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2026-01-10 - 02:07
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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 Jan 10, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71720rcu_preempt0-21swapper/000:07:270
71720rcu_preempt0-21swapper/000:07:270
71500rcu_preempt0-21swapper/322:41:053
71500rcu_preempt0-21swapper/322:41:053
71440rcu_preempt3920-21apt-get19:25:540
71440rcu_preempt3920-21apt-get19:25:540
71440rcu_preempt20812-21kworker/3:023:00:333
71440rcu_preempt20812-21kworker/3:023:00:333
71440rcu_preempt20812-21kworker/3:023:00:333
46050440irq/122-QManpo0-210
46050440irq/122-QManpo0-210
71430rcu_preempt10416-21processes00:16:022
71430rcu_preempt10416-21processes00:16:022
71420rcu_preempt9625-21kworker/1:022:21:591
71420rcu_preempt9625-21kworker/1:022:21:591
71410rcu_preempt28540-21kthreadd23:51:020
71410rcu_preempt28540-21kthreadd23:51:020
71410rcu_preempt0-21swapper/023:35:160
71410rcu_preempt0-21swapper/023:35:160
46050410irq/122-QManpo0-210
46050410irq/122-QManpo0-210
46050410irq/122-QManpo0-210
241410ksoftirqd/23283-1kworker/2:2H19:25:432
241410ksoftirqd/23283-1kworker/2:2H19:25:432
71400rcu_preempt0-21swapper/022:36:560
71400rcu_preempt0-21swapper/022:36:560
71400rcu_preempt0-21swapper/022:36:560
2299400migration/231882-21taskset19:07:382
2299400migration/231882-21taskset19:07:382
71390rcu_preempt0-21swapper/122:28:591
71390rcu_preempt0-21swapper/122:28:591
71390rcu_preempt0-21swapper/122:28:591
71390rcu_preempt0-21swapper/022:35:340
71390rcu_preempt0-21swapper/022:35:340
71390rcu_preempt0-21swapper/020:08:500
71390rcu_preempt0-21swapper/020:08:500
71390rcu_preempt0-21swapper/000:33:090
71390rcu_preempt0-21swapper/000:33:090
71380rcu_preempt0-21swapper/222:49:242
71380rcu_preempt0-21swapper/222:49:242
71380rcu_preempt0-21swapper/222:49:242
71380rcu_preempt0-21swapper/200:04:452
71380rcu_preempt0-21swapper/200:04:452
71380rcu_preempt0-21swapper/122:42:501
71380rcu_preempt0-21swapper/122:42:501
71380rcu_preempt0-21swapper/122:11:111
71380rcu_preempt0-21swapper/122:11:111
71380rcu_preempt0-21swapper/023:55:430
71380rcu_preempt0-21swapper/023:55:430
71380rcu_preempt0-21swapper/023:48:190
71380rcu_preempt0-21swapper/023:48:190
71380rcu_preempt0-21swapper/023:48:190
71380rcu_preempt0-21swapper/023:03:560
71380rcu_preempt0-21swapper/023:03:560
71380rcu_preempt0-21swapper/022:46:100
71380rcu_preempt0-21swapper/022:46:100
71380rcu_preempt0-21swapper/022:46:100
71380rcu_preempt0-21swapper/022:00:530
71380rcu_preempt0-21swapper/022:00:530
71380rcu_preempt0-21swapper/000:17:110
71380rcu_preempt0-21swapper/000:17:110
46050380irq/122-QManpo21942-2110:48:550
46050380irq/122-QManpo21942-2110:48:550
71370rcu_preempt969-21sendmail00:00:342
71370rcu_preempt969-21sendmail00:00:342
71370rcu_preempt32114-21crond19:10:321
71370rcu_preempt32114-21crond19:10:321
71370rcu_preempt25418-21grep20:40:580
71370rcu_preempt25418-21grep20:40:580
71370rcu_preempt22687-21sh22:45:272
71370rcu_preempt22687-21sh22:45:272
71370rcu_preempt0-21swapper/121:50:471
71370rcu_preempt0-21swapper/121:50:471
71370rcu_preempt0-21swapper/121:46:001
71370rcu_preempt0-21swapper/121:46:001
71370rcu_preempt0-21swapper/121:25:431
71370rcu_preempt0-21swapper/121:25:431
71370rcu_preempt0-21swapper/121:25:431
71370rcu_preempt0-21swapper/100:04:441
71370rcu_preempt0-21swapper/100:04:441
71370rcu_preempt0-21swapper/023:22:160
71370rcu_preempt0-21swapper/023:22:160
71370rcu_preempt0-21swapper/022:42:120
71370rcu_preempt0-21swapper/022:42:120
71370rcu_preempt0-21swapper/022:20:320
71370rcu_preempt0-21swapper/022:20:320
71370rcu_preempt0-21swapper/021:41:020
71370rcu_preempt0-21swapper/021:41:020
71370rcu_preempt0-21swapper/021:30:450
71370rcu_preempt0-21swapper/021:30:450
71370rcu_preempt0-21swapper/021:25:530
71370rcu_preempt0-21swapper/021:25:530
71370rcu_preempt0-21swapper/021:25:530
71370rcu_preempt0-21swapper/021:13:240
71370rcu_preempt0-21swapper/021:13:240
71370rcu_preempt0-21swapper/021:10:340
71370rcu_preempt0-21swapper/021:10:340
46250370irq/120-QManpo0-2110:48:551
46250370irq/120-QManpo0-2110:48:551
46250370irq/120-QManpo0-2110:48:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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