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2025-12-08 - 13:58
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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 Dec 08, 2025 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
317291999113102,8cyclictest3266235-40logrotate00:00:010
3172923999787,7cyclictest3245315-21kworker/u8:2+flush-179:023:30:261
3172919998977,10cyclictest271-21systemd-journal19:40:000
3172919998374,7cyclictest3203873-21/usr/sbin/munin20:45:250
3172923998276,4cyclictest3249027-21kworker/u8:0+flush-179:023:25:261
3172923998071,7cyclictest3274506-21/usr/sbin/munin00:25:271
3172923997972,5cyclictest3226204-21kworker/u8:3+flush-179:022:00:011
3172919997967,9cyclictest3223235-21/usr/sbin/munin21:45:250
3172919997868,8cyclictest3229602-21/usr/sbin/munin22:05:250
3172919997768,7cyclictest3221648-21/usr/sbin/munin21:40:240
3172919997469,3cyclictest3183986-21kworker/u8:3+flush-179:020:40:190
3172919996959,7cyclictest3195409-21latency_hist20:20:010
3172923996859,6cyclictest3232537-21latency_hist22:15:011
3172919996847,18cyclictest0-21swapper/021:30:150
3172923996655,8cyclictest3271308-21/usr/sbin/munin00:15:251
3172919996655,9cyclictest3266528-21apt-get00:00:150
3172923996459,4cyclictest3206789-21kworker/u8:2+events_unbound21:00:011
3172919996454,8cyclictest3242343-21/usr/sbin/munin22:45:240
317291999641,5cyclictest0-21swapper/023:40:160
3172923996352,8cyclictest3266300-21cupsd00:00:011
317291999620,59cyclictest3208453-21unin-run21:00:000
3172923996152,6cyclictest3251648-21latency_hist23:15:011
3172923996151,8cyclictest3200698-21apt-get20:35:141
3172919996153,6cyclictest3206789-21kworker/u8:2+flush-179:021:20:000
3172919996152,6cyclictest3179177-21latency_hist19:30:000
317292399601,5cyclictest3260141-21apt-get23:40:151
3172923995954,4cyclictest3243727-21kworker/u8:1+flush-179:022:50:261
3172923995847,9cyclictest3268153-21apt-get00:05:121
3172919995854,2cyclictest0-21swapper/000:14:590
3172919995852,4cyclictest3230986-21kworker/u8:2+flush-179:022:15:260
3172923995749,6cyclictest3235768-21kworker/u8:2+flush-179:022:25:001
3172923995649,6cyclictest3178353-21kworker/u8:1+flush-179:019:30:291
3172919995653,2cyclictest0-21swapper/019:15:590
3172923995551,2cyclictest723-21Xorg00:14:591
3172923995447,6cyclictest271-21systemd-journal22:42:351
3172919995445,7cyclictest271-21systemd-journal00:05:450
3172919995444,8cyclictest3250299-21/usr/sbin/munin23:10:230
3172923995349,3cyclictest3159970-21kworker/u8:3+flush-179:019:20:001
3172923995347,5cyclictest3217966-21kworker/u8:0+events_unbound21:45:171
317292399531,51cyclictest0-21swapper/119:49:001
3172919995349,3cyclictest3226204-21kworker/u8:3+flush-179:022:10:130
3172919995343,7cyclictest271-21systemd-journal22:35:010
3172919995343,7cyclictest271-21systemd-journal22:35:000
3172919995328,22cyclictest3180767-21latency_hist19:35:010
3172925995249,2cyclictest0-21swapper/220:25:592
3172925995249,2cyclictest0-21swapper/220:25:582
3172923995243,7cyclictest3235771-21kworker/u8:3+flush-179:023:00:001
