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2026-09-06 - 19:56
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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 Sun Sep 06, 2026 12:48:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
330891219211,6phc2sys0-21swapper/207:08:0112
66769917916,118cyclictest0-21swapper/210:55:1912
66769917216,109cyclictest0-21swapper/211:18:1812
670599168165,1cyclictest151rcu_preempt09:20:1428
670599168165,1cyclictest151rcu_preempt09:20:1428
66769916516,114cyclictest0-21swapper/210:03:4612
68939916257,104cyclictest0-21swapper/3010:26:5424
67059916217,129cyclictest0-21swapper/609:41:4828
67059916217,129cyclictest0-21swapper/609:41:4728
67059916116,145cyclictest0-21swapper/609:50:1028
66769916116,90cyclictest0-21swapper/211:40:4412
3273911600,152ptp4l0-21swapper/107:06:431
67059915417,84cyclictest0-21swapper/612:35:2428
67809914817,94cyclictest0-21swapper/1609:33:028
68849914522,98cyclictest0-21swapper/2907:57:1622
67809914517,100cyclictest0-21swapper/1611:45:018
66769914516,80cyclictest0-21swapper/210:30:5712
6780991440,82cyclictest0-21swapper/1607:36:008
68989914329,99cyclictest0-21swapper/3111:34:1725
67809914317,89cyclictest0-21swapper/1610:45:128
67449914353,54cyclictest0-21swapper/1109:45:583
67059914315,125cyclictest52-21ksoftirqd/612:00:0328
66769914312,112cyclictest0-21swapper/208:35:1712
66769914312,112cyclictest0-21swapper/208:35:1612
68939914217,119cyclictest0-21swapper/3007:36:5824
52412142134,6sleep140-21swapper/1407:06:316
68849914142,60cyclictest0-21swapper/2910:43:2922
68989914026,48cyclictest0-21swapper/3111:48:4225
68849913926,112cyclictest0-21swapper/2911:49:4422
66769913947,64cyclictest0-21swapper/209:13:4612
66769913947,64cyclictest0-21swapper/209:13:4512
68989913824,101cyclictest0-21swapper/3109:28:0725
68989913824,101cyclictest0-21swapper/3109:28:0725
6884991380,83cyclictest0-21swapper/2911:19:4822
68529913844,60cyclictest0-21swapper/2512:18:4818
6852991380,83cyclictest0-21swapper/2510:16:0818
67809913815,92cyclictest0-21swapper/1609:13:208
67809913815,92cyclictest0-21swapper/1609:13:208
6676991380,86cyclictest0-21swapper/210:15:2712
68989913723,110cyclictest0-21swapper/3112:18:0625
68849913727,65cyclictest0-21swapper/2907:43:2122
68849913726,65cyclictest0-21swapper/2911:06:5422
68849913726,64cyclictest0-21swapper/2909:55:5422
68849913726,64cyclictest0-21swapper/2909:55:5322
68529913745,58cyclictest0-21swapper/2509:20:0418
68529913745,58cyclictest0-21swapper/2509:20:0418
68529913718,83cyclictest16197-21taskset09:43:1718
68529913718,83cyclictest16197-21taskset09:43:1618
67449913729,63cyclictest0-21swapper/1110:39:253
68529913650,62cyclictest0-21swapper/2509:49:5818
68529913649,66cyclictest0-21swapper/2511:24:0218
68529913647,55cyclictest0-21swapper/2507:55:3618
68529913641,56cyclictest0-21swapper/2507:21:0818
68529913626,68cyclictest0-21swapper/2509:25:2118
68529913626,68cyclictest0-21swapper/2509:25:2118
66769913629,106cyclictest0-21swapper/210:50:4512
68939913530,50cyclictest0-21swapper/3012:05:1524
68849913527,62cyclictest0-21swapper/2909:05:0822
68849913527,62cyclictest0-21swapper/2909:05:0822
68529913549,61cyclictest0-21swapper/2509:36:3618
68529913549,61cyclictest0-21swapper/2509:36:3518
68529913548,57cyclictest0-21swapper/2510:14:3318
68529913543,62cyclictest0-21swapper/2511:27:4518
68529913529,64cyclictest0-21swapper/2510:51:5818
68529913526,66cyclictest0-21swapper/2508:41:3318
68529913526,66cyclictest0-21swapper/2508:41:3318
68529913526,66cyclictest0-21swapper/2508:30:0318
67449913529,62cyclictest0-21swapper/1110:15:233
66769913548,56cyclictest0-21swapper/210:08:0312
66769913517,96cyclictest0-21swapper/209:17:4312
68849913452,66cyclictest0-21swapper/2912:22:2822
68849913430,70cyclictest0-21swapper/2908:37:5322
68849913430,70cyclictest0-21swapper/2908:37:5222
68849913429,71cyclictest0-21swapper/2907:45:1722
68849913428,72cyclictest0-21swapper/2908:02:0522
68849913427,68cyclictest0-21swapper/2908:45:2222
68849913427,68cyclictest0-21swapper/2908:45:2122
68849913427,66cyclictest0-21swapper/2907:11:5022
68529913429,65cyclictest0-21swapper/2510:01:1018
67809913417,88cyclictest0-21swapper/1607:55:188
67449913432,63cyclictest0-21swapper/1109:10:233
67449913432,63cyclictest0-21swapper/1109:10:233
66769913449,61cyclictest0-21swapper/210:11:2412
66769913430,69cyclictest0-21swapper/208:09:2012
68849913352,63cyclictest0-21swapper/2910:06:5422
68849913349,54cyclictest0-21swapper/2909:00:1922
68849913349,54cyclictest0-21swapper/2909:00:1822
68849913331,73cyclictest0-21swapper/2909:35:0422
68849913331,73cyclictest0-21swapper/2909:35:0322
68849913331,71cyclictest0-21swapper/2912:05:2622
68849913331,71cyclictest0-21swapper/2908:40:3322
68849913331,71cyclictest0-21swapper/2908:40:3222
68849913331,71cyclictest0-21swapper/2908:34:4022
68849913330,72cyclictest0-21swapper/2910:28:3022
68849913329,74cyclictest0-21swapper/2907:15:2522
68849913329,72cyclictest0-21swapper/2908:54:2722
68849913329,72cyclictest0-21swapper/2908:54:2622
68849913329,70cyclictest0-21swapper/2911:20:5222
68849913329,70cyclictest0-21swapper/2910:20:2922
68849913328,69cyclictest0-21swapper/2908:25:3522
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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