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2025-11-22 - 10:22
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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 Nov 22, 2025 00:54:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71500rcu_preempt29655-1kworker/0:0H20:22:440
71500rcu_preempt29655-1kworker/0:0H20:22:440
71500rcu_preempt29655-1kworker/0:0H20:22:440
71500rcu_preempt0-21swapper/119:52:391
71480rcu_preempt0-21swapper/022:51:180
71480rcu_preempt0-21swapper/022:51:180
71450rcu_preempt0-21swapper/223:31:162
71450rcu_preempt0-21swapper/223:31:162
71440rcu_preempt22665-21copy23:22:452
71440rcu_preempt22665-21copy23:22:452
46050420irq/122-QManpo15027-2109:24:360
46050420irq/122-QManpo15027-2109:24:360
46050400irq/122-QManpo30827-2109:24:360
46050400irq/122-QManpo30827-2109:24:360
71390rcu_preempt0-21swapper/323:18:063
71390rcu_preempt0-21swapper/323:18:063
71390rcu_preempt0-21swapper/323:18:063
319622390sleep025108-1kworker/0:0H21:42:270
319622390sleep025108-1kworker/0:0H21:42:270
100550390irq/38-i2c-mpc0-21swapper/220:52:232
100550390irq/38-i2c-mpc0-21swapper/220:52:232
71380rcu_preempt0-21swapper/200:08:122
71380rcu_preempt0-21swapper/200:08:122
71380rcu_preempt0-21swapper/023:37:560
71380rcu_preempt0-21swapper/023:37:560
71380rcu_preempt0-21swapper/023:36:320
71380rcu_preempt0-21swapper/023:36:320
46050380irq/122-QManpo2030-2109:24:360
46050380irq/122-QManpo2030-2109:24:360
46050380irq/122-QManpo2030-2109:24:360
231352380sleep022935-1kworker/0:1H22:23:230
231352380sleep022935-1kworker/0:1H22:23:230
71370rcu_preempt0-21swapper/323:25:573
71370rcu_preempt0-21swapper/323:25:573
71370rcu_preempt0-21swapper/320:27:433
71370rcu_preempt0-21swapper/320:27:433
71370rcu_preempt0-21swapper/222:01:022
71370rcu_preempt0-21swapper/222:01:022
46050370irq/122-QManpo5653-2109:24:360
46050370irq/122-QManpo5653-2109:24:360
46050370irq/122-QManpo4703-2109:24:360
46050370irq/122-QManpo4703-2109:24:360
46050370irq/122-QManpo12887-2109:24:360
46050370irq/122-QManpo12887-2109:24:360
274872370sleep025568-1kworker/0:0H23:30:480
274872370sleep025568-1kworker/0:0H23:30:480
23582370sleep027209-1kworker/0:2H00:42:560
23582370sleep027209-1kworker/0:2H00:42:560
1599370migration/023602-21timerandwakeup23:23:050
1599370migration/023602-21timerandwakeup23:23:050
107482370sleep04059-1kworker/0:1H23:00:070
107482370sleep04059-1kworker/0:1H23:00:070
97972360sleep025108-1kworker/0:0H21:59:510
97972360sleep025108-1kworker/0:0H21:59:510
71360rcu_preempt7484-21ssh23:53:003
71360rcu_preempt7484-21ssh23:53:003
71360rcu_preempt5212-21chrt23:48:062
71360rcu_preempt5212-21chrt23:48:062
71360rcu_preempt32387-21apt-get19:52:563
71360rcu_preempt32387-21apt-get19:52:563
71360rcu_preempt29341-21ssh21:37:403
71360rcu_preempt29341-21ssh21:37:403
71360rcu_preempt28665-1kworker/2:0H22:51:162
71360rcu_preempt28665-1kworker/2:0H22:51:162
71360rcu_preempt0-21swapper/323:29:553
71360rcu_preempt0-21swapper/323:29:553
71360rcu_preempt0-21swapper/322:38:023
71360rcu_preempt0-21swapper/322:38:023
71360rcu_preempt0-21swapper/322:05:203
71360rcu_preempt0-21swapper/322:05:203
71360rcu_preempt0-21swapper/322:05:203
71360rcu_preempt0-21swapper/300:03:363
71360rcu_preempt0-21swapper/300:03:363
71360rcu_preempt0-21swapper/223:45:162
71360rcu_preempt0-21swapper/223:45:162
71360rcu_preempt0-21swapper/223:45:162
71360rcu_preempt0-21swapper/223:13:062
71360rcu_preempt0-21swapper/223:13:062
71360rcu_preempt0-21swapper/223:13:062
71360rcu_preempt0-21swapper/222:25:272
71360rcu_preempt0-21swapper/222:25:272
71360rcu_preempt0-21swapper/221:47:412
71360rcu_preempt0-21swapper/221:13:022
71360rcu_preempt0-21swapper/221:13:022
71360rcu_preempt0-21swapper/123:03:051
71360rcu_preempt0-21swapper/123:03:051
71360rcu_preempt0-21swapper/001:08:270
71360rcu_preempt0-21swapper/001:08:270
71360rcu_preempt0-21swapper/001:08:270
46050360irq/122-QManpo8037-10
46050360irq/122-QManpo8037-10
46050360irq/122-QManpo7524-2109:24:360
46050360irq/122-QManpo7524-2109:24:360
46050360irq/122-QManpo7524-2109:24:360
46050360irq/122-QManpo597-2109:24:360
46050360irq/122-QManpo597-2109:24:360
46050360irq/122-QManpo28928-2109:24:360
46050360irq/122-QManpo28928-2109:24:360
46050360irq/122-QManpo28928-2109:24:360
46050360irq/122-QManpo18045-210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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