177,3cyclictest2029196-21kworker/u8:2+flush-179:009:05:010
1994849998175,4cyclictest2068708-21kworker/u8:0+flush-179:011:20:210
1994849998174,5cyclictest2068708-21kworker/u8:0+events_unbound11:00:240
1994852998072,6cyclictest2014157-21kworker/u8:3+flush-179:008:45:011
1994849998076,3cyclictest2032442-21kworker/u8:0+flush-179:009:15:260
1994849998072,5cyclictest2059699-21kworker/u8:1+events_unbound10:35:220
1994849997975,3cyclictest2074329-21kworker/u8:2+flush-179:011:40:150
1994849997975,3cyclictest2059699-21kworker/u8:1+flush-179:010:40:210
1994849997974,4cyclictest2062952-21kworker/u8:2+events_unbound10:50:230
1994849997671,4cyclictest2092457-21kworker/u8:2+events_unbound12:15:240
1994849997671,3cyclictest2046693-21kworker/u8:0+flush-179:010:00:210
1994849997670,5cyclictest2070836-21kworker/u8:1+events_unbound11:10:240
1994849997664,4cyclictest2077889-21kworker/u8:1+events_unbound11:45:230
1994852997563,8cyclictest266-21systemd-journal09:15:271
1994849997571,3cyclictest2043518-21kworker/u8:1+flush-179:009:55:220
1994849997463,5cyclictest2074329-21kworker/u8:2+events_unbound11:50:260
1994849997368,4cyclictest2009942-21kworker/u8:0+events_unbound08:00:280
1994849997368,4cyclictest2002423-21kworker/u8:0+flush-179:007:45:200
1994849997268,3cyclictest2000319-21kworker/u8:3+flush-179:007:25:210
1994849997262,4cyclictest2054965-21kworker/u8:2+events_unbound10:20:260
1994849997166,4cyclictest2077889-21kworker/u8:1+events_unbound11:25:250
1994849997164,5cyclictest2027096-21kworker/u8:0+events_unbound08:50:210
1994849997065,4cyclictest2101318-21kworker/u8:2+flush-179:012:39:550
1994849996965,3cyclictest2023999-21kworker/u8:1+events_unbound08:45:240
1994849996964,4cyclictest2014157-21kworker/u8:3+flush-179:008:24:560
1994849996964,4cyclictest2009942-21kworker/u8:0+flush-179:008:15:260
1994849996964,4cyclictest2009942-21kworker/u8:0+flush-179:008:15:250
1994849996956,11cyclictest2025785-21latency_hist08:45:010
1994849996863,4cyclictest2046693-21kworker/u8:0+flush-179:009:54:560
1994849996862,4cyclictest2092457-21kworker/u8:2+flush-179:012:20:190
1994849996855,4cyclictest2035613-21kworker/u8:3+events_unbound09:25:220
1994849996763,3cyclictest1997972-21kworker/u8:1+flush-179:007:24:550
1994849996762,4cyclictest2000319-21kworker/u8:3+flush-179:007:30:280
1994849996759,6cyclictest2087272-21apt-get11:55:110
1994849996759,6cyclictest2087272-21apt-get11:55:100
1994852996658,5cyclictest2007755-21latency_hist07:50:011
1994849996662,3cyclictest2009942-21kworker/u8:0+flush-179:008:05:290
1994849996661,4cyclictest2068708-21kworker/u8:0+flush-179:011:15:200
1994849996661,4cyclictest2007788-21kworker/u8:2+flush-179:007:50:210
1994849996562,2cyclictest2046693-21kworker/u8:0+flush-179:010:25:230
1994849996561,3cyclictest2082305-21kworker/u8:3+flush-179:012:25:200
1994849996561,3cyclictest2029196-21kworker/u8:2+flush-179:009:05:210
1994849996561,3cyclictest2029196-21kworker/u8:2+flush-179:009:05:200
1994849996557,6cyclictest2021291-21diskstats08:30:150
1994852996456,6cyclictest266-21systemd-journal08:55:011
