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2026-05-06 - 16:49
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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 Wed May 06, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3105921770,5sleep02833199cyclictest11:10:480
968221460,5sleep12833899cyclictest11:55:381
1068911060,3ptp4l401ktimersoftd/308:25:383
28331997664,5cyclictest9-21ksoftirqd/011:20:310
28331997664,5cyclictest9-21ksoftirqd/011:20:310
28331997360,6cyclictest9-21ksoftirqd/012:55:360
106891700,1ptp4l401ktimersoftd/313:58:413
106891690,1ptp4l401ktimersoftd/311:49:433
28331996855,6cyclictest9-21ksoftirqd/013:05:340
28331996754,6cyclictest9-21ksoftirqd/013:55:350
233722670,3sleep32834799cyclictest13:15:373
106891670,1ptp4l401ktimersoftd/313:09:513
28331996653,6cyclictest9-21ksoftirqd/011:00:300
151972650,4sleep02833199cyclictest12:00:430
28331996452,6cyclictest9-21ksoftirqd/013:20:350
28331996350,6cyclictest9-21ksoftirqd/012:15:320
106891620,1ptp4l401ktimersoftd/310:39:003
106891610,1ptp4l401ktimersoftd/309:10:403
28331995845,6cyclictest9-21ksoftirqd/010:45:310
28331995645,5cyclictest9-21ksoftirqd/012:40:330
28331995644,5cyclictest9-21ksoftirqd/011:25:300
106891550,1ptp4l401ktimersoftd/309:21:043
28331995447,3cyclictest9-21ksoftirqd/009:35:300
28331995447,3cyclictest9-21ksoftirqd/009:35:300
28331995442,6cyclictest9-21ksoftirqd/013:35:350
28331995441,7cyclictest9-21ksoftirqd/011:05:320
255612540,2sleep30-21swapper/312:45:223
77922520,1sleep20-21swapper/210:48:182
28331995242,5cyclictest9-21ksoftirqd/010:25:300
28331994535,5cyclictest9-21ksoftirqd/008:45:280
28331994533,6cyclictest9-21ksoftirqd/010:05:290
2816024522,11sleep233-21ksoftirqd/208:29:242
106891450,1ptp4l401ktimersoftd/311:17:413
106891450,1ptp4l401ktimersoftd/311:17:413
106891450,11ptp4l8476-21kworker/3:112:59:183
2833899444,11cyclictest391-21ssh13:25:341
28331994434,5cyclictest9-21ksoftirqd/012:20:330
280482444,29sleep10-21swapper/108:27:571
2793524325,8sleep00-21swapper/008:26:270
28342994229,5cyclictest33-21ksoftirqd/210:30:302
106891410,1ptp4l401ktimersoftd/309:30:293
106891410,1ptp4l401ktimersoftd/309:30:293
2833899392,9cyclictest23061-21ssh13:15:341
106891390,1ptp4l401ktimersoftd/313:30:073
106891390,1ptp4l401ktimersoftd/311:55:243
106891390,0ptp4l401ktimersoftd/312:32:503
106891380,5ptp4l401ktimersoftd/313:24:453
106891380,1ptp4l401ktimersoftd/313:46:283
106891380,1ptp4l401ktimersoftd/313:40:183
106891380,1ptp4l401ktimersoftd/312:51:393
106891380,1ptp4l401ktimersoftd/312:45:173
106891380,1ptp4l401ktimersoftd/312:18:423
106891380,1ptp4l401ktimersoftd/311:35:553
106891380,1ptp4l401ktimersoftd/311:29:133
106891380,1ptp4l401ktimersoftd/311:08:443
106891380,1ptp4l401ktimersoftd/310:59:173
106891380,1ptp4l401ktimersoftd/310:41:333
106891380,1ptp4l401ktimersoftd/310:35:163
28331993731,3cyclictest9-21ksoftirqd/011:40:250
106891370,1ptp4l401ktimersoftd/313:53:003
106891370,1ptp4l401ktimersoftd/313:11:273
106891370,1ptp4l401ktimersoftd/313:00:593
106891370,1ptp4l401ktimersoftd/313:00:593
106891370,1ptp4l401ktimersoftd/312:29:543
106891370,1ptp4l401ktimersoftd/312:12:213
106891370,1ptp4l401ktimersoftd/311:54:103
106891370,1ptp4l401ktimersoftd/311:41:043
106891370,1ptp4l401ktimersoftd/311:33:183
106891370,1ptp4l401ktimersoftd/311:12:503
106891370,1ptp4l401ktimersoftd/311:01:573
106891370,1ptp4l401ktimersoftd/310:51:073
301242360,3sleep2121rcu_preempt13:55:392
28331993625,5cyclictest9-21ksoftirqd/013:40:350
28331993620,12cyclictest9-21ksoftirqd/010:15:470
106891360,0ptp4l401ktimersoftd/312:09:063
106891360,0ptp4l401ktimersoftd/311:24:013
106891360,0ptp4l401ktimersoftd/311:24:013
106891360,0ptp4l401ktimersoftd/310:50:103
28342993529,3cyclictest33-21ksoftirqd/212:45:322
106891350,1ptp4l401ktimersoftd/313:43:583
106891350,1ptp4l401ktimersoftd/312:23:323
106891350,1ptp4l401ktimersoftd/312:03:273
106891350,0ptp4l401ktimersoftd/310:01:193
106891350,0ptp4l401ktimersoftd/309:47:543
299372340,3sleep12833899cyclictest08:30:431
28331993429,3cyclictest9-21ksoftirqd/010:40:190
28331993429,3cyclictest9-21ksoftirqd/009:30:220
28331993429,3cyclictest9-21ksoftirqd/009:30:220
28331993425,5cyclictest9-21ksoftirqd/009:25:290
28331993425,5cyclictest9-21ksoftirqd/009:25:290
28342993324,8cyclictest33-21ksoftirqd/211:11:262
28331993328,3cyclictest9-21ksoftirqd/011:45:300
28342993226,3cyclictest33-21ksoftirqd/211:15:342
28342993226,3cyclictest33-21ksoftirqd/211:15:342
28331993226,3cyclictest9-21ksoftirqd/012:50:220
28331993225,3cyclictest9-21ksoftirqd/011:30:320
28331993219,10cyclictest9-21ksoftirqd/010:30:320
106891320,1ptp4l401ktimersoftd/312:36:433
106891320,0ptp4l401ktimersoftd/313:31:233
28342993125,4cyclictest33-21ksoftirqd/211:00:372
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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