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2025-11-24 - 03:15
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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 Mon Nov 24, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29444099620,60cyclictest864380-21latency_hist08:03:247
29389225949,7sleep50-21swapper/503:20:445
29391225848,7sleep60-21swapper/603:21:016
294440995751,5cyclictest304361-21latency_hist03:28:257
29388025746,7sleep40-21swapper/403:20:354
294440994843,4cyclictest571162-21latency_hist05:38:257
294440994746,0cyclictest0-21swapper/706:26:477
294427994744,3cyclictest318182-21kworker/u16:0+flush-8:003:33:254
294427994543,2cyclictest318182-21kworker/u16:0+flush-8:004:03:264
2856582436,31sleep70-21swapper/703:18:457
294427994139,2cyclictest449719-21kworker/u16:0+flush-8:006:08:254
29444099400,38cyclictest480116-21latency_hist04:53:257
294440993835,2cyclictest677121-21kthreadcore06:28:467
294436993836,2cyclictest284383-21kworker/u16:3+events_unbound03:52:356
294436993835,2cyclictest500396-21kworker/u16:4+events_unbound05:23:346
294427993835,2cyclictest894631-21kworker/u16:6+flush-8:008:28:254
294436993735,2cyclictest712601-21kworker/u16:0+flush-8:007:28:516
294431993735,2cyclictest284383-21kworker/u16:3+events_unbound03:42:355
294436993634,2cyclictest303975-21kworker/u16:2+flush-8:003:43:516
294427993632,3cyclictest471109-21kworker/u16:2+events_unbound04:53:404
294436993533,2cyclictest651123-21kworker/u16:3+events_unbound06:38:586
294436993533,2cyclictest642908-21kworker/u16:1+flush-8:006:14:346
294436993533,2cyclictest500396-21kworker/u16:4+flush-8:006:36:346
294436993432,2cyclictest701717-21kworker/u16:2+flush-8:007:10:506
294436993432,2cyclictest284383-21kworker/u16:3+flush-8:003:38:546
294436993431,2cyclictest284383-21kworker/u16:3+flush-8:003:23:286
294431993432,2cyclictest687018-21kworker/u16:1+flush-8:006:46:465
294427993431,3cyclictest449719-21kworker/u16:0+flush-8:005:13:504
294440993332,0cyclictest0-21swapper/704:30:287
294436993331,2cyclictest914904-21kworker/u16:3+flush-8:008:27:106
294436993331,2cyclictest914904-21kworker/u16:3+events_unbound08:30:356
294436993331,2cyclictest687018-21kworker/u16:1+events_unbound06:50:496
294436993331,2cyclictest500396-21kworker/u16:4+events_unbound05:43:346
294436993331,2cyclictest449719-21kworker/u16:0+events_unbound06:12:566
294436993330,2cyclictest416272-21kworker/u16:3+flush-8:004:23:356
294436993230,2cyclictest712601-21kworker/u16:0+events_unbound07:06:236
294436993230,2cyclictest575866-21kworker/u16:3+flush-8:005:49:396
294436993230,2cyclictest489950-21kworker/u16:3+events_unbound04:57:076
294436993230,2cyclictest449719-21kworker/u16:0+flush-8:005:14:356
294436993229,2cyclictest687018-21kworker/u16:1+flush-8:006:53:266
294431993230,2cyclictest860151-21kworker/u16:2+flush-8:008:22:105
294431993230,2cyclictest687018-21kworker/u16:1+events_unbound07:09:395
294431993230,2cyclictest550569-21kworker/u16:2+flush-8:005:38:185
294431993230,2cyclictest550569-21kworker/u16:2+events_unbound05:40:385
294431993230,2cyclictest339042-21kworker/u16:1+flush-8:004:52:465
294427993230,2cyclictest773419-21kworker/u16:3+flush-8:008:08:244
294440993130,0cyclictest0-21swapper/708:12:507
29444099310,29cyclictest896908-21cut08:18:467
294436993129,2cyclictest873492-21kworker/u16:0+events_unbound08:14:556
294436993129,2cyclictest823852-21kworker/u16:1+flush-8:008:00:546
294436993129,2cyclictest701717-21kworker/u16:2+events_unbound07:26:476
