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2025-12-13 - 18:43
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rack4slot4.osadl.org (updated Sat Dec 13, 2025 12:53:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71700rcu_preempt0-21swapper/311:06:253
71700rcu_preempt0-21swapper/311:06:253
71660rcu_preempt0-21swapper/312:12:553
71600rcu_preempt0-21swapper/311:11:493
71600rcu_preempt0-21swapper/311:11:493
71600rcu_preempt0-21swapper/112:41:521
71600rcu_preempt0-21swapper/112:41:521
71550rcu_preempt0-21swapper/210:15:342
71550rcu_preempt0-21swapper/210:15:342
71520rcu_preempt0-21swapper/010:00:530
100650520irq/38-i2c-mpc5922-21copy12:45:072
100650520irq/38-i2c-mpc5922-21copy12:45:072
71510rcu_preempt0-21swapper/311:36:333
71510rcu_preempt0-21swapper/311:36:333
71490rcu_preempt0-21swapper/209:52:392
71480rcu_preempt0-21swapper/209:42:572
46050480irq/122-QManpo1958-2110:48:540
46050480irq/122-QManpo1958-2110:48:540
71460rcu_preempt0-21swapper/111:32:091
71460rcu_preempt0-21swapper/010:52:350
71460rcu_preempt0-21swapper/010:52:350
46050460irq/122-QManpo1958-2110:48:540
46050460irq/122-QManpo1958-2110:48:540
71450rcu_preempt0-21swapper/109:19:501
71450rcu_preempt0-21swapper/109:19:501
71420rcu_preempt0-21swapper/112:38:151
71420rcu_preempt0-21swapper/112:38:151
71400rcu_preempt9998-21ssh11:00:150
71400rcu_preempt9998-21ssh11:00:150
71400rcu_preempt4655-1kworker/2:0H08:48:212
71400rcu_preempt4655-1kworker/2:0H08:48:212
71400rcu_preempt0-21swapper/009:17:190
71400rcu_preempt0-21swapper/009:17:190
71390rcu_preempt23120-21sh12:18:250
71390rcu_preempt23120-21sh12:18:250
71390rcu_preempt0-21swapper/311:46:183
71390rcu_preempt0-21swapper/110:56:061
71390rcu_preempt0-21swapper/110:56:061
71390rcu_preempt0-21swapper/109:29:281
71390rcu_preempt0-21swapper/109:29:281
71390rcu_preempt0-21swapper/011:41:570
71390rcu_preempt0-21swapper/011:41:570
71380rcu_preempt3972-21ls10:50:043
71380rcu_preempt30811-21taskset08:25:180
71380rcu_preempt0-21swapper/109:32:391
71380rcu_preempt0-21swapper/109:32:391
71380rcu_preempt0-21swapper/010:23:250
71380rcu_preempt0-21swapper/010:23:250
46050380irq/122-QManpo9665-2110:48:540
46050380irq/122-QManpo9665-2110:48:540
46050380irq/122-QManpo0-210
1599380migration/026018-21/usr/sbin/munin09:35:310
1599380migration/026018-21/usr/sbin/munin09:35:310
100650380irq/38-i2c-mpc0-21swapper/011:29:500
100650380irq/38-i2c-mpc0-21swapper/011:29:500
71370rcu_preempt21695-21/usr/sbin/munin07:50:290
71370rcu_preempt21695-21/usr/sbin/munin07:50:290
71370rcu_preempt15337-21ssh11:09:420
71370rcu_preempt15337-21ssh11:09:420
71370rcu_preempt0-21swapper/309:11:243
71370rcu_preempt0-21swapper/309:11:243
71370rcu_preempt0-21swapper/111:29:481
71370rcu_preempt0-21swapper/111:29:481
71370rcu_preempt0-21swapper/110:15:051
71370rcu_preempt0-21swapper/109:44:371
71370rcu_preempt0-21swapper/012:31:430
71370rcu_preempt0-21swapper/012:31:430
71370rcu_preempt0-21swapper/012:24:020
71370rcu_preempt0-21swapper/012:24:020
71370rcu_preempt0-21swapper/011:24:130
71370rcu_preempt0-21swapper/011:24:130
71370rcu_preempt0-21swapper/010:56:270
71370rcu_preempt0-21swapper/010:56:270
71370rcu_preempt0-21swapper/009:52:300
46050370irq/122-QManpo22408-2110:48:540
46050370irq/122-QManpo22408-2110:48:540
46050370irq/122-QManpo18583-2110:48:540
46050370irq/122-QManpo0-210
46050370irq/122-QManpo0-210
100650370irq/38-i2c-mpc0-21swapper/008:34:110
100650370irq/38-i2c-mpc0-21swapper/008:34:110
71360rcu_preempt31880-21cat08:30:031
71360rcu_preempt23540-21ssh12:19:312
71360rcu_preempt23540-21ssh12:19:312
71360rcu_preempt19514-21kworker/2:211:15:062
71360rcu_preempt19514-21kworker/2:211:15:062
71360rcu_preempt15761-21ntpdc12:05:252
71360rcu_preempt0-21swapper/312:32:173
71360rcu_preempt0-21swapper/312:32:173
71360rcu_preempt0-21swapper/310:58:473
71360rcu_preempt0-21swapper/310:58:473
71360rcu_preempt0-21swapper/307:55:033
71360rcu_preempt0-21swapper/307:55:033
71360rcu_preempt0-21swapper/209:35:462
71360rcu_preempt0-21swapper/209:35:462
71360rcu_preempt0-21swapper/112:12:371
71360rcu_preempt0-21swapper/111:15:101
71360rcu_preempt0-21swapper/111:15:101
71360rcu_preempt0-21swapper/110:23:421
71360rcu_preempt0-21swapper/110:23:421
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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