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2026-03-16 - 22:56
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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 16, 2026 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3515444999990,6cyclictest3621208-21latency_hist12:40:010
3515446999688,5cyclictest3518493-21kworker/u8:1+events_unbound08:05:221
3515444999483,8cyclictest3534446-21kworker/u8:0+flush-179:008:35:000
3515446999384,6cyclictest3526545-21kworker/u8:2+events_unbound08:10:261
3515446998880,5cyclictest3605326-21kworker/u8:2+events_unbound11:55:231
3515446998779,6cyclictest3597328-21kworker/u8:1+flush-179:011:40:241
3515446998677,7cyclictest3518493-21kworker/u8:1+flush-179:008:00:261
3515446998580,4cyclictest3565800-21kworker/u8:1+flush-179:010:30:231
3515444998476,5cyclictest3566599-21kworker/u8:3+flush-179:010:35:000
3515446998377,4cyclictest3609477-21kworker/u8:0+events_unbound12:35:021
3515446998277,4cyclictest3604761-21kworker/u8:0+flush-179:011:50:241
3515446998065,5cyclictest3566599-21kworker/u8:3+events_unbound10:45:211
3515446997972,5cyclictest3610034-21kworker/u8:3+flush-179:012:30:011
3515446997972,5cyclictest3534446-21kworker/u8:0+flush-179:009:00:201
3515446997970,6cyclictest3600511-21latency_hist11:35:011
3515446997871,5cyclictest3534446-21kworker/u8:0+events_unbound08:40:251
3515446997870,5cyclictest3518493-21kworker/u8:1+events_unbound07:20:011
3515444997865,10cyclictest3585943-21apt-get10:49:590
3515446997768,6cyclictest3577972-21latency_hist10:25:001
3515446997768,6cyclictest3566599-21kworker/u8:3+events_unbound10:35:181
3515446997767,8cyclictest3537709-21kworker/u8:1+flush-179:008:30:251
3515446997569,4cyclictest3518493-21kworker/u8:1+flush-179:007:55:001
3515446997568,5cyclictest3534446-21kworker/u8:0+events_unbound08:40:011
3515446997468,5cyclictest3587749-21kworker/u8:3+flush-179:010:55:001
3515444997362,8cyclictest3536049-21latency_hist08:15:010
3515446997165,5cyclictest3565800-21kworker/u8:1+events_unbound09:50:231
3515446997165,4cyclictest3610034-21kworker/u8:3+events_unbound12:10:241
3515446997164,5cyclictest3505576-21kworker/u8:2+events_unbound07:10:241
3515446997159,5cyclictest3552286-21kworker/u8:1+events_unbound09:05:231
3515446997159,5cyclictest3552286-21kworker/u8:1+events_unbound09:05:231
3515444997165,4cyclictest3523329-21kworker/u8:0+events_unbound07:40:250
3515444997160,8cyclictest3569995-21/usr/sbin/munin10:00:230
3515446997065,3cyclictest3534446-21kworker/u8:0+events_unbound09:20:141
3515446997061,7cyclictest3590402-21kworker/u8:0+flush-179:011:30:001
3515446997060,7cyclictest3571402-21kworker/u8:2+flush-179:010:10:161
3515446996962,6cyclictest3600514-21kworker/u8:3+events_unbound11:35:231
3515446996962,6cyclictest3600514-21kworker/u8:3+events_unbound11:35:231
3515446996961,5cyclictest3587749-21kworker/u8:3+events_unbound10:55:191
3515446996860,6cyclictest3587749-21kworker/u8:3+events_unbound11:00:181
3515446996759,6cyclictest3609477-21kworker/u8:0+flush-179:012:20:001
3515446996759,5cyclictest3595715-21kworker/u8:3+flush-179:011:20:191
351544499670,66cyclictest0-21swapper/011:53:590
3515446996661,4cyclictest3609477-21kworker/u8:0+flush-179:012:39:551
3515446996559,4cyclictest3526545-21kworker/u8:2+flush-179:008:15:251
