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2026-09-04 - 20:03
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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 792 highest latencies:
System rackeslot6.osadl.org (updated Fri Sep 04, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
418982499154136,15cyclictest4604-21kworker/u8:0+flush-179:007:45:011
418982499154136,15cyclictest4604-21kworker/u8:0+flush-179:007:45:011
418982499153141,8cyclictest91424-21latency_hist12:05:011
418982399147140,5cyclictest23512-21kworker/u8:1+flush-179:009:30:000
418982399145130,11cyclictest65745-21kworker/u8:2+flush-179:011:05:000
418982499137126,9cyclictest1213033-21systemd-journal09:35:011
418982499135128,5cyclictest97768-21kworker/u8:1+flush-179:012:25:251
418982399133125,5cyclictest634-21kworker/u8:3+flush-179:007:40:000
418982399128116,9cyclictest68866-21kworker/u8:0+flush-179:011:45:190
418982399127116,8cyclictest510-21rs:main0
418982399121114,5cyclictest81848-21kworker/u8:3+flush-179:011:50:270
418982399121112,6cyclictest8951-21latency_hist07:50:010
418982499119106,10cyclictest1213033-21systemd-journal10:35:141
418982499117106,8cyclictest7115-21apt-get07:45:031
418982499116109,5cyclictest68866-21kworker/u8:0+flush-179:011:10:261
418982499115104,7cyclictest26716-21kworker/u8:0+events_unbound08:50:011
418982499115103,10cyclictest4193239-21kworker/u8:2+flush-179:007:30:001
418982499112102,8cyclictest65745-21kworker/u8:2+flush-179:011:05:201
418982499111106,4cyclictest15297-21kworker/u8:0+events_unbound08:30:011
418982499111101,7cyclictest54553-21kworker/u8:0+flush-179:010:10:231
418982499111101,7cyclictest54553-21kworker/u8:0+flush-179:010:10:231
418982399111104,5cyclictest88482-21apt-get11:55:120
418982399111101,7cyclictest65702-21latency_hist10:45:010
418982499110103,5cyclictest52691-21kworker/u8:1+flush-179:010:05:201
41898239911075,6cyclictest72078-21apt-get11:05:020
418982399109101,5cyclictest1-21systemd08:35:010
41898249910798,6cyclictest26724-21latency_hist08:45:011
418982499107101,4cyclictest15297-21kworker/u8:0+events_unbound08:15:131
418982499107100,5cyclictest23512-21kworker/u8:1+flush-179:008:35:001
41898239910795,9cyclictest4190042-21apt-get07:10:120
41898249910697,5cyclictest23512-21kworker/u8:1+flush-179:009:35:211
41898249910296,4cyclictest15297-21kworker/u8:0+events_unbound08:20:221
41898249910295,5cyclictest46067-21kworker/u8:0+flush-179:009:50:241
41898239910293,6cyclictest4189742-21latency_hist07:10:020
41898249910195,5cyclictest68866-21kworker/u8:0+events_unbound11:35:251
41898249910194,5cyclictest62229-21kworker/u8:1+flush-179:010:45:211
41898239910193,6cyclictest54553-21kworker/u8:0+flush-179:010:30:180
4189824999992,5cyclictest4188281-21kworker/u8:1+flush-179:007:30:191
4189824999791,4cyclictest7160-21kworker/u8:2+flush-179:007:55:141
4189824999787,8cyclictest44748-21apt-get09:40:101
4189824999689,5cyclictest54553-21kworker/u8:0+flush-179:010:25:151
4189824999689,5cyclictest23512-21kworker/u8:1+events_unbound08:50:141
4189824999687,7cyclictest23512-21kworker/u8:1+flush-179:009:15:191
4189823999682,10cyclictest49258-21apt-get09:55:000
4189824999589,4cyclictest68866-21kworker/u8:0+events_unbound11:45:181