3172923995142,7cyclictest271-21systemd-journal00:04:001
3172919995143,6cyclictest3235768-21kworker/u8:2+flush-179:022:40:000
3172919995143,6cyclictest271-21systemd-journal00:20:000
317291999511,47cyclictest1-21systemd22:42:350
3172925995048,1cyclictest0-21swapper/222:19:582
3172923995046,3cyclictest3202095-21kworker/u8:1+flush-179:021:10:261
3172923995044,4cyclictest3217966-21kworker/u8:0+events_unbound21:35:261
3172919995042,6cyclictest3206789-21kworker/u8:2+events_unbound21:40:010
3172919995034,14cyclictest0-21swapper/021:09:590
3172919995032,16cyclictest723-21Xorg20:29:000
3172919995032,16cyclictest723-21Xorg20:29:000
4670791490,13ptp4l441ktimers/319:10:013
3172923994945,3cyclictest3217966-21kworker/u8:0+flush-179:021:50:261
3172919994942,5cyclictest3266310-21kworker/u8:3+events_unbound00:25:280
3172919994940,7cyclictest3211844-21apt-get21:10:130
3172919994940,6cyclictest502-21rs:main0
3172923994839,7cyclictest3256464-21kworker/u8:1+flush-179:023:40:001
3172923994830,15cyclictest3218473-21apt-get21:30:161
3172923994822,5cyclictest3187448-21idleruntime-cro19:55:001
3172919994844,3cyclictest3183942-21kworker/u8:2+flush-179:020:05:260
3172919994843,4cyclictest3245315-21kworker/u8:2+flush-179:023:55:000
3172923994743,3cyclictest3183942-21kworker/u8:2+flush-179:019:45:001
3172919994740,4cyclictest3235771-21kworker/u8:3+flush-179:023:05:000
3172919994724,5cyclictest3187451-21munin-plugin-st19:55:000
3172923994638,6cyclictest3217966-21kworker/u8:0+flush-179:022:10:001
3172923994622,3cyclictest3216388-21awk21:25:001
3172919994642,2cyclictest3183942-21kworker/u8:2+events_unbound20:05:000
3172919994627,17cyclictest3172827-21kworker/u8:0+flush-179:019:10:310
3172923994539,4cyclictest3183942-21kworker/u8:2+flush-179:020:00:001
3172923994534,10cyclictest3235771-21kworker/u8:3+flush-179:022:50:011
3172923994530,13cyclictest723-21Xorg21:09:581
3172923994524,20cyclictest474-21cron19:24:541
3172919994526,3cyclictest3226425-21apt-get21:55:140
3172923994434,8cyclictest3251903-21apt-get23:15:121
3172923994430,13cyclictest0-21swapper/120:29:001
3172923994430,13cyclictest0-21swapper/120:29:001
3172923994425,17cyclictest0-21swapper/120:50:241
3172923994424,19cyclictest3200445-21munin-run20:34:591
3172919994437,5cyclictest3183986-21kworker/u8:3+events_unbound20:15:010
3172919994423,3cyclictest0-21swapper/022:50:200
3172923994337,4cyclictest3245315-21kworker/u8:2+flush-179:023:50:271
3172919994339,2cyclictest3245315-21kworker/u8:2+events_unbound00:35:010
317292599420,40cyclictest0-21swapper/200:36:592
317292599420,1cyclictest0-21swapper/221:39:552
3172923994238,3cyclictest3217966-21kworker/u8:0+flush-179:021:40:351
3172923994231,7cyclictest3277091-21sensors00:30:211
3172919994236,5cyclictest3249027-21kworker/u8:0+flush-179:023:20:220
3172919994236,5cyclictest3249027-21kworker/u8:0+flush-179:023:20:220
3172919994224,3cyclictest3218187-21cut21:30:010
3172928994139,1cyclictest0-21swapper/323:25:593
317292899410,39cyclictest3226175-21turbostat21:59:553
