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2026-07-06 - 08:33
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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 Mon Jul 06, 2026 00:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1683521995446,537cyclictest0-21swapper/923:29:3515
16834889953817,520cyclictest0-21swapper/022:24:350
168349199535533,2cyclictest1898867-21kworker/1:0+i915-unordered23:29:351
16835339952217,44cyclictest0-21swapper/1119:38:363
1683494995190,0cyclictest0-21swapper/222:45:358
1683533995125,45cyclictest0-21swapper/1100:15:353
168351499507476,31cyclictest0-21swapper/700:15:3513
16835339950140,460cyclictest0-21swapper/1100:23:353
168351899499498,1cyclictest1841737-21kworker/8:2+i915-unordered22:24:3514
16835339949835,462cyclictest0-21swapper/1123:29:353
168351499496495,1cyclictest0-21swapper/700:03:3513
16835339948825,462cyclictest0-21swapper/1119:48:363
16835339948118,462cyclictest0-21swapper/1123:14:353
16835339948118,462cyclictest0-21swapper/1123:14:353
1683533994794,474cyclictest0-21swapper/1121:05:353
16835339947311,460cyclictest0-21swapper/1100:03:353
168350799469468,1cyclictest0-21swapper/521:33:3511
168354499468438,30cyclictest0-21swapper/1423:43:356
168353399466465,1cyclictest0-21swapper/1122:24:353
1683533994664,461cyclictest0-21swapper/1123:05:353
168350799466466,0cyclictest0-21swapper/500:23:3511
16835189946317,30cyclictest0-21swapper/822:56:1914
16835189946316,30cyclictest0-21swapper/820:02:2114
16835189946116,29cyclictest0-21swapper/800:21:5814
16835189946115,30cyclictest0-21swapper/820:01:1814
16835189946115,29cyclictest0-21swapper/800:02:2014
16835189946114,30cyclictest0-21swapper/820:47:2014
16835369946012,29cyclictest0-21swapper/1221:44:584
16835189946014,30cyclictest0-21swapper/819:31:5814
16835189946014,29cyclictest0-21swapper/821:06:5814
16835369945818,28cyclictest0-21swapper/1219:50:354
168354999456454,2cyclictest1938234-21kworker/15:0+i915-unordered00:15:357
16835339945673,0cyclictest1727628-21kworker/11:1+i915-unordered20:03:353
168353399456455,1cyclictest0-21swapper/1122:45:353
168353399455453,2cyclictest0-21swapper/1123:43:353
168353399451449,2cyclictest0-21swapper/1120:38:213
16834889945114,434cyclictest0-21swapper/022:33:210
16835419944826,421cyclictest0-21swapper/1300:19:585
16835419944726,420cyclictest0-21swapper/1322:06:585
16835419944725,421cyclictest0-21swapper/1321:39:585
1683541994470,27cyclictest0-21swapper/1322:03:565
16835419944626,419cyclictest0-21swapper/1321:49:585
16835419944626,419cyclictest0-21swapper/1320:55:575
16835419944624,421cyclictest0-21swapper/1319:50:205
16835419944623,422cyclictest0-21swapper/1322:23:205
16835339944625,420cyclictest0-21swapper/1100:16:583
16835419944525,419cyclictest0-21swapper/1322:36:205
16835339944524,420cyclictest0-21swapper/1123:51:583
16835339944524,420cyclictest0-21swapper/1120:57:213
168350799445444,1cyclictest0-21swapper/523:05:3511
168354999444443,1cyclictest1938234-21kworker/15:0+i915-unordered00:03:357
16835419944424,419cyclictest0-21swapper/1320:18:565
16835419944424,419cyclictest0-21swapper/1319:40:195
16835419944424,419cyclictest0-21swapper/1319:17:585
16835419944423,420cyclictest0-21swapper/1322:44:205
16835419944423,420cyclictest0-21swapper/1321:29:565
16835419944423,420cyclictest0-21swapper/1321:17:195
16835419944423,420cyclictest0-21swapper/1319:33:575
16835419944422,421cyclictest0-21swapper/1323:59:205
168353399444442,1cyclictest1793312-21kworker/11:0+i915-unordered21:12:583
16835339944425,418cyclictest0-21swapper/1119:18:573
16835339944424,419cyclictest0-21swapper/1122:28:193
16835339944423,420cyclictest0-21swapper/1120:36:183
16835339944423,420cyclictest0-21swapper/1120:36:183
16835419944323,419cyclictest0-21swapper/1322:37:195
16835419944322,420cyclictest0-21swapper/1319:45:205
16835419944321,421cyclictest0-21swapper/1300:22:575
16835339944322,420cyclictest0-21swapper/1122:58:563
16835339944322,420cyclictest0-21swapper/1121:18:563
16835419944220,421cyclictest0-21swapper/1300:10:575
16835339944223,418cyclictest0-21swapper/1121:55:203
16835339944222,419cyclictest0-21swapper/1120:18:203
16835339944221,420cyclictest0-21swapper/1119:57:563
16835339944120,420cyclictest0-21swapper/1122:37:573
168349999441440,1cyclictest69750irq/159-i91521:07:359
16835339944021,418cyclictest0-21swapper/1100:32:573
168349999440440,0cyclictest69750irq/159-i91520:14:359
16835449943924,415cyclictest0-21swapper/1423:23:356
1683511994390,26cyclictest0-21swapper/622:23:3512
168350299439437,2cyclictest1881323-21kworker/4:2+i915-unordered23:14:3510
168350299439437,2cyclictest1881323-21kworker/4:2+i915-unordered23:14:3510
168351199438437,1cyclictest1925250-21kworker/6:1+i915-unordered23:43:3512
168354199437436,1cyclictest1784974-21kworker/13:1+i915-unordered21:33:355
16835149943721,415cyclictest0-21swapper/721:48:3513
1683491994370,27cyclictest0-21swapper/123:49:351
168352699436433,3cyclictest1818-21snmpd23:02:472
16835189943618,417cyclictest0-21swapper/823:16:5714
16835189943618,417cyclictest0-21swapper/823:16:5714
16834999943622,414cyclictest0-21swapper/322:34:359
16835419943515,419cyclictest0-21swapper/1319:13:585
16835369943516,418cyclictest0-21swapper/1223:12:584
16835369943516,418cyclictest0-21swapper/1223:12:584
16835189943517,418cyclictest0-21swapper/821:21:5814
168351899434431,2cyclictest1865817-21kworker/8:1+events22:33:2114
16835189943415,418cyclictest0-21swapper/822:01:1914
168350799434433,1cyclictest1818-21snmpd00:20:1111
16835189943320,412cyclictest0-21swapper/820:19:1914
16835189943315,418cyclictest0-21swapper/820:53:2114
16835189943315,417cyclictest0-21swapper/821:39:2114
16835189943215,0cyclictest0-21swapper/819:24:2014
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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