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2026-06-03 - 17:22
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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 Wed Jun 03, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
365951299122111,8cyclictest3745419-21latency_hist11:35:001
365951299117103,11cyclictest1213033-21systemd-journal10:35:001
365951299117103,11cyclictest1213033-21systemd-journal10:34:591
3659511999991,5cyclictest3724450-21kworker/u8:2+flush-179:010:40:010
3659512999890,6cyclictest3716006-21latency_hist10:05:011
3659511999787,7cyclictest3667390-21latency_hist07:35:010
3659512999686,7cyclictest3724475-21latency_hist10:30:011
3659512999588,5cyclictest3675352-21kworker/u8:1+events_unbound08:00:011
3659512999381,9cyclictest1213033-21systemd-journal09:25:001
3659512999283,7cyclictest3748611-21latency_hist11:45:011
3659512999283,7cyclictest3706169-21kworker/u8:1+flush-179:009:45:011
3659512999283,7cyclictest3706169-21kworker/u8:1+flush-179:009:45:001
3659512999178,10cyclictest1213033-21systemd-journal10:25:011
3659511999181,7cyclictest3761344-21latency_hist12:25:010
3659512999081,6cyclictest3766120-21latency_hist12:40:021
3659512999081,6cyclictest3766120-21latency_hist12:40:011
3659511999081,6cyclictest1-21systemd09:55:010
3659512998982,5cyclictest3693192-21latency_hist08:55:011
3659512998878,7cyclictest3742223-21kworker/u8:0+flush-179:011:25:271
3659512998773,12cyclictest1213033-21systemd-journal10:10:011
3659511998761,15cyclictest1213033-21systemd-journal10:20:010
3659512998676,7cyclictest3670612-21latency_hist07:45:011
3659511998671,11cyclictest3686835-21apt-get08:35:000
3659512998575,7cyclictest3756564-21latency_hist12:10:011
3659511998572,9cyclictest1213033-21systemd-journal09:05:000
3659512998476,5cyclictest3754977-21latency_hist12:05:021
3659511998477,5cyclictest3672435-21/usr/sbin/munin07:50:250
3659511998475,6cyclictest3732965-21diskstats10:55:150
3659511998475,6cyclictest3703011-21latency_hist09:25:010
3659512998373,8cyclictest3680662-21apt-get08:15:121
3659511998374,7cyclictest3711224-21latency_hist09:50:000
3659512998272,8cyclictest3727926-21apt-get10:40:111
3659512998175,4cyclictest3682255-21kworker/u8:3+flush-179:008:25:011
3659512998074,4cyclictest3664250-21kworker/u8:1+flush-179:007:30:221
3659512998070,7cyclictest3742223-21kworker/u8:0+flush-179:011:35:201
3659512997972,5cyclictest3753348-21kworker/u8:2+flush-179:012:00:001
3659512997972,5cyclictest3669257-21kworker/u8:0+events_unbound07:55:011
3659512997971,6cyclictest3695037-21kworker/u8:1+flush-179:009:20:011
3659512997868,7cyclictest3707832-21kworker/u8:0+flush-179:010:20:001
3659512997867,8cyclictest3704597-21latency_hist09:30:001
3659512997866,9cyclictest3735620-21latency_hist11:05:001
3659512997770,5cyclictest3698209-21kworker/u8:0+flush-179:009:10:251
3659511997767,7cyclictest3748849-21kworker/u8:0+flush-179:012:05:200
3659512997671,4cyclictest3707832-21kworker/u8:0+flush-179:010:54:561
3659511997669,5cyclictest3714672-21apt-get10:00:110
3659512997563,9cyclictest3690274-21apt-get08:45:121
3659512997464,8cyclictest3739303-21apt-get11:15:111
3659511997366,5cyclictest3742232-21kworker/u8:1+flush-179:011:25:000
3659512997266,5cyclictest3756554-21kworker/u8:2+flush-179:012:10:171
