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2026-03-24 - 15:46
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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 376 highest latencies:
System rackeslot6.osadl.org (updated Tue Mar 24, 2026 12:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
569293999277,12cyclictest639809-21apt-get10:50:010
569294999181,7cyclictest625489-21latency_hist10:05:011
569293999178,9cyclictest648045-21kworker/u8:3+flush-179:011:25:240
569294998985,3cyclictest591791-21kworker/u8:3+events_unbound08:55:001
569294998984,4cyclictest648045-21kworker/u8:3+flush-179:011:25:281
569294998783,3cyclictest617517-21kworker/u8:1+events_unbound09:55:251
569294998783,3cyclictest617517-21kworker/u8:1+events_unbound09:55:251
569294998782,4cyclictest582244-21kworker/u8:0+flush-179:008:05:251
569294998780,5cyclictest617517-21kworker/u8:1+events_unbound09:50:021
569294998576,6cyclictest635028-21latency_hist10:35:011
569294998480,3cyclictest595251-21kworker/u8:0+events_unbound08:35:241
569294998474,7cyclictest266-21systemd-journal11:15:001
569293998475,7cyclictest660737-21latency_hist11:55:000
569294998377,4cyclictest576651-21kworker/u8:1+events_unbound07:40:241
569293998376,5cyclictest591791-21kworker/u8:3+events_unbound09:05:010
569293998375,5cyclictest617517-21kworker/u8:1+flush-179:009:55:220
569293998375,5cyclictest617517-21kworker/u8:1+flush-179:009:55:220
569294998277,4cyclictest659196-21kworker/u8:0+flush-179:012:25:281
569293998173,6cyclictest646458-21kworker/u8:2+flush-179:012:10:000
569294998075,4cyclictest598231-21kworker/u8:2+flush-179:008:45:261
569294997975,3cyclictest595251-21kworker/u8:0+events_unbound08:30:221
569294997874,3cyclictest627615-21kworker/u8:0+events_unbound10:10:241
569294997868,3cyclictest618900-21kworker/u8:3+events_unbound10:20:251
569293997868,7cyclictest644841-21latency_hist11:05:000
569294997772,4cyclictest656012-21kworker/u8:1+flush-179:011:55:261
569293997771,4cyclictest638999-21kworker/u8:2+flush-179:010:55:000
569294997671,4cyclictest656012-21kworker/u8:1+events_unbound11:40:211
569294997671,3cyclictest569258-21kworker/u8:2+events_unbound07:10:201
569294997571,3cyclictest615659-21kworker/u8:2+events_unbound09:35:251
569294997470,3cyclictest646458-21kworker/u8:2+events_unbound11:30:231
569294997469,4cyclictest631723-21kworker/u8:0+flush-179:010:25:201
569294997268,3cyclictest588672-21kworker/u8:2+flush-179:008:20:201
569294997267,4cyclictest606686-21kworker/u8:0+flush-179:009:10:271
569294997267,4cyclictest606686-21kworker/u8:0+flush-179:009:10:271
569293997261,8cyclictest576651-21kworker/u8:1+flush-179:008:10:220
569294997167,3cyclictest656012-21kworker/u8:1+flush-179:011:45:241
569294997166,4cyclictest606686-21kworker/u8:0+events_unbound09:30:241
569294996965,3cyclictest569258-21kworker/u8:2+flush-179:007:20:211
569294996964,4cyclictest618900-21kworker/u8:3+events_unbound10:05:201
569294996964,4cyclictest569258-21kworker/u8:2+events_unbound07:25:231
569293996963,4cyclictest659196-21kworker/u8:0+events_unbound12:30:000
569293996960,6cyclictest630250-21latency_hist10:20:010
569294996863,4cyclictest648045-21kworker/u8:3+flush-179:011:24:551
