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2026-03-11 - 19:11
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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 Wed Mar 11, 2026 12:49:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913480,340ptp4l0-21swapper/107:05:071
3235099202140,1cyclictest151rcu_preempt12:02:3926
3246599177176,1cyclictest151rcu_preempt10:02:5714
3246599177176,1cyclictest151rcu_preempt10:02:5714
32465991746,143cyclictest0-21swapper/2107:50:1314
32465991726,150cyclictest0-21swapper/2107:40:1614
32465991666,158cyclictest0-21swapper/2110:34:5614
32465991666,158cyclictest0-21swapper/2110:34:5614
32465991636,125cyclictest0-21swapper/2109:25:1814
32465991606,109cyclictest0-21swapper/2109:30:1914
32465991596,121cyclictest0-21swapper/2112:25:0214
32465991576,110cyclictest0-21swapper/2109:53:1914
32465991576,110cyclictest0-21swapper/2109:53:1914
324409915762,94cyclictest0-21swapper/1712:03:089
32465991546,91cyclictest0-21swapper/2112:17:0614
324869915010,111cyclictest0-21swapper/2408:50:2217
32480991480,85cyclictest0-21swapper/2309:15:2416
32465991486,112cyclictest26326-21taskset11:01:2814
324869914710,124cyclictest0-21swapper/2410:55:1617
324869914710,124cyclictest0-21swapper/2410:55:1617
32465991476,102cyclictest0-21swapper/2110:51:3514
32440991470,86cyclictest0-21swapper/1707:21:299
324869914510,93cyclictest0-21swapper/2411:11:2617
324869914510,93cyclictest0-21swapper/2411:11:2517
324869914510,124cyclictest0-21swapper/2410:53:0417
324009914419,95cyclictest0-21swapper/1208:00:124
32465991436,104cyclictest0-21swapper/2109:40:0114
324009914325,109cyclictest0-21swapper/1210:55:594
324009914325,109cyclictest0-21swapper/1210:55:594
323419914323,109cyclictest0-21swapper/312:27:2923
324009914219,45cyclictest0-21swapper/1210:26:384
324009914219,45cyclictest0-21swapper/1210:26:384
323419914218,48cyclictest0-21swapper/312:38:0923
323259914220,74cyclictest0-21swapper/011:07:510
324809914132,98cyclictest0-21swapper/2311:06:0216
32474991402,86cyclictest0-21swapper/2210:35:1815
32474991402,86cyclictest0-21swapper/2210:35:1815
32440991400,85cyclictest0-21swapper/1709:31:539
32400991400,85cyclictest0-21swapper/1210:31:274
32400991400,85cyclictest0-21swapper/1210:31:274
323419914018,95cyclictest0-21swapper/311:25:1223
325149913921,117cyclictest0-21swapper/3111:39:1925
32480991390,84cyclictest0-21swapper/2307:25:2016
324009913921,67cyclictest0-21swapper/1211:22:464
323259913947,59cyclictest0-21swapper/008:47:300
323259913947,57cyclictest0-21swapper/008:20:190
323259913929,63cyclictest0-21swapper/010:37:080
323259913929,63cyclictest0-21swapper/010:37:080
32465991386,98cyclictest0-21swapper/2110:13:0614
32465991386,98cyclictest0-21swapper/2110:13:0514
323259913846,58cyclictest0-21swapper/010:07:260
323259913846,58cyclictest0-21swapper/010:07:260
323259913845,55cyclictest0-21swapper/009:21:140
325059913733,95cyclictest0-21swapper/2911:59:3522
324009913725,63cyclictest0-21swapper/1212:16:194
323259913727,69cyclictest0-21swapper/012:37:360
323259913727,69cyclictest0-21swapper/011:57:020
323259913727,67cyclictest0-21swapper/010:48:530
323259913727,67cyclictest0-21swapper/010:48:520
323259913722,105cyclictest25159-21switchtime11:00:210
324009913649,63cyclictest0-21swapper/1209:00:234
324009913649,56cyclictest0-21swapper/1211:56:264
324009913646,60cyclictest0-21swapper/1212:00:114
323419913674,55cyclictest0-21swapper/312:17:5223
323259913629,67cyclictest0-21swapper/008:50:140
323259913628,73cyclictest0-21swapper/010:31:470
323259913628,73cyclictest0-21swapper/010:31:460
323259913628,67cyclictest0-21swapper/009:16:260
323259913628,64cyclictest0-21swapper/007:17:480
323259913628,63cyclictest0-21swapper/008:42:430
324009913552,62cyclictest0-21swapper/1210:01:324
324009913552,62cyclictest0-21swapper/1210:01:314
324009913538,65cyclictest0-21swapper/1210:45:224
324009913538,65cyclictest0-21swapper/1210:45:214
32384991350,82cyclictest0-21swapper/1010:20:132
32384991350,82cyclictest0-21swapper/1010:20:122
323419913552,61cyclictest0-21swapper/312:01:0223
323259913546,58cyclictest0-21swapper/012:13:500
323259913530,70cyclictest0-21swapper/009:34:040
323259913528,67cyclictest0-21swapper/007:50:240
323259913527,68cyclictest0-21swapper/011:34:180
323259913526,68cyclictest0-21swapper/009:09:430
323259913525,63cyclictest0-21swapper/010:00:150
323259913525,63cyclictest0-21swapper/010:00:150
325109913451,82cyclictest0-21swapper/3010:44:4724
325109913451,82cyclictest0-21swapper/3010:44:4624
324869913410,86cyclictest0-21swapper/2410:35:5617
324869913410,86cyclictest0-21swapper/2410:35:5517
324749913419,111cyclictest151rcu_preempt11:22:0415
324409913416,35cyclictest0-21swapper/1710:39:139
324409913416,35cyclictest0-21swapper/1710:39:139
324009913456,58cyclictest0-21swapper/1211:40:384
324009913444,60cyclictest0-21swapper/1210:11:554
324009913444,60cyclictest0-21swapper/1210:11:544
324009913443,61cyclictest0-21swapper/1210:37:214
324009913443,61cyclictest0-21swapper/1210:37:204
324009913441,71cyclictest0-21swapper/1210:07:244
324009913441,71cyclictest0-21swapper/1210:07:234
323369913450,24cyclictest0-21swapper/209:50:5212
323369913450,24cyclictest0-21swapper/209:50:5212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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