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2026-05-08 - 19:21
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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 Fri May 08, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1503009950910,498cyclictest0-21swapper/723:10:2613
1503009950910,498cyclictest0-21swapper/723:10:2613
150277995023,498cyclictest0-21swapper/123:40:261
1503319949712,29cyclictest0-21swapper/1420:00:266
15030899490489,1cyclictest371142-21kworker/9:1+i915-unordered23:40:2615
15030499482482,0cyclictest195302-21kworker/8:0+i915-unordered20:12:2614
15028999475474,1cyclictest0-21swapper/420:00:2610
1503369947325,29cyclictest0-21swapper/1522:36:477
1503319946726,0cyclictest0-21swapper/1420:49:266
150331994540,57cyclictest0-21swapper/1400:19:116
150331994523,29cyclictest0-21swapper/1423:08:486
150331994523,29cyclictest0-21swapper/1423:08:486
150331994520,25cyclictest0-21swapper/1421:56:106
1503369944925,28cyclictest0-21swapper/1519:45:477
150289994470,446cyclictest0-21swapper/423:28:4710
150300994464,29cyclictest0-21swapper/722:50:2613
1503369944525,416cyclictest0-21swapper/1521:20:267
1502949944519,28cyclictest0-21swapper/519:09:1211
1502859944325,28cyclictest0-21swapper/323:57:269
1503139944221,29cyclictest0-21swapper/1020:48:222
15030099441440,1cyclictest0-21swapper/722:46:2613
1503009944120,29cyclictest0-21swapper/722:00:2613
1503319943918,30cyclictest0-21swapper/1422:43:496
1503009943913,28cyclictest0-21swapper/722:43:2113
1503319943811,30cyclictest0-21swapper/1422:13:486
15028599438435,2cyclictest0-21swapper/320:03:489
1502819943614,421cyclictest0-21swapper/220:46:098
150336994359,30cyclictest0-21swapper/1521:44:097
1502859943517,417cyclictest0-21swapper/320:32:269
1502859943517,417cyclictest0-21swapper/320:32:269
1503369943414,418cyclictest0-21swapper/1523:55:107
1503369943312,420cyclictest0-21swapper/1500:01:097
1502899943213,418cyclictest0-21swapper/420:56:4810
1502899943011,418cyclictest0-21swapper/420:09:1110
1502859943019,410cyclictest0-21swapper/321:05:269
150318994299,419cyclictest0-21swapper/1123:17:103
150318994299,419cyclictest0-21swapper/1123:17:103
150318994298,420cyclictest0-21swapper/1120:51:473
150318994298,420cyclictest0-21swapper/1100:14:103
150336994280,30cyclictest0-21swapper/1521:54:477
150318994287,420cyclictest0-21swapper/1121:54:113
150318994275,421cyclictest0-21swapper/1123:59:493
150318994275,421cyclictest0-21swapper/1120:23:093
150318994275,421cyclictest0-21swapper/1120:23:093
150289994267,418cyclictest0-21swapper/423:37:4810
150318994256,417cyclictest0-21swapper/1120:43:483
150318994255,419cyclictest0-21swapper/1122:48:113
1503369942423,398cyclictest0-21swapper/1521:15:497
150300994246,30cyclictest0-21swapper/723:21:2613
150300994246,30cyclictest0-21swapper/723:21:2613
150336994231,29cyclictest0-21swapper/1523:05:487
1503319942324,397cyclictest0-21swapper/1419:21:106
1502899942324,398cyclictest0-21swapper/419:18:4810
1502819942325,397cyclictest0-21swapper/222:37:088
1502819942325,397cyclictest0-21swapper/219:16:128
1502819942324,398cyclictest0-21swapper/223:59:108
150281994231,418cyclictest0-21swapper/221:03:498
150300994222,30cyclictest0-21swapper/719:42:2613
1502949942223,395cyclictest0-21swapper/500:33:4711
1502899942223,398cyclictest0-21swapper/419:28:4810
1502819942224,397cyclictest0-21swapper/220:50:498
1502819942223,398cyclictest0-21swapper/223:30:498
1502819942223,398cyclictest0-21swapper/223:10:128
1502819942223,398cyclictest0-21swapper/223:10:128
1503369942124,394cyclictest0-21swapper/1522:50:097
1503369942124,394cyclictest0-21swapper/1521:24:267
1503369942123,396cyclictest0-21swapper/1523:17:477
1503369942123,396cyclictest0-21swapper/1523:17:477
150300994212,30cyclictest0-21swapper/719:44:2613
150289994211,419cyclictest0-21swapper/422:32:0810
1502819942123,397cyclictest0-21swapper/219:49:108
1502819942122,398cyclictest0-21swapper/221:36:128
150336994209,411cyclictest0-21swapper/1521:34:267
1503189942024,396cyclictest0-21swapper/1100:18:493
1503189942022,397cyclictest0-21swapper/1120:01:533
150318994200,417cyclictest0-21swapper/1123:03:473
150304994203,417cyclictest0-21swapper/822:00:4714
1502819942021,398cyclictest0-21swapper/222:25:088
150281994201,417cyclictest0-21swapper/222:54:108
1503189941920,398cyclictest0-21swapper/1122:55:473
1503189941920,398cyclictest0-21swapper/1121:46:473
1503049941924,394cyclictest0-21swapper/820:58:4914
1503089941822,395cyclictest0-21swapper/923:21:4915
1503089941822,395cyclictest0-21swapper/923:21:4915
15029699418417,1cyclictest69750irq/159-i91522:05:2612
150285994180,28cyclictest0-21swapper/300:00:269
1503369941717,397cyclictest0-21swapper/1522:17:477
15033199417414,2cyclictest268587-21gnome-shell20:07:266
1502899941719,397cyclictest0-21swapper/400:22:4710
1502819941718,398cyclictest0-21swapper/200:17:078
1503369941618,396cyclictest0-21swapper/1519:16:497
1503369941617,397cyclictest0-21swapper/1523:11:477
1503369941617,397cyclictest0-21swapper/1523:11:477
1503369941614,401cyclictest0-21swapper/1500:17:477
15032399416413,1cyclictest344197-21kworker/12:0+events23:11:114
15032399416413,1cyclictest344197-21kworker/12:0+events23:11:114
150296994160,415cyclictest0-21swapper/620:07:2612
1502819941618,397cyclictest0-21swapper/220:29:088
1502819941618,397cyclictest0-21swapper/220:29:088
1502819941617,398cyclictest0-21swapper/220:13:138
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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