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2026-06-30 - 16:08
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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 Tue Jun 30, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
142690899127113,10cyclictest1495518-21kworker/u8:1+flush-179:010:45:010
142690999122111,9cyclictest1213033-21systemd-journal08:10:011
142690899120109,8cyclictest1436679-21/usr/sbin/munin07:40:240
142690899118109,6cyclictest1459266-21kworker/u8:3+flush-179:009:00:020
142690899117100,6cyclictest1459266-21kworker/u8:3+flush-179:009:20:010
142690899115108,4cyclictest1482824-21kworker/u8:0+events_unbound10:05:010
142690999111101,7cyclictest1438028-21latency_hist07:45:011
142690899111106,4cyclictest1497923-21kworker/u8:0+flush-179:011:35:000
142690899110102,6cyclictest1483410-21kworker/u8:2+events_unbound10:25:000
14269089910899,6cyclictest1423818-21kworker/u8:3+flush-179:007:34:590
142690999107100,5cyclictest1509090-21latency_hist11:25:011
14269089910796,7cyclictest1472458-21kworker/u8:3+flush-179:009:35:200
14269089910598,5cyclictest1483410-21kworker/u8:2+events_unbound10:10:010
14269089910591,8cyclictest1483410-21kworker/u8:2+flush-179:010:15:210
14269089910587,7cyclictest1433148-21kworker/u8:2+events_unbound07:45:140
14269089910193,5cyclictest1486535-21latency_hist10:15:000
14269089910192,6cyclictest1451255-21kworker/u8:2+flush-179:008:45:010
1426908999991,5cyclictest1497923-21kworker/u8:0+events_unbound11:00:250
1426908999990,6cyclictest1513919-21kworker/u8:3+flush-179:011:50:210
1426908999892,5cyclictest1439596-21kworker/u8:0+flush-179:008:20:000
1426909999788,6cyclictest1455792-21latency_hist08:40:021
1426908999684,8cyclictest1451255-21kworker/u8:2+events_unbound09:35:000
1426909999483,9cyclictest1213033-21systemd-journal11:15:001
1426908999485,6cyclictest1504307-21latency_hist11:10:010
1426908999387,3cyclictest1439596-21kworker/u8:0+flush-179:008:10:220
1426908999383,7cyclictest1526590-21latency_hist12:20:010
1426908999383,7cyclictest1495518-21kworker/u8:1+flush-179:011:00:000
1426908999382,8cyclictest1499510-21kworker/u8:2+events_unbound10:55:010
1426909999284,5cyclictest1477001-21latency_hist09:45:011
1426908999285,5cyclictest1483410-21kworker/u8:2+events_unbound10:30:260
1426908999283,7cyclictest1423818-21kworker/u8:3+flush-179:007:20:260
1426908999276,6cyclictest1524969-21kworker/u8:0+events_unbound12:25:240
1426909999182,6cyclictest1478585-21latency_hist09:50:001
1426908998981,5cyclictest1528170-21kworker/u8:2+flush-179:012:35:000
1426908998779,5cyclictest1451255-21kworker/u8:2+events_unbound08:30:230
1426909998680,5cyclictest1497923-21kworker/u8:0+flush-179:011:05:251
1426909998675,9cyclictest1488404-21apt-get10:20:111
1426909998675,8cyclictest1441741-21diskstats07:55:141
1426908998679,5cyclictest1463445-21kworker/u8:0+events_unbound09:00:270
1426908998678,6cyclictest1436348-21gzip07:36:000
1426908998578,5cyclictest1504342-21kworker/u8:2+events_unbound11:20:010
1426908998478,4cyclictest1451255-21kworker/u8:2+flush-179:008:50:210
1426908998477,5cyclictest1513832-21kworker/u8:2+flush-179:012:05:200
1426908998477,5cyclictest1513832-21kworker/u8:2+flush-179:012:05:200