1994849996458,4cyclictest2023999-21kworker/u8:1+flush-179:008:55:220
1994849996456,7cyclictest1994796-21kworker/u8:2+flush-179:007:10:180
1994849996454,4cyclictest2082305-21kworker/u8:3+events_unbound12:05:210
1994852996356,5cyclictest2023999-21kworker/u8:1+flush-179:008:55:261
1994849996359,3cyclictest2082305-21kworker/u8:3+flush-179:012:04:560
1994849996353,4cyclictest2068708-21kworker/u8:0+events_unbound10:55:240
1994849996257,4cyclictest2082305-21kworker/u8:3+flush-179:012:10:250
1994849996253,7cyclictest2035577-21latency_hist09:15:010
1994852996151,6cyclictest2043518-21kworker/u8:1+flush-179:009:55:211
1994849996151,4cyclictest2077889-21kworker/u8:1+events_unbound11:35:200
1994852995954,3cyclictest2046693-21kworker/u8:0+events_unbound10:25:251
1994852995944,12cyclictest2023933-21apt-get08:40:011
1994849995955,3cyclictest2022313-21kworker/u8:0+flush-179:008:35:250
1994849995954,4cyclictest2062952-21kworker/u8:2+flush-179:010:45:200
1994849995854,3cyclictest2032442-21kworker/u8:0+flush-179:009:24:550
1994849995854,3cyclictest2009942-21kworker/u8:0+events_unbound07:55:260
1994852995750,5cyclictest2095244-21apt-get12:20:101
1994852995749,6cyclictest2055189-21apt-get10:15:121
1994852995749,6cyclictest2006205-21kworker/u8:1+events_unbound08:00:001
1994849995752,4cyclictest2074329-21kworker/u8:2+flush-179:011:34:550
199485299561,31cyclictest908065-21snmpd09:45:131
1994849995649,5cyclictest2056526-21latency_hist10:20:010
1994852995548,5cyclictest2088610-21latency_hist12:00:021
1994852995548,5cyclictest2088610-21latency_hist12:00:011
1994852995547,5cyclictest2054965-21kworker/u8:2+flush-179:010:20:231
1994852995447,5cyclictest2059699-21kworker/u8:1+events_unbound10:40:221
1994852995446,6cyclictest2079065-21latency_hist11:30:011
1994852995441,10cyclictest2019197-21kworker/u8:2+flush-179:008:30:211
1994852995438,13cyclictest2015720-21apt-get08:15:011
1994852995349,2cyclictest2082305-21kworker/u8:3+events_unbound12:00:241
1994852995343,7cyclictest2007788-21kworker/u8:2+flush-179:007:50:211
1994849995349,3cyclictest2043518-21kworker/u8:1+events_unbound10:05:200
1994852995242,8cyclictest2000039-21apt-get07:25:121
1994852995242,7cyclictest2074329-21kworker/u8:2+flush-179:011:50:241
1994852995230,20cyclictest2048606-21systemd-run09:55:001
1994849995243,7cyclictest2040900-21diskstats09:30:150
1994854995148,2cyclictest0-21swapper/210:37:592
1994849995147,3cyclictest2043518-21kworker/u8:1+flush-179:009:45:160
1994852995042,6cyclictest2083846-21latency_hist11:45:011
1994852995041,6cyclictest2000319-21kworker/u8:3+flush-179:007:30:221
1994852995038,8cyclictest2095032-21kworker/u8:1+flush-179:012:35:201
4577091490,13ptp4l61490irq/134-eno1-TxRx-007:10:003
1994852994943,3cyclictest2014157-21kworker/u8:3+events_unbound08:40:241
199485299481,45cyclictest0-21swapper/107:10:121
1994849994843,4cyclictest2019144-21kworker/u8:1+flush-179:008:25:170
1994852994742,4cyclictest266-21systemd-journal12:14:271
1994852994741,4cyclictest2032442-21kworker/u8:0+flush-179:009:29:561