569294996863,4cyclictest576651-21kworker/u8:1+events_unbound08:10:271
569294996762,4cyclictest617517-21kworker/u8:1+flush-179:009:45:271
569293996760,5cyclictest598231-21kworker/u8:2+events_unbound08:45:010
569294996662,3cyclictest659196-21kworker/u8:0+flush-179:012:24:551
569294996662,3cyclictest638999-21kworker/u8:2+flush-179:011:00:281
569293996657,7cyclictest607958-21/usr/sbin/munin09:10:240
569293996657,7cyclictest607958-21/usr/sbin/munin09:10:240
569293996654,9cyclictest588672-21kworker/u8:2+events_unbound08:24:590
569294996557,6cyclictest646458-21kworker/u8:2+flush-179:012:05:001
569293996557,5cyclictest656012-21kworker/u8:1+flush-179:011:45:210
569294996460,3cyclictest576651-21kworker/u8:1+events_unbound07:55:251
569294996459,4cyclictest668721-21kworker/u8:3+flush-179:012:19:561
569294996459,4cyclictest659196-21kworker/u8:0+flush-179:012:09:551
569294996459,4cyclictest591791-21kworker/u8:3+flush-179:009:00:231
569294996459,4cyclictest576651-21kworker/u8:1+events_unbound08:00:241
569293996460,3cyclictest617517-21kworker/u8:1+events_unbound09:45:240
569293996455,7cyclictest668721-21kworker/u8:3+flush-179:012:34:590
569294996354,3cyclictest591791-21kworker/u8:3+events_unbound08:40:171
569294996257,4cyclictest641628-21kworker/u8:1+flush-179:010:54:561
569294996156,4cyclictest569258-21kworker/u8:2+flush-179:007:15:281
569293996152,6cyclictest623948-21kworker/u8:2+flush-179:010:30:220
569294995955,3cyclictest606686-21kworker/u8:0+events_unbound09:15:271
569293995951,6cyclictest603198-21apt-get08:55:120
569294995854,3cyclictest588672-21kworker/u8:2+events_unbound08:25:231
569294995852,4cyclictest668721-21kworker/u8:3+events_unbound12:35:121
569293995850,6cyclictest593663-21apt-get08:25:120
56929399580,56cyclictest1-21systemd09:35:000
569294995753,3cyclictest644830-21kworker/u8:0+events_unbound11:05:221
569294995744,11cyclictest266-21systemd-journal07:35:011
569293995746,8cyclictest641903-21apt-get10:55:130
569294995652,3cyclictest591791-21kworker/u8:3+events_unbound09:20:181
569294995651,4cyclictest646458-21kworker/u8:2+events_unbound12:10:191
569293995645,7cyclictest580419-21latency_hist07:45:020
569293995551,2cyclictest615659-21kworker/u8:2+flush-179:009:35:110
4577091550,4ptp4l0-21swapper/307:45:013
569294995449,4cyclictest588672-21kworker/u8:2+flush-179:008:19:551
569294995449,4cyclictest576651-21kworker/u8:1+flush-179:007:39:561
569294995349,3cyclictest635011-21kworker/u8:3+events_unbound10:35:241
569293995350,2cyclictest623948-21kworker/u8:2+events_unbound10:00:230
569293995343,8cyclictest627328-21apt-get10:10:110
569294995247,4cyclictest641628-21kworker/u8:1+flush-179:011:15:281
569294995247,4cyclictest591791-21kworker/u8:3+events_unbound08:55:261
569293995247,4cyclictest606686-21kworker/u8:0+flush-179:009:15:240
569293995246,5cyclictest266-21systemd-journal09:23:280
569293995146,3cyclictest646458-21kworker/u8:2+flush-179:012:00:210
569294995046,3cyclictest651249-21kworker/u8:0+flush-179:011:35:261
569294995046,3cyclictest638999-21kworker/u8:2+flush-179:010:45:301
569294995045,4cyclictest618900-21kworker/u8:3+events_unbound10:19:441
