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2026-04-03 - 08:18
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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 50 highest latencies:
System rack4slot4.osadl.org (updated Fri Apr 03, 2026 00:44:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71600rcu_preempt0-21swapper/122:46:431
71600rcu_preempt0-21swapper/122:46:431
71600rcu_preempt0-21swapper/122:46:431
71600rcu_preempt0-21swapper/022:47:170
71600rcu_preempt0-21swapper/022:47:170
1599470migration/017443-21taskset19:08:140
1599470migration/017443-21taskset19:08:140
1599470migration/017443-21taskset19:08:140
100650440irq/38-i2c-mpc181ksoftirqd/123:05:021
100650440irq/38-i2c-mpc181ksoftirqd/123:05:021
100650440irq/38-i2c-mpc181ksoftirqd/123:05:021
71430rcu_preempt0-21swapper/122:48:021
71430rcu_preempt0-21swapper/122:48:021
71420rcu_preempt0-21swapper/219:10:402
71420rcu_preempt0-21swapper/219:10:402
71420rcu_preempt0-21swapper/219:10:402
71420rcu_preempt0-21swapper/022:25:200
71420rcu_preempt0-21swapper/022:25:200
71420rcu_preempt0-21swapper/022:25:200
71410rcu_preempt29012-21kworker/0:323:05:470
71410rcu_preempt29012-21kworker/0:323:05:470
71410rcu_preempt29012-21kworker/0:323:05:470
71410rcu_preempt12182-21memory21:57:301
71410rcu_preempt12182-21memory21:57:301
71410rcu_preempt12182-21memory21:57:301
71410rcu_preempt0-21swapper/200:03:122
71410rcu_preempt0-21swapper/200:03:122
71410rcu_preempt0-21swapper/200:03:122
46050400irq/122-QManpo18892-2110:48:550
46050400irq/122-QManpo18892-2110:48:550
71390rcu_preempt9841-21copy22:52:190
71390rcu_preempt9841-21copy22:52:190
71390rcu_preempt9841-21copy22:52:190
71390rcu_preempt25642-21sendmail-msp22:27:042
71390rcu_preempt25642-21sendmail-msp22:27:042
71390rcu_preempt25642-21sendmail-msp22:27:042
71390rcu_preempt20146-1kworker/2:1H21:25:322
71390rcu_preempt20146-1kworker/2:1H21:25:322
71390rcu_preempt20146-1kworker/2:1H21:25:322
71390rcu_preempt0-21swapper/100:02:231
71390rcu_preempt0-21swapper/100:02:231
71390rcu_preempt0-21swapper/100:02:231
71390rcu_preempt0-21swapper/022:07:110
71390rcu_preempt0-21swapper/022:07:110
71390rcu_preempt0-21swapper/022:07:110
71380rcu_preempt26798-21sh21:26:010
71380rcu_preempt26798-21sh21:26:010
71380rcu_preempt26798-21sh21:26:010
71380rcu_preempt13092-21/usr/sbin/munin22:57:221
71380rcu_preempt13092-21/usr/sbin/munin22:57:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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