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2026-05-06 - 05:39
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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 May 06, 2026 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5798499910996,10cyclictest586458-21apt-get19:30:000
5798499910696,8cyclictest584864-21latency_hist19:25:010
5798499910598,5cyclictest680398-21kworker/u8:1+events_unbound00:25:010
5798549910191,8cyclictest1213033-21systemd-journal00:40:001
579849999386,4cyclictest665063-21kworker/u8:1+flush-179:023:35:000
579849999386,4cyclictest665063-21kworker/u8:1+flush-179:023:34:590
579849999082,5cyclictest576783-21kworker/u8:2+events_unbound19:35:140
579849998775,9cyclictest1213033-21systemd-journal20:15:000
579849998679,5cyclictest678586-21kworker/u8:2+flush-179:000:20:010
579849998678,6cyclictest588303-21kworker/u8:0+events_unbound19:45:260
579849998578,4cyclictest606374-21kworker/u8:3+flush-179:021:20:140
579849998578,4cyclictest606374-21kworker/u8:3+flush-179:021:20:140
579849998577,5cyclictest665063-21kworker/u8:1+flush-179:023:45:230
579854998363,18cyclictest678586-21kworker/u8:2+flush-179:000:15:011
579854998163,13cyclictest2096592-21cups-browsed00:00:011
579849998173,5cyclictest648039-21kworker/u8:0+flush-179:023:40:150
579849998072,5cyclictest619061-21kworker/u8:1+events_unbound21:45:240
579849997973,4cyclictest599991-21kworker/u8:0+events_unbound20:30:240
579849997972,4cyclictest573676-21kworker/u8:0+flush-179:019:10:220
579849997872,4cyclictest635799-21kworker/u8:0+events_unbound22:10:240
579849997869,7cyclictest625479-21kworker/u8:2+flush-179:021:55:150
579849997770,4cyclictest657587-21kworker/u8:2+events_unbound23:25:140
579849997767,7cyclictest665063-21kworker/u8:1+flush-179:023:35:140
579849997766,8cyclictest595736-21kworker/u8:2+flush-179:020:00:190
579849997668,5cyclictest643458-21/usr/sbin/munin22:25:250
579854997569,4cyclictest659366-21/usr/sbin/munin23:15:231
579849997468,4cyclictest644852-21kworker/u8:3+flush-179:022:35:260
579849997466,5cyclictest667154-21kworker/u8:2+events_unbound23:50:190
579854997364,7cyclictest643221-21latency_hist22:25:011
579854997364,6cyclictest603175-21kworker/u8:2+flush-179:020:35:001
579849997367,5cyclictest584270-21kworker/u8:1+flush-179:019:30:250
579849997367,4cyclictest678001-21kworker/u8:0+flush-179:000:35:150
579849997367,4cyclictest651200-21kworker/u8:3+events_unbound22:55:140
579849997265,6cyclictest588303-21kworker/u8:0+flush-179:019:40:130
579849997260,4cyclictest678001-21kworker/u8:0+events_unbound00:25:240
579854997164,4cyclictest585119-21apt-get19:25:121
579854997161,7cyclictest655957-21latency_hist23:05:021
579849997165,4cyclictest619061-21kworker/u8:1+flush-179:021:50:180
579849997163,5cyclictest619061-21kworker/u8:1+events_unbound21:40:160
579849997063,5cyclictest643208-21kworker/u8:2+events_unbound22:40:190
579849997060,8cyclictest1213033-21systemd-journal00:05:010
579849996962,5cyclictest619061-21kworker/u8:1+flush-179:021:35:240
579849996962,5cyclictest599991-21kworker/u8:0+events_unbound20:10:020
579849996962,4cyclictest635799-21kworker/u8:0+flush-179:022:05:130
579854996854,11cyclictest630262-21kworker/u8:3+flush-179:022:00:211
579849996858,7cyclictest648039-21kworker/u8:0+events_unbound23:00:150
579849996857,9cyclictest608163-21kworker/u8:1+flush-179:020:55:210
57985999670,65cyclictest0-21swapper/319:16:593
579854996760,5cyclictest611121-21latency_hist20:45:011
579854996759,6cyclictest595736-21kworker/u8:2+flush-179:020:10:001
579849996762,3cyclictest648039-21kworker/u8:0+flush-179:022:45:210
579849996761,4cyclictest638475-21kworker/u8:2+flush-179:022:15:160
579849996759,6cyclictest573676-21kworker/u8:0+flush-179:019:15:190
579849996758,7cyclictest673528-21kworker/u8:3+flush-179:000:10:140
