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2025-11-27 - 16:56
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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 Thu Nov 27, 2025 12:50:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
948299363167,133cyclictest151rcu_preempt10:20:191
2482913210,313ptp4l0-21swapper/107:05:401
95359921990,33cyclictest151rcu_preempt11:57:2630
95359921990,33cyclictest151rcu_preempt11:57:2630
9593991691,158cyclictest0-21swapper/2010:05:4813
95939916520,122cyclictest151rcu_preempt11:23:3313
95939916520,122cyclictest151rcu_preempt11:23:3213
9593991646,149cyclictest151rcu_preempt09:32:5313
95939916446,77cyclictest151rcu_preempt11:35:1313
95939916446,77cyclictest151rcu_preempt11:35:1313
95939916221,113cyclictest151rcu_preempt09:55:4813
95939916217,108cyclictest151rcu_preempt11:08:2913
94829916228,97cyclictest0-21swapper/110:06:551
95939915815,113cyclictest151rcu_preempt09:53:4813
94829915729,96cyclictest0-21swapper/109:00:541
95939915616,116cyclictest151rcu_preempt11:28:4813
95939915616,116cyclictest151rcu_preempt11:28:4813
95939915523,116cyclictest151rcu_preempt11:11:4813
95939915523,116cyclictest151rcu_preempt11:11:4813
95939915412,120cyclictest151rcu_preempt09:35:4013
95939915120,122cyclictest151rcu_preempt10:12:2713
9482991461,83cyclictest0-21swapper/108:45:411
95619914553,57cyclictest0-21swapper/1211:28:404
95619914553,57cyclictest0-21swapper/1211:28:404
9482991450,86cyclictest0-21swapper/107:25:331
9482991450,86cyclictest0-21swapper/107:25:331
96599914455,78cyclictest0-21swapper/3109:58:5225
95619914425,118cyclictest0-21swapper/1210:30:324
9593991433,102cyclictest151rcu_preempt07:56:1613
9593991433,102cyclictest151rcu_preempt07:56:1513
9561991430,83cyclictest0-21swapper/1210:50:124
95229914320,93cyclictest16524-21irqrtprio08:30:1728
96149914160,79cyclictest0-21swapper/2511:30:1618
96149914160,79cyclictest0-21swapper/2511:30:1618
95909914132,52cyclictest0-21swapper/1911:40:1211
95909914132,52cyclictest0-21swapper/1911:40:1211
95619914146,67cyclictest0-21swapper/1211:15:174
9561991411,84cyclictest0-21swapper/1209:41:474
96149914031,67cyclictest0-21swapper/2510:12:5618
95619914053,61cyclictest0-21swapper/1212:23:274
95619914053,61cyclictest0-21swapper/1212:23:274
9561991400,83cyclictest0-21swapper/1210:45:054
96149913948,66cyclictest0-21swapper/2509:36:1918
96149913932,67cyclictest0-21swapper/2511:38:4218
96149913932,67cyclictest0-21swapper/2511:38:4218
96149913931,69cyclictest0-21swapper/2512:36:2518
96149913931,68cyclictest0-21swapper/2512:07:3418
96149913931,68cyclictest0-21swapper/2512:07:3418
96149913931,68cyclictest0-21swapper/2507:30:1318
96149913931,68cyclictest0-21swapper/2507:30:1318
96149913930,68cyclictest0-21swapper/2512:12:4118
96149913930,68cyclictest0-21swapper/2512:12:4118
96149913930,68cyclictest0-21swapper/2511:47:1518
96149913930,68cyclictest0-21swapper/2511:47:1518
96149913929,65cyclictest0-21swapper/2511:20:3218
96149913929,65cyclictest0-21swapper/2511:20:3218
96149913929,65cyclictest0-21swapper/2510:43:3918
96149913928,65cyclictest0-21swapper/2510:55:2518
95909913929,86cyclictest0-21swapper/1909:28:4311
95619913942,68cyclictest0-21swapper/1212:10:194
95619913942,68cyclictest0-21swapper/1212:10:194
95619913925,69cyclictest0-21swapper/1207:45:184
95619913925,69cyclictest0-21swapper/1207:45:184
96149913831,67cyclictest0-21swapper/2508:53:3418
96149913830,66cyclictest0-21swapper/2511:51:0018
96149913830,66cyclictest0-21swapper/2511:50:5918
95619913847,61cyclictest0-21swapper/1211:55:254
95619913847,61cyclictest0-21swapper/1211:55:254
9561991380,82cyclictest0-21swapper/1207:55:014
9561991380,82cyclictest0-21swapper/1207:55:014
96149913730,67cyclictest0-21swapper/2511:26:5718
96149913730,67cyclictest0-21swapper/2511:26:5718
96149913730,66cyclictest0-21swapper/2511:41:2218
96149913730,66cyclictest0-21swapper/2511:41:2218
96149913729,65cyclictest0-21swapper/2508:55:4218
96149913729,64cyclictest0-21swapper/2512:28:5618
96149913729,64cyclictest0-21swapper/2512:28:5618
96149913728,70cyclictest0-21swapper/2512:34:4918
96149913728,70cyclictest0-21swapper/2512:34:4918
9614991370,81cyclictest0-21swapper/2512:20:2318
9614991370,81cyclictest0-21swapper/2512:20:2318
95909913728,66cyclictest0-21swapper/1907:10:2111
95909913728,66cyclictest0-21swapper/1907:10:2111
95909913719,116cyclictest151rcu_preempt10:51:0011
95779913727,87cyclictest0-21swapper/1610:05:548
95619913736,68cyclictest0-21swapper/1209:22:324
95619913729,67cyclictest0-21swapper/1208:15:134
96149913631,67cyclictest0-21swapper/2509:15:2918
96149913629,64cyclictest0-21swapper/2510:29:1418
96149913628,64cyclictest0-21swapper/2510:54:2118
96149913627,65cyclictest0-21swapper/2511:02:5418
95619913646,55cyclictest0-21swapper/1210:20:154
95619913645,58cyclictest0-21swapper/1211:54:034
95619913645,58cyclictest0-21swapper/1211:54:034
95619913630,70cyclictest0-21swapper/1212:08:594
95619913630,70cyclictest0-21swapper/1212:08:594
95619913630,69cyclictest0-21swapper/1209:15:504
9561991360,83cyclictest0-21swapper/1209:05:004
9561991360,81cyclictest0-21swapper/1209:10:154
94829913628,49cyclictest0-21swapper/109:40:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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