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2026-06-30 - 09:30
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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 100 highest latencies:
System rack0slot2.osadl.org (updated Tue Jun 30, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12631572990,1sleep71263158-21ssh21:27:567
97857325949,7sleep40-21swapper/419:07:404
97859625116,30sleep70-21swapper/719:07:597
97852024838,7sleep50-21swapper/519:06:535
978963993933,5cyclictest1147294-21latency_hist20:34:097
978963993832,5cyclictest1568593-21latency_hist23:34:097
14332752380,0sleep71433273-21ssh22:36:567
978956993735,2cyclictest1690519-21kworker/u16:4+events_unbound00:26:365
978956993735,2cyclictest1421534-21kworker/u16:3+events_unbound23:26:275
978956993734,2cyclictest1203071-21kworker/u16:1+events_unbound21:34:125
978948993735,2cyclictest1298380-21kworker/u16:1+flush-8:022:04:094
978948993733,3cyclictest1568634-21kworker/u16:4+flush-8:023:49:094
97896399360,34cyclictest1458948-21latency_hist22:49:097
978956993634,2cyclictest1349489-21kworker/u16:2+events_unbound23:17:275
978956993634,2cyclictest1349489-21kworker/u16:2+events_unbound23:17:275
978956993634,2cyclictest1227305-21kworker/u16:5+events_unbound21:52:285
978956993533,2cyclictest1639174-21kworker/u16:5+events_unbound00:12:085
978956993533,2cyclictest1334558-21kworker/u16:0+events_unbound22:30:275
978956993533,2cyclictest1334558-21kworker/u16:0+events_unbound22:30:275
978956993533,2cyclictest1298380-21kworker/u16:1+events_unbound23:36:075
978956993533,2cyclictest1298380-21kworker/u16:1+events_unbound23:09:035
978956993533,2cyclictest1203071-21kworker/u16:1+events_unbound21:14:045
978956993432,2cyclictest1703147-21kworker/u16:1+events_unbound00:36:585
978956993432,2cyclictest1666496-21kworker/u16:0+events_unbound00:20:485
978956993432,2cyclictest1630027-21kworker/u16:3+events_unbound00:01:225
978956993331,2cyclictest1581235-21kworker/u16:2+events_unbound23:55:045
978956993331,2cyclictest1581235-21kworker/u16:2+events_unbound23:55:045
978956993331,2cyclictest1544726-21kworker/u16:0+events_unbound23:46:325
978956993331,2cyclictest1421534-21kworker/u16:3+events_unbound22:56:275
978956993331,2cyclictest1373645-21kworker/u16:3+events_unbound22:17:085
978956993331,2cyclictest1298380-21kworker/u16:1+events_unbound23:24:025
978956993331,2cyclictest1298380-21kworker/u16:1+events_unbound23:24:025
978956993331,2cyclictest1298380-21kworker/u16:1+events_unbound23:01:355
978956993331,2cyclictest1298380-21kworker/u16:1+events_unbound22:36:315
978956993331,2cyclictest1041227-21kworker/u16:2+flush-8:021:15:035
978956993330,2cyclictest1334558-21kworker/u16:0+events_unbound22:19:115
978948993331,2cyclictest969150-21kworker/u16:1+flush-8:019:14:394
978956993230,2cyclictest1581235-21kworker/u16:2+events_unbound23:43:035
978956993230,2cyclictest1421534-21kworker/u16:3+events_unbound22:46:035
978956993230,2cyclictest1334558-21kworker/u16:0+events_unbound22:28:475
978956993230,2cyclictest1298380-21kworker/u16:1+events_unbound23:12:425
978956993230,2cyclictest1298380-21kworker/u16:1+events_unbound22:52:405
978956993230,2cyclictest1298380-21kworker/u16:1+events_unbound22:11:005
978956993230,2cyclictest1276452-21kworker/u16:3+events_unbound21:45:325
978956993230,2cyclictest1227305-21kworker/u16:5+events_unbound21:44:085
978956993230,2cyclictest1041227-21kworker/u16:2+events_unbound21:20:315
978956993129,2cyclictest1666496-21kworker/u16:0+events_unbound00:18:435
978956993129,2cyclictest1630027-21kworker/u16:3+events_unbound00:30:315
