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2026-06-20 - 15:56
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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 Sat Jun 20, 2026 12:49:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
330891288279,7phc2sys0-21swapper/207:05:2112
7489927677,3cyclictest151rcu_preempt11:52:5715
3273912580,250ptp4l0-21swapper/107:06:571
8119916159,66cyclictest0-21swapper/2511:38:3518
8039915923,103cyclictest0-21swapper/2410:25:2517
8039915453,99cyclictest0-21swapper/2409:56:5317
622991523,142cyclictest0-21swapper/409:45:2326
622991513,111cyclictest0-21swapper/411:25:1326
622991503,127cyclictest0-21swapper/409:37:1726
6389914720,107cyclictest0-21swapper/711:37:4529
622991443,96cyclictest0-21swapper/408:20:1626
622991443,96cyclictest0-21swapper/408:20:1526
638991420,84cyclictest0-21swapper/707:15:2129
622991413,101cyclictest0-21swapper/409:50:1326
622991403,102cyclictest0-21swapper/407:25:1526
8039913917,119cyclictest151rcu_preempt10:01:2117
803991390,84cyclictest0-21swapper/2412:30:4917
6389913753,55cyclictest0-21swapper/710:43:1429
8119913649,59cyclictest0-21swapper/2507:35:2518
8119913539,52cyclictest0-21swapper/2508:33:3118
8119913539,52cyclictest0-21swapper/2508:33:3118
8119913528,64cyclictest0-21swapper/2509:40:2718
6389913553,57cyclictest0-21swapper/709:28:2429
8119913455,61cyclictest0-21swapper/2507:12:2718
6389913456,61cyclictest0-21swapper/708:54:2629
6389913456,61cyclictest0-21swapper/708:54:2529
8119913355,65cyclictest0-21swapper/2510:08:4718
8119913349,58cyclictest0-21swapper/2512:14:2418
8119913331,69cyclictest0-21swapper/2507:17:4718
8119913329,68cyclictest0-21swapper/2507:53:3518
8119913329,68cyclictest0-21swapper/2507:53:3518
8119913248,59cyclictest0-21swapper/2512:22:2418
8119913241,58cyclictest0-21swapper/2510:59:0218
8119913230,68cyclictest0-21swapper/2507:44:2918
8119913228,69cyclictest0-21swapper/2509:31:5418
697991320,85cyclictest0-21swapper/1411:45:216
6389913230,71cyclictest0-21swapper/711:07:1729
6389913226,65cyclictest0-21swapper/708:39:3229
6389913226,65cyclictest0-21swapper/708:39:3229
622991323,78cyclictest0-21swapper/409:22:1726
8119913151,64cyclictest0-21swapper/2510:40:2018
8119913145,56cyclictest0-21swapper/2511:47:0718
8119913137,60cyclictest0-21swapper/2512:32:3418
8119913129,67cyclictest0-21swapper/2507:26:3818
8119913129,63cyclictest0-21swapper/2511:05:5918
8119913127,72cyclictest0-21swapper/2508:42:4418
8119913127,72cyclictest0-21swapper/2508:42:4418
8119913126,64cyclictest0-21swapper/2509:46:5318
6389913148,55cyclictest0-21swapper/712:05:3229
6389913129,70cyclictest0-21swapper/711:59:0829
6389913128,68cyclictest0-21swapper/711:12:1529
8119913044,61cyclictest0-21swapper/2508:24:0318
8119913044,61cyclictest0-21swapper/2508:24:0218
8119913029,69cyclictest0-21swapper/2511:17:4418
6389913054,58cyclictest0-21swapper/709:42:4929
6389913050,63cyclictest0-21swapper/712:32:4829
6389913027,71cyclictest0-21swapper/711:50:1929
6389913025,61cyclictest0-21swapper/709:17:0829
8119912928,59cyclictest0-21swapper/2508:36:5218
8119912928,59cyclictest0-21swapper/2508:36:5218
8119912927,66cyclictest0-21swapper/2508:00:3218
8119912927,66cyclictest0-21swapper/2508:00:3118
8119912925,59cyclictest0-21swapper/2507:46:3918
6389912927,66cyclictest0-21swapper/712:05:0029
6389912925,63cyclictest0-21swapper/710:05:1729
8119912827,65cyclictest0-21swapper/2512:37:2618
6389912829,65cyclictest0-21swapper/711:48:2629
6389912828,71cyclictest0-21swapper/710:35:4229
6389912828,65cyclictest0-21swapper/709:12:5329
6389912827,68cyclictest0-21swapper/708:55:1629
6389912827,68cyclictest0-21swapper/708:55:1629
6389912823,62cyclictest0-21swapper/711:21:1129
8119912729,72cyclictest0-21swapper/2511:31:0618
8119912728,63cyclictest0-21swapper/2509:35:0718
8119912727,65cyclictest0-21swapper/2509:20:5818
8119912727,64cyclictest0-21swapper/2510:20:2018
8119912726,66cyclictest0-21swapper/2507:55:4418
8119912726,66cyclictest0-21swapper/2507:55:4318
8039912730,66cyclictest0-21swapper/2412:06:5617
6389912733,79cyclictest0-21swapper/710:47:3929
6389912729,71cyclictest0-21swapper/708:17:2029
6389912729,71cyclictest0-21swapper/708:17:2029
6389912729,71cyclictest0-21swapper/707:50:2229
6389912729,71cyclictest0-21swapper/707:50:2229
6389912729,67cyclictest0-21swapper/710:32:0029
8119912659,66cyclictest0-21swapper/2508:55:0218
8119912659,66cyclictest0-21swapper/2508:55:0218
8119912629,59cyclictest0-21swapper/2507:32:4418
8119912627,64cyclictest0-21swapper/2511:50:2118
6389912627,65cyclictest0-21swapper/710:20:3129
6389912625,61cyclictest0-21swapper/710:26:4029
8119912431,76cyclictest0-21swapper/2509:27:3818
8119912430,71cyclictest0-21swapper/2509:09:2818
8119912428,74cyclictest0-21swapper/2510:34:2718
803991240,81cyclictest0-21swapper/2407:20:3717
6389912430,73cyclictest0-21swapper/710:11:1029
6389912429,65cyclictest0-21swapper/712:16:4529
6389912424,61cyclictest0-21swapper/709:58:5129
8119912331,77cyclictest0-21swapper/2510:26:2518
8119912328,73cyclictest0-21swapper/2508:10:0918
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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