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2026-07-05 - 19:34
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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 rackcslot8.osadl.org (updated Sun Jul 05, 2026 12:50:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16829925455,1cyclictest151rcu_preempt11:14:2422
16519924043,2cyclictest151rcu_preempt11:04:1518
3273912110,203ptp4l0-21swapper/107:08:441
15019916738,92cyclictest0-21swapper/009:56:450
15019916233,107cyclictest0-21swapper/009:23:090
15019915931,86cyclictest0-21swapper/009:40:150
15019915929,129cyclictest0-21swapper/010:20:200
15019915729,79cyclictest0-21swapper/009:16:400
167499151150,1cyclictest151rcu_preempt11:15:1821
167499151150,1cyclictest151rcu_preempt11:15:1821
1548991513,124cyclictest0-21swapper/908:40:1431
1548991513,124cyclictest0-21swapper/908:40:1331
1501991510,83cyclictest0-21swapper/008:15:130
1501991510,83cyclictest0-21swapper/008:15:130
15229914818,83cyclictest0-21swapper/309:15:2323
1534991470,84cyclictest0-21swapper/609:10:2128
15199914412,76cyclictest0-21swapper/212:11:4512
15229914318,93cyclictest0-21swapper/311:46:5823
1674991419,129cyclictest0-21swapper/2809:56:4321
15019914132,93cyclictest0-21swapper/008:50:000
15019914132,93cyclictest0-21swapper/008:50:000
15349914033,69cyclictest0-21swapper/609:28:4828
15059914035,91cyclictest0-21swapper/111:58:541
15059914034,105cyclictest0-21swapper/112:18:571
15059914033,106cyclictest0-21swapper/110:47:491
1534991390,85cyclictest0-21swapper/610:59:0728
15059913932,97cyclictest0-21swapper/109:23:221
15019913942,72cyclictest0-21swapper/010:53:380
15229913818,93cyclictest0-21swapper/310:55:3723
15229913818,72cyclictest0-21swapper/311:20:0823
15199913842,60cyclictest0-21swapper/210:46:1412
15059913831,96cyclictest0-21swapper/109:16:571
15059913830,107cyclictest0-21swapper/111:23:371
15019913817,68cyclictest0-21swapper/011:56:310
15519913793,36cyclictest0-21swapper/1010:45:172
15059913731,76cyclictest0-21swapper/109:35:191
15199913647,60cyclictest0-21swapper/212:05:4312
15199913647,60cyclictest0-21swapper/212:05:4312
16979913521,24cyclictest0-21swapper/3107:39:4025
16979913521,24cyclictest0-21swapper/3107:39:4025
15349913530,66cyclictest0-21swapper/609:30:2428
15349913529,63cyclictest0-21swapper/609:49:0628
15349913528,67cyclictest0-21swapper/611:24:4628
1534991350,77cyclictest0-21swapper/608:40:2028
1534991350,77cyclictest0-21swapper/608:40:2028
15199913529,64cyclictest0-21swapper/209:25:3012
15199913528,30cyclictest0-21swapper/208:50:1512
15349913432,67cyclictest0-21swapper/611:34:2428
15349913428,64cyclictest0-21swapper/611:52:4428
15199913429,70cyclictest0-21swapper/208:16:4912
15199913429,70cyclictest0-21swapper/208:16:4912
15059913427,93cyclictest0-21swapper/109:52:151
15019913464,58cyclictest24996-21sed07:25:170
15019913452,65cyclictest0-21swapper/011:06:500
15019913418,65cyclictest0-21swapper/010:45:320
15349913331,68cyclictest0-21swapper/610:17:5828
15349913331,64cyclictest0-21swapper/607:25:2128
1534991331,80cyclictest0-21swapper/610:30:1528
15229913318,73cyclictest0-21swapper/309:46:2023
1522991330,89cyclictest0-21swapper/310:04:3323
15199913342,64cyclictest0-21swapper/209:55:4512
15199913328,69cyclictest0-21swapper/212:04:1012
15019913327,75cyclictest0-21swapper/007:54:230
15019913327,75cyclictest0-21swapper/007:54:230
1697991320,89cyclictest0-21swapper/3112:34:2425
1697991320,89cyclictest0-21swapper/3112:34:2425
15349913237,68cyclictest0-21swapper/612:20:5428
15349913231,62cyclictest0-21swapper/612:27:5128
15349913231,62cyclictest0-21swapper/612:27:5128
15349913229,67cyclictest0-21swapper/610:13:4228
15349913228,65cyclictest0-21swapper/609:40:3328
15229913218,85cyclictest0-21swapper/309:39:2623
15199913231,69cyclictest0-21swapper/209:35:4012
15199913227,62cyclictest0-21swapper/212:23:3012
15059913225,79cyclictest0-21swapper/109:33:311
15019913245,63cyclictest0-21swapper/007:18:020
15019913227,64cyclictest0-21swapper/009:45:030
15349913131,71cyclictest0-21swapper/608:25:4328
15349913131,71cyclictest0-21swapper/608:25:4328
15349913127,57cyclictest0-21swapper/610:43:3728
15199913129,69cyclictest0-21swapper/211:49:3312
15199913128,65cyclictest0-21swapper/207:45:0312
15199913128,65cyclictest0-21swapper/207:45:0312
15199913127,70cyclictest0-21swapper/209:14:3512
15199913126,62cyclictest0-21swapper/207:35:2612
15199913126,62cyclictest0-21swapper/207:35:2612
15019913152,65cyclictest13-21ksoftirqd/011:18:110
15019913152,65cyclictest13-21ksoftirqd/011:18:110
15019913130,65cyclictest0-21swapper/009:13:320
330891130122,6phc2sys0-21swapper/207:08:4912
16439913045,55cyclictest0-21swapper/2410:49:3617
16439913035,65cyclictest0-21swapper/2410:12:4317
16439913029,68cyclictest0-21swapper/2409:20:2117
16439913028,67cyclictest0-21swapper/2411:00:1717
15349913031,68cyclictest0-21swapper/612:32:0728
15349913031,68cyclictest0-21swapper/612:32:0728
15349913027,64cyclictest0-21swapper/610:48:2628
15199913029,68cyclictest0-21swapper/209:20:1212
15199913027,69cyclictest0-21swapper/207:59:4312
15199913027,69cyclictest0-21swapper/207:59:4312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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