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2026-06-17 - 11:32
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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 Wed Jun 17, 2026 00:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71750rcu_preempt0-21swapper/321:46:133
71750rcu_preempt0-21swapper/321:46:133
71750rcu_preempt0-21swapper/321:46:133
71490rcu_preempt0-21swapper/100:33:311
71490rcu_preempt0-21swapper/100:33:311
71470rcu_preempt0-21swapper/121:19:011
71470rcu_preempt0-21swapper/121:19:011
46050470irq/122-QManpo0-210
46050470irq/122-QManpo0-210
46050470irq/122-QManpo0-210
46050450irq/122-QManpo27575-110:48:550
46050450irq/122-QManpo27575-110:48:550
46050450irq/122-QManpo27575-110:48:550
28392994516cyclictest25741-21ntp_states20:58:551
28392994516cyclictest25741-21ntp_states20:58:551
71440rcu_preempt7958-21copy23:38:302
71440rcu_preempt7958-21copy23:38:302
71440rcu_preempt7958-21copy23:38:302
71440rcu_preempt0-21swapper/222:08:112
71440rcu_preempt0-21swapper/222:08:112
71440rcu_preempt0-21swapper/121:53:371
71440rcu_preempt0-21swapper/121:53:371
71440rcu_preempt0-21swapper/121:53:371
28392994431cyclictest1959-21runrttasks23:08:221
28392994431cyclictest1959-21runrttasks23:08:221
28392994421cyclictest7360-21diskstats19:53:411
28392994421cyclictest7360-21diskstats19:53:411
28392994421cyclictest7360-21diskstats19:53:411
28392994421cyclictest7221-21ssh23:36:181
28392994421cyclictest7221-21ssh23:36:181
28392994421cyclictest7221-21ssh23:36:181
71420rcu_preempt30380-21sh22:16:011
71420rcu_preempt30380-21sh22:16:011
71420rcu_preempt30380-21sh22:16:011
71420rcu_preempt0-21swapper/323:23:343
71420rcu_preempt0-21swapper/323:23:343
71420rcu_preempt0-21swapper/323:23:343
71420rcu_preempt0-21swapper/122:53:261
71420rcu_preempt0-21swapper/122:53:261
71420rcu_preempt0-21swapper/122:53:261
71420rcu_preempt0-21swapper/122:27:391
71420rcu_preempt0-21swapper/122:27:391
71420rcu_preempt0-21swapper/122:27:391
28392994222cyclictest7176-21diskstats22:33:471
28392994222cyclictest7176-21diskstats22:33:471
28392994222cyclictest7176-21diskstats22:33:471
28392994222cyclictest19807-21df20:38:401
28392994222cyclictest19807-21df20:38:401
28392994222cyclictest1801-21diskstats19:33:421
28392994222cyclictest1801-21diskstats19:33:421
28392994222cyclictest1801-21diskstats19:33:421
28392994222cyclictest17525-21irqstats22:53:481
28392994222cyclictest17525-21irqstats22:53:481
28392994222cyclictest17525-21irqstats22:53:481
28392994221cyclictest17553-21/usr/sbin/munin20:28:531
28392994221cyclictest17553-21/usr/sbin/munin20:28:531
71410rcu_preempt28762-21apt-get22:13:341
71410rcu_preempt27864-1sh19:08:592
71410rcu_preempt27864-1sh19:08:592
71410rcu_preempt27864-1sh19:08:592
71410rcu_preempt0-21swapper/123:27:561
71410rcu_preempt0-21swapper/123:27:561
71410rcu_preempt0-21swapper/123:27:561
28392994124cyclictest1959-21runrttasks21:48:031
28392994124cyclictest1959-21runrttasks21:48:031
28392994124cyclictest1959-21runrttasks21:48:031
28392994122cyclictest21212-21df20:43:421
28392994122cyclictest21212-21df20:43:421
28392994121cyclictest8741-21df_inode19:58:421
28392994121cyclictest8741-21df_inode19:58:421
28392994120cyclictest6421-21ssh00:38:281
28392994120cyclictest6421-21ssh00:38:281
28392994120cyclictest16816-21/usr/sbin/munin23:53:561
28392994120cyclictest16816-21/usr/sbin/munin23:53:561
28392994120cyclictest16816-21/usr/sbin/munin23:53:561
71400rcu_preempt26822-21wc19:08:441
71400rcu_preempt26822-21wc19:08:441
71400rcu_preempt26822-21wc19:08:441
71400rcu_preempt0-21swapper/223:54:492
71400rcu_preempt0-21swapper/223:54:492
71400rcu_preempt0-21swapper/223:54:492
71400rcu_preempt0-21swapper/100:18:301
71400rcu_preempt0-21swapper/100:18:301
71400rcu_preempt0-21swapper/100:18:301
28392994021cyclictest6144-21meminfo19:48:471
28392994021cyclictest6144-21meminfo19:48:471
28392994021cyclictest23610-21taskset20:52:381
28392994021cyclictest23610-21taskset20:52:381
28392994021cyclictest23237-21ssh00:07:481
28392994021cyclictest23237-21ssh00:07:481
28392994021cyclictest23237-21ssh00:07:481
28392994021cyclictest15630-21df20:23:401
28392994021cyclictest15630-21df20:23:401
28392994021cyclictest15630-21df20:23:401
28392994020cyclictest1556-21date22:23:271
28392994020cyclictest1556-21date22:23:271
28392994019cyclictest1959-21runrttasks20:38:151
28392994019cyclictest1959-21runrttasks20:38:151
28392994019cyclictest1959-21runrttasks20:38:151
28392994019cyclictest10566-21cut20:03:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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