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2026-04-30 - 17:23
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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 Thu Apr 30, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
47477399622622,0cyclictest0-21swapper/523:05:0311
4748159953236,494cyclictest0-21swapper/1523:35:417
474812995309,520cyclictest151-21ksoftirqd/1419:57:416
474812995309,520cyclictest151-21ksoftirqd/1419:57:416
4747779952921,507cyclictest0-21swapper/622:29:4112
47478899512512,0cyclictest0-21swapper/900:27:4115
47479799500499,1cyclictest0-21swapper/1120:32:413
47476799485485,0cyclictest539887-21kworker/3:2+i915-unordered20:32:419
4747889948215,466cyclictest0-21swapper/922:37:4115
474754994824,477cyclictest0-21swapper/022:11:410
4747889947626,29cyclictest0-21swapper/920:09:2515
47477799476474,2cyclictest576095-21kworker/6:1+i915-unordered22:15:4112
4748129947426,28cyclictest0-21swapper/1419:51:046
4747919946818,29cyclictest0-21swapper/1020:42:252
474788994680,467cyclictest0-21swapper/923:17:4115
4747919946620,28cyclictest474748-21cyclictest22:13:022
4747919946520,30cyclictest0-21swapper/1020:05:252
4747919946520,30cyclictest0-21swapper/1020:05:252
47477799464464,0cyclictest495586-21kworker/6:1+i915-unordered19:57:4112
47477799464464,0cyclictest495586-21kworker/6:1+i915-unordered19:57:4112
47479799462462,0cyclictest0-21swapper/1120:11:413
47478699460459,1cyclictest69750irq/159-i91522:29:4114
47478699457456,1cyclictest1818-21snmpd20:00:5214
47478699457456,1cyclictest1818-21snmpd20:00:5214
47475899457456,1cyclictest0-21swapper/100:25:411
474773994533,30cyclictest0-21swapper/520:04:0311
474773994533,30cyclictest0-21swapper/520:04:0311
4747919945225,29cyclictest0-21swapper/1021:42:272
4747919945123,29cyclictest0-21swapper/1022:45:022
4747919945123,29cyclictest0-21swapper/1022:45:022
474812994500,448cyclictest0-21swapper/1421:27:026
47476799450449,0cyclictest511620-21kworker/3:0+i915-unordered20:11:419
474758994500,2cyclictest0-21swapper/121:17:151
4747919944924,28cyclictest0-21swapper/1023:52:262
4747549944910,438cyclictest0-21swapper/019:10:410
474781994480,30cyclictest0-21swapper/720:51:0313
47478699447446,1cyclictest69750irq/159-i91519:51:4114
4747919944626,418cyclictest0-21swapper/1022:08:272
4748099944523,421cyclictest0-21swapper/1321:41:265
4748099944522,422cyclictest0-21swapper/1322:17:035
4747739944525,419cyclictest0-21swapper/520:19:0311
4747919944422,420cyclictest0-21swapper/1019:55:022
4747919944422,420cyclictest0-21swapper/1019:55:022
4748099944222,419cyclictest0-21swapper/1319:28:045
47479199442442,0cyclictest0-21swapper/1019:10:412
4747919944222,418cyclictest0-21swapper/1021:54:022
474777994422,29cyclictest0-21swapper/621:50:4112
4748129944122,417cyclictest0-21swapper/1420:02:036
4748129944122,417cyclictest0-21swapper/1420:02:036
4747739943919,419cyclictest0-21swapper/519:59:2511
4747739943919,419cyclictest0-21swapper/519:59:2511
4747889943817,417cyclictest0-21swapper/921:29:0415
47478199438432,5cyclictest1818-21snmpd23:44:5213
47475499438437,1cyclictest0-21swapper/022:29:410
474812994379,30cyclictest0-21swapper/1420:58:276
4747889943716,420cyclictest0-21swapper/921:44:0415
47475899437437,0cyclictest634501-21kworker/1:3+i915-unordered23:17:411
4747589943721,415cyclictest0-21swapper/122:47:411
4747589943721,415cyclictest0-21swapper/122:47:411
4747889943616,419cyclictest0-21swapper/920:52:2315
47478699436436,0cyclictest69750irq/159-i91520:32:4114
4747739943617,418cyclictest0-21swapper/520:35:0211
4747549943521,413cyclictest0-21swapper/020:07:040
4747549943521,413cyclictest0-21swapper/020:07:040
4747889943417,416cyclictest0-21swapper/922:42:4115
47475499434433,0cyclictest0-21swapper/020:00:520
47475499434433,0cyclictest0-21swapper/020:00:520
4747889943312,420cyclictest0-21swapper/923:12:2615
4747779943319,413cyclictest0-21swapper/621:42:4112
4748129943212,419cyclictest0-21swapper/1420:23:256
4748129943210,421cyclictest0-21swapper/1420:34:236
4747889943212,418cyclictest0-21swapper/921:19:0415
4747889943211,420cyclictest0-21swapper/921:09:2615
4747889943211,420cyclictest0-21swapper/900:02:0215
4747739943221,410cyclictest0-21swapper/519:30:4111
47476999432432,0cyclictest0-21swapper/422:40:3510
4748129943110,420cyclictest0-21swapper/1422:16:026
4748129943011,418cyclictest0-21swapper/1421:20:046
474809994299,419cyclictest0-21swapper/1319:52:265
47479799429429,0cyclictest0-21swapper/1120:27:413
47478699429427,2cyclictest0-21swapper/822:46:5314
47478699429427,2cyclictest0-21swapper/822:46:5314
47476299429429,0cyclictest0-21swapper/223:47:138
47475899429420,6cyclictest523707-21kworker/1:5+events20:34:021
474812994287,420cyclictest0-21swapper/1421:48:046
474788994287,420cyclictest0-21swapper/922:28:0415
47477399428428,0cyclictest0-21swapper/521:03:4111
474812994278,417cyclictest0-21swapper/1421:14:036
474812994275,420cyclictest0-21swapper/1420:59:266
474809994277,419cyclictest0-21swapper/1323:11:035
474788994276,419cyclictest0-21swapper/900:12:0215
474812994269,417cyclictest0-21swapper/1421:49:416
47479799426426,0cyclictest0-21swapper/1121:35:413
4747589942616,410cyclictest0-21swapper/122:24:411
474754994269,416cyclictest0-21swapper/023:25:020
474809994254,421cyclictest0-21swapper/1321:08:035
474791994257,0cyclictest0-21swapper/1000:12:232
474791994252,422cyclictest0-21swapper/1000:16:222
47475499425424,1cyclictest0-21swapper/019:51:410
47481599424423,1cyclictest26550irq/134-xhci_hcd22:17:417
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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