4189823999584,9cyclictest46067-21kworker/u8:0+flush-179:010:00:210
4189824999488,4cyclictest97768-21kworker/u8:1+flush-179:012:30:201
4189824999487,5cyclictest68866-21kworker/u8:0+flush-179:011:15:151
4189824999386,5cyclictest4188281-21kworker/u8:1+flush-179:007:20:211
4189823999382,8cyclictest1213033-21systemd-journal11:20:000
4189824999284,5cyclictest65745-21kworker/u8:2+flush-179:011:20:191
4189824999284,5cyclictest65745-21kworker/u8:2+flush-179:011:20:181
4189824999187,3cyclictest4188225-21kworker/u8:0+flush-179:007:15:251
4189824999083,5cyclictest62229-21kworker/u8:1+flush-179:010:50:241
4189828998982,5cyclictest64111-21turbostat10:40:003
4189824998982,5cyclictest65745-21kworker/u8:2+flush-179:011:00:151
4189824998982,5cyclictest100993-21kworker/u8:0+flush-179:012:35:201
4189823998778,6cyclictest36259-21latency_hist09:15:000
4189824998681,4cyclictest68866-21kworker/u8:0+flush-179:011:43:301
4189823998679,5cyclictest65745-21kworker/u8:2+events_unbound10:55:180
4189824998579,5cyclictest54553-21kworker/u8:0+flush-179:010:25:001
4189824998579,4cyclictest89190-21kworker/u8:1+flush-179:012:10:151
4189824998578,5cyclictest62229-21kworker/u8:1+flush-179:010:40:211
4189824998571,11cyclictest1213033-21systemd-journal09:26:311
4189824998477,5cyclictest634-21kworker/u8:3+flush-179:008:00:161
4189824998477,5cyclictest54553-21kworker/u8:0+flush-179:010:30:231
4189824998477,5cyclictest4604-21kworker/u8:0+flush-179:007:50:161
4189823998471,10cyclictest46073-21kworker/u8:2+events_unbound09:55:190
4189824998274,5cyclictest78675-21kworker/u8:1+events_unbound11:30:201
4189824998174,5cyclictest89190-21kworker/u8:1+flush-179:012:05:211
4189824998174,4cyclictest4188281-21kworker/u8:1+events_unbound07:10:251
4189824998171,8cyclictest46340-21apt-get09:45:111
4189823998172,6cyclictest57486-21latency_hist10:20:000
4189823998074,4cyclictest41076-21kworker/u8:3+flush-179:009:40:240
4189824997972,5cyclictest29937-21kworker/u8:3+events_unbound09:00:011
4189823997973,4cyclictest91403-21kworker/u8:0+flush-179:012:15:230
4189823997971,6cyclictest30148-21apt-get08:55:090
4189823997967,8cyclictest78675-21kworker/u8:1+flush-179:011:35:210
4189824997870,6cyclictest10580-21kworker/u8:1+events_unbound08:05:231
4189824997869,7cyclictest33326-21/usr/sbin/munin09:05:221
4189824997862,6cyclictest10580-21kworker/u8:1+events_unbound08:15:001
4189823997870,5cyclictest97768-21kworker/u8:1+flush-179:012:30:140
4189823997869,7cyclictest29893-21latency_hist08:55:010
4189824997669,5cyclictest52691-21kworker/u8:1+flush-179:010:15:181
4189823997669,5cyclictest81848-21kworker/u8:3+flush-179:012:00:220
4189823997664,8cyclictest91403-21kworker/u8:0+flush-179:012:20:210
4189823997562,9cyclictest29937-21kworker/u8:3+flush-179:009:00:210
4189824997466,6cyclictest1213033-21systemd-journal12:24:551
4189823997470,2cyclictest0-21swapper/012:09:590
4189823997466,6cyclictest10580-21kworker/u8:1+events_unbound08:05:140
4189823997367,5cyclictest4188225-21kworker/u8:0+events_unbound07:15:230
4189823997366,5cyclictest68866-21kworker/u8:0+events_unbound11:30:250
4189823997366,5cyclictest4604-21kworker/u8:0+events_unbound07:45:020
4189823997366,5cyclictest4604-21kworker/u8:0+events_unbound07:45:020
4189823997363,8cyclictest36515-21apt-get09:15:100