3659511997264,6cyclictest3753380-21latency_hist12:00:010
3659511997238,24cyclictest3737442-21/usr/sbin/munin11:10:180
3659512996961,6cyclictest3678260-21kworker/u8:3+flush-179:008:05:241
3659512996961,6cyclictest3678260-21kworker/u8:3+flush-179:008:05:231
3659511996963,4cyclictest1213033-21systemd-journal12:27:300
3659512996862,4cyclictest3706169-21kworker/u8:1+flush-179:009:55:211
3659512996859,6cyclictest3682255-21kworker/u8:3+flush-179:008:40:201
3659512996762,4cyclictest3656200-21kworker/u8:2+events_unbound07:45:161
3659512996760,4cyclictest3762930-21latency_hist12:30:011
3659511996763,3cyclictest3695037-21kworker/u8:1+events_unbound09:15:010
3659512996559,4cyclictest3656200-21kworker/u8:2+flush-179:007:20:221
3659512996454,7cyclictest3699605-21kworker/u8:3+flush-179:009:30:261
3659511996459,4cyclictest714-21Xorg11:31:590
3659512996357,4cyclictest3748849-21kworker/u8:0+flush-179:011:50:151
3659512996355,6cyclictest3740610-21kworker/u8:3+flush-179:011:20:201
3659512996352,7cyclictest3682255-21kworker/u8:3+flush-179:008:25:211
3659512996153,5cyclictest3753425-21kworker/u8:3+events_unbound12:15:201
3659512996149,9cyclictest1213033-21systemd-journal08:35:001
3659512996054,4cyclictest3656200-21kworker/u8:2+flush-179:007:15:251
3659512996052,5cyclictest3707832-21kworker/u8:0+flush-179:010:10:141
3659512996050,8cyclictest3758385-21kworker/u8:0+flush-179:012:20:221
365951199601,2cyclictest3726078-21perf10:34:590
365951199601,2cyclictest3726078-21perf10:34:590
3659511995953,5cyclictest3664250-21kworker/u8:1+flush-179:007:35:260
3659512995852,4cyclictest3699605-21kworker/u8:3+flush-179:009:35:201
3659512995851,5cyclictest3693181-21kworker/u8:2+flush-179:009:00:221
3659511995847,8cyclictest3740647-21latency_hist11:20:020
3659511995838,11cyclictest3715407-21kworker/u8:2+flush-179:010:09:300
4577091560,18ptp4l441ktimers/307:06:113
3659511995647,6cyclictest3753425-21kworker/u8:3+flush-179:012:15:160
3659512995548,5cyclictest3675352-21kworker/u8:1+flush-179:008:00:211
3659511995550,3cyclictest3744876-21kworker/u8:1+flush-179:011:40:250
3659511995549,4cyclictest3664250-21kworker/u8:1+flush-179:007:25:220
3659511995548,5cyclictest3733155-21kworker/u8:2+flush-179:011:05:220
3659511995544,8cyclictest3656200-21kworker/u8:2+events_unbound07:15:240
3659512995447,5cyclictest3733155-21kworker/u8:2+flush-179:011:05:221
3659511995447,5cyclictest3680402-21kworker/u8:1+events_unbound08:20:010
3659512995342,5cyclictest3691591-21kworker/u8:0+flush-179:008:55:121
3659512995342,5cyclictest3691591-21kworker/u8:0+flush-179:008:55:111
3659511995346,5cyclictest3718103-21apt-get10:10:120
3659511995345,6cyclictest1213033-21systemd-journal07:50:000
3659511995343,7cyclictest3753425-21kworker/u8:3+flush-179:012:30:210
3659511995343,7cyclictest3748849-21kworker/u8:0+events_unbound11:50:230
3659519995249,2cyclictest0-21swapper/311:31:593
3659511995246,4cyclictest3678260-21kworker/u8:3+flush-179:008:10:160
365951999510,4cyclictest3717855-21turbostat10:10:013
3659512995142,7cyclictest1213033-21systemd-journal09:09:591
3659511995144,5cyclictest3743831-21latency_hist11:30:000
3659519995048,1cyclictest0-21swapper/308:34:593
3659512995045,4cyclictest3656200-21kworker/u8:2+flush-179:007:10:251
3659512995041,6cyclictest3707832-21kworker/u8:0+flush-179:010:45:201
