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2026-06-04 - 04:10
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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 Jun 04, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
394926799752334,417cyclictest0-21swapper/300:20:369
39493189954212,27cyclictest0-21swapper/1520:00:367
39493109952637,29cyclictest0-21swapper/1321:13:365
39493159951424,489cyclictest0-21swapper/1423:14:366
394929999514511,2cyclictest0-21swapper/1022:10:362
3949310995139,44cyclictest0-21swapper/1323:56:365
394926499511510,1cyclictest4040000-21kworker/2:1+i915-unordered22:10:368
394929399503501,2cyclictest3980244-21kworker/9:0+i915-unordered20:06:3615
39492599949112,58cyclictest0-21swapper/123:22:571
39492939948814,59cyclictest0-21swapper/920:41:3615
39492769948219,462cyclictest0-21swapper/519:44:3611
394926499480479,1cyclictest4010578-21kworker/2:0+i915-unordered21:06:368
39493109947918,459cyclictest0-21swapper/1323:14:365
39493109947715,0cyclictest0-21swapper/1322:15:365
39493109947625,29cyclictest0-21swapper/1320:43:225
39493109947527,29cyclictest0-21swapper/1321:32:185
39492599947326,29cyclictest0-21swapper/122:53:571
394928699472415,28cyclictest0-21swapper/819:11:2114
39493109947126,29cyclictest191rcu_preempt23:32:315
39492729947021,29cyclictest0-21swapper/421:35:1910
39492729946922,28cyclictest0-21swapper/420:20:2210
39492729946922,28cyclictest0-21swapper/420:20:2210
39492729946822,29cyclictest0-21swapper/420:39:5710
39492729946719,30cyclictest0-21swapper/421:18:1810
39492729946718,30cyclictest0-21swapper/420:35:2010
39492729946718,29cyclictest0-21swapper/422:28:1810
39492729946718,29cyclictest0-21swapper/419:54:5810
39492939946623,29cyclictest0-21swapper/920:51:3615
39492729946616,29cyclictest0-21swapper/422:14:2010
394930499465465,0cyclictest3969056-21kworker/11:1+i915-unordered19:39:363
39492679946518,445cyclictest0-21swapper/319:22:209
39492679946313,30cyclictest0-21swapper/320:57:579
394931099462462,0cyclictest3970007-21kworker/13:1+i915-unordered19:44:365
39493189946116,29cyclictest0-21swapper/1520:28:367
394931899459457,2cyclictest1818-21snmpd22:35:077
39492729945910,29cyclictest0-21swapper/422:46:5710
3949267994598,30cyclictest0-21swapper/319:38:589
3949267994589,30cyclictest0-21swapper/319:59:209
39492679945810,29cyclictest0-21swapper/323:52:569
39493049945711,29cyclictest0-21swapper/1122:58:363
39493049945711,29cyclictest0-21swapper/1122:58:363
3949267994558,31cyclictest0-21swapper/323:50:579
3949259994559,29cyclictest0-21swapper/120:16:221
3949259994559,29cyclictest0-21swapper/120:16:221
3949259994559,29cyclictest0-21swapper/100:07:191
394927699454453,1cyclictest69750irq/159-i91521:06:3611
3949318994537,29cyclictest0-21swapper/1520:03:597
3949259994535,30cyclictest0-21swapper/122:03:571
3949259994532,29cyclictest0-21swapper/121:15:221
394927699452451,1cyclictest69750irq/159-i91520:06:3611
3949259994525,29cyclictest0-21swapper/122:51:581
3949315994513,446cyclictest0-21swapper/1423:42:216
394929999451450,1cyclictest0-21swapper/1021:06:362
3949259994514,29cyclictest0-21swapper/120:58:591
3949259994510,30cyclictest0-21swapper/121:06:201
3949259994510,29cyclictest0-21swapper/121:49:571
3949315994502,29cyclictest0-21swapper/1419:41:196
3949315994502,27cyclictest0-21swapper/1400:07:596
3949259994502,29cyclictest0-21swapper/100:27:181
3949259994500,30cyclictest0-21swapper/121:37:201
3949259994500,30cyclictest0-21swapper/121:24:581
3949293994490,448cyclictest0-21swapper/919:34:3615
3949310994487,440cyclictest0-21swapper/1319:16:365
3949310994480,29cyclictest0-21swapper/1319:49:215
3949286994482,30cyclictest0-21swapper/823:44:2114
3949272994480,30cyclictest0-21swapper/422:47:5710
3949259994480,30cyclictest0-21swapper/119:39:211
3949259994480,29cyclictest0-21swapper/122:25:201
3949318994470,27cyclictest0-21swapper/1519:56:577
39493109944725,29cyclictest142-21ksoftirqd/1319:10:365
3949272994470,27cyclictest0-21swapper/419:33:1910
39492599944725,421cyclictest0-21swapper/120:06:591
39492599944725,419cyclictest0-21swapper/122:01:571
39492599944724,419cyclictest0-21swapper/123:51:571
3949259994470,30cyclictest0-21swapper/120:38:191
394931899446443,2cyclictest4054649-21kworker/15:1+pm22:08:107
39493109944623,419cyclictest0-21swapper/1321:54:585
39493159944525,419cyclictest0-21swapper/1422:50:576
39493159944523,419cyclictest0-21swapper/1421:22:596
39493109944525,418cyclictest0-21swapper/1323:08:585
39493109944525,418cyclictest0-21swapper/1323:08:585
39493109944525,418cyclictest0-21swapper/1321:02:195
39493109944522,420cyclictest0-21swapper/1320:09:205
39493109944522,420cyclictest0-21swapper/1320:09:205
39492729944523,421cyclictest0-21swapper/400:00:2010
39492599944525,418cyclictest0-21swapper/119:58:591
39493109944424,418cyclictest0-21swapper/1322:04:595
39493109944423,419cyclictest0-21swapper/1323:25:225
39493109944422,420cyclictest0-21swapper/1322:45:585
39492599944423,419cyclictest0-21swapper/121:55:581
39493159944325,417cyclictest0-21swapper/1420:27:196
39493159944325,417cyclictest0-21swapper/1419:52:596
39493109944323,418cyclictest0-21swapper/1319:57:205
39493109944322,419cyclictest0-21swapper/1321:48:575
39493109944319,423cyclictest0-21swapper/1300:15:205
39492579944323,419cyclictest0-21swapper/022:56:570
39493159944224,417cyclictest0-21swapper/1423:18:586
39493159944224,417cyclictest0-21swapper/1422:31:196
39493109944223,418cyclictest0-21swapper/1323:52:315
39493109944221,419cyclictest0-21swapper/1321:44:585
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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