1426908998477,5cyclictest1513832-21kworker/u8:2+flush-179:011:50:000
1426908998477,4cyclictest1508544-21kworker/u8:1+flush-179:011:25:220
1426908998475,6cyclictest1475451-21kworker/u8:1+events_unbound09:40:160
1426908998474,7cyclictest1512243-21kworker/u8:1+flush-179:011:40:160
1426908998474,7cyclictest1451255-21kworker/u8:2+flush-179:009:10:260
1426909998374,6cyclictest1439612-21latency_hist07:50:011
1426909998371,9cyclictest1448079-21apt-get08:15:121
1426908998375,6cyclictest1446218-21kworker/u8:1+flush-179:008:20:250
1426909998277,4cyclictest1497923-21kworker/u8:0+flush-179:010:56:011
1426908998175,4cyclictest1488385-21kworker/u8:3+events_unbound10:25:220
1426908998174,5cyclictest1451255-21kworker/u8:2+flush-179:009:25:260
1426908998173,6cyclictest1482824-21kworker/u8:0+flush-179:010:35:250
1426908998172,6cyclictest1513832-21kworker/u8:2+flush-179:012:00:210
1426908998171,6cyclictest1441182-21kworker/u8:1+flush-179:007:55:200
1426908998068,4cyclictest1451255-21kworker/u8:2+events_unbound08:35:240
1426908997974,3cyclictest1472458-21kworker/u8:3+flush-179:009:55:220
1426909997869,7cyclictest1459266-21kworker/u8:3+events_unbound09:10:001
1426908997872,4cyclictest1439596-21kworker/u8:0+flush-179:008:05:250
1426909997769,6cyclictest1434745-21latency_hist07:35:011
1426908997769,5cyclictest1423818-21kworker/u8:3+events_unbound07:10:160
1426909997667,7cyclictest1441199-21latency_hist07:55:011
1426908997568,4cyclictest1520270-21kworker/u8:1+flush-179:012:10:210
1426909997468,5cyclictest1451255-21kworker/u8:2+events_unbound09:30:001
1426909997466,6cyclictest1423818-21kworker/u8:3+flush-179:007:20:011
1426909997465,7cyclictest1433148-21kworker/u8:2+flush-179:007:35:251
1426908997470,3cyclictest1446218-21kworker/u8:1+flush-179:008:25:250
1426908997464,8cyclictest1431828-21apt-get07:25:120
1426908997368,4cyclictest1439596-21kworker/u8:0+flush-179:007:50:250
1426908997367,4cyclictest1504342-21kworker/u8:2+flush-179:011:10:220
1426908997367,4cyclictest1463445-21kworker/u8:0+events_unbound09:05:180
1426909997261,8cyclictest1497923-21kworker/u8:0+flush-179:011:35:251
1426908997260,4cyclictest1497923-21kworker/u8:0+events_unbound11:35:180
1426908997165,4cyclictest1472458-21kworker/u8:3+flush-179:009:45:230
1426908997164,4cyclictest1524969-21kworker/u8:0+events_unbound12:30:220
1426916997063,5cyclictest1464011-21turbostat09:05:003
1426909997062,5cyclictest1523403-21latency_hist12:10:021
1426909997062,5cyclictest1523403-21latency_hist12:10:021
1426909997056,10cyclictest1520270-21kworker/u8:1+flush-179:012:19:591
1426908997064,5cyclictest1497923-21kworker/u8:0+events_unbound11:20:250
1426909996961,6cyclictest1495028-21apt-get10:40:111
1426908996962,5cyclictest1495518-21kworker/u8:1+flush-179:010:45:190
1426908996958,7cyclictest1475451-21kworker/u8:1+events_unbound09:50:220
1426909996854,11cyclictest1213033-21systemd-journal08:33:001
1426908996660,4cyclictest1524969-21kworker/u8:0+flush-179:012:20:240
1426909996552,10cyclictest1457396-21apt-get08:45:001
1426908996561,3cyclictest1451255-21kworker/u8:2+events_unbound08:45:250
1426909996448,12cyclictest1439596-21kworker/u8:0+flush-179:008:00:211