3659511995041,7cyclictest3659408-21latency_hist07:10:010
365951199501,46cyclictest0-21swapper/012:10:140
3659511994940,7cyclictest3669257-21kworker/u8:0+flush-179:007:55:250
3659511994936,12cyclictest3730852-21turbostat10:54:550
3659519994834,12cyclictest3726068-21turbostat10:34:593
3659519994834,12cyclictest3726068-21turbostat10:34:593
3659512994843,4cyclictest3753425-21kworker/u8:3+events_unbound12:30:241
3659512994842,4cyclictest3664250-21kworker/u8:1+flush-179:007:25:161
3659511994843,4cyclictest3698209-21kworker/u8:0+flush-179:009:25:300
3659512994733,7cyclictest3682255-21kworker/u8:3+events_unbound08:35:001
3659511994742,4cyclictest3721964-21kworker/u8:1+events_unbound10:25:270
3659511994741,5cyclictest3748849-21kworker/u8:0+events_unbound12:00:230
3659511994737,6cyclictest3677221-21kworker/u8:0+events_unbound08:20:250
365951199471,5cyclictest3677492-21apt-get08:05:140
365951199471,5cyclictest3677492-21apt-get08:05:140
365951999460,44cyclictest3672209-21turbostat07:50:003
3659512994641,4cyclictest3678260-21kworker/u8:3+flush-179:008:10:251
3659511994533,10cyclictest3693247-21latency_hist08:55:010
365951199451,7cyclictest3735629-21ls11:04:590
365951199450,27cyclictest0-21swapper/008:45:140
365951999440,43cyclictest3706199-21turbostat09:34:593
365951999440,42cyclictest3670629-21turbostat07:45:013
3659512994439,4cyclictest3738226-21kworker/u8:1+flush-179:011:14:561
365951999430,1cyclictest0-21swapper/310:57:003
3659516994340,2cyclictest0-21swapper/212:09:592
3659511994336,5cyclictest3706184-21latency_hist09:35:000
3659511994335,6cyclictest3715407-21kworker/u8:2+flush-179:010:15:220
3659519994240,1cyclictest0-21swapper/308:23:003
3659512994235,6cyclictest3706169-21kworker/u8:1+events_unbound09:45:201
3659511994230,9cyclictest1213033-21systemd-journal10:50:000
365951199420,30cyclictest3675396-21apt-get08:00:030
3659519994139,1cyclictest0-21swapper/310:19:583
365951999410,39cyclictest3661036-21turbostat07:15:003
365951699410,37cyclictest0-21swapper/210:45:012
365951699410,1cyclictest0-21swapper/209:04:552
3659511994139,1cyclictest3669257-21kworker/u8:0+flush-179:007:40:220
3659511994136,4cyclictest3656200-21kworker/u8:2+flush-179:007:10:180
3659511994134,5cyclictest3706169-21kworker/u8:1+flush-179:009:55:150
3659511994125,15cyclictest3664204-21sshd07:24:190
365951199411,38cyclictest3694808-21munin-run09:00:010
365951199411,38cyclictest3694808-21munin-run09:00:000
3659519994033,6cyclictest3756582-21turbostat12:10:003
365951999400,38cyclictest3758160-21turbostat12:15:003
365951999400,32cyclictest3675390-21turbostat08:00:003
365951699400,37cyclictest0-21swapper/210:17:592
3659512994034,5cyclictest3727705-21kworker/u8:1+events_unbound10:55:121
365951199400,32cyclictest3701440-21sendmail09:20:010
3659519993934,4cyclictest3680424-21turbostat08:15:003
3659519993933,5cyclictest3701421-21turbostat09:20:003
3659519993933,4cyclictest3738803-21turbostat11:15:013
3659519993932,5cyclictest3759760-21turbostat12:20:003
365951999390,31cyclictest3665816-21turbostat07:30:003
3659512993933,4cyclictest3748849-21kworker/u8:0+events_unbound11:45:201
365951199391,2cyclictest714-21Xorg11:45:590
3659519993835,1cyclictest0-21swapper/307:34:593
3659519993834,3cyclictest3716019-21turbostat10:05:003
