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2026-07-06 - 11:25
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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
Characteristics of the 100 highest latencies:
System rack3slot0.osadl.org (updated Mon Jul 06, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24908991060,105cyclictest5514-21kworker/0:100:14:140
24941999870,28cyclictest49-21ksoftirqd/400:14:154
24941998128,52cyclictest709-21systemd-logind21:47:134
2492399770,76cyclictest29419-21kworker/u16:100:14:152
24957997427,0cyclictest0-21swapper/600:14:156
75052730,2sleep02490899cyclictest00:19:200
159042700,0sleep00-21swapper/023:00:390
24941996936,1cyclictest17259-21latency_hist21:47:124
24957996750,17cyclictest0-21swapper/621:47:136
38972630,0sleep00-21swapper/022:50:140
2492399590,58cyclictest29425-21kworker/u16:321:47:132
96282510,2sleep22492399cyclictest22:46:402
207962510,0sleep50-21swapper/521:22:175
2491699500,49cyclictest29419-21kworker/u16:100:14:151
307152490,0sleep30-21swapper/322:37:443
2452624926,8sleep60-21swapper/619:03:506
2450424925,9sleep20-21swapper/219:03:302
107552490,1sleep61844-21nfsd22:17:286
24957994815,0cyclictest0-21swapper/621:47:126
123512480,0sleep10-21swapper/100:19:371
96442470,1sleep7721-21dbus-daemon22:21:147
2465024624,9sleep50-21swapper/519:05:335
19552460,0sleep10-21swapper/123:20:591
180582460,0sleep50-21swapper/522:17:515
28712450,0sleep20-21swapper/222:07:152
197522450,0sleep70-21swapper/700:14:157
196542450,0sleep60-21swapper/623:50:516
24934994423,1cyclictest0-21swapper/321:47:133
82792430,1sleep58281-21systemd-cgroups21:07:515
315802430,0sleep40-21swapper/422:47:544
262142430,0sleep70-21swapper/721:43:417
58772420,1sleep75874-21bash23:21:137
2445724222,8sleep30-21swapper/319:02:593
227772410,0sleep60-21swapper/621:55:186
209582410,0sleep60-21swapper/622:04:316
10742410,0sleep20-21swapper/221:17:252
2470324027,9sleep40-21swapper/419:06:204
202762400,0sleep20-21swapper/222:02:352
184722400,0sleep20-21swapper/223:17:552
156842400,1sleep715677-21sshd23:12:087
135452400,0sleep30-21swapper/321:14:223
2493499390,38cyclictest29419-21kworker/u16:100:14:153
2465223928,8sleep70-21swapper/719:05:357
2453823927,9sleep00-21swapper/019:04:000
2451223928,8sleep10-21swapper/119:03:371
206142390,1sleep520601-21bash22:37:145
280062380,0sleep70-21swapper/722:08:407
24908993837,1cyclictest20759-21kworker/0:521:47:140
313502370,2sleep62495799cyclictest23:30:176
24923993534,0cyclictest13550irq/24-ahci[00021:47:122
283902330,0sleep70-21swapper/721:40:057
24949993217,1cyclictest17763-21sshd21:47:135
24908993131,0cyclictest20759-21kworker/0:521:47:120
38462280,0sleep20-21swapper/223:36:292
38462280,0sleep20-21swapper/223:36:292
2494999280,17cyclictest17764-21sshd21:47:125
24941992611,2cyclictest49-21ksoftirqd/423:28:224
51832240,20sleep685150irq/25-em1-rx-023:09:346
2494199248,3cyclictest49-21ksoftirqd/421:24:004
2494199234,3cyclictest49-21ksoftirqd/423:13:154
2494199229,1cyclictest49-21ksoftirqd/423:08:044
2494199228,2cyclictest49-21ksoftirqd/421:14:394
2494199228,1cyclictest49-21ksoftirqd/422:42:254
2494199226,3cyclictest49-21ksoftirqd/423:01:544
2494199224,2cyclictest49-21ksoftirqd/421:17:554
24916992214,1cyclictest19920-21kworker/1:421:47:131
2495799211,3cyclictest65-21ksoftirqd/621:15:486
24949992111,1cyclictest0-21swapper/500:14:165
2494199214,3cyclictest49-21ksoftirqd/423:23:464
2494199214,3cyclictest49-21ksoftirqd/400:33:574
2494199214,1cyclictest49-21ksoftirqd/423:50:524
2494199214,1cyclictest49-21ksoftirqd/422:13:564
24941992113,3cyclictest49-21ksoftirqd/423:19:134
2491699210,20cyclictest10992-21kworker/u16:221:47:121
2496599200,19cyclictest0-21swapper/721:47:137
2495799205,4cyclictest65-21ksoftirqd/623:17:576
2495799204,3cyclictest65-21ksoftirqd/621:37:536
2494199208,2cyclictest49-21ksoftirqd/422:05:554
2494199207,1cyclictest49-21ksoftirqd/421:30:394
2494199207,1cyclictest49-21ksoftirqd/400:23:464
2494199206,3cyclictest49-21ksoftirqd/421:35:444
2494199205,4cyclictest49-21ksoftirqd/422:17:364
2494199204,4cyclictest49-21ksoftirqd/422:25:274
2494199204,1cyclictest49-21ksoftirqd/422:41:364
2494199203,3cyclictest49-21ksoftirqd/400:18:334
24941992013,4cyclictest49-21ksoftirqd/421:11:574
24941992013,3cyclictest49-21ksoftirqd/423:58:014
24941992010,2cyclictest49-21ksoftirqd/423:33:244
24941992010,2cyclictest49-21ksoftirqd/423:33:244
2495799198,1cyclictest65-21ksoftirqd/622:50:046
2495799196,1cyclictest65-21ksoftirqd/621:29:446
2495799195,3cyclictest65-21ksoftirqd/622:29:596
2495799195,3cyclictest65-21ksoftirqd/622:29:596
24957991915,1cyclictest65-21ksoftirqd/600:03:136
2494199198,2cyclictest49-21ksoftirqd/422:08:124
2494199196,2cyclictest49-21ksoftirqd/421:54:064
2494199194,1cyclictest49-21ksoftirqd/400:30:474
24941991916,3cyclictest49-21ksoftirqd/423:05:444
24941991916,3cyclictest49-21ksoftirqd/400:10:354
24941991915,4cyclictest49-21ksoftirqd/423:44:124
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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