569294995045,4cyclictest606686-21kworker/u8:0+events_unbound09:09:311
569293995044,4cyclictest646426-21latency_hist11:10:010
569294994944,4cyclictest659196-21kworker/u8:0+events_unbound12:30:131
569293994947,1cyclictest617517-21kworker/u8:1+events_unbound09:40:260
569293994940,6cyclictest635011-21kworker/u8:3+flush-179:010:35:220
4577091490,14ptp4l61490irq/134-eno1-TxRx-007:10:013
569293994841,5cyclictest668721-21kworker/u8:3+flush-179:012:20:220
569293994838,7cyclictest577463-21kworker/u8:3+events_unbound07:35:150
569294994743,3cyclictest641628-21kworker/u8:1+events_unbound10:55:261
569294994743,3cyclictest634988-21kworker/u8:1+events_unbound10:40:221
56929399471,9cyclictest602952-21dump-pmu-power08:55:010
569294994642,3cyclictest582244-21kworker/u8:0+flush-179:007:49:551
569293994641,4cyclictest576651-21kworker/u8:1+events_unbound08:05:000
569293994540,3cyclictest606686-21kworker/u8:0+events_unbound09:25:260
569293994539,4cyclictest641628-21kworker/u8:1+events_unbound11:20:130
569293994538,5cyclictest651249-21kworker/u8:0+flush-179:011:40:000
569294994439,4cyclictest646458-21kworker/u8:2+events_unbound11:50:121
569293994438,4cyclictest591791-21kworker/u8:3+events_unbound08:40:010
569293994436,6cyclictest662305-21apt-helper11:56:000
569293994435,7cyclictest575617-21latency_hist07:30:020
569299994340,2cyclictest0-21swapper/208:15:582
569294994338,4cyclictest576651-21kworker/u8:1+events_unbound07:52:291
569293994339,3cyclictest572486-21systemd-run07:20:000
569293994337,4cyclictest582244-21kworker/u8:0+flush-179:008:15:190
569293994336,5cyclictest600768-21ntpq08:45:190
569293994335,6cyclictest646458-21kworker/u8:2+flush-179:011:30:220
56930399420,41cyclictest0-21swapper/310:17:593
56929999420,1cyclictest0-21swapper/212:26:592
569293994238,3cyclictest667390-21kworker/u8:1+flush-179:012:15:260
569293994237,4cyclictest634988-21kworker/u8:1+flush-179:010:40:210
569293994237,3cyclictest618900-21kworker/u8:3+flush-179:010:05:140
569293994236,5cyclictest673505-21kworker/u8:2+events_unbound12:35:230
569293994232,8cyclictest584105-21apt-get07:55:130
569294994133,5cyclictest0-21swapper/109:43:591
569293994133,6cyclictest582244-21kworker/u8:0+flush-179:007:55:000
569293994133,6cyclictest549655-21kworker/u8:0+events_unbound07:30:190
56929399411,4cyclictest622312-21perf09:55:000
569293994035,4cyclictest606686-21kworker/u8:0+flush-179:009:05:200
56929399400,38cyclictest714-21Xorg12:11:580
56930399390,37cyclictest577212-21turbostat07:39:563
56929999390,36cyclictest0-21swapper/210:57:592
56929999390,36cyclictest0-21swapper/207:45:002
569294993934,4cyclictest606686-21kworker/u8:0+events_unbound09:29:281
569293993932,5cyclictest623948-21kworker/u8:2+flush-179:010:25:010
569293993929,8cyclictest641628-21kworker/u8:1+flush-179:011:20:000
569299993836,1cyclictest0-21swapper/212:05:002
56929999380,36cyclictest0-21swapper/210:13:592
56929999380,35cyclictest0-21swapper/212:24:592
56929999380,35cyclictest0-21swapper/209:55:592
56929999380,35cyclictest0-21swapper/209:55:592
569293993831,5cyclictest588628-21latency_hist08:10:010
569293993831,4cyclictest0-21swapper/011:12:590
56929399380,36cyclictest908065-21snmpd07:45:010