3515444996557,5cyclictest3534446-21kworker/u8:0+events_unbound09:55:010
3515446996458,4cyclictest3566599-21kworker/u8:3+flush-179:010:00:211
3515446996458,4cyclictest3523329-21kworker/u8:0+flush-179:007:50:001
3515446996457,4cyclictest3534446-21kworker/u8:0+events_unbound08:55:121
3515446996357,5cyclictest3565800-21kworker/u8:1+flush-179:010:25:211
3515446996356,4cyclictest3542655-21kworker/u8:2+flush-179:008:50:151
3515446996256,4cyclictest3518493-21kworker/u8:1+flush-179:007:35:211
3515446996255,5cyclictest3590402-21kworker/u8:0+flush-179:011:15:211
3515444996250,10cyclictest3581690-21diskstats10:35:140
3515449996159,1cyclictest0-21swapper/209:44:592
3515444996154,5cyclictest714-21Xorg11:20:590
3515449996057,2cyclictest0-21swapper/209:27:592
3515446996055,4cyclictest3523329-21kworker/u8:0+flush-179:007:55:261
3515446996052,6cyclictest3600514-21kworker/u8:3+flush-179:011:45:271
3515446996050,7cyclictest3615093-21/usr/sbin/munin12:20:221
3515446996050,7cyclictest3518493-21kworker/u8:1+events_unbound07:25:221
3515446996050,7cyclictest3518493-21kworker/u8:1+events_unbound07:25:211
3515444996054,4cyclictest714-21Xorg07:53:590
3515449995956,2cyclictest0-21swapper/208:48:592
3515446995953,4cyclictest3566599-21kworker/u8:3+flush-179:010:15:201
3515446995952,5cyclictest3537709-21kworker/u8:1+events_unbound08:25:001
3515444995951,6cyclictest3505576-21kworker/u8:2+flush-179:007:15:010
3515446995853,4cyclictest3610034-21kworker/u8:3+events_unbound12:05:211
3515446995851,5cyclictest3585907-21kworker/u8:2+flush-179:011:10:141
3515446995851,5cyclictest3585907-21kworker/u8:2+flush-179:011:10:131
3515446995850,5cyclictest3542655-21kworker/u8:2+events_unbound09:15:001
3515446995845,5cyclictest3547437-21kworker/u8:1+events_unbound08:50:001
3515446995749,5cyclictest3534446-21kworker/u8:0+events_unbound09:55:191
3515446995749,5cyclictest3534446-21kworker/u8:0+events_unbound09:55:191
3515446995744,6cyclictest3534446-21kworker/u8:0+events_unbound09:40:221
3515446995651,4cyclictest3534446-21kworker/u8:0+flush-179:008:25:241
3515444995648,6cyclictest3518563-21true07:20:000
3515444995647,6cyclictest3605291-21latency_hist11:50:000
3515446995549,5cyclictest3534446-21kworker/u8:0+flush-179:009:45:151
3515449995451,2cyclictest0-21swapper/207:54:002
3515446995448,4cyclictest3565800-21kworker/u8:1+flush-179:010:45:011
3515444995444,8cyclictest3608722-21/usr/sbin/munin12:00:240
351544499541,49cyclictest1-21systemd11:00:010
3515446995347,4cyclictest3558077-21kworker/u8:1+flush-179:009:25:101
4577091510,15ptp4l61490irq/134-eno1-TxRx-007:10:003
3515446995146,4cyclictest3566599-21kworker/u8:3+flush-179:010:05:251
3515444995141,7cyclictest3520116-21latency_hist07:25:010
3515444995042,6cyclictest3558608-21latency_hist09:25:010
3515444995042,6cyclictest3531267-21latency_hist08:00:000
3515444995039,8cyclictest3584577-21kworker/u8:0+flush-179:010:50:210
3515444994939,7cyclictest510-21rs:main0
3515446994839,7cyclictest3515306-21latency_hist07:10:031
3515444994845,2cyclictest3610034-21kworker/u8:3+events_unbound12:05:220
3515444994838,8cyclictest3565800-21kworker/u8:1+flush-179:010:40:220
3515446994742,4cyclictest3609477-21kworker/u8:0+flush-179:012:00:241
3515446994742,4cyclictest3518493-21kworker/u8:1+flush-179:007:20:211
3515444994740,5cyclictest3523329-21kworker/u8:0+events_unbound07:45:220