1426908996459,3cyclictest1459266-21kworker/u8:3+events_unbound09:20:230
1426908996459,3cyclictest1459266-21kworker/u8:3+events_unbound09:20:230
1426909996353,8cyclictest1423818-21kworker/u8:3+flush-179:007:20:231
1426909996352,8cyclictest1451019-21latency_hist08:25:011
1426908996358,4cyclictest1423818-21kworker/u8:3+flush-179:007:15:220
1426909996149,9cyclictest1488385-21kworker/u8:3+events_unbound10:30:021
1426909996048,9cyclictest1531376-21apt-get12:34:591
1426916995957,1cyclictest0-21swapper/312:00:593
1426909995949,7cyclictest1520270-21kworker/u8:1+flush-179:012:10:221
1426909995948,8cyclictest1509124-21kworker/u8:3+flush-179:011:25:171
1426909995941,14cyclictest1213033-21systemd-journal12:25:001
1426909995852,4cyclictest1528441-21apt-get12:25:121
1426909995851,4cyclictest1494757-21latency_hist10:40:011
1426909995849,6cyclictest1470373-21latency_hist09:25:011
1426909995849,6cyclictest1470373-21latency_hist09:25:001
1426908995849,7cyclictest1444659-21latency_hist08:05:010
1426909995750,5cyclictest1488150-21latency_hist10:20:011
1426909995746,8cyclictest1483410-21kworker/u8:2+flush-179:010:10:191
1426909995548,4cyclictest1513832-21kworker/u8:2+flush-179:011:40:201
1426909995546,6cyclictest1513832-21kworker/u8:2+events_unbound11:45:251
1426909995444,8cyclictest1498199-21apt-get10:50:101
1426909995345,6cyclictest1439596-21kworker/u8:0+flush-179:008:10:111
1426909995248,3cyclictest1439596-21kworker/u8:0+flush-179:008:49:591
1426908995044,4cyclictest1513832-21kworker/u8:2+flush-179:011:55:220
4577091490,14ptp4l441ktimers/307:10:003
1426909994939,8cyclictest1213033-21systemd-journal07:15:011
1426909994738,7cyclictest1213033-21systemd-journal12:00:001
1426909994736,8cyclictest1213033-21systemd-journal10:33:281
1426909994637,7cyclictest1513832-21kworker/u8:2+flush-179:012:00:201
1426909994632,11cyclictest1213033-21systemd-journal11:35:001
1426909994535,6cyclictest321-21hwrng09:00:591
142691199440,41cyclictest0-21swapper/211:38:592
1426909994437,6cyclictest1475451-21kworker/u8:1+flush-179:009:55:231
142691699430,41cyclictest1467194-21turbostat09:15:003
1426909994335,6cyclictest1459266-21kworker/u8:3+flush-179:008:55:241
1426909994335,5cyclictest1433160-21latency_hist07:30:011
1426909994135,4cyclictest1470408-21kworker/u8:0+flush-179:009:39:561
1426909994135,4cyclictest0-21swapper/110:47:591
1426916994037,2cyclictest0-21swapper/308:37:593
1426909994034,4cyclictest1483403-21systemd-run10:05:001
142691199390,36cyclictest0-21swapper/207:42:002
1426909993933,4cyclictest1497923-21kworker/u8:0+flush-179:011:00:231
1426909993925,11cyclictest1459486-21apt-get08:50:141
142690999391,2cyclictest714-21Xorg09:31:591
1426911993834,2cyclictest0-21swapper/208:12:002
142691199380,36cyclictest0-21swapper/207:26:002
1426909993833,3cyclictest0-21swapper/111:20:011
1426909993830,6cyclictest1518667-21systemd11:55:011
142691699370,35cyclictest0-21swapper/312:13:593
1426911993734,2cyclictest0-21swapper/207:22:592
142691199370,35cyclictest0-21swapper/209:58:592
1426909993735,1cyclictest0-21swapper/110:09:551
1426909993728,6cyclictest1439596-21kworker/u8:0+flush-179:008:30:001