569299993734,2cyclictest0-21swapper/209:18:592
569299993734,2cyclictest0-21swapper/208:46:592
569299993734,2cyclictest0-21swapper/207:29:002
56929999370,35cyclictest0-21swapper/208:13:592
56929999370,35cyclictest0-21swapper/207:59:582
569293993725,10cyclictest266-21systemd-journal08:35:010
569303993634,1cyclictest0-21swapper/311:39:553
569303993633,2cyclictest0-21swapper/309:24:003
569303993633,2cyclictest0-21swapper/308:30:593
569303993630,4cyclictest667160-21turbostat12:14:593
56930399360,35cyclictest0-21swapper/311:58:593
56930399360,35cyclictest0-21swapper/310:34:553
569299993634,1cyclictest0-21swapper/207:11:002
569299993633,2cyclictest0-21swapper/209:11:002
569299993633,2cyclictest0-21swapper/209:10:592
569299993632,2cyclictest0-21swapper/212:15:002
56929399365,30cyclictest151ktimers/007:20:130
569293993633,2cyclictest0-21swapper/011:40:590
569293993629,5cyclictest266-21systemd-journal10:27:270
4577091360,28ptp4l61490irq/134-eno1-TxRx-008:45:123
569303993532,2cyclictest0-21swapper/310:28:583
56930399350,34cyclictest0-21swapper/311:49:003
569299993533,1cyclictest0-21swapper/212:40:002
569299993532,2cyclictest0-21swapper/211:49:552
569299993532,2cyclictest0-21swapper/211:41:582
56929999350,1cyclictest0-21swapper/208:25:002
569303993431,2cyclictest0-21swapper/312:01:003
569299993432,1cyclictest0-21swapper/210:30:002
569299993432,1cyclictest0-21swapper/207:19:592
569299993431,2cyclictest0-21swapper/212:34:542
569299993431,2cyclictest0-21swapper/211:25:002
569299993431,2cyclictest0-21swapper/210:45:002
569299993431,2cyclictest0-21swapper/210:07:592
569299993431,2cyclictest0-21swapper/209:07:592
4577091340,3ptp4l61490irq/134-eno1-TxRx-010:40:123
569303993331,1cyclictest0-21swapper/311:44:593
569303993330,2cyclictest0-21swapper/311:25:593
569299993331,1cyclictest0-21swapper/207:35:012
569299993330,2cyclictest0-21swapper/210:02:592
569299993330,2cyclictest0-21swapper/209:04:592
569299993330,1cyclictest0-21swapper/208:55:002
569303993230,1cyclictest0-21swapper/308:39:553
569303993230,1cyclictest0-21swapper/308:00:593
569299993230,1cyclictest0-21swapper/211:20:002
569299993230,1cyclictest0-21swapper/210:40:002
569299993230,1cyclictest0-21swapper/209:25:002
569299993229,2cyclictest0-21swapper/211:56:582
569299993229,2cyclictest0-21swapper/209:51:592
569299993229,2cyclictest0-21swapper/209:44:562
569299993229,2cyclictest0-21swapper/208:34:592
569299993229,2cyclictest0-21swapper/207:50:592
569293993228,3cyclictest569258-21kworker/u8:2+events_unbound07:10:180
569303993129,1cyclictest0-21swapper/308:43:583
569303993126,4cyclictest610930-21turbostat09:20:003
569293993123,6cyclictest569205-21latency_hist07:10:020
569303993028,1cyclictest0-21swapper/310:12:593
569303993028,1cyclictest0-21swapper/307:48:583
569303993028,1cyclictest0-21swapper/307:13:593
569303993027,2cyclictest0-21swapper/312:38:593
569303993027,2cyclictest0-21swapper/311:03:583
569303993027,2cyclictest0-21swapper/309:59:593
569303993027,2cyclictest0-21swapper/309:59:593
569303993027,2cyclictest0-21swapper/309:00:143
56930399300,2cyclictest0-21swapper/308:17:593
56930399300,28cyclictest0-21swapper/310:55:143
569299993027,2cyclictest0-21swapper/211:25:142
