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2025-12-24 - 04:38
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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 Dec 24, 2025 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3146197999684,9cyclictest3245819-21latency_hist00:20:011
3146193999687,6cyclictest3226137-21latency_hist23:20:010
3146197999485,6cyclictest3227776-21kworker/u8:0+flush-179:023:30:241
3146193999384,6cyclictest3216582-21latency_hist22:50:000
3146197999284,6cyclictest3155576-21kworker/u8:3+flush-179:020:19:591
3146193999081,7cyclictest3247654-21latency_hist00:25:010
3146193999081,7cyclictest3205439-21latency_hist22:15:010
3146197998878,7cyclictest3216617-21kworker/u8:2+flush-179:023:05:221
3146197998575,7cyclictest3229309-21latency_hist23:30:001
3146197998575,7cyclictest3229309-21latency_hist23:30:001
3146197998478,4cyclictest3216562-21kworker/u8:1+events_unbound22:50:241
3146197998477,5cyclictest3161941-21kworker/u8:1+flush-179:020:00:011
3146197998378,4cyclictest3194918-21kworker/u8:1+flush-179:022:15:251
3146197998274,5cyclictest3146020-21kworker/u8:2+events_unbound19:15:251
3146197998272,8cyclictest3230927-21kworker/u8:3+flush-179:023:45:001
3146193998268,10cyclictest3250833-21latency_hist00:35:010
3146197998074,4cyclictest3197534-21kworker/u8:2+flush-179:022:00:191
3146197998072,5cyclictest3200687-21kworker/u8:3+flush-179:022:05:261
3146197998066,4cyclictest3249272-21kworker/u8:1+events_unbound00:35:021
3146197998066,4cyclictest3249272-21kworker/u8:1+events_unbound00:35:021
3146197997874,3cyclictest3213445-21kworker/u8:0+flush-179:022:45:001
3146197997871,6cyclictest3165186-21kworker/u8:2+flush-179:020:25:011
3146197997770,5cyclictest3200687-21kworker/u8:3+flush-179:022:45:251
3146197997769,5cyclictest3155576-21kworker/u8:3+events_unbound19:50:201
3146197997768,7cyclictest3249272-21kworker/u8:1+flush-179:000:30:191
3146197997767,8cyclictest3150832-21kworker/u8:0+events_unbound19:35:011
3146197997667,7cyclictest3237552-21kworker/u8:2+flush-179:000:20:201
3146197997568,5cyclictest3177915-21kworker/u8:1+flush-179:021:20:201
3146193997568,5cyclictest3242615-21latency_hist00:10:010
3146193997563,9cyclictest3158822-21kworker/u8:0+flush-179:019:55:260
3146197997462,9cyclictest3165186-21kworker/u8:2+flush-179:020:40:241
3146197997366,5cyclictest3242650-21kworker/u8:0+flush-179:000:10:211
3146197997264,6cyclictest266-21systemd-journal22:55:191
3146197997065,4cyclictest3192494-21kworker/u8:3+flush-179:021:40:251
3146197997060,7cyclictest3146020-21kworker/u8:2+flush-179:019:45:001
3146197996963,4cyclictest3155576-21kworker/u8:3+events_unbound19:45:301
3146197996863,4cyclictest3194918-21kworker/u8:1+flush-179:022:35:151
3146193996861,5cyclictest3239120-40mandb00:00:000
3146197996757,7cyclictest3232491-21latency_hist23:40:021
3146197996558,4cyclictest3152461-21kworker/u8:1+events_unbound19:40:011
3146197996558,4cyclictest3152461-21kworker/u8:1+events_unbound19:40:011
3146197996554,4cyclictest3146020-21kworker/u8:2+events_unbound19:20:141
3146193996559,5cyclictest3205693-21apt-get22:15:130
3146193996558,5cyclictest3218423-21apt-get22:55:110
3146197996458,4cyclictest3165186-21kworker/u8:2+events_unbound20:55:001