3515444994640,4cyclictest3539256-21apt-get08:25:010
3515444994638,6cyclictest266-21systemd-journal11:19:590
3515444994637,4cyclictest3562039-21apt-get09:35:130
3515444994540,3cyclictest3523327-21systemd-run07:35:000
3515444994539,5cyclictest3590402-21kworker/u8:0+flush-179:011:00:230
3515444994537,6cyclictest3566599-21kworker/u8:3+events_unbound10:20:250
351544499449,33cyclictest0-21swapper/011:10:130
351544499449,33cyclictest0-21swapper/011:10:130
3515444994433,8cyclictest3542655-21kworker/u8:2+flush-179:009:10:210
3515444994428,6cyclictest3614847-21latency_hist12:20:010
3515446994338,4cyclictest3518493-21kworker/u8:1+flush-179:007:30:191
3515444994335,6cyclictest266-21systemd-journal09:58:220
3515444994335,6cyclictest266-21systemd-journal09:58:210
3515444994334,7cyclictest3566577-21grep09:50:000
3515444994334,7cyclictest266-21systemd-journal11:59:560
3515446994237,4cyclictest3534446-21kworker/u8:0+events_unbound09:35:131
3515446994236,5cyclictest3523329-21kworker/u8:0+flush-179:007:40:201
3515444994235,5cyclictest3590402-21kworker/u8:0+flush-179:011:25:170
3515446994138,2cyclictest0-21swapper/109:16:591
3515446994136,4cyclictest3590402-21kworker/u8:0+events_unbound11:05:231
3515444994136,4cyclictest3590402-21kworker/u8:0+events_unbound11:10:010
3515444994132,7cyclictest3558077-21kworker/u8:1+flush-179:009:30:000
3515450994038,1cyclictest0-21swapper/310:42:593
3515450994035,4cyclictest3608474-21turbostat12:00:013
351544699401,2cyclictest714-21Xorg09:31:591
351544699401,2cyclictest714-21Xorg09:31:591
3515444994036,2cyclictest3575033-21apt-get10:15:130
3515444994035,4cyclictest0-21swapper/008:57:000
3515444994035,3cyclictest714-21Xorg08:48:590
3515444994032,6cyclictest3609477-21kworker/u8:0+flush-179:012:15:010
3515444994032,6cyclictest0-21swapper/008:50:130
3515444994030,7cyclictest3539244-21idleruntime-cro08:25:000
3515444994030,7cyclictest3518493-21kworker/u8:1+flush-179:007:30:010
3515444993934,3cyclictest3552279-21systemd-run09:05:010
351544499392,6cyclictest3616697-21apt-get12:25:110
351544499391,2cyclictest714-21Xorg09:43:590
3515449993835,2cyclictest0-21swapper/211:06:592
351544999380,36cyclictest0-21swapper/211:10:592
351544999380,36cyclictest0-21swapper/211:10:582
3515444993835,2cyclictest0-21swapper/008:01:000
3515444993831,5cyclictest3565800-21kworker/u8:1+flush-179:010:25:010
3515444993824,11cyclictest3533418-21diskstats08:05:140
3515444993821,10cyclictest3515439-21cyclictest10:05:240
3515450993735,1cyclictest0-21swapper/309:14:553
3515450993735,1cyclictest0-21swapper/308:33:593
3515450993734,2cyclictest0-21swapper/311:37:593
3515450993734,2cyclictest0-21swapper/311:37:583
3515450993734,2cyclictest0-21swapper/307:54:593
3515449993734,2cyclictest0-21swapper/211:22:582
351544999370,2cyclictest0-21swapper/210:45:592
3515444993732,3cyclictest3521741-21systemd-run07:30:010
351544499371,34cyclictest714-21Xorg11:43:000
3515450993634,1cyclictest0-21swapper/310:16:593
351545099360,35cyclictest0-21swapper/312:14:543
351545099360,35cyclictest0-21swapper/311:24:593
351545099360,35cyclictest0-21swapper/310:54:553
351545099360,35cyclictest0-21swapper/308:19:553
351545099360,1cyclictest0-21swapper/308:29:593
351544999360,34cyclictest0-21swapper/208:05:002
351544999360,2cyclictest0-21swapper/207:58:582