56929999300,28cyclictest0-21swapper/207:45:132
569303992927,1cyclictest0-21swapper/311:08:003
569303992926,2cyclictest0-21swapper/311:15:593
569303992926,2cyclictest0-21swapper/310:00:123
569303992926,2cyclictest0-21swapper/309:50:133
569303992926,2cyclictest0-21swapper/309:49:593
569303992926,2cyclictest0-21swapper/308:25:143
569303992926,2cyclictest0-21swapper/307:55:143
56930399290,28cyclictest0-21swapper/311:10:143
56930399290,28cyclictest0-21swapper/307:15:133
569299992927,1cyclictest0-21swapper/209:40:012
569299992927,1cyclictest0-21swapper/208:05:002
56929999290,28cyclictest0-21swapper/210:50:022
56929999290,27cyclictest0-21swapper/208:55:142
56929999290,26cyclictest0-21swapper/207:20:582
569303992826,1cyclictest431rcuc/312:18:003
569303992826,1cyclictest0-21swapper/307:50:123
56930399280,2cyclictest0-21swapper/307:30:123
56930399280,27cyclictest588645-21turbostat08:10:003
56930399280,27cyclictest0-21swapper/312:20:143
56930399280,27cyclictest0-21swapper/309:25:143
56930399280,27cyclictest0-21swapper/309:05:133
569299992826,1cyclictest0-21swapper/212:20:002
569299992826,1cyclictest0-21swapper/210:45:152
569299992826,1cyclictest0-21swapper/209:45:592
569299992825,2cyclictest0-21swapper/211:30:142
569299992825,2cyclictest0-21swapper/207:35:112
56929999280,2cyclictest0-21swapper/208:40:132
56929999280,26cyclictest0-21swapper/212:05:132
56929999280,26cyclictest0-21swapper/210:20:142
569303992725,1cyclictest0-21swapper/310:48:593
569303992725,1cyclictest0-21swapper/309:35:133
569303992725,1cyclictest0-21swapper/309:34:593
569303992725,1cyclictest0-21swapper/307:25:003
56930399270,26cyclictest0-21swapper/309:12:583
56930399270,26cyclictest0-21swapper/309:12:583
56930399270,26cyclictest0-21swapper/308:56:593
569299992724,2cyclictest0-21swapper/211:50:112
569303992623,2cyclictest0-21swapper/311:51:583
56930399260,24cyclictest0-21swapper/311:21:003
569299992623,2cyclictest0-21swapper/209:31:592
569299992623,2cyclictest0-21swapper/208:27:592
56929999260,24cyclictest0-21swapper/210:17:592
56929999260,24cyclictest0-21swapper/208:07:002
569303992523,1cyclictest0-21swapper/312:08:593
56930399250,24cyclictest0-21swapper/311:30:593
56930399250,24cyclictest0-21swapper/310:39:003
56930399250,24cyclictest0-21swapper/307:29:003
56930399240,1cyclictest0-21swapper/310:24:003
56930399240,1cyclictest0-21swapper/308:20:593
4577091240,3ptp4l61490irq/134-eno1-TxRx-009:45:003
4577091240,3ptp4l441ktimers/312:34:593
4577091240,3ptp4l441ktimers/310:05:013
4577091240,3ptp4l441ktimers/308:15:003
4577091230,3ptp4l441ktimers/308:55:013
569299992220,1cyclictest0-21swapper/211:02:592
569299992220,1cyclictest0-21swapper/210:34:592
4577091220,3ptp4l61490irq/134-eno1-TxRx-010:54:563
4577091220,3ptp4l441ktimers/312:29:553
56929499217,5cyclictest29-21ksoftirqd/107:10:011
569299991815,2cyclictest0-21swapper/208:36:592
569299991311,1cyclictest0-21swapper/211:08:582
56929999107,2cyclictest0-21swapper/209:26:592
56929999106,2cyclictest0-21swapper/211:37:002
5692999960,5cyclictest0-21swapper/211:12:232
5692999920,1cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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