3146197996458,4cyclictest3155576-21kworker/u8:3+flush-179:020:25:211
3146197996457,6cyclictest3189945-21kworker/u8:0+events_unbound21:35:211
3146197996456,6cyclictest3200661-21latency_hist22:00:011
3146193996448,6cyclictest3174712-21latency_hist20:40:000
3146197996256,4cyclictest3230927-21kworker/u8:3+flush-179:023:50:261
3146197996154,4cyclictest3199075-21latency_hist21:55:011
3146197996153,7cyclictest3230927-21kworker/u8:3+flush-179:000:05:291
3146193996154,5cyclictest3146009-21kworker/u8:1+flush-179:019:10:260
3146193996150,8cyclictest3150840-21latency_hist19:25:010
3146193996149,9cyclictest3192469-21apt-get21:35:000
3146197996056,3cyclictest3150832-21kworker/u8:0+flush-179:019:25:261
3146193996052,6cyclictest3169931-21latency_hist20:25:010
3146202995957,1cyclictest0-21swapper/320:25:003
3146197995954,4cyclictest3216562-21kworker/u8:1+flush-179:023:45:191
3146197995850,6cyclictest3155576-21kworker/u8:3+flush-179:020:40:001
3146197995750,5cyclictest3216562-21kworker/u8:1+flush-179:023:15:151
3146197995746,8cyclictest3184261-21apt-get21:09:591
3146197995652,3cyclictest3230927-21kworker/u8:3+flush-179:000:00:051
3146197995552,2cyclictest3155576-21kworker/u8:3+flush-179:020:05:241
3146197995551,3cyclictest3177915-21kworker/u8:1+events_unbound21:15:231
3146197995550,4cyclictest3237552-21kworker/u8:2+flush-179:000:25:251
3146197995550,4cyclictest3177915-21kworker/u8:1+events_unbound21:00:201
3146197995550,4cyclictest3165186-21kworker/u8:2+events_unbound21:30:161
3146197995546,7cyclictest3216562-21kworker/u8:1+flush-179:023:10:231
3146197995543,4cyclictest3155576-21kworker/u8:3+events_unbound20:10:201
3146197995450,3cyclictest3216562-21kworker/u8:1+flush-179:023:20:251
3146197995447,5cyclictest3165186-21kworker/u8:2+events_unbound20:55:131
3146197995447,5cyclictest3165186-21kworker/u8:2+events_unbound20:55:131
3146197995444,8cyclictest3194918-21kworker/u8:1+flush-179:022:30:251
3146193995446,6cyclictest3222944-21latency_hist23:10:000
3146197995348,4cyclictest3165186-21kworker/u8:2+events_unbound20:30:251
3146197995348,4cyclictest3165186-21kworker/u8:2+events_unbound20:30:241
3146193995345,5cyclictest3177915-21kworker/u8:1+flush-179:021:25:010
3146202995250,1cyclictest0-21swapper/300:21:593
3146197995246,5cyclictest3177915-21kworker/u8:1+events_unbound21:10:021
3146193995246,4cyclictest3231153-21apt-get23:35:130
3146202995148,2cyclictest0-21swapper/323:34:593
3146197995044,4cyclictest3146031-21latency_hist19:10:021
3146193995043,5cyclictest3208870-21kworker/u8:0+flush-179:022:25:240
3146193995039,9cyclictest3179721-21apt-get20:55:100
3146193995039,9cyclictest3179721-21apt-get20:55:090
4577091490,13ptp4l441ktimers/319:10:013
3146199994946,2cyclictest0-21swapper/219:39:592
3146199994946,2cyclictest0-21swapper/219:39:592
3146197994945,3cyclictest3189945-21kworker/u8:0+flush-179:021:45:241
3146197994939,4cyclictest3194918-21kworker/u8:1+events_unbound22:20:131
3146193994942,5cyclictest3158786-21latency_hist19:50:000
3146193994843,4cyclictest3237555-21systemd-run23:55:000
3146197994642,3cyclictest3146009-21kworker/u8:1+flush-179:019:10:251
3146193994641,4cyclictest3194918-21kworker/u8:1+flush-179:022:35:270