142690999370,36cyclictest0-21swapper/112:37:001
1426908993730,5cyclictest1423818-21kworker/u8:3+events_unbound07:10:020
142691699360,35cyclictest0-21swapper/310:13:593
142691699360,29cyclictest0-21swapper/311:17:593
142691699360,1cyclictest0-21swapper/307:28:593
142691699360,1cyclictest0-21swapper/307:24:003
1426911993633,2cyclictest0-21swapper/208:53:002
142691199360,1cyclictest0-21swapper/210:29:592
142691199360,1cyclictest0-21swapper/209:45:002
142691199360,1cyclictest0-21swapper/209:23:002
142691199360,1cyclictest0-21swapper/209:22:592
142691199360,1cyclictest0-21swapper/209:20:002
4577091350,3ptp4l441ktimers/307:35:143
1426916993533,1cyclictest0-21swapper/309:36:583
1426916993533,1cyclictest0-21swapper/307:18:593
1426911993533,1cyclictest0-21swapper/207:54:592
1426911993532,2cyclictest0-21swapper/208:34:562
1426911993531,2cyclictest0-21swapper/210:08:592
142691199350,1cyclictest0-21swapper/212:08:592
142691199350,1cyclictest0-21swapper/212:08:592
142691199350,1cyclictest0-21swapper/210:39:562
142690999356,15cyclictest1480207-21munin-run09:55:001
1426916993432,1cyclictest0-21swapper/311:59:553
1426911993432,1cyclictest0-21swapper/211:49:592
1426911993431,2cyclictest0-21swapper/212:29:542
142691199340,26cyclictest0-21swapper/208:40:122
1426909993431,2cyclictest0-21swapper/109:19:581
1426916993331,1cyclictest0-21swapper/311:39:593
1426916993331,1cyclictest0-21swapper/310:32:003
1426916993330,2cyclictest0-21swapper/312:39:583
142691199330,26cyclictest0-21swapper/207:30:132
1426911993230,1cyclictest0-21swapper/209:04:582
1426911993229,2cyclictest0-21swapper/209:53:592
1426911993229,2cyclictest0-21swapper/209:37:592
1426911993229,2cyclictest0-21swapper/208:01:592
1426916993128,2cyclictest0-21swapper/310:25:143
142691699310,29cyclictest0-21swapper/310:40:123
1426911993129,1cyclictest0-21swapper/211:04:592
1426911993129,1cyclictest0-21swapper/208:19:592
1426911993128,2cyclictest0-21swapper/212:32:592
142691199310,2cyclictest0-21swapper/209:05:162
142691199310,29cyclictest0-21swapper/211:40:142
142690999315,12cyclictest1467183-21munin-run09:15:011
1426916993028,1cyclictest0-21swapper/312:25:593
1426916993028,1cyclictest0-21swapper/311:21:593
1426916993027,2cyclictest0-21swapper/308:45:133
142691699300,6cyclictest1454206-21turbostat08:35:013
142691699300,28cyclictest0-21swapper/310:55:133
1426911993028,1cyclictest0-21swapper/210:34:592
1426911993027,2cyclictest0-21swapper/211:05:592
142691199300,2cyclictest0-21swapper/209:25:122
142691199300,28cyclictest0-21swapper/212:35:012
142691199300,1cyclictest0-21swapper/210:44:552
4577091290,7ptp4l441ktimers/311:50:003
1426916992927,1cyclictest0-21swapper/311:10:133
1426916992927,1cyclictest0-21swapper/311:06:593
1426916992927,1cyclictest0-21swapper/309:44:003
1426916992927,1cyclictest0-21swapper/307:44:593
1426916992926,2cyclictest0-21swapper/311:25:133
1426916992926,2cyclictest0-21swapper/310:45:143
1426916992926,2cyclictest0-21swapper/308:00:013
142691699290,27cyclictest0-21swapper/310:20:123
142691699290,27cyclictest0-21swapper/308:25:133
142691699290,1cyclictest0-21swapper/310:50:123
142691699290,1cyclictest0-21swapper/308:50:133
142691699290,1cyclictest0-21swapper/308:10:113