1994852994738,7cyclictest2033992-21latency_hist09:10:011
1994852994738,7cyclictest2033992-21latency_hist09:10:001
1994852994727,3cyclictest2077518-21systemd-run11:25:011
1994852994641,3cyclictest2091831-21systemd-run12:10:001
1994852994638,6cyclictest2069524-21apt-get11:00:101
1994852994637,6cyclictest2034230-21kworker/u8:1+flush-179:009:10:191
1994852994624,5cyclictest2062754-21unixbench-2d10:35:281
199485299460,4cyclictest714-21Xorg09:21:591
1994849994638,3cyclictest2009942-21kworker/u8:0+events_unbound08:10:210
1994849994537,6cyclictest2002423-21kworker/u8:0+flush-179:007:35:230
1994852994441,2cyclictest714-21Xorg07:23:591
199485899430,42cyclictest2023944-21turbostat08:40:003
1994852994337,4cyclictest2077889-21kworker/u8:1+flush-179:011:45:261
1994852994336,5cyclictest2029196-21kworker/u8:2+events_unbound09:05:011
199485899420,41cyclictest0-21swapper/307:22:593
1994852994236,4cyclictest2002423-21kworker/u8:0+flush-179:007:40:221
1994849994237,4cyclictest2032442-21kworker/u8:0+events_unbound09:35:180
1994852994136,4cyclictest2020787-21systemd-run08:30:011
1994854994036,2cyclictest0-21swapper/207:18:592
1994852994035,4cyclictest2092457-21kworker/u8:2+flush-179:012:15:261
1994852994033,5cyclictest2046693-21kworker/u8:0+flush-179:010:00:231
1994858993937,1cyclictest0-21swapper/308:32:003
1994858993934,4cyclictest2085447-21turbostat11:50:003
1994852993935,3cyclictest2082305-21kworker/u8:3+flush-179:012:27:001
1994852993933,4cyclictest2075934-21systemd-run11:20:001
1994852993929,8cyclictest266-21systemd-journal07:18:271
1994852993928,9cyclictest2052307-21diskstats10:05:171
199485899380,1cyclictest0-21swapper/311:41:593
1994852993833,3cyclictest1-21systemd08:05:011
1994858993735,1cyclictest0-21swapper/311:08:593
1994858993735,1cyclictest0-21swapper/311:08:593
1994854993734,2cyclictest0-21swapper/207:51:592
1994854993734,2cyclictest0-21swapper/207:44:552
199485499370,35cyclictest0-21swapper/210:32:592
199485499370,35cyclictest0-21swapper/207:45:592
1994852993731,5cyclictest2043544-21turbostat09:44:551
1994852993729,5cyclictest2069305-21systemd-run11:00:001
1994852993728,7cyclictest2059699-21kworker/u8:1+flush-179:010:30:211
1994858993634,1cyclictest0-21swapper/312:24:553
1994858993634,1cyclictest0-21swapper/311:36:593
1994858993634,1cyclictest0-21swapper/310:20:593
1994858993633,2cyclictest0-21swapper/307:47:583
199485899360,35cyclictest0-21swapper/309:49:593
199485899360,35cyclictest0-21swapper/309:02:593
199485899360,35cyclictest0-21swapper/307:14:593
199485899360,1cyclictest0-21swapper/310:30:583
199485499360,1cyclictest0-21swapper/210:15:012
1994852993632,3cyclictest2004568-21cron07:40:001
199485299362,31cyclictest2017832-21apt-get08:20:131
199485299360,34cyclictest714-21Xorg11:13:581
1994858993533,1cyclictest0-21swapper/310:45:583
1994858993529,5cyclictest2012543-21turbostat08:05:003
1994854993532,2cyclictest0-21swapper/208:18:002
1994854993532,2cyclictest0-21swapper/208:18:002
1994852993530,4cyclictest2062952-21kworker/u8:2+events_unbound10:50:011