4189824997263,6cyclictest52709-21latency_hist10:05:021
4189823997166,3cyclictest97768-21kworker/u8:1+flush-179:012:25:260
4189823997165,4cyclictest4188281-21kworker/u8:1+flush-179:007:25:000
4189824997065,4cyclictest65745-21kworker/u8:2+flush-179:010:55:211
4189823997064,4cyclictest634-21kworker/u8:3+flush-179:007:55:090
4189823997063,5cyclictest23512-21kworker/u8:1+flush-179:009:35:240
4189823996959,7cyclictest1213033-21systemd-journal10:50:170
4189823996858,7cyclictest7160-21kworker/u8:2+flush-179:008:40:210
418982799670,2cyclictest0-21swapper/212:23:592
4189824996757,7cyclictest25135-21latency_hist08:40:011
4189824996743,21cyclictest29937-21kworker/u8:3+flush-179:009:05:011
4189823996761,5cyclictest57441-21kworker/u8:2+flush-179:010:20:220
4189824996658,5cyclictest29937-21kworker/u8:3+flush-179:009:10:201
4189823996660,5cyclictest4188281-21kworker/u8:1+events_unbound07:30:230
4189823996659,5cyclictest23512-21kworker/u8:1+flush-179:008:45:240
4189824996559,4cyclictest68866-21kworker/u8:0+events_unbound11:25:141
4189824996553,4cyclictest634-21kworker/u8:3+events_unbound07:35:231
4189823996558,4cyclictest23512-21kworker/u8:1+events_unbound08:35:170
4189823996555,7cyclictest54553-21kworker/u8:0+events_unbound10:25:170
4189823996555,7cyclictest15297-21kworker/u8:0+events_unbound08:15:180
4189823996554,8cyclictest75497-21latency_hist11:15:010
4189824996458,5cyclictest91403-21kworker/u8:0+flush-179:012:15:251
4189824996458,4cyclictest34662-21kworker/u8:0+events_unbound09:20:181
4189823996456,6cyclictest68866-21kworker/u8:0+flush-179:011:25:010
4189823996456,6cyclictest68866-21kworker/u8:0+flush-179:011:25:000
4189823996357,5cyclictest78675-21kworker/u8:1+flush-179:011:25:200
4189823996356,4cyclictest23512-21kworker/u8:1+events_unbound09:30:230
4189823996353,7cyclictest100993-21kworker/u8:0+flush-179:012:35:130
4189824996250,9cyclictest89829-21latency_hist12:00:011
4189824996248,7cyclictest46073-21kworker/u8:2+events_unbound09:55:011
4189823996256,5cyclictest46073-21kworker/u8:2+flush-179:009:45:240
4189823996255,5cyclictest34662-21kworker/u8:0+flush-179:009:20:230
4189828996159,1cyclictest0-21swapper/312:23:593
4189827996055,2cyclictest0-21swapper/209:25:592
4189823995851,6cyclictest62233-21kworker/u8:3+flush-179:010:50:000
4189823995752,4cyclictest7160-21kworker/u8:2+flush-179:008:20:170
4189823995750,5cyclictest634-21kworker/u8:3+flush-179:008:00:220
4189823995652,3cyclictest714-21Xorg11:40:590
4189823995650,5cyclictest89190-21kworker/u8:1+flush-179:012:10:230
4189823995650,5cyclictest4604-21kworker/u8:0+events_unbound07:50:140
4189827995525,2cyclictest0-21swapper/211:40:592
4189823995549,4cyclictest29937-21kworker/u8:3+events_unbound09:10:000
4189823995447,5cyclictest54293-21latency_hist10:10:020
4189824995347,5cyclictest81848-21kworker/u8:3+flush-179:011:50:301
4189823995346,4cyclictest15297-21kworker/u8:0+flush-179:008:25:180
4189823995241,9cyclictest15571-21apt-get08:10:120
418982399521,47cyclictest2247-21munin-run07:30:000
4577091500,14ptp4l61490irq/134-eno1-TxRx-007:10:003
4189828994845,2cyclictest0-21swapper/309:25:583
4189827994844,2cyclictest0-21swapper/212:09:592
4189828994438,5cyclictest47682-21turbostat09:50:003
