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2026-09-15 - 02:53
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot6.osadl.org (updated Mon Sep 14, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2261621770,4sleep33049099cyclictest14:26:313
1068911730,5ptp4l401ktimersoftd/309:38:573
3102321570,5sleep23048299cyclictest10:48:012
2014421560,5sleep03047199cyclictest12:11:580
1256421500,4sleep13047799cyclictest12:03:041
220812870,4sleep33049099cyclictest13:18:263
142142800,2sleep30-21swapper/314:17:563
148852730,15sleep341-21ksoftirqd/312:06:233
106891690,1ptp4l401ktimersoftd/312:10:593
261472670,3sleep3401ktimersoftd/312:50:033
301542594,10sleep10-21swapper/109:39:511
302872574,42sleep00-21swapper/009:41:350
22552560,4sleep341-21ksoftirqd/315:12:123
74742550,2sleep10-21swapper/112:32:061
30482995542,6cyclictest33-21ksoftirqd/210:02:482
302122554,38sleep20-21swapper/209:40:362
70862540,3sleep33049099cyclictest14:09:573
30482995422,3cyclictest33-21ksoftirqd/210:37:552
30482995422,3cyclictest33-21ksoftirqd/210:37:552
106891540,1ptp4l401ktimersoftd/312:36:563
30482995339,6cyclictest33-21ksoftirqd/214:12:562
106891490,1ptp4l401ktimersoftd/313:06:363
30482994738,5cyclictest33-21ksoftirqd/212:22:512
30482994636,5cyclictest33-21ksoftirqd/214:17:552
106891460,2ptp4l25633-21kworker/3:011:53:403
106891460,2ptp4l11835-21kworker/3:215:06:523
106891460,1ptp4l401ktimersoftd/313:36:493
30482994422,6cyclictest33-21ksoftirqd/212:28:112
106891440,1ptp4l401ktimersoftd/312:23:143
3047799423,17cyclictest8933-21sed10:02:521
106891420,13ptp4l11835-21kworker/3:212:55:143
3047799413,14cyclictest31791-21ssh14:02:551
30482994029,5cyclictest33-21ksoftirqd/210:52:502
30482993928,5cyclictest33-21ksoftirqd/212:17:522
30482993928,5cyclictest33-21ksoftirqd/212:17:522
30482993915,20cyclictest33-21ksoftirqd/213:42:422
3047799394,9cyclictest23186-21apt-get12:47:531
3047799393,13cyclictest624-21apt-get12:57:531
106891390,1ptp4l401ktimersoftd/314:46:553
106891390,1ptp4l401ktimersoftd/314:28:193
106891390,1ptp4l401ktimersoftd/313:01:533
106891390,1ptp4l401ktimersoftd/312:13:193
30482993827,5cyclictest33-21ksoftirqd/210:12:502
30482993823,9cyclictest33-21ksoftirqd/211:52:512
106891380,1ptp4l401ktimersoftd/314:55:003
106891380,1ptp4l401ktimersoftd/314:41:503
106891380,1ptp4l401ktimersoftd/314:32:453
106891380,1ptp4l401ktimersoftd/314:01:213
106891380,1ptp4l401ktimersoftd/313:53:083
106891380,1ptp4l401ktimersoftd/313:53:083
106891380,1ptp4l401ktimersoftd/313:52:293
106891380,1ptp4l401ktimersoftd/313:27:063
106891380,1ptp4l401ktimersoftd/313:16:073
106891380,1ptp4l401ktimersoftd/313:08:083
106891380,1ptp4l401ktimersoftd/312:40:403
106891380,1ptp4l401ktimersoftd/312:30:043
106891380,1ptp4l401ktimersoftd/311:50:033
106891380,0ptp4l401ktimersoftd/313:38:323
30482993731,3cyclictest33-21ksoftirqd/213:52:422
30482993715,3cyclictest33-21ksoftirqd/214:08:052
106891370,1ptp4l401ktimersoftd/312:22:223
106891370,1ptp4l401ktimersoftd/312:22:223
106891370,1ptp4l401ktimersoftd/310:15:273
106891370,1ptp4l401ktimersoftd/309:48:183
30482993626,4cyclictest33-21ksoftirqd/211:42:512
30482993617,7cyclictest33-21ksoftirqd/214:37:552
106891360,1ptp4l401ktimersoftd/314:51:463
106891360,1ptp4l401ktimersoftd/311:43:503
106891360,1ptp4l401ktimersoftd/311:23:063
30482993528,4cyclictest33-21ksoftirqd/212:47:462
30482993524,9cyclictest33-21ksoftirqd/215:02:592
30482993513,3cyclictest33-21ksoftirqd/213:22:432
106891350,2ptp4l11835-21kworker/3:214:13:113
106891350,1ptp4l401ktimersoftd/314:04:523
106891350,1ptp4l401ktimersoftd/313:43:403
30482993429,3cyclictest33-21ksoftirqd/213:32:422
30482993428,3cyclictest33-21ksoftirqd/212:12:402
30482993428,3cyclictest33-21ksoftirqd/211:32:392
30482993427,3cyclictest33-21ksoftirqd/213:57:542
30482993423,9cyclictest33-21ksoftirqd/210:27:382
30482993421,10cyclictest33-21ksoftirqd/213:43:002
30482993415,11cyclictest33-21ksoftirqd/213:33:252
30482993414,9cyclictest33-21ksoftirqd/212:38:002
106891340,1ptp4l401ktimersoftd/313:30:113
30482993328,3cyclictest33-21ksoftirqd/214:27:552
30482993328,3cyclictest33-21ksoftirqd/210:12:372
30482993327,3cyclictest33-21ksoftirqd/213:08:132
30482993327,3cyclictest33-21ksoftirqd/211:42:402
30482993326,3cyclictest33-21ksoftirqd/215:12:442
106891330,1ptp4l401ktimersoftd/311:42:193
30482993226,3cyclictest33-21ksoftirqd/211:17:392
30482993220,9cyclictest33-21ksoftirqd/212:03:032
30482993220,9cyclictest33-21ksoftirqd/211:58:082
30482993211,3cyclictest33-21ksoftirqd/214:23:002
3048299320,3cyclictest121rcu_preempt14:47:122
106891320,1ptp4l401ktimersoftd/312:01:023
3048299315,6cyclictest33-21ksoftirqd/214:52:242
30482993126,3cyclictest33-21ksoftirqd/212:13:002
30482993125,3cyclictest33-21ksoftirqd/214:58:022
30482993125,3cyclictest33-21ksoftirqd/214:57:452
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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