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2026-09-19 - 09:08
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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 Sat Sep 19, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2659021690,4sleep22331999cyclictest03:14:382
2079421650,4sleep22331999cyclictest02:35:232
1068911310,8ptp4l20687-21kworker/3:121:44:023
33192720,5sleep33317-21awk01:10:293
230472634,10sleep10-21swapper/121:42:581
161222620,3sleep323301-21cyclictest01:23:343
195642600,1sleep00-21swapper/002:33:490
176212600,1sleep10-21swapper/123:45:271
249792590,2sleep30-21swapper/301:32:053
106891580,1ptp4l401ktimersoftd/300:23:343
106891570,1ptp4l401ktimersoftd/300:12:273
106891560,1ptp4l401ktimersoftd/323:41:033
106891560,1ptp4l401ktimersoftd/302:10:063
106891560,1ptp4l401ktimersoftd/300:04:553
106891540,1ptp4l401ktimersoftd/323:31:183
248962510,3sleep1241ktimersoftd/102:05:311
23319994838,6cyclictest33-21ksoftirqd/201:00:232
23312994741,3cyclictest25-21ksoftirqd/101:10:231
23312994638,4cyclictest25-21ksoftirqd/123:40:201
23312994638,4cyclictest25-21ksoftirqd/102:40:261
106891460,2ptp4l26675-21kworker/3:103:03:093
106891460,1ptp4l401ktimersoftd/300:51:023
23312994538,4cyclictest25-21ksoftirqd/121:50:171
23312994538,3cyclictest25-21ksoftirqd/122:35:191
23312994437,4cyclictest25-21ksoftirqd/123:20:211
23323994335,4cyclictest41-21ksoftirqd/301:25:223
23312994337,3cyclictest25-21ksoftirqd/100:00:191
23312994235,4cyclictest25-21ksoftirqd/122:15:181
106891410,1ptp4l401ktimersoftd/322:00:193
106891410,0ptp4l401ktimersoftd/301:02:023
23312994034,3cyclictest25-21ksoftirqd/123:50:201
23312994033,4cyclictest25-21ksoftirqd/101:35:231
23312994021,7cyclictest25-21ksoftirqd/122:20:221
106891400,1ptp4l401ktimersoftd/301:51:423
106891400,1ptp4l401ktimersoftd/301:15:253
63232390,16sleep09-21ksoftirqd/001:45:430
23323993932,4cyclictest41-21ksoftirqd/323:45:203
23312993933,3cyclictest25-21ksoftirqd/122:05:171
23312993931,4cyclictest25-21ksoftirqd/100:40:231
23323993831,4cyclictest41-21ksoftirqd/323:00:183
23323993824,11cyclictest41-21ksoftirqd/302:10:413
106891380,1ptp4l401ktimersoftd/302:52:123
106891380,1ptp4l401ktimersoftd/302:52:123
106891380,1ptp4l401ktimersoftd/302:32:303
106891380,1ptp4l401ktimersoftd/302:20:473
106891380,1ptp4l401ktimersoftd/301:06:583
106891380,1ptp4l401ktimersoftd/300:46:323
106891380,1ptp4l401ktimersoftd/300:42:553
106891380,1ptp4l401ktimersoftd/300:32:153
106891380,1ptp4l401ktimersoftd/300:26:433
106891380,0ptp4l401ktimersoftd/302:43:123
23323993731,3cyclictest41-21ksoftirqd/302:25:163
2330799371,3cyclictest5790-21apt-get00:40:230
2317123715,11sleep233-21ksoftirqd/221:44:372
106891370,1ptp4l401ktimersoftd/323:53:043
106891370,1ptp4l401ktimersoftd/303:13:283
106891370,1ptp4l401ktimersoftd/302:59:343
106891370,1ptp4l401ktimersoftd/302:47:523
106891370,1ptp4l401ktimersoftd/301:57:313
106891370,1ptp4l401ktimersoftd/301:42:513
106891370,1ptp4l401ktimersoftd/301:36:443
106891370,0ptp4l401ktimersoftd/322:20:333
106891370,0ptp4l401ktimersoftd/301:47:443
23323993630,3cyclictest41-21ksoftirqd/322:55:193
23323993630,3cyclictest41-21ksoftirqd/322:45:203
23323993624,10cyclictest41-21ksoftirqd/321:45:353
2331299363,7cyclictest25-21ksoftirqd/102:15:421
23312993631,3cyclictest25-21ksoftirqd/100:30:101
23312993631,3cyclictest25-21ksoftirqd/100:10:101
23312993629,3cyclictest25-21ksoftirqd/102:20:231
106891360,1ptp4l401ktimersoftd/302:15:463
106891360,1ptp4l401ktimersoftd/302:01:583
106891360,1ptp4l401ktimersoftd/300:55:463
106891360,1ptp4l401ktimersoftd/300:06:163
106891360,0ptp4l401ktimersoftd/303:09:223
23323993528,4cyclictest41-21ksoftirqd/322:40:183
23312993529,3cyclictest25-21ksoftirqd/100:50:221
23312993528,4cyclictest25-21ksoftirqd/121:45:171
23312993528,3cyclictest25-21ksoftirqd/101:15:151
23312993523,3cyclictest25-21ksoftirqd/102:10:291
23312993516,7cyclictest25-21ksoftirqd/101:10:101
216442357,13sleep00-21swapper/021:40:230
106891350,1ptp4l401ktimersoftd/323:57:153
106891350,1ptp4l401ktimersoftd/300:15:533
23319993421,11cyclictest33-21ksoftirqd/203:07:202
2331299347,8cyclictest25-21ksoftirqd/121:55:261
2331299343,3cyclictest121rcu_preempt23:15:301
23312993429,3cyclictest25-21ksoftirqd/102:45:411
23312993428,3cyclictest25-21ksoftirqd/100:45:231
23312993428,3cyclictest25-21ksoftirqd/100:15:101
23312993425,7cyclictest25-21ksoftirqd/102:25:281
2331299342,3cyclictest121rcu_preempt01:56:101
23312993416,4cyclictest25-21ksoftirqd/102:32:501
106891340,11ptp4l401ktimersoftd/322:25:253
2331299338,5cyclictest25-21ksoftirqd/100:35:331
2331299338,4cyclictest25-21ksoftirqd/101:20:321
23312993327,3cyclictest47050irq/101-ens3-Tx23:35:081
23307993328,3cyclictest9-21ksoftirqd/003:00:130
23307993324,4cyclictest9-21ksoftirqd/000:25:200
106891330,1ptp4l401ktimersoftd/302:36:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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