418982799430,1cyclictest0-21swapper/207:25:582
4577091420,6ptp4l431rcuc/309:10:003
4189828994030,8cyclictest0-21swapper/307:25:593
4189827994032,5cyclictest0-21swapper/211:09:542
4577091390,4ptp4l431rcuc/311:00:003
4189827993936,2cyclictest0-21swapper/210:58:592
4189827993936,2cyclictest0-21swapper/207:34:552
4189823993933,5cyclictest54553-21kworker/u8:0+flush-179:010:10:310
4189823993933,5cyclictest54553-21kworker/u8:0+flush-179:010:10:300
4189827993834,2cyclictest0-21swapper/211:32:592
418982799380,36cyclictest0-21swapper/211:46:592
418982799380,36cyclictest0-21swapper/210:47:592
418982799380,35cyclictest0-21swapper/207:51:592
418982799380,35cyclictest0-21swapper/207:49:562
418982799380,35cyclictest0-21swapper/207:44:552
418982799380,35cyclictest0-21swapper/207:44:542
4189828993734,2cyclictest0-21swapper/307:23:583
4189827993734,2cyclictest0-21swapper/210:38:582
4189827993734,2cyclictest0-21swapper/210:12:002
4189827993734,2cyclictest0-21swapper/210:12:002
4189827993733,2cyclictest0-21swapper/210:29:002
4189827993733,2cyclictest0-21swapper/207:55:592
418982799370,35cyclictest0-21swapper/208:58:002
4189828993633,2cyclictest0-21swapper/312:09:593
418982899360,1cyclictest0-21swapper/310:44:593
418982899360,1cyclictest0-21swapper/308:26:593
418982899360,1cyclictest0-21swapper/307:31:593
4189827993627,7cyclictest0-21swapper/210:55:002
418982799360,1cyclictest0-21swapper/208:10:582
418982799360,1cyclictest0-21swapper/207:14:002
418982799350,1cyclictest0-21swapper/212:04:592
418982899340,2cyclictest0-21swapper/309:50:153
4189827993431,2cyclictest0-21swapper/211:56:592
4189827993431,2cyclictest0-21swapper/207:20:592
4189828993331,1cyclictest0-21swapper/311:53:593
4189828993328,4cyclictest7116-21turbostat07:45:013
4189828993328,4cyclictest7116-21turbostat07:45:013
4189828993326,6cyclictest0-21swapper/311:04:553
418982899330,1cyclictest0-21swapper/312:25:143
418982799330,26cyclictest0-21swapper/210:30:112
4189828993230,1cyclictest0-21swapper/308:10:593
4189828993229,2cyclictest0-21swapper/312:04:593
4189828993229,2cyclictest0-21swapper/307:51:593
418982899320,1cyclictest0-21swapper/312:30:113
418982899320,1cyclictest0-21swapper/308:15:013
4189827993225,6cyclictest0-21swapper/212:25:132
4189828993130,1cyclictest0-21swapper/307:14:003
4189828993129,1cyclictest0-21swapper/307:49:563
4189828993122,7cyclictest0-21swapper/311:09:543
4189828993118,12cyclictest68882-21turbostat10:55:003
418982899310,24cyclictest0-21swapper/308:39:583
418982899310,1cyclictest0-21swapper/308:56:583
418982899310,1cyclictest0-21swapper/308:00:003
4189827993128,2cyclictest0-21swapper/209:34:592
4189827993128,2cyclictest0-21swapper/208:54:552
4189827993126,4cyclictest0-21swapper/208:15:022
4189827993125,5cyclictest0-21swapper/208:05:132
4577091300,7ptp4l441ktimers/311:10:013
4189828993028,1cyclictest0-21swapper/311:46:593
4189828993028,1cyclictest0-21swapper/310:47:593
4189828993028,1cyclictest0-21swapper/310:29:593
4189828993027,2cyclictest0-21swapper/311:25:123
4189828993025,4cyclictest0-21swapper/310:30:113
4189828993024,5cyclictest0-21swapper/308:05:123
418982899300,1cyclictest0-21swapper/309:38:593
4189827993027,2cyclictest0-21swapper/209:02:592
4189828992927,1cyclictest0-21swapper/308:50:143
