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2026-04-21 - 16:13
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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 Tue Apr 21, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911200,8ptp4l3341-21kworker/3:208:18:373
121832780,2sleep30-21swapper/313:48:153
121832780,2sleep30-21swapper/313:48:153
81572724,10sleep00-21swapper/008:20:590
106891700,1ptp4l401ktimersoftd/311:48:433
106891690,1ptp4l401ktimersoftd/312:25:123
106891690,1ptp4l401ktimersoftd/311:06:543
79952674,10sleep20-21swapper/208:18:512
87072640,2sleep38709-21rm12:39:173
91032630,1sleep20-21swapper/213:46:412
91032630,1sleep20-21swapper/213:46:412
70632630,3sleep20-21swapper/209:22:272
218682610,2sleep00-21swapper/008:47:170
69372600,2sleep30-21swapper/311:32:203
124782590,3sleep10-21swapper/112:42:321
106891590,1ptp4l401ktimersoftd/311:26:223
45112580,2sleep20-21swapper/209:17:222
303162580,4sleep1834399cyclictest11:56:031
197182580,3sleep219719-21irqrtprio11:12:202
106891570,1ptp4l401ktimersoftd/313:23:053
227352560,2sleep20-21swapper/213:27:182
8348995122,12cyclictest33-21ksoftirqd/213:12:162
106891510,1ptp4l401ktimersoftd/312:18:023
8338994942,4cyclictest9-21ksoftirqd/013:22:170
106891480,1ptp4l401ktimersoftd/313:00:593
78922470,2sleep00-21swapper/011:00:370
8348994610,6cyclictest33-21ksoftirqd/208:29:542
8348994610,6cyclictest33-21ksoftirqd/208:29:542
834899459,5cyclictest33-21ksoftirqd/209:12:542
834899453,7cyclictest321ktimersoftd/211:52:272
8348994510,5cyclictest33-21ksoftirqd/209:33:502
106891450,0ptp4l401ktimersoftd/309:53:363
8348994410,5cyclictest33-21ksoftirqd/208:40:262
834899438,5cyclictest33-21ksoftirqd/208:21:592
834899438,5cyclictest33-21ksoftirqd/208:21:592
8348994320,10cyclictest33-21ksoftirqd/213:01:242
1452914314,8phc2sys41-21ksoftirqd/312:47:183
106891420,7ptp4l401ktimersoftd/313:03:253
106891420,1ptp4l401ktimersoftd/312:44:033
834899414,35cyclictest311rcuc/211:32:032
8348994118,8cyclictest33-21ksoftirqd/213:37:052
8348994118,8cyclictest33-21ksoftirqd/209:27:192
106891410,1ptp4l401ktimersoftd/310:52:253
8348994021,10cyclictest33-21ksoftirqd/210:32:222
8348994018,9cyclictest33-21ksoftirqd/212:52:162
8348994017,9cyclictest33-21ksoftirqd/212:02:322
8348994017,9cyclictest33-21ksoftirqd/212:02:322
8338994032,4cyclictest9-21ksoftirqd/013:32:170
834899393,5cyclictest33-21ksoftirqd/211:58:282
106891390,5ptp4l401ktimersoftd/312:02:053
106891390,5ptp4l401ktimersoftd/312:02:053
106891390,1ptp4l401ktimersoftd/313:35:173
106891390,1ptp4l401ktimersoftd/313:18:423
106891390,1ptp4l401ktimersoftd/312:08:113
106891390,1ptp4l401ktimersoftd/311:27:273
106891390,1ptp4l401ktimersoftd/310:23:183
106891390,1ptp4l401ktimersoftd/310:23:183
106891390,1ptp4l401ktimersoftd/309:07:123
8348993816,10cyclictest33-21ksoftirqd/210:22:212
8348993816,10cyclictest33-21ksoftirqd/210:22:212
106891380,1ptp4l401ktimersoftd/313:45:583
106891380,1ptp4l401ktimersoftd/313:45:583
106891380,1ptp4l401ktimersoftd/312:29:143
106891380,1ptp4l401ktimersoftd/311:56:403
106891380,1ptp4l401ktimersoftd/311:15:303
106891380,1ptp4l401ktimersoftd/310:59:573
106891380,1ptp4l401ktimersoftd/310:49:343
106891380,1ptp4l401ktimersoftd/310:45:133
106891380,1ptp4l401ktimersoftd/310:34:493
834899375,5cyclictest33-21ksoftirqd/211:10:472
8348993718,10cyclictest33-21ksoftirqd/211:47:282
8348993717,9cyclictest33-21ksoftirqd/213:07:312
8338993728,5cyclictest9-21ksoftirqd/011:07:140
106891370,2ptp4l10723-21kworker/3:109:20:503
106891370,1ptp4l401ktimersoftd/313:08:173
106891370,1ptp4l401ktimersoftd/311:58:003
106891370,1ptp4l401ktimersoftd/311:07:433
106891370,1ptp4l401ktimersoftd/310:39:123
106891370,1ptp4l401ktimersoftd/310:28:003
106891370,1ptp4l401ktimersoftd/310:21:553
106891370,1ptp4l401ktimersoftd/310:21:553
106891370,1ptp4l401ktimersoftd/309:40:303
106891370,1ptp4l401ktimersoftd/309:32:143
106891370,1ptp4l401ktimersoftd/309:05:033
834899369,5cyclictest33-21ksoftirqd/212:47:372
834899368,5cyclictest33-21ksoftirqd/211:17:092
834899366,8cyclictest33-21ksoftirqd/210:07:222
834899366,5cyclictest33-21ksoftirqd/213:25:082
834899364,5cyclictest33-21ksoftirqd/212:30:382
834899363,5cyclictest33-21ksoftirqd/212:22:092
834899363,5cyclictest33-21ksoftirqd/211:42:372
834899362,6cyclictest33-21ksoftirqd/211:38:222
8348993619,9cyclictest33-21ksoftirqd/210:12:312
8348993617,9cyclictest33-21ksoftirqd/213:40:372
8348993613,9cyclictest33-21ksoftirqd/210:56:482
106891360,2ptp4l16957-21kworker/3:112:34:053
106891360,1ptp4l401ktimersoftd/313:13:573
106891360,1ptp4l401ktimersoftd/312:52:483
106891360,1ptp4l401ktimersoftd/311:45:563
106891360,0ptp4l401ktimersoftd/312:15:453
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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