1994852993525,6cyclictest0-21swapper/109:31:591
1994858993427,5cyclictest2054940-21turbostat10:15:003
199485499343,29cyclictest0-21swapper/207:25:022
1994854993431,2cyclictest0-21swapper/212:32:592
1994854993431,2cyclictest0-21swapper/212:08:592
1994852993430,2cyclictest714-21Xorg08:09:591
1994858993330,2cyclictest0-21swapper/311:34:593
1994854993331,1cyclictest0-21swapper/209:55:002
1994854993330,2cyclictest0-21swapper/212:20:122
1994854993330,2cyclictest0-21swapper/212:11:582
1994854993330,2cyclictest0-21swapper/211:40:132
1994854993330,2cyclictest0-21swapper/209:35:132
1994854993330,2cyclictest0-21swapper/207:10:592
1994858993230,1cyclictest0-21swapper/309:43:593
199485499323,27cyclictest0-21swapper/207:30:132
1994854993229,2cyclictest0-21swapper/210:42:592
1994854993229,2cyclictest0-21swapper/209:45:122
1994852993224,7cyclictest2015720-21apt-get08:15:041
1994852993224,7cyclictest2015720-21apt-get08:15:031
199485299321,29cyclictest1-21systemd12:33:001
199485299321,29cyclictest0-21swapper/110:50:131
1994858993129,1cyclictest0-21swapper/310:37:593
199485499316,2cyclictest0-21swapper/208:00:002
1994854993128,2cyclictest0-21swapper/212:27:592
1994854993128,2cyclictest0-21swapper/212:00:132
1994854993128,2cyclictest0-21swapper/211:39:552
1994854993128,2cyclictest0-21swapper/208:44:552
1994854993128,2cyclictest0-21swapper/208:04:552
199485499310,29cyclictest0-21swapper/210:15:132
1994852993126,4cyclictest714-21Xorg11:32:591
199485299310,29cyclictest714-21Xorg10:13:591
1994858993028,1cyclictest0-21swapper/309:22:583
199485899300,29cyclictest0-21swapper/310:26:003
1994854993028,1cyclictest0-21swapper/211:30:002
1994854993027,2cyclictest0-21swapper/211:08:002
1994854993027,2cyclictest0-21swapper/211:07:592
199485499300,2cyclictest0-21swapper/209:05:142
199485499300,2cyclictest0-21swapper/209:05:142
199485499300,2cyclictest0-21swapper/209:03:582
199485499300,28cyclictest0-21swapper/210:05:152
1994858992927,1cyclictest0-21swapper/307:50:133
1994858992926,2cyclictest0-21swapper/310:05:163
199485899290,28cyclictest0-21swapper/308:15:033
199485899290,28cyclictest0-21swapper/308:15:033
199485899290,27cyclictest0-21swapper/308:45:013
1994854992926,2cyclictest0-21swapper/211:15:132
1994854992926,2cyclictest0-21swapper/209:57:002
1994854992926,2cyclictest0-21swapper/209:15:152
1994854992926,2cyclictest0-21swapper/208:11:582
199485499290,2cyclictest0-21swapper/208:20:132
199485499290,27cyclictest0-21swapper/212:15:132
199485499290,27cyclictest0-21swapper/210:55:132
199485499290,27cyclictest0-21swapper/209:10:122
199485499290,27cyclictest0-21swapper/208:45:022
199485499290,27cyclictest0-21swapper/208:30:122
199485499290,27cyclictest0-21swapper/207:35:142
1994858992826,1cyclictest0-21swapper/309:35:133
1994858992825,2cyclictest0-21swapper/311:15:123
1994858992825,2cyclictest0-21swapper/310:15:123
1994858992825,2cyclictest0-21swapper/308:20:133
199485899280,27cyclictest0-21swapper/312:15:133
199485899280,27cyclictest0-21swapper/312:05:113