4189828992926,2cyclictest0-21swapper/309:00:123
4189827992926,2cyclictest0-21swapper/211:29:562
4189827992926,2cyclictest0-21swapper/209:59:552
4189827992925,2cyclictest0-21swapper/209:45:112
418982799290,2cyclictest0-21swapper/210:40:132
418982799290,27cyclictest0-21swapper/212:10:112
418982799290,27cyclictest0-21swapper/210:00:132
418982799290,27cyclictest0-21swapper/209:35:022
418982799290,27cyclictest0-21swapper/208:20:122
418982799290,1cyclictest0-21swapper/210:20:132
4577091280,7ptp4l441ktimers/310:05:003
4577091280,6ptp4l441ktimers/308:45:003
4577091280,6ptp4l441ktimers/308:35:013
4577091280,5ptp4l61490irq/134-eno1-TxRx-008:50:013
4577091280,5ptp4l441ktimers/307:40:013
4189828992826,1cyclictest0-21swapper/311:55:143
4189828992821,6cyclictest0-21swapper/311:40:143
418982899280,27cyclictest0-21swapper/311:15:103
418982899280,27cyclictest0-21swapper/310:20:143
418982899280,26cyclictest0-21swapper/312:10:113
418982899280,26cyclictest0-21swapper/309:55:033
4189827992825,2cyclictest0-21swapper/208:40:132
418982799280,2cyclictest0-21swapper/209:50:142
418982799280,26cyclictest0-21swapper/211:50:162
418982799280,26cyclictest0-21swapper/211:15:112
4577091270,6ptp4l441ktimers/311:24:573
4577091270,6ptp4l441ktimers/311:24:563
4577091270,6ptp4l441ktimers/309:15:003
4577091270,6ptp4l441ktimers/307:19:563
4577091270,5ptp4l61490irq/134-eno1-TxRx-011:40:003
4189828992725,1cyclictest0-21swapper/310:12:003
4189828992725,1cyclictest0-21swapper/310:11:593
418982899270,26cyclictest0-21swapper/309:34:593
418982899270,26cyclictest0-21swapper/308:20:113
4189827992725,1cyclictest0-21swapper/208:04:592
4189827992723,2cyclictest0-21swapper/208:25:582
4189827992718,7cyclictest0-21swapper/207:18:592
4577091260,5ptp4l61490irq/134-eno1-TxRx-012:20:003
4577091260,5ptp4l441ktimers/312:39:563
4577091260,4ptp4l441ktimers/309:25:023
4189828992624,1cyclictest0-21swapper/311:32:593
418982899260,24cyclictest0-21swapper/310:05:123
4189827992623,2cyclictest0-21swapper/210:15:142
4189827992623,2cyclictest0-21swapper/207:38:592
418982799260,2cyclictest0-21swapper/211:37:592
418982799260,24cyclictest0-21swapper/208:39:592
4577091250,5ptp4l441ktimers/310:19:563
4577091250,4ptp4l61490irq/134-eno1-TxRx-009:45:003
4189828992523,1cyclictest0-21swapper/308:03:593
4189828992423,1cyclictest0-21swapper/309:19:003
4189827992421,2cyclictest0-21swapper/209:11:592
4189827992320,2cyclictest0-21swapper/209:20:002
4189827992219,2cyclictest0-21swapper/211:23:582
4189827992219,2cyclictest0-21swapper/211:23:582
4189827992219,2cyclictest0-21swapper/210:09:552
231999220,13rtkit-daemon495-21gpm07:05:181
4189827992017,2cyclictest0-21swapper/209:44:002
4189827991916,2cyclictest0-21swapper/209:21:592
4189827991715,1cyclictest0-21swapper/211:14:592
4189827991512,2cyclictest0-21swapper/208:46:592
4189827991412,2cyclictest0-21swapper/212:39:562
4189827991411,2cyclictest0-21swapper/212:16:592
4189827991411,2cyclictest0-21swapper/211:03:592
4189827991411,2cyclictest0-21swapper/209:06:592
4189827991411,2cyclictest0-21swapper/208:34:562
4189827991310,2cyclictest0-21swapper/212:34:552
41898279941,2cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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