317291999410,40cyclictest0-21swapper/019:59:590
3172923994036,3cyclictest3193849-21systemd-run20:15:011
317292399400,38cyclictest3189067-21turbostat20:04:561
3172919994036,2cyclictest0-21swapper/019:47:590
3172923993934,3cyclictest3247578-21hwlatdetect23:00:181
3172923993933,4cyclictest3202042-21turbostat20:44:551
3172923993932,5cyclictest3202095-21kworker/u8:1+events_unbound21:30:001
3172923993923,2cyclictest723-21Xorg22:00:591
317292399390,37cyclictest723-21Xorg20:48:001
3172919993934,3cyclictest3262675-21mailstats23:45:230
3172928993835,2cyclictest0-21swapper/321:20:593
3172928993831,6cyclictest0-21swapper/323:44:593
317292899380,37cyclictest3176011-21turbostat19:20:003
3172925993835,2cyclictest0-21swapper/223:05:592
3172925993835,2cyclictest0-21swapper/221:27:002
317292599380,35cyclictest0-21swapper/223:20:012
3172923993835,2cyclictest0-21swapper/121:18:591
3172923993820,2cyclictest0-21swapper/123:20:241
3172923993820,2cyclictest0-21swapper/123:20:231
3172919993835,2cyclictest3259923-21systemd-run23:40:010
3172919993835,2cyclictest0-21swapper/020:23:580
317291999381,31cyclictest0-21swapper/021:50:140
3172928993735,1cyclictest0-21swapper/319:59:553
3172928993734,2cyclictest0-21swapper/322:38:593
317292899370,36cyclictest0-21swapper/323:57:593
317292899370,36cyclictest0-21swapper/323:51:593
317292899370,36cyclictest0-21swapper/322:23:003
317292899370,30cyclictest0-21swapper/323:17:593
3172925993734,2cyclictest0-21swapper/221:43:592
3172925993734,2cyclictest0-21swapper/220:46:592
3172925993734,2cyclictest0-21swapper/200:19:562
317292599370,35cyclictest0-21swapper/222:48:592
317292599370,35cyclictest0-21swapper/222:08:002
317292599370,2cyclictest0-21swapper/223:52:592
317292399374,30cyclictest3237579-21apt-get22:30:161
317292399374,30cyclictest3237579-21apt-get22:30:151
3172923993732,3cyclictest0-21swapper/120:22:591
3172923993716,4cyclictest0-21swapper/122:35:141
3172919993732,4cyclictest2126-10pipewire-media-19:25:010
317291999372,30cyclictest3272939-21apt-get00:20:130
202199370,2rtkit-daemon0-21swapper/120:06:561
317292899360,35cyclictest0-21swapper/322:43:593
317292899360,35cyclictest0-21swapper/321:41:003
317292899360,35cyclictest0-21swapper/321:03:593
317292899360,35cyclictest0-21swapper/300:21:593
317292899360,1cyclictest0-21swapper/321:36:583
3172923993631,4cyclictest3275833-21kworker/u8:0+flush-179:000:35:041
3172923993630,5cyclictest3230986-21kworker/u8:2+flush-179:022:15:171
3172923993611,6cyclictest3273210-21expr00:20:141
3172919993633,2cyclictest0-21swapper/023:33:590
3172919993632,3cyclictest3279081-21systemd-run00:40:000
3172919993631,3cyclictest3200445-21munin-run20:35:000
3172928993533,1cyclictest0-21swapper/300:09:553
3172928993529,5cyclictest0-21swapper/323:49:553
317292899350,2cyclictest0-21swapper/319:30:593
317292899350,1cyclictest0-21swapper/319:26:593
3172925993532,2cyclictest0-21swapper/223:35:592
3172925993532,2cyclictest0-21swapper/223:34:552
3172925993531,2cyclictest0-21swapper/220:50:592
317292599350,1cyclictest0-21swapper/223:26:592
