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2026-07-01 - 13:37
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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 Wed Jul 01, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12314332990,1sleep40-21swapper/409:39:254
91230927564,7sleep40-21swapper/407:08:224
91223426252,7sleep50-21swapper/507:07:195
912635995351,2cyclictest1285579-21kworker/u16:3+flush-8:010:21:305
912635994540,4cyclictest1196521-21kworker/u16:0+flush-8:009:39:035
912635994138,2cyclictest984439-21kworker/u16:0+flush-8:009:09:345
9030582403,31sleep70-21swapper/707:04:087
641489390,32rtkit-daemon0-21swapper/607:04:056
912639993735,2cyclictest1359748-21kworker/u16:0+events_unbound11:48:576
912639993735,2cyclictest1285579-21kworker/u16:3+events_unbound10:17:026
912640993631,4cyclictest1618191-21latency_hist12:19:037
912639993634,2cyclictest1319957-21kworker/u16:1+events_unbound10:49:296
912639993533,2cyclictest936192-21kworker/u16:1+flush-8:009:11:336
912639993533,2cyclictest1442584-21kworker/u16:3+events_unbound12:06:256
912639993533,2cyclictest1442584-21kworker/u16:3+events_unbound11:59:076
912639993533,2cyclictest1320830-21kworker/u16:5+events_unbound10:37:496
912639993432,2cyclictest984439-21kworker/u16:0+events_unbound09:16:376
912639993432,2cyclictest936192-21kworker/u16:1+flush-8:010:04:326
912639993432,2cyclictest1482877-21kworker/u16:2+events_unbound12:28:186
912639993432,2cyclictest1285579-21kworker/u16:3+events_unbound10:30:416
912639993432,2cyclictest1196521-21kworker/u16:0+events_unbound09:35:466
912635993431,3cyclictest873709-21kworker/u16:2+flush-8:007:34:295
912640993332,0cyclictest0-21swapper/709:34:057
912639993331,2cyclictest1544784-21kworker/u16:1+events_unbound12:22:446
912639993331,2cyclictest1442584-21kworker/u16:3+events_unbound11:56:336
912639993331,2cyclictest1442584-21kworker/u16:3+events_unbound11:40:046
912639993331,2cyclictest1285579-21kworker/u16:3+flush-8:010:13:406
912639993331,2cyclictest1196521-21kworker/u16:0+events_unbound09:47:106
912639993331,2cyclictest1174290-21kworker/u16:5+events_unbound09:57:536
912633993331,2cyclictest936192-21kworker/u16:1+flush-8:009:14:174
912633993331,2cyclictest1139662-21kworker/u16:3+flush-8:009:09:044
912639993230,2cyclictest1544784-21kworker/u16:1+events_unbound11:52:426
912639993230,2cyclictest1482877-21kworker/u16:2+events_unbound12:17:496
912633993229,2cyclictest1319957-21kworker/u16:1+flush-8:010:26:364
912640993129,1cyclictest1517226-21ssh11:34:327
912639993129,2cyclictest936192-21kworker/u16:1+events_unbound09:33:336
912639993129,2cyclictest828327-21kworker/u16:4+flush-8:007:19:296
912639993129,2cyclictest1544784-21kworker/u16:1+events_unbound12:11:206
912639993129,2cyclictest1394203-21kworker/u16:2+events_unbound10:54:046
912639993129,2cyclictest1320830-21kworker/u16:5+events_unbound10:39:046
912639993129,2cyclictest1319957-21kworker/u16:1+flush-8:010:44:346
912639993129,2cyclictest1319957-21kworker/u16:1+flush-8:010:44:346
912639993129,2cyclictest1196521-21kworker/u16:0+events_unbound09:53:066
912640993029,0cyclictest0-21swapper/712:29:057
912640993024,5cyclictest1310106-21latency_hist10:14:037
912639993028,2cyclictest1319957-21kworker/u16:1+flush-8:011:04:366
912639993028,2cyclictest1285579-21kworker/u16:3+events_unbound10:27:066
912639993027,2cyclictest936192-21kworker/u16:1+events_unbound09:59:086
