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2026-03-19 - 11:21
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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 Thu Mar 19, 2026 00:44:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71690rcu_preempt0-21swapper/300:30:183
71690rcu_preempt0-21swapper/300:30:183
71660rcu_preempt0-21swapper/322:49:343
71660rcu_preempt0-21swapper/322:49:343
71570rcu_preempt3695-21apt-get21:27:100
71570rcu_preempt3695-21apt-get21:27:100
71560rcu_preempt0-21swapper/223:48:312
71560rcu_preempt0-21swapper/223:48:312
46050470irq/122-QManpo0-210
46050470irq/122-QManpo0-210
46050470irq/122-QManpo0-210
71450rcu_preempt0-21swapper/323:45:283
71450rcu_preempt0-21swapper/323:45:283
71450rcu_preempt0-21swapper/323:45:283
71440rcu_preempt6786-21sh00:24:113
71440rcu_preempt6786-21sh00:24:113
71440rcu_preempt1699migration/122:46:391
71440rcu_preempt1699migration/122:46:391
71440rcu_preempt1699migration/122:46:391
46250440irq/120-QManpo26555-2110:48:551
46250440irq/120-QManpo26555-2110:48:551
1599420migration/013083-21/usr/sbin/munin23:37:190
1599420migration/013083-21/usr/sbin/munin23:37:190
71410rcu_preempt0-21swapper/319:22:003
71410rcu_preempt0-21swapper/319:22:003
264542410sleep024803-1kworker/0:1H19:10:500
264542410sleep024803-1kworker/0:1H19:10:500
71400rcu_preempt13468-1kworker/1:1H23:42:361
71400rcu_preempt13468-1kworker/1:1H23:42:361
71400rcu_preempt13468-1kworker/1:1H23:42:361
71400rcu_preempt0-21swapper/323:08:113
71400rcu_preempt0-21swapper/323:08:113
46050400irq/122-QManpo16835-2110:48:550
46050400irq/122-QManpo16835-2110:48:550
46050400irq/122-QManpo0-210
46050400irq/122-QManpo0-210
71390rcu_preempt0-21swapper/122:04:241
71390rcu_preempt0-21swapper/122:04:241
46050390irq/122-QManpo19254-2110:48:550
46050390irq/122-QManpo19254-2110:48:550
46050390irq/122-QManpo1188-2110:48:550
46050390irq/122-QManpo1188-2110:48:550
46050390irq/122-QManpo1188-2110:48:550
71380rcu_preempt24794-21sendmail-msp23:05:391
71380rcu_preempt24794-21sendmail-msp23:05:391
71380rcu_preempt24794-21sendmail-msp23:05:391
71380rcu_preempt0-21swapper/321:11:543
71380rcu_preempt0-21swapper/321:11:543
71380rcu_preempt0-21swapper/122:17:021
71380rcu_preempt0-21swapper/122:17:021
71380rcu_preempt0-21swapper/121:58:191
71380rcu_preempt0-21swapper/121:58:191
6212380sleep027655-1kworker/0:1H22:17:340
6212380sleep027655-1kworker/0:1H22:17:340
46050380irq/122-QManpo3746-10
46050380irq/122-QManpo3746-10
46050380irq/122-QManpo2694-2110:48:550
46050380irq/122-QManpo2694-2110:48:550
46050380irq/122-QManpo2694-2110:48:550
46050380irq/122-QManpo23046-2110:48:550
46050380irq/122-QManpo23046-2110:48:550
71370rcu_preempt0-21swapper/323:06:233
71370rcu_preempt0-21swapper/323:06:233
71370rcu_preempt0-21swapper/323:06:233
71370rcu_preempt0-21swapper/322:52:003
71370rcu_preempt0-21swapper/322:52:003
71370rcu_preempt0-21swapper/322:12:263
71370rcu_preempt0-21swapper/322:12:263
71370rcu_preempt0-21swapper/322:12:263
71370rcu_preempt0-21swapper/219:11:502
71370rcu_preempt0-21swapper/219:11:502
71370rcu_preempt0-21swapper/100:36:541
71370rcu_preempt0-21swapper/100:36:541
71370rcu_preempt0-21swapper/100:36:541
46050370irq/122-QManpo30203-210
46050370irq/122-QManpo30203-210
46050370irq/122-QManpo26366-2110:48:550
46050370irq/122-QManpo26366-2110:48:550
46050370irq/122-QManpo24799-2110:48:550
46050370irq/122-QManpo24799-2110:48:550
46050370irq/122-QManpo22436-2110:48:550
46050370irq/122-QManpo22436-2110:48:550
46050370irq/122-QManpo22436-2110:48:550
46050370irq/122-QManpo20904-2110:48:550
46050370irq/122-QManpo20904-2110:48:550
46050370irq/122-QManpo16771-2110:48:550
46050370irq/122-QManpo16771-2110:48:550
46050370irq/122-QManpo12236-2110:48:550
46050370irq/122-QManpo12236-2110:48:550
194912370sleep013386-1kworker/0:2H21:53:580
194912370sleep013386-1kworker/0:2H21:53:580
194912370sleep013386-1kworker/0:2H21:53:580
1599370migration/024467-21sh23:57:270
1599370migration/024467-21sh23:57:270
71360rcu_preempt6997-21ssh00:24:480
71360rcu_preempt6997-21ssh00:24:480
71360rcu_preempt27143-21ssh22:07:193
71360rcu_preempt27143-21ssh22:07:193
71360rcu_preempt2550-21sendmail-msp19:42:491
71360rcu_preempt2550-21sendmail-msp19:42:491
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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