317292599350,1cyclictest0-21swapper/222:30:002
3172923993530,3cyclictest1-21systemd19:30:011
3172919993531,3cyclictest3210040-21systemd-run21:05:010
3172919993527,5cyclictest3216372-21latency_hist21:25:010
3172928993432,1cyclictest0-21swapper/323:00:583
3172928993432,1cyclictest0-21swapper/321:14:553
3172928993432,1cyclictest0-21swapper/320:54:593
3172928993432,1cyclictest0-21swapper/300:14:593
3172925993431,2cyclictest0-21swapper/222:32:582
3172925993431,2cyclictest0-21swapper/222:32:582
3172925993431,2cyclictest0-21swapper/221:04:542
3172925993431,2cyclictest0-21swapper/220:40:582
3172925993431,2cyclictest0-21swapper/200:27:002
3172919993430,3cyclictest3235776-21systemd22:25:010
3172919993429,3cyclictest3249027-21kworker/u8:0-ext4-rsv-conversion23:30:000
3172928993331,1cyclictest0-21swapper/322:25:593
3172928993331,1cyclictest0-21swapper/300:15:593
3172925993330,2cyclictest0-21swapper/222:50:592
3172925993330,2cyclictest0-21swapper/220:17:002
3172919993328,4cyclictest3201878-21unixbench-2d20:35:260
3172928993229,2cyclictest0-21swapper/321:54:593
3172928993226,4cyclictest3224590-21turbostat21:49:593
3172925993229,2cyclictest0-21swapper/223:12:592
3172925993229,2cyclictest0-21swapper/221:10:012
317292599320,30cyclictest0-21swapper/222:59:002
3172923993227,4cyclictest3249027-21kworker/u8:0+flush-179:023:05:281
3172923993227,3cyclictest3206789-21kworker/u8:2+events_unbound21:05:011
3172919993229,2cyclictest723-21Xorg23:06:590
202199320,5rtkit-daemon2020-21rtkit-daemon23:00:010
3172928993129,1cyclictest0-21swapper/323:23:593
3172928993129,1cyclictest0-21swapper/323:23:593
3172928993129,1cyclictest0-21swapper/320:08:583
3172928993128,2cyclictest0-21swapper/322:17:583
3172928993125,5cyclictest0-21swapper/321:30:153
3172925993129,1cyclictest0-21swapper/222:05:002
3172925993129,1cyclictest0-21swapper/219:24:592
3172923993127,3cyclictest3261843-21tr23:45:141
3172923993127,3cyclictest3195753-21apt-config20:20:001
3172923993125,4cyclictest3180774-21turbostat19:39:561
3172919993126,3cyclictest0-21swapper/023:20:010
4670791300,7ptp4l61690irq/136-eno1-TxRx-019:45:003
317292899300,28cyclictest0-21swapper/320:25:153
317292899300,28cyclictest0-21swapper/320:25:143
317292899300,28cyclictest0-21swapper/319:20:153
317292899300,27cyclictest0-21swapper/323:10:133
317292899300,24cyclictest0-21swapper/320:31:003
3172925993027,2cyclictest0-21swapper/223:55:592
317292599300,28cyclictest0-21swapper/220:35:162
3172923993027,2cyclictest3172827-21kworker/u8:0+flush-179:019:10:161
3172919993028,1cyclictest0-21swapper/020:54:560
4670791290,7ptp4l61690irq/136-eno1-TxRx-019:40:013
4670791290,6ptp4l61690irq/136-eno1-TxRx-020:45:003
3172928992926,2cyclictest0-21swapper/319:48:593
317292899290,27cyclictest0-21swapper/320:20:023
317292899290,1cyclictest0-21swapper/320:48:593
3172925992926,2cyclictest0-21swapper/222:10:132
3172925992926,2cyclictest0-21swapper/219:55:152
3172925992926,2cyclictest0-21swapper/219:50:022
3172925992926,2cyclictest0-21swapper/200:22:592
317292599290,1cyclictest0-21swapper/221:50:582