3146193994535,5cyclictest0-21swapper/023:15:000
314619999440,1cyclictest0-21swapper/220:17:592
3146197994440,3cyclictest3155576-21kworker/u8:3+events_unbound20:45:211
3146197994439,4cyclictest3213445-21kworker/u8:0+events_unbound23:00:181
3146193994440,2cyclictest0-21swapper/023:45:590
314619999430,40cyclictest0-21swapper/200:04:552
3146193994338,3cyclictest484-21dbus-daemon00:04:120
3146193994332,8cyclictest3245812-21apt-get00:20:010
3146197994238,3cyclictest29-21ksoftirqd/120:05:011
3146197994237,4cyclictest3189945-21kworker/u8:0+events_unbound21:25:231
3146193994235,5cyclictest3165186-21kworker/u8:2+flush-179:020:45:260
3146193994231,9cyclictest266-21systemd-journal22:25:000
314619399421,5cyclictest3158804-21turbostat19:54:550
314619399420,40cyclictest3219783-21turbostat23:04:550
314619399420,40cyclictest3176301-21munin-run20:45:000
314619999410,39cyclictest0-21swapper/220:58:592
314619999410,39cyclictest0-21swapper/220:58:592
314619799410,4cyclictest3237522-21turbostat23:59:541
3146193994136,3cyclictest714-21Xorg23:40:590
3146193994133,6cyclictest0-21swapper/022:30:150
314619399410,40cyclictest714-21Xorg22:04:590
314620299400,39cyclictest0-21swapper/323:38:593
3146193994030,7cyclictest266-21systemd-journal20:20:010
3146193994028,10cyclictest3213669-21apt-get22:40:120
314619399401,2cyclictest714-21Xorg21:10:590
3146202993937,1cyclictest0-21swapper/320:57:583
3146202993937,1cyclictest0-21swapper/320:57:583
3146202993937,1cyclictest0-21swapper/320:47:593
3146199993929,8cyclictest0-21swapper/220:05:012
314619999390,36cyclictest0-21swapper/221:50:002
3146193993930,5cyclictest0-21swapper/000:35:590
3146193993930,5cyclictest0-21swapper/000:35:590
3146193993929,6cyclictest3199329-21apt-get21:55:140
314619399390,2cyclictest714-21Xorg00:26:590
314619999380,36cyclictest0-21swapper/220:30:592
314619999380,36cyclictest0-21swapper/220:30:582
314619999380,35cyclictest0-21swapper/219:50:592
314619399381,35cyclictest3154268-21apt-get19:35:130
314619399381,35cyclictest3154268-21apt-get19:35:130
3146202993734,2cyclictest0-21swapper/300:38:593
3146202993734,2cyclictest0-21swapper/300:38:593
314620299370,36cyclictest0-21swapper/322:39:563
314619999370,2cyclictest0-21swapper/222:50:592
314619999370,29cyclictest0-21swapper/221:09:552
3146193993733,2cyclictest714-21Xorg23:29:590
3146193993733,2cyclictest714-21Xorg23:29:590
3146193993732,3cyclictest3218198-21sh22:55:010
3146193993730,5cyclictest3230927-21kworker/u8:3+flush-179:023:35:000
3146193993728,5cyclictest0-21swapper/019:34:590
3146193993727,7cyclictest3146020-21kworker/u8:2+flush-179:019:15:230
3146202993634,1cyclictest0-21swapper/323:14:003
3146202993634,1cyclictest0-21swapper/321:22:003
3146202993634,1cyclictest0-21swapper/319:24:593
3146202993634,1cyclictest0-21swapper/300:10:593
314620299360,35cyclictest0-21swapper/323:08:593
314620299360,35cyclictest0-21swapper/322:57:583
314620299360,35cyclictest0-21swapper/322:14:583
314620299360,35cyclictest0-21swapper/321:56:593
314620299360,1cyclictest0-21swapper/320:05:583
3146199993633,2cyclictest0-21swapper/223:45:002
3146199993633,2cyclictest0-21swapper/200:18:592
314619999360,1cyclictest0-21swapper/222:39:592