978956993129,2cyclictest1349489-21kworker/u16:2+events_unbound22:07:475
978956993129,2cyclictest1041227-21kworker/u16:2+events_unbound21:26:565
978956993129,2cyclictest1031560-21kworker/u16:1+events_unbound19:43:245
978948993128,2cyclictest1227305-21kworker/u16:5+events_unbound21:54:244
97841523121,7sleep60-21swapper/619:05:266
978963993023,6cyclictest1361451-21latency_hist22:09:097
978956993028,2cyclictest1629862-21kworker/u16:1+events_unbound00:07:025
978956993028,2cyclictest1544726-21kworker/u16:0+events_unbound23:33:405
978956993028,2cyclictest1421534-21kworker/u16:3+flush-8:022:39:475
978956993028,2cyclictest1334558-21kworker/u16:0+events_unbound21:58:365
978956993028,2cyclictest1298380-21kworker/u16:1+events_unbound22:00:475
978956993028,2cyclictest1203071-21kworker/u16:1+events_unbound21:30:475
978956992927,2cyclictest1041227-21kworker/u16:2+events_unbound20:44:325
978956992826,2cyclictest1544726-21kworker/u16:0+events_unbound23:52:245
978956992826,2cyclictest1021689-21kworker/u16:0+events_unbound19:36:215
978948992826,2cyclictest1041227-21kworker/u16:2+events_unbound20:49:394
978956992725,2cyclictest1041227-21kworker/u16:2+events_unbound19:56:215
978956992725,2cyclictest1021689-21kworker/u16:0+events_unbound21:05:195
978956992725,2cyclictest1021689-21kworker/u16:0+events_unbound21:05:195
978948992725,2cyclictest925029-21kworker/u16:2+flush-8:019:09:254
978948992725,2cyclictest1298380-21kworker/u16:1+events_unbound22:59:324
978963992621,4cyclictest1690486-21latency_hist00:24:097
97896399260,25cyclictest1011803-21latency_hist19:24:097
978956992623,2cyclictest1041227-21kworker/u16:2+events_unbound20:39:195
978948992623,2cyclictest1274092-21kworker/u16:0+events_unbound21:34:374
978956992523,2cyclictest1079173-21kworker/u16:3+flush-8:020:54:395
978956992523,2cyclictest1031560-21kworker/u16:1+events_unbound20:00:105
978956992422,2cyclictest1079173-21kworker/u16:3+events_unbound20:24:385
978956992421,2cyclictest1118271-21kworker/u16:1+events_unbound20:29:195
978948992422,2cyclictest1334558-21kworker/u16:0+flush-8:022:19:094
978948992422,2cyclictest1298380-21kworker/u16:1+events_unbound22:54:224
978948992421,2cyclictest1630027-21kworker/u16:3+events_unbound00:19:344
978956992321,2cyclictest925029-21kworker/u16:2+events_unbound19:11:195
978956992321,2cyclictest1079173-21kworker/u16:3+events_unbound20:53:195
978956992220,2cyclictest1079173-21kworker/u16:3+events_unbound20:08:195
978956992119,2cyclictest1041227-21kworker/u16:2+events_unbound20:09:395
978948992119,2cyclictest1041227-21kworker/u16:2+flush-8:020:39:254
97896399207,11cyclictest1278-21snmpd22:03:377
97896199200,1cyclictest0-21swapper/622:49:296
978956992018,2cyclictest1021689-21kworker/u16:0+events_unbound21:01:205
978948992018,2cyclictest1041227-21kworker/u16:2+events_unbound20:44:244
978963991915,3cyclictest1278-21snmpd21:30:187
978963991810,7cyclictest650-21systemd-journal21:44:097
978956991816,2cyclictest969150-21kworker/u16:1+flush-8:019:14:485
978956991816,2cyclictest1021689-21kworker/u16:0+events_unbound20:16:195
978948991815,2cyclictest1021689-21kworker/u16:0+flush-8:019:44:284
97896399170,1cyclictest0-21swapper/721:34:337
97896399170,15cyclictest124-21kswapd022:13:137
978956991715,2cyclictest1041227-21kworker/u16:2+events_unbound20:22:195
978956991715,2cyclictest1031560-21kworker/u16:1+events_unbound19:52:055
978948991714,3cyclictest1298380-21kworker/u16:1+flush-8:022:44:094
97896399167,3cyclictest6634-21gmain23:37:267
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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