199485899280,27cyclictest0-21swapper/311:10:033
199485899280,26cyclictest0-21swapper/310:55:133
199485899280,26cyclictest0-21swapper/307:25:023
199485899280,1cyclictest0-21swapper/307:30:133
1994854992825,2cyclictest0-21swapper/211:22:592
199485499280,26cyclictest0-21swapper/211:55:112
199485499280,26cyclictest0-21swapper/211:55:112
199485499280,26cyclictest0-21swapper/211:10:032
199485499280,21cyclictest0-21swapper/208:05:142
1994858992725,1cyclictest0-21swapper/312:10:123
1994858992725,1cyclictest0-21swapper/309:55:113
1994858992725,1cyclictest0-21swapper/309:05:143
1994858992725,1cyclictest0-21swapper/309:05:133
1994858992725,1cyclictest0-21swapper/308:52:583
1994858992725,1cyclictest0-21swapper/307:35:143
199485899270,26cyclictest0-21swapper/309:15:153
199485899270,26cyclictest0-21swapper/308:05:133
199485899270,26cyclictest0-21swapper/307:18:593
1994854992724,2cyclictest0-21swapper/210:23:592
199485499270,24cyclictest0-21swapper/212:36:592
199485499270,1cyclictest0-21swapper/208:35:142
4577091260,5ptp4l441ktimers/311:54:553
4577091260,3ptp4l441ktimers/309:35:013
4577091260,3ptp4l441ktimers/309:30:003
4577091260,3ptp4l441ktimers/308:00:003
1994858992625,1cyclictest0-21swapper/311:21:593
1994858992625,1cyclictest0-21swapper/308:11:593
199485899260,25cyclictest2030813-21turbostat09:00:013
199485899260,25cyclictest0-21swapper/309:13:003
199485899260,1cyclictest0-21swapper/309:50:043
1994854992624,1cyclictest0-21swapper/210:29:592
199485499260,24cyclictest0-21swapper/209:45:002
4577091250,3ptp4l441ktimers/312:39:563
4577091250,3ptp4l441ktimers/312:29:553
4577091250,3ptp4l441ktimers/311:30:013
4577091250,3ptp4l441ktimers/308:45:003
1994858992523,1cyclictest0-21swapper/307:40:593
199485899250,24cyclictest2064509-21turbostat10:45:013
1994854992522,2cyclictest0-21swapper/211:51:002
1994854992522,2cyclictest0-21swapper/210:52:592
4577091240,3ptp4l61490irq/134-eno1-TxRx-012:34:553
4577091240,3ptp4l61490irq/134-eno1-TxRx-011:04:553
4577091240,3ptp4l61490irq/134-eno1-TxRx-010:54:593
4577091240,3ptp4l441ktimers/310:04:553
4577091240,3ptp4l441ktimers/308:29:553
1994858992422,1cyclictest0-21swapper/311:55:123
1994858992422,1cyclictest0-21swapper/311:55:113
1994858992421,2cyclictest0-21swapper/312:00:133
1994854992421,2cyclictest0-21swapper/210:03:582
1994854992320,2cyclictest0-21swapper/208:27:592
1994854992219,2cyclictest0-21swapper/210:49:562
1994854992219,2cyclictest0-21swapper/207:21:592
1994852992116,4cyclictest0-21swapper/107:10:021
1994849992116,4cyclictest1994715-21latency_hist07:10:020
1994854991917,1cyclictest0-21swapper/211:49:592
1994854991815,2cyclictest0-21swapper/209:22:592
1994854991613,2cyclictest0-21swapper/211:03:002
1994854991613,2cyclictest0-21swapper/208:56:582
1994854991613,2cyclictest0-21swapper/208:53:592
1994854991311,1cyclictest0-21swapper/209:30:122
199485499118,2cyclictest0-21swapper/209:27:582
199485499107,2cyclictest0-21swapper/211:35:012
19948549982,5cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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