294436993129,2cyclictest701717-21kworker/u16:2+events_unbound07:14:346
294431993129,2cyclictest823852-21kworker/u16:1+events_unbound07:56:495
294431993129,2cyclictest773419-21kworker/u16:3+events_unbound07:52:505
294431993129,2cyclictest550569-21kworker/u16:2+flush-8:005:44:195
294431993129,2cyclictest449719-21kworker/u16:0+events_unbound05:05:065
294431993129,2cyclictest339042-21kworker/u16:1+events_unbound04:34:195
294431993128,2cyclictest489950-21kworker/u16:3+events_unbound05:13:285
294440993027,2cyclictest722918-21perf06:53:257
294436993028,2cyclictest823852-21kworker/u16:1+events_unbound08:35:116
294436993028,2cyclictest632274-21kworker/u16:2+events_unbound06:21:506
294436993028,2cyclictest349152-21kworker/u16:4+events_unbound04:17:156
294436993028,2cyclictest284383-21kworker/u16:3+flush-8:003:58:596
294431993028,2cyclictest687018-21kworker/u16:1+events_unbound06:56:185
294431993028,2cyclictest500396-21kworker/u16:4+flush-8:006:31:155
294431993028,2cyclictest449719-21kworker/u16:0+events_unbound05:59:105
294431993028,2cyclictest318182-21kworker/u16:0+flush-8:003:51:405
294436992927,2cyclictest925152-21kworker/u16:2+flush-8:008:38:466
294436992927,2cyclictest873492-21kworker/u16:0+events_unbound08:22:466
294436992927,2cyclictest712601-21kworker/u16:0+events_unbound07:39:236
294436992927,2cyclictest701717-21kworker/u16:2+events_unbound06:59:316
294436992927,2cyclictest687018-21kworker/u16:1+events_unbound06:47:346
294436992927,2cyclictest500396-21kworker/u16:4+events_unbound05:34:486
294436992927,2cyclictest416272-21kworker/u16:3+events_unbound04:19:356
294436992927,2cyclictest339042-21kworker/u16:1+events_unbound04:48:196
294436992927,2cyclictest339042-21kworker/u16:1+events_unbound04:06:266
294431992927,2cyclictest925152-21kworker/u16:2+flush-8:008:48:555
294431992927,2cyclictest712601-21kworker/u16:0+events_unbound07:47:145
294431992927,2cyclictest701717-21kworker/u16:2+flush-8:006:59:515
294431992927,2cyclictest701717-21kworker/u16:2+events_unbound07:32:465
294431992927,2cyclictest651123-21kworker/u16:3+flush-8:006:26:385
294431992927,2cyclictest489950-21kworker/u16:3+flush-8:005:11:435
294431992926,2cyclictest339042-21kworker/u16:1+flush-8:004:17:465
294436992826,2cyclictest945024-21kworker/u16:0+events_unbound08:50:476
294436992826,2cyclictest945024-21kworker/u16:0+events_unbound08:46:486
294436992826,2cyclictest773419-21kworker/u16:3+flush-8:008:07:556
294436992826,2cyclictest449719-21kworker/u16:0+flush-8:004:38:516
294436992826,2cyclictest318182-21kworker/u16:0+events_unbound03:57:276
294436992826,2cyclictest318182-21kworker/u16:0+events_unbound03:37:276
294436992826,2cyclictest303975-21kworker/u16:2+events_unbound03:33:036
294436992825,2cyclictest500396-21kworker/u16:4+events_unbound06:03:266
294431992826,2cyclictest925152-21kworker/u16:2+flush-8:008:41:265
294431992826,2cyclictest914904-21kworker/u16:3+flush-8:008:33:305
294431992826,2cyclictest823852-21kworker/u16:1+flush-8:008:18:155
294431992826,2cyclictest823852-21kworker/u16:1+events_unbound08:00:225
294431992826,2cyclictest773419-21kworker/u16:3+events_unbound07:42:585
294431992826,2cyclictest712601-21kworker/u16:0+flush-8:007:36:265
294431992826,2cyclictest687018-21kworker/u16:1+events_unbound06:51:425
294431992826,2cyclictest489950-21kworker/u16:3+flush-8:004:56:595
294431992826,2cyclictest409129-21kworker/u16:2+events_unbound04:30:035
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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