1426911992926,2cyclictest0-21swapper/212:15:102
1426911992926,2cyclictest0-21swapper/209:11:592
1426911992926,2cyclictest0-21swapper/208:45:022
142691199290,27cyclictest0-21swapper/212:10:112
142691199290,27cyclictest0-21swapper/211:15:122
142691199290,27cyclictest0-21swapper/209:45:132
142691199290,27cyclictest0-21swapper/208:55:142
142691199290,27cyclictest0-21swapper/208:20:122
4577091280,7ptp4l441ktimers/310:40:003
4577091280,6ptp4l441ktimers/307:34:593
1426916992826,1cyclictest0-21swapper/310:18:003
1426916992825,2cyclictest0-21swapper/309:59:593
1426916992825,2cyclictest0-21swapper/309:30:123
142691699280,26cyclictest0-21swapper/311:30:143
142691699280,1cyclictest0-21swapper/307:50:143
1426911992826,1cyclictest0-21swapper/208:26:592
1426911992826,1cyclictest0-21swapper/207:39:592
1426911992825,2cyclictest0-21swapper/208:05:132
142691199280,27cyclictest0-21swapper/209:30:022
142691199280,20cyclictest0-21swapper/210:15:142
4577091270,7ptp4l61490irq/134-eno1-TxRx-010:10:003
4577091270,6ptp4l441ktimers/308:25:003
4577091270,5ptp4l441ktimers/309:20:013
1426916992725,1cyclictest0-21swapper/311:43:593
1426916992725,1cyclictest0-21swapper/311:02:593
1426916992724,2cyclictest0-21swapper/312:31:593
1426916992724,2cyclictest0-21swapper/309:48:583
1426916992724,1cyclictest0-21swapper/309:05:583
142691699270,26cyclictest0-21swapper/308:58:003
142691699270,26cyclictest0-21swapper/308:44:003
142691699270,1cyclictest0-21swapper/312:22:593
142691699270,1cyclictest0-21swapper/308:00:123
1426911992724,2cyclictest0-21swapper/211:57:592
4577091260,5ptp4l441ktimers/309:30:013
4577091260,5ptp4l441ktimers/308:10:023
1426916992625,1cyclictest0-21swapper/311:50:123
142691699260,25cyclictest0-21swapper/312:15:593
142691199260,2cyclictest0-21swapper/211:27:592
142691199260,24cyclictest0-21swapper/210:45:592
142691199260,24cyclictest0-21swapper/210:20:592
142691199260,24cyclictest0-21swapper/207:14:592
4577091250,5ptp4l441ktimers/312:10:013
4577091250,5ptp4l441ktimers/312:10:003
4577091250,5ptp4l441ktimers/307:49:553
1426916992524,1cyclictest0-21swapper/307:12:003
1426916992523,1cyclictest0-21swapper/309:54:543
1426911992523,1cyclictest0-21swapper/207:57:002
1426911992522,2cyclictest0-21swapper/212:01:592
142691199250,2cyclictest0-21swapper/211:30:592
142691199250,1cyclictest0-21swapper/207:19:592
4577091240,5ptp4l441ktimers/310:04:553
4577091240,4ptp4l441ktimers/309:24:593
4577091240,4ptp4l441ktimers/309:24:593
1426911992422,1cyclictest0-21swapper/207:49:592
1426911992421,2cyclictest0-21swapper/211:51:002
1426911992421,2cyclictest0-21swapper/211:10:592
1426911992421,2cyclictest0-21swapper/210:00:112
1426909992318,4cyclictest0-21swapper/107:10:011
1426911992220,1cyclictest0-21swapper/210:53:592
1426911992213,2cyclictest0-21swapper/212:23:002
1426911992018,1cyclictest0-21swapper/211:23:592
1426911992018,1cyclictest0-21swapper/210:55:592
1426911992017,2cyclictest0-21swapper/210:13:592
1426911991816,1cyclictest0-21swapper/208:38:002
1426916991614,1cyclictest0-21swapper/308:16:583
14269119930,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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