579849996758,7cyclictest609522-21latency_hist20:40:000
579849996658,5cyclictest652761-21latency_hist22:55:010
579849996658,5cyclictest599991-21kworker/u8:0+events_unbound20:25:140
579849996653,4cyclictest606374-21kworker/u8:3+events_unbound20:50:240
579849996559,4cyclictest593325-21kworker/u8:1+flush-179:019:55:240
579849996557,6cyclictest594926-21latency_hist19:55:000
579849996553,4cyclictest665063-21kworker/u8:1+events_unbound23:55:140
579854996252,7cyclictest598382-21latency_hist20:05:021
579849996252,8cyclictest617742-21apt-get21:05:130
579854996052,6cyclictest667109-21latency_hist23:40:011
579854996050,8cyclictest606374-21kworker/u8:3+flush-179:021:00:221
579854996044,12cyclictest1213033-21systemd-journal00:04:001
579849996056,3cyclictest651200-21kworker/u8:3+flush-179:023:10:000
579849996054,4cyclictest635799-21kworker/u8:0+flush-179:022:20:190
579849996053,5cyclictest675135-21apt-get00:05:030
579854995953,5cyclictest651200-21kworker/u8:3+flush-179:022:55:211
579849995951,6cyclictest648039-21kworker/u8:0+events_unbound23:15:130
579849995951,5cyclictest680398-21kworker/u8:1+flush-179:000:30:210
579849995850,5cyclictest625479-21kworker/u8:2+flush-179:021:30:150
579854995749,7cyclictest643208-21kworker/u8:2+flush-179:022:30:001
579854995645,8cyclictest619061-21kworker/u8:1+flush-179:021:50:211
579854995547,6cyclictest612706-21latency_hist20:50:011
57985499550,51cyclictest1-21systemd20:15:001
579849995550,4cyclictest643208-21kworker/u8:2+flush-179:022:30:210
579849995549,4cyclictest620663-21latency_hist21:15:010
579849995548,5cyclictest648039-21kworker/u8:0+events_unbound23:10:150
579849995548,5cyclictest625479-21kworker/u8:2+flush-179:022:00:150
579849995546,7cyclictest608163-21kworker/u8:1+flush-179:020:40:160
579849995545,5cyclictest599991-21kworker/u8:0+events_unbound20:15:190
579849995348,4cyclictest606374-21kworker/u8:3+events_unbound21:01:210
579858995249,2cyclictest0-21swapper/200:16:582
579854995242,8cyclictest675635-21apt-get00:05:121
579854995242,8cyclictest1213033-21systemd-journal21:10:001
579854995239,11cyclictest582949-21apt-get19:20:001
579854995141,7cyclictest908065-21snmpd21:55:131
579854995139,9cyclictest1213033-21systemd-journal21:32:371
579849995141,8cyclictest1213033-21systemd-journal20:22:380
579858995043,6cyclictest0-21swapper/219:17:002
579854995011,18cyclictest596861-21latency_hist20:00:011
579849995044,4cyclictest606374-21kworker/u8:3+flush-179:021:25:190
4577091500,13ptp4l441ktimers/319:09:593
579859994947,1cyclictest0-21swapper/322:10:593
579859994846,1cyclictest0-21swapper/322:55:003
579854994840,5cyclictest670536-21apt-get23:50:131
579854994839,7cyclictest1213033-21systemd-journal21:22:371
579854994839,7cyclictest1213033-21systemd-journal21:22:371
579849994843,4cyclictest606374-21kworker/u8:3+flush-179:021:15:390
579858994740,6cyclictest0-21swapper/221:00:592
579854994740,5cyclictest619333-21http21:10:131
579854994737,7cyclictest638475-21kworker/u8:2+flush-179:022:15:141
579854994737,7cyclictest510-21rs:main1
579854994638,6cyclictest0-21swapper/119:40:111
579854994612,32cyclictest0-21swapper/122:10:141
579854994539,4cyclictest644818-21turbostat22:34:551
579854994538,5cyclictest647998-21latency_hist22:40:001
579854994537,6cyclictest589904-21run-parts19:40:001
579859994438,5cyclictest662333-21turbostat23:25:003
579854994440,2cyclictest714-21Xorg21:42:001
579854994435,7cyclictest510-21rs:main1
579859994342,1cyclictest0-21swapper/321:07:593
57985899430,35cyclictest0-21swapper/223:35:592
579854994333,7cyclictest680398-21kworker/u8:1+flush-179:000:30:221
579849994334,4cyclictest608163-21kworker/u8:1+events_unbound20:45:150
579854994232,7cyclictest659130-21latency_hist23:15:011
57985499421,39cyclictest714-21Xorg19:11:581
579859994133,6cyclictest676973-21turbostat00:10:013
