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2026-04-07 - 13:25
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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 rack0slot5.osadl.org (updated Tue Apr 07, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41214899953738,498cyclictest0-21swapper/922:27:2315
412148199513512,1cyclictest4154263-21kworker/7:2+i915-unordered19:55:2313
412151599507506,1cyclictest0-21swapper/1519:55:237
4121489995020,501cyclictest0-21swapper/919:31:2315
412151599491491,0cyclictest149470-21kworker/15:1+i915-unordered23:53:237
41214949948517,29cyclictest0-21swapper/1019:57:232
41214789948325,60cyclictest0-21swapper/619:14:0712
4121494994740,473cyclictest0-21swapper/1023:45:232
41214949947317,453cyclictest0-21swapper/1022:27:232
412146699472470,2cyclictest0-21swapper/319:11:239
41214949946912,454cyclictest0-21swapper/1022:30:232
41214949946912,454cyclictest0-21swapper/1022:30:232
41214949946819,29cyclictest0-21swapper/1000:20:072
41214949946527,437cyclictest0-21swapper/1022:17:232
4121494994620,21cyclictest0-21swapper/1019:31:232
4121504994600,12cyclictest0-21swapper/1200:30:234
41214789945026,30cyclictest0-21swapper/622:22:4512
41214789945024,29cyclictest0-21swapper/622:28:4412
41214789945023,29cyclictest0-21swapper/621:29:0712
41214789944926,30cyclictest0-21swapper/623:23:4512
41214789944925,30cyclictest0-21swapper/623:10:4612
4121494994470,24cyclictest0-21swapper/1021:25:072
412151299445444,1cyclictest4190590-21kworker/14:0+i915-unordered20:35:236
41214949944524,420cyclictest0-21swapper/1021:35:072
41214859944423,30cyclictest0-21swapper/821:22:0814
4121515994430,442cyclictest0-21swapper/1522:29:467
4121515994430,442cyclictest0-21swapper/1522:29:467
412146299443441,2cyclictest1818-21snmpd21:11:358
4121515994400,0cyclictest0-21swapper/1522:35:457
4121515994400,0cyclictest0-21swapper/1522:35:457
4121515994390,0cyclictest0-21swapper/1500:11:467
41215049943818,419cyclictest0-21swapper/1200:39:074
41214669943818,416cyclictest0-21swapper/322:54:469
41214669943811,29cyclictest0-21swapper/321:37:089
41214899943730,29cyclictest0-21swapper/922:03:2315
4121466994359,29cyclictest0-21swapper/321:31:469
4121466994359,28cyclictest0-21swapper/322:16:469
4121466994349,30cyclictest0-21swapper/321:42:079
4121466994348,424cyclictest0-21swapper/321:06:079
4121466994339,29cyclictest0-21swapper/300:07:089
4121466994337,29cyclictest0-21swapper/323:40:449
412149999432430,2cyclictest85305-21kworker/11:1+i915-unordered22:30:233
412149999432430,2cyclictest85305-21kworker/11:1+i915-unordered22:30:233
412149499432430,2cyclictest0-21swapper/1019:11:232
4121459994325,421cyclictest133352-21taskset23:20:461
4121459994324,426cyclictest0-21swapper/100:31:071
4121459994311,426cyclictest0-21swapper/122:08:051
412149999430429,1cyclictest0-21swapper/1122:36:233
412149999430429,1cyclictest0-21swapper/1122:36:233
412149499430427,3cyclictest0-21swapper/1021:11:352
4121489994308,421cyclictest0-21swapper/921:49:4415
4121466994307,29cyclictest0-21swapper/300:36:079
41214789942918,410cyclictest0-21swapper/623:42:2312
4121466994299,417cyclictest0-21swapper/322:45:059
412147899428425,3cyclictest1818-21snmpd00:01:3412
4121466994278,417cyclictest0-21swapper/300:15:099
412147599426426,0cyclictest0-21swapper/519:16:5911
4121466994260,29cyclictest0-21swapper/322:04:089
4121459994266,417cyclictest0-21swapper/120:45:091
41214999942511,413cyclictest0-21swapper/1120:26:233
412147099425424,1cyclictest0-21swapper/421:11:3510
41214949942423,400cyclictest0-21swapper/1019:27:452
4121459994232,420cyclictest0-21swapper/120:37:061
4121456994230,28cyclictest0-21swapper/023:37:060
412150899422420,1cyclictest1818-21snmpd19:16:595
41214949942224,397cyclictest0-21swapper/1020:58:452
4121515994210,420cyclictest0-21swapper/1523:31:067
4121515994210,27cyclictest0-21swapper/1521:57:467
41214949942122,398cyclictest0-21swapper/1000:30:462
41214569942122,398cyclictest0-21swapper/019:12:060
412151299420419,1cyclictest0-21swapper/1421:30:356
41215049942020,399cyclictest0-21swapper/1223:41:454
4121466994200,28cyclictest0-21swapper/321:09:469
4121515994190,0cyclictest0-21swapper/1522:59:057
4121515994190,0cyclictest0-21swapper/1521:32:467
41215049941922,396cyclictest0-21swapper/1220:25:074
41215049941920,398cyclictest0-21swapper/1220:22:074
41215049941919,399cyclictest0-21swapper/1219:28:074
4121515994180,0cyclictest0-21swapper/1523:39:087
4121515994180,0cyclictest0-21swapper/1523:19:467
4121515994180,0cyclictest0-21swapper/1521:06:077
4121515994180,0cyclictest0-21swapper/1500:34:447
412148999418416,2cyclictest125353-21kworker/9:0+events23:19:4515
41214569941822,395cyclictest0-21swapper/019:58:230
4121515994170,0cyclictest0-21swapper/1520:44:197
4121515994170,0cyclictest0-21swapper/1500:00:467
41215049941720,396cyclictest0-21swapper/1222:20:074
41215049941720,396cyclictest0-21swapper/1221:36:454
41215049941720,396cyclictest0-21swapper/1221:17:064
41215049941717,399cyclictest0-21swapper/1222:05:074
41215049941619,396cyclictest0-21swapper/1219:55:064
41215049941618,397cyclictest0-21swapper/1223:49:084
41215049941618,397cyclictest0-21swapper/1223:10:074
41215049941618,397cyclictest0-21swapper/1222:26:084
41215049941618,397cyclictest0-21swapper/1220:46:064
41215049941618,397cyclictest0-21swapper/1219:48:054
41215049941618,397cyclictest0-21swapper/1219:48:054
41215049941618,397cyclictest0-21swapper/1219:23:464
41215049941617,398cyclictest0-21swapper/1223:21:084
41215049941617,398cyclictest0-21swapper/1219:32:454
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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