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2025-12-24 - 12:07
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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 Dec 24, 2025 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71800rcu_preempt0-21swapper/221:31:232
71800rcu_preempt0-21swapper/221:31:232
71800rcu_preempt0-21swapper/221:31:232
71560rcu_preempt0-21swapper/020:05:260
71560rcu_preempt0-21swapper/020:05:260
71490rcu_preempt0-21swapper/221:20:272
71490rcu_preempt0-21swapper/221:20:272
71470rcu_preempt0-21swapper/200:08:312
71470rcu_preempt0-21swapper/200:08:312
71470rcu_preempt0-21swapper/200:08:312
46050470irq/122-QManpo6230-2110:48:550
46050470irq/122-QManpo6230-2110:48:550
71460rcu_preempt0-21swapper/120:55:231
71460rcu_preempt0-21swapper/120:55:231
71450rcu_preempt0-21swapper/223:35:252
71450rcu_preempt0-21swapper/223:35:252
71450rcu_preempt0-21swapper/223:35:252
71450rcu_preempt0-21swapper/222:00:272
71450rcu_preempt0-21swapper/222:00:272
71450rcu_preempt0-21swapper/221:50:342
71450rcu_preempt0-21swapper/221:50:342
46050440irq/122-QManpo4561-2110:48:550
46050440irq/122-QManpo4561-2110:48:550
100650440irq/38-i2c-mpc181ksoftirqd/122:13:471
100650440irq/38-i2c-mpc181ksoftirqd/122:13:471
71430rcu_preempt0-21swapper/021:54:220
71430rcu_preempt0-21swapper/021:54:220
46050430irq/122-QManpo0-210
46050430irq/122-QManpo0-210
46050430irq/122-QManpo0-210
71410rcu_preempt0-21swapper/321:54:423
71410rcu_preempt0-21swapper/321:54:423
71400rcu_preempt3627-21copy22:00:283
71400rcu_preempt3627-21copy22:00:283
71400rcu_preempt0-21swapper/219:11:082
71400rcu_preempt0-21swapper/219:11:082
2299400migration/26115-21taskset19:08:552
2299400migration/26115-21taskset19:08:552
71390rcu_preempt26960-21ssh22:40:320
71390rcu_preempt26960-21ssh22:40:320
71390rcu_preempt13543-21ssh21:20:370
71390rcu_preempt13543-21ssh21:20:370
71390rcu_preempt0-21swapper/222:30:182
71390rcu_preempt0-21swapper/222:30:182
71390rcu_preempt0-21swapper/023:36:320
71390rcu_preempt0-21swapper/023:36:320
71390rcu_preempt0-21swapper/023:36:320
71380rcu_preempt7235-21latency_hist21:10:172
71380rcu_preempt7235-21latency_hist21:10:172
71380rcu_preempt574-21kswapd022:30:240
71380rcu_preempt574-21kswapd022:30:240
71380rcu_preempt15870-21ssh23:17:040
71380rcu_preempt15870-21ssh23:17:040
71380rcu_preempt15870-21ssh23:17:040
71380rcu_preempt0-21swapper/222:23:032
71380rcu_preempt0-21swapper/222:23:032
71380rcu_preempt0-21swapper/220:10:382
71380rcu_preempt0-21swapper/220:10:382
71380rcu_preempt0-21swapper/021:47:270
71380rcu_preempt0-21swapper/021:47:270
71380rcu_preempt0-21swapper/000:30:310
71380rcu_preempt0-21swapper/000:30:310
71370rcu_preempt29787-21ssh21:49:111
71370rcu_preempt29787-21ssh21:49:111
71370rcu_preempt26494-21cron22:40:150
71370rcu_preempt26494-21cron22:40:150
71370rcu_preempt26494-21cron22:40:150
71370rcu_preempt21539-21/usr/sbin/munin22:30:432
71370rcu_preempt21539-21/usr/sbin/munin22:30:432
71370rcu_preempt18975-21seq00:19:582
71370rcu_preempt18975-21seq00:19:582
71370rcu_preempt18975-21seq00:19:582
71370rcu_preempt16387-21ssh21:25:342
71370rcu_preempt16387-21ssh21:25:342
71370rcu_preempt16387-21ssh21:25:342
71370rcu_preempt0-21swapper/222:06:302
71370rcu_preempt0-21swapper/222:06:302
71370rcu_preempt0-21swapper/121:54:181
71370rcu_preempt0-21swapper/121:54:181
71370rcu_preempt0-21swapper/023:07:390
71370rcu_preempt0-21swapper/023:07:390
71370rcu_preempt0-21swapper/023:07:390
71370rcu_preempt0-21swapper/021:31:170
71370rcu_preempt0-21swapper/021:31:170
71370rcu_preempt0-21swapper/021:31:170
71370rcu_preempt0-21swapper/021:19:180
71370rcu_preempt0-21swapper/021:19:180
71370rcu_preempt0-21swapper/020:45:280
71370rcu_preempt0-21swapper/020:45:280
71370rcu_preempt0-21swapper/020:45:280
46050370irq/122-QManpo19281-2110:48:550
46050370irq/122-QManpo19281-2110:48:550
46050370irq/122-QManpo19281-2110:48:550
46050370irq/122-QManpo11981-2110:48:550
46050370irq/122-QManpo11981-2110:48:550
46050370irq/122-QManpo11981-2110:48:550
46050370irq/122-QManpo0-210
46050370irq/122-QManpo0-210
46050370irq/122-QManpo0-210
71360rcu_preempt24998-21/usr/sbin/munin00:30:472
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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