3515444993629,3cyclictest3573446-21apt-get10:10:140
4577091350,28ptp4l61490irq/134-eno1-TxRx-012:35:133
3515450993533,1cyclictest0-21swapper/309:07:593
3515450993533,1cyclictest0-21swapper/309:07:593
3515450993533,1cyclictest0-21swapper/308:56:003
3515450993533,1cyclictest0-21swapper/308:41:593
3515450993530,4cyclictest3560204-21turbostat09:30:013
351545099350,34cyclictest0-21swapper/311:29:553
351545099350,1cyclictest0-21swapper/311:33:593
351545099350,1cyclictest0-21swapper/310:14:593
3515449993532,2cyclictest0-21swapper/211:29:002
351544999350,1cyclictest0-21swapper/212:40:002
351544999350,1cyclictest0-21swapper/209:47:592
3515450993432,1cyclictest0-21swapper/312:23:593
3515450993432,1cyclictest0-21swapper/309:20:593
3515450993432,1cyclictest0-21swapper/307:26:593
3515450993432,1cyclictest0-21swapper/307:26:583
3515449993432,1cyclictest0-21swapper/211:19:592
3515449993432,1cyclictest0-21swapper/207:29:582
3515449993432,1cyclictest0-21swapper/207:29:582
3515444993430,2cyclictest3602196-21latency_hist11:40:020
3515444993430,2cyclictest3602196-21latency_hist11:40:010
3515450993331,1cyclictest0-21swapper/311:44:003
3515450993331,1cyclictest0-21swapper/311:11:593
3515450993331,1cyclictest0-21swapper/311:11:593
3515449993330,2cyclictest0-21swapper/210:31:592
3515449993330,2cyclictest0-21swapper/210:16:582
3515444993328,3cyclictest3619615-21idleruntime-cro12:35:010
3515450993230,1cyclictest0-21swapper/308:39:003
3515450993230,1cyclictest0-21swapper/307:44:563
3515449993230,1cyclictest0-21swapper/211:39:592
3515449993230,1cyclictest0-21swapper/211:39:582
3515449993229,2cyclictest0-21swapper/212:28:002
3515449993229,2cyclictest0-21swapper/208:17:592
3515444993229,2cyclictest714-21Xorg09:06:590
3515444993229,2cyclictest714-21Xorg09:06:590
3515450993129,1cyclictest0-21swapper/311:47:583
3515450993129,1cyclictest0-21swapper/309:44:593
3515450993129,1cyclictest0-21swapper/309:34:593
3515450993129,1cyclictest0-21swapper/309:34:593
3515449993129,1cyclictest0-21swapper/212:19:582
3515449993128,2cyclictest0-21swapper/209:38:592
3515450993029,1cyclictest0-21swapper/307:34:593
3515450993028,1cyclictest0-21swapper/308:54:593
3515449993028,1cyclictest0-21swapper/210:44:592
3515449993027,2cyclictest0-21swapper/210:23:592
3515449993027,2cyclictest0-21swapper/209:30:132
3515449993027,2cyclictest0-21swapper/209:30:132
3515449993027,2cyclictest0-21swapper/209:10:122
3515449993027,2cyclictest0-21swapper/208:40:132
3515449993027,2cyclictest0-21swapper/207:43:582
351544999300,22cyclictest0-21swapper/209:20:132
3515450992927,1cyclictest0-21swapper/311:04:593
3515450992927,1cyclictest0-21swapper/309:35:593
351545099290,2cyclictest0-21swapper/312:00:133
351545099290,28cyclictest0-21swapper/312:17:593
351545099290,28cyclictest0-21swapper/308:05:123
3515449992926,2cyclictest0-21swapper/210:25:132
3515449992926,2cyclictest0-21swapper/208:20:132
3515449992926,2cyclictest0-21swapper/207:20:132
351544999290,28cyclictest0-21swapper/210:05:022
351544999290,28cyclictest0-21swapper/208:25:022
351544999290,27cyclictest0-21swapper/208:35:122
3515444992926,2cyclictest714-21Xorg08:36:000
3515444992922,4cyclictest0-21swapper/009:30:200
3515444992922,4cyclictest0-21swapper/009:30:200
3515444992920,7cyclictest266-21systemd-journal08:20:000
351544499290,2cyclictest714-21Xorg08:44:590
