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2026-06-04 - 20:15
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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 Thu Jun 04, 2026 12:49:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1012099324130,1cyclictest151rcu_preempt10:06:0030
3273913120,304ptp4l0-21swapper/107:06:511
3273913120,304ptp4l0-21swapper/107:06:501
87882194187,6sleep140-21swapper/1407:08:376
87882194187,6sleep140-21swapper/1407:08:376
1016799171169,1cyclictest106-21ksoftirqd/1509:42:167
10148991634,129cyclictest201541kworker/u65:011:47:124
10148991634,129cyclictest201541kworker/u65:011:47:124
101679915853,81cyclictest0-21swapper/1510:13:487
10100991583,154cyclictest0-21swapper/509:31:2327
10100991583,136cyclictest0-21swapper/509:20:5427
10100991573,117cyclictest0-21swapper/509:45:5027
10100991573,114cyclictest0-21swapper/510:00:0227
100749915722,91cyclictest0-21swapper/007:56:590
1016199155153,2cyclictest0-21swapper/1410:26:366
101209915425,63cyclictest0-21swapper/810:25:1630
10100991503,92cyclictest0-21swapper/510:35:0227
101679914944,80cyclictest0-21swapper/1512:16:117
10100991493,139cyclictest0-21swapper/510:14:4227
102129914736,80cyclictest0-21swapper/2509:20:1818
10100991473,92cyclictest0-21swapper/510:18:2627
1007999147146,1cyclictest151rcu_preempt10:01:161
100749914617,78cyclictest0-21swapper/008:40:020
101489914539,55cyclictest0-21swapper/1211:04:514
10074991450,86cyclictest0-21swapper/010:03:590
102129914463,80cyclictest0-21swapper/2511:02:2718
10100991443,86cyclictest0-21swapper/511:05:2827
101679914337,88cyclictest0-21swapper/1511:50:327
101679914337,88cyclictest0-21swapper/1511:50:327
101489914359,24cyclictest0-21swapper/1208:35:144
100749914320,92cyclictest0-21swapper/007:30:190
1022899142105,37cyclictest191-21ksoftirqd/2912:37:0722
1022899142105,37cyclictest191-21ksoftirqd/2912:37:0722
10228991420,88cyclictest0-21swapper/2911:13:5322
10228991420,88cyclictest0-21swapper/2911:13:5222
100799914236,103cyclictest0-21swapper/112:25:351
100799914236,103cyclictest0-21swapper/112:25:341
10100991413,100cyclictest0-21swapper/511:04:2327
10204991400,86cyclictest0-21swapper/2312:15:1516
100799914030,35cyclictest0-21swapper/107:40:421
100749914024,87cyclictest0-21swapper/010:32:020
102129913928,64cyclictest0-21swapper/2512:00:5218
102129913928,64cyclictest0-21swapper/2512:00:5218
100749913940,98cyclictest0-21swapper/011:53:460
100749913940,98cyclictest0-21swapper/011:53:460
102129913847,63cyclictest0-21swapper/2512:14:4518
102129913847,63cyclictest0-21swapper/2512:14:4518
100749913842,59cyclictest0-21swapper/008:31:430
100749913836,86cyclictest0-21swapper/010:19:120
100749913828,81cyclictest0-21swapper/010:27:460
102129913727,62cyclictest0-21swapper/2511:42:0918
102129913727,62cyclictest0-21swapper/2511:42:0818
10212991370,81cyclictest0-21swapper/2512:35:2118
10212991370,81cyclictest0-21swapper/2512:35:2018
101929913718,74cyclictest0-21swapper/2010:37:4413
10167991370,84cyclictest0-21swapper/1512:23:417
10167991370,84cyclictest0-21swapper/1512:23:407
10100991370,75cyclictest0-21swapper/511:41:1727
10100991370,75cyclictest0-21swapper/511:41:1627
102129913646,60cyclictest0-21swapper/2509:45:3818
102129913630,68cyclictest0-21swapper/2510:00:0418
10161991360,83cyclictest0-21swapper/1411:59:356
10161991360,83cyclictest0-21swapper/1411:59:346
100799913632,80cyclictest0-21swapper/109:31:201
100749913650,57cyclictest0-21swapper/012:05:190
100749913650,57cyclictest0-21swapper/012:05:190
100749913639,63cyclictest0-21swapper/009:33:150
10074991360,83cyclictest0-21swapper/009:35:250
101619913515,117cyclictest151rcu_preempt12:03:536
101619913515,117cyclictest151rcu_preempt12:03:526
100799913532,68cyclictest0-21swapper/109:21:431
100799913531,103cyclictest0-21swapper/109:11:011
100799913530,92cyclictest0-21swapper/110:20:151
100799913530,92cyclictest0-21swapper/110:20:151
100799913526,72cyclictest0-21swapper/110:32:481
100749913544,57cyclictest0-21swapper/010:47:330
102129913431,70cyclictest0-21swapper/2509:30:4018
102129913430,69cyclictest0-21swapper/2511:11:4118
102129913430,69cyclictest0-21swapper/2511:11:4118
102129913430,68cyclictest0-21swapper/2507:10:0618
102129913430,64cyclictest0-21swapper/2512:30:1718
102129913430,64cyclictest0-21swapper/2512:30:1618
101679913429,75cyclictest0-21swapper/1510:45:207
101619913420,66cyclictest0-21swapper/1407:45:136
10100991343,86cyclictest0-21swapper/509:10:4827
100799913429,75cyclictest0-21swapper/109:17:581
100749913447,60cyclictest0-21swapper/009:44:290
100749913445,58cyclictest0-21swapper/009:11:490
102129913357,74cyclictest0-21swapper/2509:19:2718
102129913329,70cyclictest0-21swapper/2511:57:3918
102129913329,70cyclictest0-21swapper/2511:57:3918
102129913329,69cyclictest0-21swapper/2512:05:0818
102129913329,69cyclictest0-21swapper/2512:05:0818
102129913326,70cyclictest0-21swapper/2509:36:3218
101489913317,43cyclictest0-21swapper/1209:40:554
10100991333,77cyclictest0-21swapper/509:18:0227
100749913335,62cyclictest0-21swapper/012:12:320
100749913335,62cyclictest0-21swapper/012:12:320
100749913329,66cyclictest0-21swapper/011:45:170
100749913329,66cyclictest0-21swapper/011:45:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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