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2026-04-22 - 00:44
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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 Tue Apr 21, 2026 12:44:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
101802810chrt46650irq/116-QMan10:48:553
101802810chrt46650irq/116-QMan10:48:553
101802810chrt46650irq/116-QMan10:48:553
71710rcu_preempt0-21swapper/210:22:362
71710rcu_preempt0-21swapper/210:22:362
71710rcu_preempt0-21swapper/210:22:362
71690rcu_preempt0-21swapper/210:17:312
71690rcu_preempt0-21swapper/210:17:312
71690rcu_preempt0-21swapper/010:00:120
71690rcu_preempt0-21swapper/010:00:120
71690rcu_preempt0-21swapper/010:00:120
71640rcu_preempt0-21swapper/009:44:250
71640rcu_preempt0-21swapper/009:44:250
71640rcu_preempt0-21swapper/009:44:250
71530rcu_preempt0-21swapper/011:13:050
71530rcu_preempt0-21swapper/011:13:050
855299511cyclictest1958-21snmpd12:23:282
855299511cyclictest1958-21snmpd12:23:282
8550994936cyclictest8566-21apt-get07:12:360
8550994936cyclictest8566-21apt-get07:12:360
8550994936cyclictest8566-21apt-get07:12:360
71490rcu_preempt0-21swapper/010:11:460
71490rcu_preempt0-21swapper/010:11:460
71490rcu_preempt0-21swapper/010:11:460
71470rcu_preempt0-21swapper/110:27:321
71470rcu_preempt0-21swapper/110:27:321
71470rcu_preempt0-21swapper/110:27:321
8550994625cyclictest23870-21/usr/sbin/munin08:07:380
8550994625cyclictest23870-21/usr/sbin/munin08:07:380
8550994623cyclictest1959-21runrttasks09:22:280
8550994623cyclictest1959-21runrttasks09:22:280
855399453cyclictest0-21swapper/312:31:493
855399453cyclictest0-21swapper/312:31:493
855399453cyclictest0-21swapper/312:31:493
855399451cyclictest27660-21kworker/u8:211:17:533
855399451cyclictest27660-21kworker/u8:211:17:533
855399451cyclictest27660-21kworker/u8:211:17:533
855399451cyclictest16367-21apt-get11:22:483
855399451cyclictest16367-21apt-get11:22:483
855399451cyclictest16367-21apt-get11:22:483
855299452cyclictest25896-21ssh11:38:372
855299452cyclictest25896-21ssh11:38:372
855299452cyclictest25896-21ssh11:38:372
8550994535cyclictest31655-21apt-get09:52:370
8550994535cyclictest31655-21apt-get09:52:370
8550994524cyclictest772-21users10:52:580
8550994524cyclictest772-21users10:52:580
8550994524cyclictest4130-21df08:52:400
8550994524cyclictest4130-21df08:52:400
8553994418cyclictest13654-21ntp_states10:17:503
8553994418cyclictest13654-21ntp_states10:17:503
8553994418cyclictest13654-21ntp_states10:17:503
855299448cyclictest32260-21ssh11:51:142
855299448cyclictest32260-21ssh11:51:142
8550994424cyclictest6382-21ssh10:04:170
8550994424cyclictest6382-21ssh10:04:170
8550994424cyclictest27396-21wc11:42:280
8550994424cyclictest27396-21wc11:42:280
8550994424cyclictest27396-21wc11:42:280
8550994424cyclictest21114-21memory09:32:480
8550994424cyclictest21114-21memory09:32:480
8550994424cyclictest21114-21memory09:32:480
8550994424cyclictest18455-21df07:47:410
8550994424cyclictest18455-21df07:47:410
8550994422cyclictest27231-21/usr/sbin/munin08:17:530
8550994422cyclictest27231-21/usr/sbin/munin08:17:530
8550994421cyclictest0-21swapper/009:07:440
8550994421cyclictest0-21swapper/009:07:440
8550994420cyclictest0-21swapper/012:11:290
8550994420cyclictest0-21swapper/012:11:290
8550994420cyclictest0-21swapper/012:11:290
855399433cyclictest0-21swapper/309:42:463
855399433cyclictest0-21swapper/309:42:463
855399433cyclictest0-21swapper/309:42:463
855399432cyclictest6729-21ntp_states12:02:513
855399432cyclictest6729-21ntp_states12:02:513
855399432cyclictest4802-21munin-run10:02:273
855399432cyclictest4802-21munin-run10:02:273
855399432cyclictest4802-21munin-run10:02:273
855399432cyclictest25255-21ntp_states11:37:523
855399432cyclictest25255-21ntp_states11:37:523
855399432cyclictest25255-21ntp_states11:37:523
855399432cyclictest22660-21ntp_states12:32:533
855399432cyclictest22660-21ntp_states12:32:533
855399432cyclictest22104-21diskstats11:32:423
855399432cyclictest22104-21diskstats11:32:423
855299433cyclictest0-21swapper/211:22:432
855299433cyclictest0-21swapper/211:22:432
855299433cyclictest0-21swapper/211:22:432
855299433cyclictest0-21swapper/207:57:492
855299433cyclictest0-21swapper/207:57:492
855299433cyclictest0-21swapper/207:57:492
855299432cyclictest26555-21df09:42:402
855299432cyclictest26555-21df09:42:402
855299432cyclictest26555-21df09:42:402
8552994317cyclictest28004-1ssh11:42:482
8552994317cyclictest28004-1ssh11:42:482
8552994317cyclictest28004-1ssh11:42:482
8550994323cyclictest2977-21/usr/sbin/munin10:57:440
8550994323cyclictest2977-21/usr/sbin/munin10:57:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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