3659519993832,5cyclictest3714416-21turbostat10:00:003
3659519993832,4cyclictest3762948-21turbostat12:30:013
3659519993832,4cyclictest3694820-21turbostat09:00:013
3659519993832,4cyclictest3694820-21turbostat09:00:003
3659516993835,2cyclictest0-21swapper/207:42:592
3659516993834,2cyclictest0-21swapper/208:09:562
3659516993834,2cyclictest0-21swapper/208:09:562
365951699380,35cyclictest0-21swapper/212:14:552
365951699380,1cyclictest0-21swapper/208:23:002
3659511993835,2cyclictest0-21swapper/010:41:000
3659519993730,5cyclictest3703026-21turbostat09:25:003
365951999370,36cyclictest0-21swapper/309:46:583
365951999370,36cyclictest0-21swapper/309:37:003
3659516993734,2cyclictest0-21swapper/210:50:012
3659516993734,2cyclictest0-21swapper/210:21:592
3659516993734,2cyclictest0-21swapper/208:54:552
3659516993734,2cyclictest0-21swapper/207:34:552
365951699370,35cyclictest0-21swapper/212:20:592
365951699370,29cyclictest0-21swapper/211:43:592
365951699370,1cyclictest0-21swapper/208:19:552
3659511993732,3cyclictest3747065-21systemd-run11:40:000
3659511993731,5cyclictest3695037-21kworker/u8:1+events_unbound09:05:140
3659511993729,6cyclictest510-21rs:main0
3659511993716,20cyclictest0-21swapper/009:35:240
3659511993716,19cyclictest3684683-21phc2sys08:25:230
3659519993634,1cyclictest0-21swapper/312:24:593
3659519993634,1cyclictest0-21swapper/309:52:003
365951999360,35cyclictest0-21swapper/311:49:553
365951999360,35cyclictest0-21swapper/311:09:543
365951999360,35cyclictest0-21swapper/310:49:553
365951999360,35cyclictest0-21swapper/309:13:593
365951999360,35cyclictest0-21swapper/308:50:593
365951999360,1cyclictest0-21swapper/310:40:003
3659516993634,1cyclictest0-21swapper/211:34:582
3659516993633,2cyclictest0-21swapper/210:33:592
3659516993633,2cyclictest0-21swapper/210:33:592
3659511993615,20cyclictest0-21swapper/009:40:160
3659511993615,20cyclictest0-21swapper/009:40:150
3659519993530,4cyclictest3677257-21turbostat08:05:013
3659516993533,1cyclictest0-21swapper/211:20:002
3659516993532,1cyclictest0-21swapper/209:54:592
3659512993524,9cyclictest1213033-21systemd-journal10:40:001
3659511993529,4cyclictest3765767-21switchtime12:35:230
3659511993529,4cyclictest3765767-21switchtime12:35:230
3659511993518,15cyclictest0-21swapper/008:35:590
3659516993430,2cyclictest0-21swapper/208:43:592
365951699340,2cyclictest0-21swapper/207:20:132
3659519993331,1cyclictest0-21swapper/310:29:563
3659519993331,1cyclictest0-21swapper/309:26:003
3659519993328,4cyclictest3673802-21turbostat07:55:003
3659519993326,6cyclictest0-21swapper/310:54:553
3659516993330,2cyclictest0-21swapper/211:46:592
365951699330,31cyclictest0-21swapper/208:45:142
365951699330,2cyclictest0-21swapper/211:25:142
365951699330,1cyclictest0-21swapper/208:00:022
3659512993328,4cyclictest3707832-21kworker/u8:0+flush-179:009:53:391
3659516993229,2cyclictest0-21swapper/209:44:592
3659516993229,2cyclictest0-21swapper/209:44:592
3659519993124,6cyclictest0-21swapper/307:20:143
3659516993129,1cyclictest0-21swapper/212:39:592
3659516993129,1cyclictest0-21swapper/212:39:592
3659516993128,2cyclictest0-21swapper/208:39:552
3659516993128,2cyclictest0-21swapper/207:58:592
365951699310,2cyclictest0-21swapper/212:25:142
365951699310,29cyclictest0-21swapper/207:50:142