314619999360,1cyclictest0-21swapper/221:59:552
3146197993633,2cyclictest0-21swapper/122:26:591
3146193993633,2cyclictest714-21Xorg20:01:590
3146193993632,3cyclictest714-21Xorg20:28:590
3146193993631,3cyclictest3194349-21systemd-run21:40:010
314619399362,30cyclictest3181326-21apt-get21:00:180
3146202993533,1cyclictest0-21swapper/322:25:593
314620299350,1cyclictest0-21swapper/320:15:593
3146199993532,2cyclictest0-21swapper/223:03:592
3146199993531,2cyclictest0-21swapper/220:35:592
3146199993531,2cyclictest0-21swapper/220:29:592
314619999350,1cyclictest0-21swapper/219:34:552
314619399353,30cyclictest0-21swapper/000:10:140
3146193993532,2cyclictest0-21swapper/020:31:590
3146193993532,2cyclictest0-21swapper/020:31:590
3146193993531,3cyclictest714-21Xorg22:07:590
3146193993531,3cyclictest714-21Xorg21:44:590
3146202993432,1cyclictest0-21swapper/322:40:583
3146202993432,1cyclictest0-21swapper/321:43:593
3146202993432,1cyclictest0-21swapper/320:53:003
3146202993432,1cyclictest0-21swapper/319:54:553
3146202993431,2cyclictest0-21swapper/322:06:593
3146202993429,4cyclictest3176300-21turbostat20:44:593
3146199993426,6cyclictest0-21swapper/222:30:592
314619999340,2cyclictest0-21swapper/219:45:192
3146193993425,5cyclictest0-21swapper/021:50:140
314619399340,2cyclictest0-21swapper/019:43:000
3146202993331,1cyclictest0-21swapper/319:59:593
3146202993331,1cyclictest0-21swapper/300:32:593
3146199993330,2cyclictest0-21swapper/200:08:592
3146199993329,2cyclictest0-21swapper/219:20:592
3146193993326,5cyclictest0-21swapper/021:10:010
3146202993230,1cyclictest0-21swapper/323:48:593
3146202993230,1cyclictest0-21swapper/322:55:003
3146202993230,1cyclictest0-21swapper/322:05:003
3146199993229,2cyclictest0-21swapper/222:29:582
3146199993229,2cyclictest0-21swapper/219:58:592
3146199993225,5cyclictest0-21swapper/219:15:142
3146202993129,1cyclictest0-21swapper/321:29:543
3146202993129,1cyclictest0-21swapper/321:10:593
3146199993128,2cyclictest0-21swapper/222:41:592
3146199993128,2cyclictest0-21swapper/220:51:592
3146199993125,5cyclictest0-21swapper/200:10:142
3146193993128,2cyclictest714-21Xorg21:49:590
314619399311,2cyclictest3178135-21apt-get20:50:140
314619399311,22cyclictest0-21swapper/021:15:130
3146202993028,1cyclictest0-21swapper/322:49:543
3146202993028,1cyclictest0-21swapper/300:26:593
3146202993027,1cyclictest0-21swapper/323:04:553
3146199993027,2cyclictest0-21swapper/221:27:592
3146199993027,2cyclictest0-21swapper/220:22:592
3146199993023,6cyclictest0-21swapper/222:03:002
314619999300,2cyclictest0-21swapper/200:00:012
314619999300,28cyclictest0-21swapper/219:43:002
314619799300,2cyclictest271rcuc/122:12:591
3146193993026,3cyclictest3190902-21systemd-run21:30:000
3146193993025,3cyclictest714-21Xorg20:08:580
3146202992926,2cyclictest0-21swapper/323:15:133
314620299290,28cyclictest0-21swapper/321:15:133
314620299290,27cyclictest0-21swapper/322:15:153
314620299290,27cyclictest0-21swapper/321:35:143
3146199992926,2cyclictest0-21swapper/223:28:592
3146199992926,2cyclictest0-21swapper/223:28:592
3146199992926,2cyclictest0-21swapper/221:41:592
3146199992926,2cyclictest0-21swapper/221:35:012
3146199992926,2cyclictest0-21swapper/221:00:172