57985899410,39cyclictest0-21swapper/223:34:592
57985899410,39cyclictest0-21swapper/223:34:592
579854994116,9cyclictest714-21Xorg21:25:591
579854994111,14cyclictest606567-21cat20:30:011
579854994035,4cyclictest1213033-21systemd-journal00:25:401
579854994035,4cyclictest0-21swapper/123:31:591
579854994035,4cyclictest0-21swapper/123:31:581
579854994035,3cyclictest649620-21sh22:45:001
579854994032,6cyclictest678001-21kworker/u8:0+flush-179:000:15:231
579854994011,15cyclictest621330-21grep21:15:161
57985499400,38cyclictest588300-21munin-run19:35:001
57985999390,38cyclictest0-21swapper/300:34:593
57985999390,37cyclictest651188-21turbostat22:50:003
579854993932,5cyclictest606374-21kworker/u8:3+events_unbound21:00:011
579854993930,5cyclictest0-21swapper/120:37:001
57985499391,35cyclictest637108-21apt-get22:05:121
57985499390,2cyclictest714-21Xorg22:47:591
579858993831,6cyclictest0-21swapper/219:28:592
57985899380,36cyclictest0-21swapper/222:02:592
57985899380,36cyclictest0-21swapper/222:00:002
57985899380,36cyclictest0-21swapper/200:29:552
57985899380,35cyclictest0-21swapper/223:09:562
57985899380,35cyclictest0-21swapper/220:41:592
579854993816,7cyclictest714-21Xorg21:35:591
579849993833,4cyclictest657587-21kworker/u8:2+flush-179:023:20:190
579859993734,2cyclictest0-21swapper/321:44:553
579859993734,2cyclictest0-21swapper/319:42:593
579858993734,2cyclictest0-21swapper/222:52:592
57985899370,35cyclictest0-21swapper/223:14:592
579854993714,9cyclictest657655-21latency_hist23:10:011
579854993713,10cyclictest681786-21munin-run00:24:591
579854993711,13cyclictest579741-21latency_hist19:10:021
579859993634,1cyclictest0-21swapper/323:58:583
579859993634,1cyclictest0-21swapper/321:55:593
579859993634,1cyclictest0-21swapper/321:18:593
57985999360,35cyclictest0-21swapper/322:08:593
57985999360,35cyclictest0-21swapper/321:49:593
57985999360,1cyclictest0-21swapper/320:38:593
579858993633,2cyclictest0-21swapper/220:57:592
579858993633,2cyclictest0-21swapper/219:10:582
57985899360,1cyclictest0-21swapper/219:56:002
57985899360,1cyclictest0-21swapper/219:50:592
57985899360,1cyclictest0-21swapper/200:03:582
579854993630,4cyclictest652847-21latency_hist22:55:011
579854993629,5cyclictest1213033-21systemd-journal20:51:181
579854993624,9cyclictest1213033-21systemd-journal23:50:001
579854993614,7cyclictest594390-21ntp_states19:50:221
579859993533,1cyclictest0-21swapper/323:30:593
579859993533,1cyclictest0-21swapper/323:30:593
579859993533,1cyclictest0-21swapper/319:57:593
579858993528,6cyclictest0-21swapper/220:18:582
579854993513,8cyclictest908065-21snmpd19:49:111
579854993513,10cyclictest662885-21fschecks_count23:25:161
579859993431,2cyclictest0-21swapper/320:24:563
579858993431,2cyclictest0-21swapper/222:32:582
579858993431,2cyclictest0-21swapper/222:18:592
579858993431,2cyclictest0-21swapper/221:20:592
579858993431,2cyclictest0-21swapper/221:20:592
579858993431,2cyclictest0-21swapper/219:32:592
57985899340,28cyclictest0-21swapper/221:10:122
57985899340,21cyclictest0-21swapper/221:25:132
57985899340,1cyclictest0-21swapper/220:52:592
579859993330,2cyclictest0-21swapper/320:56:593
579858993331,1cyclictest0-21swapper/223:25:002
579858993229,2cyclictest0-21swapper/221:09:562
579858993229,2cyclictest0-21swapper/220:34:582
579858993226,5cyclictest0-21swapper/221:45:592
579854993229,2cyclictest0-21swapper/120:17:001
579854993222,6cyclictest714-21Xorg20:23:591
579854993222,5cyclictest714-21Xorg21:47:591
579858993128,2cyclictest0-21swapper/223:53:002
4577091310,7ptp4l441ktimers/322:20:013
579859993028,1cyclictest0-21swapper/323:18:593
57985999300,28cyclictest0-21swapper/322:30:133
579858993027,2cyclictest0-21swapper/223:44:542
579858993027,2cyclictest0-21swapper/222:35:152
579858993027,2cyclictest0-21swapper/221:34:552
