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2026-04-24 - 09:09
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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 Fri Apr 24, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71620rcu_preempt0-21swapper/020:18:000
71620rcu_preempt0-21swapper/020:18:000
71560rcu_preempt0-21swapper/021:34:060
71560rcu_preempt0-21swapper/021:34:060
46050540irq/122-QManpo7541-2110:48:550
46050540irq/122-QManpo7541-2110:48:550
71530rcu_preempt0-21swapper/320:22:403
71530rcu_preempt0-21swapper/320:22:403
71470rcu_preempt11094-21/usr/sbin/munin19:22:561
71470rcu_preempt11094-21/usr/sbin/munin19:22:561
71440rcu_preempt0-21swapper/100:12:381
71440rcu_preempt0-21swapper/100:12:381
71430rcu_preempt8431-21/usr/sbin/munin00:08:002
71430rcu_preempt8431-21/usr/sbin/munin00:08:002
71430rcu_preempt8431-21/usr/sbin/munin00:08:002
71430rcu_preempt0-21swapper/300:08:283
71430rcu_preempt0-21swapper/300:08:283
71430rcu_preempt0-21swapper/300:08:283
71430rcu_preempt0-21swapper/223:23:262
71430rcu_preempt0-21swapper/223:23:262
71430rcu_preempt0-21swapper/223:23:262
71430rcu_preempt0-21swapper/120:17:471
71430rcu_preempt0-21swapper/120:17:471
71420rcu_preempt26395-21runrttasks20:17:563
71420rcu_preempt26395-21runrttasks20:17:563
71410rcu_preempt20366-21sh23:32:283
71410rcu_preempt20366-21sh23:32:283
71410rcu_preempt20366-21sh23:32:283
71400rcu_preempt25074-21ssh00:38:251
71400rcu_preempt25074-21ssh00:38:251
71400rcu_preempt25074-21ssh00:38:251
71400rcu_preempt0-21swapper/221:27:342
71400rcu_preempt0-21swapper/221:27:342
46050400irq/122-QManpo28579-2110:48:550
46050400irq/122-QManpo28579-2110:48:550
46050400irq/122-QManpo26037-2110:48:550
46050400irq/122-QManpo26037-2110:48:550
46050400irq/122-QManpo17349-2110:48:550
46050400irq/122-QManpo17349-2110:48:550
46050400irq/122-QManpo0-210
46050400irq/122-QManpo0-210
46050400irq/122-QManpo0-210
71390rcu_preempt5893-1kworker/2:1H23:07:312
71390rcu_preempt5893-1kworker/2:1H23:07:312
71390rcu_preempt5893-1kworker/2:1H23:07:312
71390rcu_preempt4620-21sendmail-msp23:20:222
71390rcu_preempt4620-21sendmail-msp23:20:222
71390rcu_preempt4620-21sendmail-msp23:20:222
71390rcu_preempt10303-21apt-get19:22:480
71390rcu_preempt10303-21apt-get19:22:480
71390rcu_preempt0-21swapper/219:47:282
71390rcu_preempt0-21swapper/219:47:282
71390rcu_preempt0-21swapper/123:19:251
71390rcu_preempt0-21swapper/123:19:251
71390rcu_preempt0-21swapper/123:19:251
71390rcu_preempt0-21swapper/122:13:521
71390rcu_preempt0-21swapper/122:13:521
71390rcu_preempt0-21swapper/000:29:070
71390rcu_preempt0-21swapper/000:29:070
71390rcu_preempt0-21swapper/000:29:070
46450390irq/118-QManpo0-2110:48:552
46450390irq/118-QManpo0-2110:48:552
46050390irq/122-QManpo24255-2110:48:550
46050390irq/122-QManpo24255-2110:48:550
1599390migration/030976-21runrttasks23:51:200
1599390migration/030976-21runrttasks23:51:200
1599390migration/030976-21runrttasks23:51:200
71380rcu_preempt29872-21ssh21:50:131
71380rcu_preempt29872-21ssh21:50:131
71380rcu_preempt29872-21ssh21:50:131
71380rcu_preempt23488-21df_abs22:37:441
71380rcu_preempt23488-21df_abs22:37:441
71380rcu_preempt20453-21ssh22:32:392
71380rcu_preempt20453-21ssh22:32:392
71380rcu_preempt12257-21apt-get22:17:421
71380rcu_preempt12257-21apt-get22:17:421
71380rcu_preempt0-21swapper/323:06:193
71380rcu_preempt0-21swapper/323:06:193
71380rcu_preempt0-21swapper/323:06:193
71380rcu_preempt0-21swapper/320:28:433
71380rcu_preempt0-21swapper/320:28:433
71380rcu_preempt0-21swapper/319:52:363
71380rcu_preempt0-21swapper/319:52:363
71380rcu_preempt0-21swapper/222:40:592
71380rcu_preempt0-21swapper/222:40:592
71380rcu_preempt0-21swapper/222:04:242
71380rcu_preempt0-21swapper/222:04:242
71380rcu_preempt0-21swapper/222:01:502
71380rcu_preempt0-21swapper/222:01:502
71380rcu_preempt0-21swapper/222:01:502
71380rcu_preempt0-21swapper/200:38:012
71380rcu_preempt0-21swapper/200:38:012
71380rcu_preempt0-21swapper/200:38:012
71380rcu_preempt0-21swapper/122:27:181
71380rcu_preempt0-21swapper/122:27:181
71380rcu_preempt0-21swapper/121:57:451
71380rcu_preempt0-21swapper/121:57:451
71380rcu_preempt0-21swapper/121:57:451
71380rcu_preempt0-21swapper/121:45:341
71380rcu_preempt0-21swapper/121:45:341
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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