3172923992924,4cyclictest3237189-21unixbench-2d22:25:261
4670791280,7ptp4l61690irq/136-eno1-TxRx-023:40:013
4670791280,7ptp4l61690irq/136-eno1-TxRx-000:40:003
4670791280,6ptp4l441ktimers/323:35:003
4670791280,6ptp4l441ktimers/321:10:013
4670791280,6ptp4l441ktimers/320:40:003
3172928992825,2cyclictest0-21swapper/300:25:163
317292899280,26cyclictest0-21swapper/320:00:143
317292899280,26cyclictest0-21swapper/319:50:023
3172925992825,2cyclictest0-21swapper/223:00:142
3172925992825,2cyclictest0-21swapper/219:25:592
317292599280,2cyclictest0-21swapper/223:20:142
317292599280,2cyclictest0-21swapper/223:20:142
317292599280,26cyclictest0-21swapper/200:06:582
3172919992823,4cyclictest3235768-21kworker/u8:2+flush-179:022:25:170
4670791270,6ptp4l61690irq/136-eno1-TxRx-022:50:003
4670791270,6ptp4l61690irq/136-eno1-TxRx-020:59:553
4670791270,6ptp4l61690irq/136-eno1-TxRx-019:15:003
4670791270,6ptp4l441ktimers/323:00:013
4670791270,6ptp4l441ktimers/322:55:023
4670791270,5ptp4l441ktimers/322:05:013
4670791270,4ptp4l441ktimers/322:09:593
3172928992725,1cyclictest0-21swapper/320:18:003
3172928992725,1cyclictest0-21swapper/300:01:593
3172928992724,2cyclictest0-21swapper/320:12:593
317292899270,26cyclictest0-21swapper/322:30:153
317292899270,26cyclictest0-21swapper/322:30:153
317292899270,1cyclictest0-21swapper/321:17:583
3172925992725,1cyclictest0-21swapper/221:30:022
3172925992724,2cyclictest0-21swapper/220:01:002
317292599270,25cyclictest0-21swapper/219:16:472
317291999270,26cyclictest0-21swapper/022:01:000
4670791260,6ptp4l61690irq/136-eno1-TxRx-022:15:003
4670791260,5ptp4l441ktimers/323:09:553
4670791260,5ptp4l441ktimers/300:34:553
3172925992624,1cyclictest0-21swapper/219:40:592
3172925992623,2cyclictest0-21swapper/222:43:592
3172925992623,2cyclictest0-21swapper/221:12:002
3172925992623,2cyclictest0-21swapper/220:33:002
3172925992623,2cyclictest0-21swapper/200:02:592
317292599260,24cyclictest0-21swapper/219:10:242
3172928992523,1cyclictest0-21swapper/321:30:003
3172925992523,1cyclictest0-21swapper/219:35:002
317292599250,2cyclictest0-21swapper/222:22:592
317292599250,2cyclictest0-21swapper/220:24:592
317292599250,24cyclictest0-21swapper/221:17:002
3172925992421,2cyclictest0-21swapper/219:47:002
3172925992220,1cyclictest0-21swapper/221:20:582
3172925992219,2cyclictest0-21swapper/222:38:592
3172923992215,5cyclictest3172982-21sed19:10:021
3172925992017,2cyclictest0-21swapper/220:08:592
3172919992016,3cyclictest0-21swapper/019:10:020
3172925991917,1cyclictest0-21swapper/219:35:152
3172925991916,2cyclictest0-21swapper/200:13:592
3172925991816,1cyclictest0-21swapper/223:44:592
3172925991714,2cyclictest0-21swapper/220:10:162
3172925991614,1cyclictest0-21swapper/200:35:002
317292599107,2cyclictest0-21swapper/221:58:422
31729259997,1cyclictest0-21swapper/220:55:342
31729259985,2cyclictest0-21swapper/223:48:542
31729259980,7cyclictest0-21swapper/221:46:152
31729259930,2cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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