579858993027,2cyclictest0-21swapper/219:20:042
579858993026,2cyclictest0-21swapper/222:58:002
579858993021,7cyclictest0-21swapper/220:36:592
57985499300,2cyclictest714-21Xorg23:41:001
4577091300,8ptp4l441ktimers/322:30:013
579859992927,1cyclictest0-21swapper/319:45:143
579859992927,1cyclictest0-21swapper/300:16:593
579859992926,2cyclictest0-21swapper/321:25:133
57985999290,28cyclictest0-21swapper/322:35:153
57985999290,27cyclictest0-21swapper/323:00:133
57985999290,27cyclictest0-21swapper/321:00:143
57985999290,27cyclictest0-21swapper/320:50:133
57985999290,27cyclictest0-21swapper/320:40:143
57985999290,27cyclictest0-21swapper/320:15:113
57985999290,27cyclictest0-21swapper/320:00:123
579858992926,2cyclictest0-21swapper/222:40:122
579858992926,2cyclictest0-21swapper/200:39:552
57985899290,2cyclictest0-21swapper/200:22:592
57985899290,27cyclictest0-21swapper/221:38:002
4577091290,8ptp4l61490irq/134-eno1-TxRx-022:05:003
4577091290,7ptp4l61490irq/134-eno1-TxRx-019:40:003
4577091290,7ptp4l441ktimers/323:49:563
4577091290,7ptp4l441ktimers/323:15:003
4577091290,6ptp4l441ktimers/320:50:003
4577091290,6ptp4l441ktimers/319:55:013
4577091290,6ptp4l441ktimers/319:35:013
579859992825,2cyclictest0-21swapper/323:35:123
579859992825,2cyclictest0-21swapper/323:05:153
579859992825,2cyclictest0-21swapper/322:40:123
579859992825,2cyclictest0-21swapper/320:25:593
57985999280,27cyclictest0-21swapper/321:50:133
57985999280,26cyclictest0-21swapper/319:25:143
579858992826,1cyclictest0-21swapper/222:09:592
579858992825,2cyclictest0-21swapper/223:55:122
579858992825,2cyclictest0-21swapper/219:45:132
579858992825,2cyclictest0-21swapper/219:35:592
579858992825,2cyclictest0-21swapper/200:10:132
579858992822,5cyclictest0-21swapper/221:40:142
57985899280,2cyclictest0-21swapper/200:30:122
57985899280,26cyclictest0-21swapper/221:15:132
57985899280,26cyclictest0-21swapper/220:25:132
4577091280,6ptp4l441ktimers/321:40:003
579859992724,2cyclictest0-21swapper/323:53:593
57985999270,26cyclictest0-21swapper/321:13:593
57985999270,26cyclictest0-21swapper/300:29:583
57985999270,1cyclictest0-21swapper/319:20:023
579858992725,1cyclictest0-21swapper/222:10:592
579858992724,2cyclictest0-21swapper/221:50:132
4577091270,6ptp4l61490irq/134-eno1-TxRx-023:45:013
4577091270,6ptp4l441ktimers/321:35:003
4577091270,5ptp4l61490irq/134-eno1-TxRx-020:10:023
4577091270,5ptp4l441ktimers/321:24:553
4577091270,5ptp4l441ktimers/321:24:553
4577091270,5ptp4l441ktimers/320:14:563
4577091270,5ptp4l441ktimers/300:39:563
4577091270,5ptp4l441ktimers/300:04:553
4577091270,3ptp4l441ktimers/323:00:013
579858992619,6cyclictest0-21swapper/222:22:592
4577091260,5ptp4l61490irq/134-eno1-TxRx-000:25:003
579858992522,2cyclictest0-21swapper/223:45:592
579858992522,2cyclictest0-21swapper/222:48:592
4577091250,4ptp4l61490irq/134-eno1-TxRx-023:29:563
4577091250,4ptp4l61490irq/134-eno1-TxRx-020:34:563
4577091250,4ptp4l61490irq/134-eno1-TxRx-000:14:553
579858992421,2cyclictest0-21swapper/223:26:592
4577091240,3ptp4l61490irq/134-eno1-TxRx-022:24:563
579858992320,2cyclictest0-21swapper/220:47:002
579858992320,2cyclictest0-21swapper/220:02:592
579858992219,2cyclictest0-21swapper/219:42:592
579858992216,1cyclictest0-21swapper/223:00:142
579849992216,4cyclictest579933-21latency_hist19:10:020
579858991917,1cyclictest0-21swapper/220:05:582
579858991916,2cyclictest0-21swapper/222:29:002
579858991815,2cyclictest0-21swapper/200:09:002
4577091180,9ptp4l61490irq/134-eno1-TxRx-019:10:183
579858991310,2cyclictest0-21swapper/220:24:552
57985899107,2cyclictest0-21swapper/223:18:592
5798589985,2cyclictest0-21swapper/220:10:172
5798589930,2cyclictest0-21swapper/219:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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