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2026-07-18 - 23:31
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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 Sat Jul 18, 2026 12:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71800rcu_preempt0-21swapper/210:14:182
71800rcu_preempt0-21swapper/210:14:182
71800rcu_preempt0-21swapper/210:14:182
71630rcu_preempt0-21swapper/209:39:292
71630rcu_preempt0-21swapper/209:39:292
71630rcu_preempt0-21swapper/209:39:292
1148899501cyclictest17572-21sendmail-msp09:33:141
1148899501cyclictest17572-21sendmail-msp09:33:141
1148899501cyclictest17572-21sendmail-msp09:33:141
71490rcu_preempt0-21swapper/312:11:563
71490rcu_preempt0-21swapper/312:11:563
71470rcu_preempt0-21swapper/109:40:341
71470rcu_preempt0-21swapper/109:40:341
71470rcu_preempt0-21swapper/109:40:341
46050470irq/122-QManpo10871-2110:48:550
46050470irq/122-QManpo10871-2110:48:550
1148899474cyclictest0-21swapper/111:44:221
1148899474cyclictest0-21swapper/111:44:221
1148899474cyclictest0-21swapper/111:44:221
71460rcu_preempt0-21swapper/309:44:223
71460rcu_preempt0-21swapper/309:44:223
71460rcu_preempt0-21swapper/309:44:223
71450rcu_preempt574-21kswapd007:24:072
71450rcu_preempt574-21kswapd007:24:072
71450rcu_preempt16456-21apt-get07:34:183
71450rcu_preempt16456-21apt-get07:34:183
11490994516cyclictest30752-21df_inode09:49:173
11490994516cyclictest30752-21df_inode09:49:173
11490994516cyclictest30752-21df_inode09:49:173
1148899451cyclictest30545-21cut08:24:101
1148899451cyclictest30545-21cut08:24:101
1148899451cyclictest30545-21cut08:24:101
1148899451cyclictest1959-21runrttasks08:54:371
1148899451cyclictest1959-21runrttasks08:54:371
1148899451cyclictest1959-21runrttasks08:54:371
71440rcu_preempt4251-21sh12:08:593
71440rcu_preempt4251-21sh12:08:593
71440rcu_preempt4251-21sh12:08:593
71440rcu_preempt0-21swapper/109:39:011
71440rcu_preempt0-21swapper/109:39:011
46250440irq/120-QManpo11185-2110:48:551
46250440irq/120-QManpo11185-2110:48:551
1148899444cyclictest0-21swapper/111:20:281
1148899444cyclictest0-21swapper/111:20:281
1148899444cyclictest0-21swapper/110:55:271
1148899444cyclictest0-21swapper/110:55:271
1148899444cyclictest0-21swapper/110:55:271
1148899443cyclictest9021-21ntp_states11:14:251
1148899443cyclictest9021-21ntp_states11:14:251
1148899443cyclictest9021-21ntp_states11:14:251
1148899443cyclictest5616-21diskstats10:04:151
1148899443cyclictest5616-21diskstats10:04:151
1148899443cyclictest5616-21diskstats10:04:151
1148899443cyclictest2670-21memory08:39:181
1148899443cyclictest2670-21memory08:39:181
1148899443cyclictest25173-21df_inode08:04:151
1148899443cyclictest25173-21df_inode08:04:151
1148899443cyclictest0-21swapper/111:39:131
1148899443cyclictest0-21swapper/111:39:131
1148899443cyclictest0-21swapper/110:51:551
1148899443cyclictest0-21swapper/110:51:551
1148899443cyclictest0-21swapper/110:51:551
1148899443cyclictest0-21swapper/110:39:271
1148899443cyclictest0-21swapper/110:39:271
1148899443cyclictest0-21swapper/110:19:351
1148899443cyclictest0-21swapper/110:19:351
1148899443cyclictest0-21swapper/110:19:351
1148899443cyclictest0-21swapper/110:19:351
1148899443cyclictest0-21swapper/109:49:331
1148899443cyclictest0-21swapper/109:49:331
1148899443cyclictest0-21swapper/109:49:331
1148899443cyclictest0-21swapper/109:24:011
1148899443cyclictest0-21swapper/109:24:011
1148899443cyclictest0-21swapper/107:39:181
1148899443cyclictest0-21swapper/107:39:181
1148899442cyclictest3531-21sendmail-msp09:04:241
1148899442cyclictest3531-21sendmail-msp09:04:241
71430rcu_preempt574-21kswapd009:39:032
71430rcu_preempt574-21kswapd009:39:032
71430rcu_preempt0-21swapper/307:24:013
71430rcu_preempt0-21swapper/307:24:013
1148899435cyclictest0-21swapper/108:49:211
1148899435cyclictest0-21swapper/108:49:211
1148899434cyclictest0-21swapper/112:11:501
1148899434cyclictest0-21swapper/112:11:501
1148899434cyclictest0-21swapper/111:09:111
1148899434cyclictest0-21swapper/111:09:111
1148899434cyclictest0-21swapper/111:09:111
1148899433cyclictest28233-21ntp_states08:14:251
1148899433cyclictest28233-21ntp_states08:14:251
1148899433cyclictest28233-21ntp_states08:14:251
1148899433cyclictest19273-21ntp_states11:34:241
1148899433cyclictest19273-21ntp_states11:34:241
1148899433cyclictest19273-21ntp_states11:34:241
1148899433cyclictest0-21swapper/112:42:011
1148899433cyclictest0-21swapper/112:42:011
1148899433cyclictest0-21swapper/112:34:111
1148899433cyclictest0-21swapper/112:34:111
1148899433cyclictest0-21swapper/112:18:181
1148899433cyclictest0-21swapper/112:18:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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