4577091280,7ptp4l441ktimers/311:00:013
4577091280,6ptp4l61490irq/134-eno1-TxRx-010:50:003
4577091280,6ptp4l61490irq/134-eno1-TxRx-007:25:003
4577091280,6ptp4l441ktimers/309:50:003
4577091280,6ptp4l441ktimers/307:14:573
3515450992826,1cyclictest0-21swapper/308:23:003
3515450992826,1cyclictest0-21swapper/307:45:143
351545099280,27cyclictest0-21swapper/309:50:133
351545099280,27cyclictest0-21swapper/309:00:123
351545099280,27cyclictest0-21swapper/308:00:143
351545099280,27cyclictest0-21swapper/307:35:133
351545099280,26cyclictest0-21swapper/312:30:123
351545099280,26cyclictest0-21swapper/310:25:133
351545099280,26cyclictest0-21swapper/310:05:023
3515449992826,1cyclictest0-21swapper/211:54:582
3515449992826,1cyclictest0-21swapper/210:35:112
3515449992825,2cyclictest0-21swapper/210:55:122
3515449992825,2cyclictest0-21swapper/209:04:562
3515449992825,2cyclictest0-21swapper/208:30:112
351544999280,26cyclictest0-21swapper/210:03:592
351544999280,26cyclictest0-21swapper/208:10:142
3515444992817,7cyclictest714-21Xorg11:33:590
4577091270,6ptp4l61490irq/134-eno1-TxRx-011:09:553
4577091270,6ptp4l441ktimers/310:40:013
4577091270,6ptp4l441ktimers/310:25:013
4577091270,6ptp4l441ktimers/310:05:003
4577091270,6ptp4l441ktimers/307:19:553
3515450992725,1cyclictest0-21swapper/308:48:593
351545099270,26cyclictest0-21swapper/310:34:003
351545099270,26cyclictest0-21swapper/309:16:593
351545099270,26cyclictest0-21swapper/307:55:583
3515449992724,2cyclictest0-21swapper/209:17:592
3515449992724,2cyclictest0-21swapper/207:10:592
351544999270,26cyclictest0-21swapper/208:51:592
351544999270,25cyclictest0-21swapper/207:15:372
351544999270,24cyclictest0-21swapper/211:05:002
3515444992722,4cyclictest3515457-21latency_hist07:10:020
351544499270,2cyclictest0-21swapper/007:35:130
4577091260,6ptp4l61490irq/134-eno1-TxRx-012:09:593
4577091260,5ptp4l441ktimers/311:19:543
4577091260,4ptp4l441ktimers/309:55:013
4577091260,4ptp4l441ktimers/309:55:013
3515449992624,1cyclictest0-21swapper/211:45:002
3515449992624,1cyclictest0-21swapper/207:35:002
3515449992623,2cyclictest0-21swapper/209:08:582
3515449992623,2cyclictest0-21swapper/209:08:582
3515449992623,2cyclictest0-21swapper/208:06:002
351544999260,24cyclictest0-21swapper/212:10:002
351544999260,24cyclictest0-21swapper/211:59:592
351544999260,24cyclictest0-21swapper/209:53:592
351544999260,24cyclictest0-21swapper/207:37:592
3515444992621,4cyclictest3616302-21unixbench-2d12:20:240
4577091250,5ptp4l61490irq/134-eno1-TxRx-011:54:553
4577091250,4ptp4l441ktimers/312:30:003
3515450992522,2cyclictest0-21swapper/308:11:583
3515449992523,1cyclictest0-21swapper/210:50:582
351544999250,2cyclictest0-21swapper/212:13:592
351544999250,2cyclictest0-21swapper/209:58:592
351544999250,2cyclictest0-21swapper/209:58:592
3515449992422,1cyclictest0-21swapper/212:04:592
3515449992422,1cyclictest0-21swapper/207:50:002
3515449992320,2cyclictest0-21swapper/212:20:132
3515449992220,1cyclictest0-21swapper/208:59:592
3515449992219,2cyclictest0-21swapper/212:30:582
3515449992119,1cyclictest0-21swapper/211:49:592
3515449991613,2cyclictest0-21swapper/211:31:002
351544999118,2cyclictest0-21swapper/210:10:142
35154499930,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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