912635993028,2cyclictest1544784-21kworker/u16:1+flush-8:012:34:285
912633993029,1cyclictest1482877-21kworker/u16:2+events_unbound12:30:174
912640992926,2cyclictest1483315-21ssh11:24:137
912640992926,2cyclictest1483315-21ssh11:24:137
912639992927,2cyclictest1442584-21kworker/u16:3+events_unbound11:36:216
912639992927,2cyclictest1319957-21kworker/u16:1+flush-8:011:00:366
912639992927,2cyclictest1319957-21kworker/u16:1+events_unbound11:17:286
912639992927,2cyclictest1319957-21kworker/u16:1+events_unbound11:14:026
912635992927,2cyclictest1482877-21kworker/u16:2+events_unbound11:54:285
912640992827,0cyclictest0-21swapper/711:49:047
912640992823,4cyclictest1507454-21latency_hist11:34:037
912640992725,1cyclictest0-21swapper/712:00:537
912639992725,2cyclictest1605974-21kworker/u16:0+events_unbound12:37:206
912639992725,2cyclictest1285579-21kworker/u16:3+events_unbound10:20:556
912635992724,2cyclictest1544784-21kworker/u16:1+flush-8:012:09:085
912640992625,0cyclictest0-21swapper/711:39:337
912640992619,5cyclictest650-21systemd-journal08:09:037
912635992623,2cyclictest1273552-21kworker/u16:2+flush-8:010:04:095
912640992524,0cyclictest0-21swapper/708:34:287
912640992522,2cyclictest1421299-21basename10:59:037
912640992519,5cyclictest1003829-21latency_hist07:54:037
912639992523,2cyclictest1605974-21kworker/u16:0+events_unbound12:29:586
912639992523,2cyclictest1442584-21kworker/u16:3+events_unbound11:20:316
912635992523,2cyclictest936192-21kworker/u16:1+events_unbound08:34:265
912635992523,2cyclictest1442584-21kworker/u16:3+events_unbound11:14:285
912633992523,2cyclictest1482877-21kworker/u16:2+flush-8:012:09:214
912633992523,2cyclictest1442584-21kworker/u16:3+flush-8:011:34:214
912640992420,3cyclictest1103605-21kthreadcore08:44:217
912639992422,2cyclictest1442584-21kworker/u16:3+events_unbound11:25:526
912639992422,2cyclictest1442584-21kworker/u16:3+events_unbound11:25:526
912639992422,2cyclictest1139662-21kworker/u16:3+flush-8:009:19:556
912639992422,2cyclictest1139662-21kworker/u16:3+flush-8:009:19:556
912633992422,2cyclictest1482877-21kworker/u16:2+events_unbound11:24:164
912633992422,2cyclictest1482877-21kworker/u16:2+events_unbound11:24:164
912640992320,2cyclictest1468420-21ssh11:15:217
912639992321,2cyclictest1359748-21kworker/u16:0+events_unbound11:31:466
912639992321,2cyclictest1174290-21kworker/u16:5+events_unbound09:25:276
912633992321,2cyclictest936192-21kworker/u16:1+events_unbound09:38:584
912633992321,2cyclictest1139662-21kworker/u16:3+events_unbound09:19:214
912633992321,2cyclictest1139662-21kworker/u16:3+events_unbound09:19:214
912640992221,0cyclictest0-21swapper/710:21:417
912640992221,0cyclictest0-21swapper/709:44:297
912640992220,1cyclictest1149659-21diskmemload10:27:227
912639992220,2cyclictest1196521-21kworker/u16:0+flush-8:009:40:296
912635992220,2cyclictest1482877-21kworker/u16:2+flush-8:011:34:315
912640992120,0cyclictest0-21swapper/712:24:247
912640992120,0cyclictest0-21swapper/710:49:377
912640992120,0cyclictest0-21swapper/710:45:137
912640992120,0cyclictest0-21swapper/710:45:137
912640992118,2cyclictest1225455-21ssh09:39:217
91264099210,20cyclictest5934-21gnome-shell12:21:127
912639992119,2cyclictest936192-21kworker/u16:1+flush-8:008:44:036
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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