3659519993028,1cyclictest0-21swapper/308:44:553
3659519993028,1cyclictest0-21swapper/307:16:593
3659519993024,5cyclictest0-21swapper/311:25:143
3659519993024,5cyclictest0-21swapper/308:45:143
365951999300,27cyclictest0-21swapper/307:35:143
3659516993026,2cyclictest0-21swapper/209:33:592
3659516993023,6cyclictest0-21swapper/212:15:592
3659516993022,2cyclictest0-21swapper/210:06:592
3659516993021,2cyclictest0-21swapper/210:55:112
3659512993022,5cyclictest321-21hwrng07:36:591
3659519992927,1cyclictest0-21swapper/311:03:583
365951999290,1cyclictest0-21swapper/311:59:553
3659516992927,1cyclictest0-21swapper/209:39:592
3659516992926,2cyclictest0-21swapper/209:57:002
3659516992926,2cyclictest0-21swapper/208:55:132
3659516992926,2cyclictest0-21swapper/208:55:132
3659516992926,2cyclictest0-21swapper/207:35:142
365951699290,2cyclictest0-21swapper/212:00:122
365951699290,27cyclictest0-21swapper/211:20:132
365951699290,27cyclictest0-21swapper/210:35:122
365951699290,27cyclictest0-21swapper/210:10:142
365951699290,27cyclictest0-21swapper/209:19:552
365951699290,27cyclictest0-21swapper/209:10:132
365951699290,27cyclictest0-21swapper/208:25:142
3659519992824,2cyclictest0-21swapper/310:41:003
3659519992821,6cyclictest0-21swapper/309:04:563
365951999280,2cyclictest0-21swapper/310:20:013
365951999280,26cyclictest0-21swapper/311:20:123
365951999280,21cyclictest0-21swapper/311:15:033
365951699280,26cyclictest0-21swapper/207:18:592
365951699280,26cyclictest0-21swapper/207:10:142
365951999270,1cyclictest0-21swapper/308:15:133
3659516992725,1cyclictest0-21swapper/208:34:582
3659516992724,2cyclictest0-21swapper/209:20:112
3659516992723,2cyclictest0-21swapper/211:05:582
365951699270,25cyclictest0-21swapper/211:38:002
365951699270,25cyclictest0-21swapper/207:47:592
4577091260,6ptp4l61490irq/134-eno1-TxRx-012:05:003
4577091260,6ptp4l441ktimers/312:34:563
4577091260,6ptp4l441ktimers/311:44:553
4577091260,6ptp4l441ktimers/311:40:003
4577091260,5ptp4l441ktimers/308:39:553
3659519992624,1cyclictest0-21swapper/308:25:133
3659519992621,4cyclictest3678830-21turbostat08:10:003
3659519992621,4cyclictest3678830-21turbostat08:10:003
365951999260,24cyclictest0-21swapper/312:35:593
365951999260,24cyclictest0-21swapper/312:35:593
3659516992623,2cyclictest0-21swapper/208:13:592
3659516992622,2cyclictest0-21swapper/211:58:002
365951699260,24cyclictest0-21swapper/212:34:002
365951699260,24cyclictest0-21swapper/209:45:042
365951699260,24cyclictest0-21swapper/209:08:002
365951699260,24cyclictest0-21swapper/207:26:002
4577091250,5ptp4l441ktimers/310:14:573
4577091250,5ptp4l441ktimers/309:10:003
4577091250,4ptp4l441ktimers/311:55:013
3659516992521,2cyclictest0-21swapper/210:28:592
4577091240,5ptp4l61490irq/134-eno1-TxRx-009:44:563
4577091240,5ptp4l61490irq/134-eno1-TxRx-009:44:553
3659516992421,2cyclictest0-21swapper/211:53:592
3659516992017,2cyclictest0-21swapper/211:00:142
3659516992017,2cyclictest0-21swapper/209:26:592
365951299190,2cyclictest3659390-1kworker/1:0H+kblockd07:10:011
365951699129,2cyclictest0-21swapper/210:03:592
365951699119,1cyclictest0-21swapper/211:10:132
36595169996,2cyclictest0-21swapper/210:50:122
36595169930,2cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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