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2026-01-11 - 16:27
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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 Sun Jan 11, 2026 12:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71570rcu_preempt13126-21apt-get11:26:003
71570rcu_preempt13126-21apt-get11:26:003
71550rcu_preempt11882-21crond09:30:342
71550rcu_preempt11882-21crond09:30:342
71550rcu_preempt11882-21crond09:30:342
46050530irq/122-QManpo31844-2110:48:550
46050530irq/122-QManpo31844-2110:48:550
71500rcu_preempt0-21swapper/111:35:011
71500rcu_preempt0-21swapper/111:35:011
71500rcu_preempt0-21swapper/111:35:011
71470rcu_preempt9690-1kworker/1:2H10:48:261
71470rcu_preempt9690-1kworker/1:2H10:48:261
71470rcu_preempt9690-1kworker/1:2H10:48:261
71460rcu_preempt0-21swapper/112:03:341
71460rcu_preempt0-21swapper/112:03:341
71450rcu_preempt8534-21uptime11:16:061
71450rcu_preempt8534-21uptime11:16:061
71440rcu_preempt0-21swapper/108:17:131
71440rcu_preempt0-21swapper/108:17:131
71440rcu_preempt0-21swapper/011:35:400
71440rcu_preempt0-21swapper/011:35:400
71440rcu_preempt0-21swapper/011:35:400
71430rcu_preempt0-21swapper/011:46:020
71430rcu_preempt0-21swapper/011:46:020
71430rcu_preempt0-21swapper/009:49:280
71430rcu_preempt0-21swapper/009:49:280
71430rcu_preempt0-21swapper/009:49:280
46450430irq/118-QManpo30589-212
46450430irq/118-QManpo30589-212
71420rcu_preempt0-21swapper/111:39:201
71420rcu_preempt0-21swapper/111:39:201
71420rcu_preempt0-21swapper/109:55:051
71420rcu_preempt0-21swapper/109:55:051
71420rcu_preempt0-21swapper/109:55:051
71410rcu_preempt9690-1kworker/1:2H10:31:241
71410rcu_preempt9690-1kworker/1:2H10:31:241
71410rcu_preempt9690-1kworker/1:2H10:31:241
71410rcu_preempt11733-21ssh10:26:002
71410rcu_preempt11733-21ssh10:26:002
71410rcu_preempt11733-21ssh10:26:002
46250410irq/120-QManpo31840-2110:48:551
46250410irq/120-QManpo31840-2110:48:551
3187099418cyclictest0-21swapper/010:52:140
3187099418cyclictest0-21swapper/010:52:140
31870994117cyclictest11880-21crond09:30:340
31870994117cyclictest11880-21crond09:30:340
31870994117cyclictest11880-21crond09:30:340
71400rcu_preempt0-21swapper/012:02:410
71400rcu_preempt0-21swapper/012:02:410
71400rcu_preempt0-21swapper/007:20:470
71400rcu_preempt0-21swapper/007:20:470
71400rcu_preempt0-21swapper/007:20:470
3187099409cyclictest77252sleep007:39:480
3187099409cyclictest77252sleep007:39:480
71390rcu_preempt32756-21diskmemload09:46:551
71390rcu_preempt32756-21diskmemload09:46:551
71390rcu_preempt32756-21diskmemload09:46:551
71390rcu_preempt0-21swapper/011:40:580
71390rcu_preempt0-21swapper/011:40:580
71390rcu_preempt0-21swapper/008:05:020
71390rcu_preempt0-21swapper/008:05:020
46650390irq/116-QManpo17743-2110:48:553
46650390irq/116-QManpo17743-2110:48:553
46650390irq/116-QManpo17743-2110:48:553
71380rcu_preempt0-21swapper/111:10:401
71380rcu_preempt0-21swapper/111:10:401
71380rcu_preempt0-21swapper/110:57:451
71380rcu_preempt0-21swapper/110:57:451
71380rcu_preempt0-21swapper/110:29:001
71380rcu_preempt0-21swapper/110:29:001
71380rcu_preempt0-21swapper/110:29:001
71380rcu_preempt0-21swapper/010:38:580
71380rcu_preempt0-21swapper/010:38:580
3187099387cyclictest0-21swapper/011:18:100
3187099387cyclictest0-21swapper/011:18:100
71370rcu_preempt0-21swapper/111:27:331
71370rcu_preempt0-21swapper/111:27:331
71370rcu_preempt0-21swapper/109:30:491
71370rcu_preempt0-21swapper/109:30:491
71370rcu_preempt0-21swapper/109:30:491
71370rcu_preempt0-21swapper/109:26:471
71370rcu_preempt0-21swapper/109:26:471
71370rcu_preempt0-21swapper/109:26:471
71370rcu_preempt0-21swapper/107:12:021
71370rcu_preempt0-21swapper/107:12:021
71370rcu_preempt0-21swapper/011:10:580
71370rcu_preempt0-21swapper/011:10:580
71370rcu_preempt0-21swapper/008:37:060
71370rcu_preempt0-21swapper/008:37:060
71370rcu_preempt0-21swapper/008:25:550
71370rcu_preempt0-21swapper/008:25:550
71360rcu_preempt14936-21ssh10:31:032
71360rcu_preempt14936-21ssh10:31:032
71360rcu_preempt14936-21ssh10:31:032
71360rcu_preempt0-21swapper/112:32:251
71360rcu_preempt0-21swapper/112:32:251
71360rcu_preempt0-21swapper/109:16:211
71360rcu_preempt0-21swapper/109:16:211
71360rcu_preempt0-21swapper/109:03:101
71360rcu_preempt0-21swapper/109:03:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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