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2026-06-25 - 20:06
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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 Jun 25, 2026 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71630rcu_preempt0-21swapper/312:43:213
71630rcu_preempt0-21swapper/312:43:213
71630rcu_preempt0-21swapper/312:43:213
46050520irq/122-QManpo31711-210
46050520irq/122-QManpo31711-210
71470rcu_preempt0-21swapper/312:11:273
71470rcu_preempt0-21swapper/312:11:273
71470rcu_preempt0-21swapper/312:11:273
46450470irq/118-QManpo30451-212
46450470irq/118-QManpo30451-212
71440rcu_preempt0-21swapper/310:14:013
71440rcu_preempt0-21swapper/310:14:013
71440rcu_preempt0-21swapper/310:14:013
71440rcu_preempt0-21swapper/310:14:013
46050440irq/122-QManpo18966-2110:48:550
46050440irq/122-QManpo18966-2110:48:550
100650440irq/38-i2c-mpc0-21swapper/012:09:070
100650440irq/38-i2c-mpc0-21swapper/012:09:070
100650440irq/38-i2c-mpc0-21swapper/012:09:070
71430rcu_preempt2582-21sendmail-msp11:48:253
71430rcu_preempt2582-21sendmail-msp11:48:253
71430rcu_preempt0-21swapper/110:18:401
71430rcu_preempt0-21swapper/110:18:401
71430rcu_preempt0-21swapper/110:18:401
71430rcu_preempt0-21swapper/110:18:401
307452430chrt46050irq/122-QMan10:48:550
307452430chrt46050irq/122-QMan10:48:550
307452430chrt46050irq/122-QMan10:48:550
307452430chrt46050irq/122-QMan10:48:550
71420rcu_preempt0-21swapper/311:28:143
71420rcu_preempt0-21swapper/311:28:143
71420rcu_preempt0-21swapper/311:28:143
71420rcu_preempt0-21swapper/310:31:293
71420rcu_preempt0-21swapper/310:31:293
71420rcu_preempt0-21swapper/310:23:193
71420rcu_preempt0-21swapper/310:23:193
71420rcu_preempt0-21swapper/310:23:193
71420rcu_preempt0-21swapper/307:49:353
71420rcu_preempt0-21swapper/307:49:353
46650410irq/116-QManpo31711-213
46650410irq/116-QManpo31711-213
71400rcu_preempt26045-21apt-get10:03:461
71400rcu_preempt26045-21apt-get10:03:461
46050400irq/122-QManpo20357-2110:48:550
46050400irq/122-QManpo20357-2110:48:550
71390rcu_preempt16191-1kworker/1:0H11:58:571
71390rcu_preempt16191-1kworker/1:0H11:58:571
71390rcu_preempt16191-1kworker/1:0H11:58:571
46050390irq/122-QManpo8443-10
46050390irq/122-QManpo8443-10
46050390irq/122-QManpo7523-10
46050390irq/122-QManpo7523-10
46050390irq/122-QManpo7523-10
46050390irq/122-QManpo3833-2110:48:550
46050390irq/122-QManpo3833-2110:48:550
46050390irq/122-QManpo3833-2110:48:550
46050390irq/122-QManpo2162-2110:48:550
46050390irq/122-QManpo2162-2110:48:550
46050390irq/122-QManpo2162-2110:48:550
46050390irq/122-QManpo1959-2110:48:550
46050390irq/122-QManpo1959-2110:48:550
46050390irq/122-QManpo1959-2110:48:550
46050390irq/122-QManpo1156-2110:48:550
46050390irq/122-QManpo1156-2110:48:550
46050390irq/122-QManpo1156-2110:48:550
100650390irq/38-i2c-mpc6534-21apt-get11:33:580
100650390irq/38-i2c-mpc6534-21apt-get11:33:580
100650390irq/38-i2c-mpc6534-21apt-get11:33:580
71380rcu_preempt13804-1grep10:43:473
71380rcu_preempt13804-1grep10:43:473
71380rcu_preempt13804-1grep10:43:473
71380rcu_preempt0-21swapper/110:24:511
71380rcu_preempt0-21swapper/110:24:511
71380rcu_preempt0-21swapper/110:24:511
46050380irq/122-QManpo30471-2110:48:550
46050380irq/122-QManpo30471-2110:48:550
46050380irq/122-QManpo30471-2110:48:550
46050380irq/122-QManpo19337-2110:48:550
46050380irq/122-QManpo19337-2110:48:550
46050380irq/122-QManpo19337-2110:48:550
46050380irq/122-QManpo19337-2110:48:550
46050380irq/122-QManpo13696-2110:48:550
46050380irq/122-QManpo13696-2110:48:550
46050380irq/122-QManpo13696-2110:48:550
46050380irq/122-QManpo1343-2110:48:550
46050380irq/122-QManpo1343-2110:48:550
1599380migration/026638-21ntp_kernel_pll_10:04:020
1599380migration/026638-21ntp_kernel_pll_10:04:020
1599380migration/026638-21ntp_kernel_pll_10:04:020
1599380migration/026638-21ntp_kernel_pll_10:04:020
71370rcu_preempt27134-21ssh10:04:281
71370rcu_preempt27134-21ssh10:04:281
71370rcu_preempt27134-21ssh10:04:281
71370rcu_preempt27134-21ssh10:04:281
71370rcu_preempt26277-21/usr/sbin/munin08:48:541
71370rcu_preempt26277-21/usr/sbin/munin08:48:541
71370rcu_preempt26277-21/usr/sbin/munin08:48:541
71370rcu_preempt1745-21cron08:12:331
71370rcu_preempt1745-21cron08:12:331
71370rcu_preempt1745-21cron08:12:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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