3146199992926,2cyclictest0-21swapper/220:11:592
3146202992826,1cyclictest0-21swapper/321:00:183
3146202992826,1cyclictest0-21swapper/300:05:023
3146202992825,2cyclictest0-21swapper/321:50:143
3146202992825,2cyclictest0-21swapper/320:01:593
3146202992825,2cyclictest0-21swapper/319:35:133
3146202992825,2cyclictest0-21swapper/319:35:133
3146199992825,2cyclictest0-21swapper/223:35:142
3146199992825,2cyclictest0-21swapper/223:17:002
3146199992825,2cyclictest0-21swapper/219:25:152
314619999280,2cyclictest0-21swapper/200:35:032
314619999280,2cyclictest0-21swapper/200:35:032
314619999280,26cyclictest0-21swapper/223:23:592
314619999280,26cyclictest0-21swapper/223:12:582
314619999280,1cyclictest0-21swapper/221:15:122
3146193992821,5cyclictest3150832-21kworker/u8:0+events_unbound19:25:200
4577091270,7ptp4l441ktimers/300:20:013
4577091270,6ptp4l441ktimers/321:35:003
4577091270,6ptp4l441ktimers/320:15:003
4577091270,6ptp4l441ktimers/319:35:013
3146199992725,1cyclictest0-21swapper/221:25:002
3146199992724,2cyclictest0-21swapper/221:54:542
3146199992724,2cyclictest0-21swapper/220:07:592
314619999270,24cyclictest0-21swapper/223:47:592
4577091260,6ptp4l441ktimers/319:45:003
4577091260,6ptp4l441ktimers/300:05:013
4577091260,5ptp4l61490irq/134-eno1-TxRx-020:34:563
4577091260,5ptp4l61490irq/134-eno1-TxRx-020:34:563
3146202992624,1cyclictest0-21swapper/323:55:593
3146202992624,1cyclictest0-21swapper/323:30:003
3146202992624,1cyclictest0-21swapper/323:29:593
3146202992624,1cyclictest0-21swapper/322:23:593
3146202992624,1cyclictest0-21swapper/319:45:193
3146202992623,1cyclictest0-21swapper/319:10:133
314620299260,24cyclictest0-21swapper/319:25:083
3146199992623,2cyclictest0-21swapper/222:12:582
3146193992620,5cyclictest714-21Xorg20:12:000
3146193992616,6cyclictest0-21swapper/023:20:590
4577091250,5ptp4l61490irq/134-eno1-TxRx-020:29:553
3146202992522,2cyclictest0-21swapper/320:39:003
314620299250,24cyclictest0-21swapper/321:09:003
314620299250,24cyclictest0-21swapper/319:18:413
3146199992523,1cyclictest0-21swapper/222:19:592
3146199992521,2cyclictest0-21swapper/222:58:592
3146199992519,5cyclictest0-21swapper/219:10:142
3146199992514,9cyclictest0-21swapper/223:35:012
4577091240,3ptp4l61490irq/134-eno1-TxRx-023:55:003
4577091240,3ptp4l441ktimers/321:50:003
3146202992422,1cyclictest0-21swapper/323:40:583
3146202992422,1cyclictest0-21swapper/322:30:133
3146199992421,2cyclictest0-21swapper/223:07:592
3146199992421,2cyclictest0-21swapper/200:25:002
4577091230,3ptp4l61490irq/134-eno1-TxRx-023:25:013
3146199992320,2cyclictest0-21swapper/223:50:132
3146199992220,1cyclictest0-21swapper/200:35:002
3146199992118,1cyclictest0-21swapper/221:35:002
231999210,12rtkit-daemon495-21gpm19:07:500
3146199991911,2cyclictest0-21swapper/222:09:562
3146199991512,2cyclictest0-21swapper/200:28:592
3146199991210,1cyclictest0-21swapper/220:48:582
314619999118,2cyclictest0-21swapper/222:46:592
314619999109,1cyclictest0-21swapper/220:44:592
314619999107,2cyclictest0-21swapper/221:12:002
31461999996,2cyclictest0-21swapper/222:22:002
31461999920,1cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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