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2025-12-03 - 17:56
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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 03, 2025 12:54:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71680rcu_preempt0-21swapper/112:04:591
71680rcu_preempt0-21swapper/112:04:591
71460rcu_preempt13669-21copy08:28:042
71460rcu_preempt13669-21copy08:28:042
71460rcu_preempt0-21swapper/008:08:140
71460rcu_preempt0-21swapper/008:08:140
71460rcu_preempt0-21swapper/008:08:140
71440rcu_preempt25517-21kworker/2:112:59:332
71440rcu_preempt25517-21kworker/2:112:59:332
71440rcu_preempt25517-21kworker/2:112:59:332
651994422cyclictest17486-21munin-run11:17:480
651994422cyclictest17486-21munin-run11:17:480
651994311cyclictest12887-21snmpd10:37:480
651994311cyclictest12887-21snmpd10:37:480
71420rcu_preempt0-21swapper/112:58:251
71420rcu_preempt0-21swapper/112:58:251
71420rcu_preempt0-21swapper/112:58:251
71420rcu_preempt0-21swapper/011:52:270
71420rcu_preempt0-21swapper/011:52:270
46050420irq/122-QManpo10056-2109:24:360
46050420irq/122-QManpo10056-2109:24:360
71410rcu_preempt3196-21copy09:42:590
71410rcu_preempt3196-21copy09:42:590
71410rcu_preempt24955-21apt-get12:38:010
71410rcu_preempt24955-21apt-get12:38:010
71410rcu_preempt24955-21apt-get12:38:010
71400rcu_preempt2170-21kworker/1:010:58:021
71400rcu_preempt2170-21kworker/1:010:58:021
71400rcu_preempt2170-21kworker/1:010:58:021
71400rcu_preempt0-21swapper/009:37:470
71400rcu_preempt0-21swapper/009:37:470
71400rcu_preempt0-21swapper/009:07:470
71400rcu_preempt0-21swapper/009:07:470
651994030cyclictest28952-21apt-get09:22:590
651994030cyclictest28952-21apt-get09:22:590
651994030cyclictest15210-21apt-get12:17:580
651994030cyclictest15210-21apt-get12:17:580
651994030cyclictest15210-21apt-get12:17:580
651994029cyclictest6683-21apt-get08:03:010
651994029cyclictest6683-21apt-get08:03:010
651994019cyclictest28764-21ssh12:44:200
651994019cyclictest28764-21ssh12:44:200
651994016cyclictest2601-21apt-get12:58:000
651994016cyclictest2601-21apt-get12:58:000
651994016cyclictest2601-21apt-get12:58:000
651994015cyclictest5408-21memory10:53:090
651994015cyclictest5408-21memory10:53:090
71390rcu_preempt27603-21copy10:32:532
71390rcu_preempt27603-21copy10:32:532
71390rcu_preempt0-21swapper/308:32:583
71390rcu_preempt0-21swapper/308:32:583
71390rcu_preempt0-21swapper/110:18:231
71390rcu_preempt0-21swapper/110:18:231
65199399cyclictest0-21swapper/009:38:030
65199399cyclictest0-21swapper/009:38:030
65199399cyclictest0-21swapper/009:38:030
651993928cyclictest26185-21apt-get09:12:580
651993928cyclictest26185-21apt-get09:12:580
651993919cyclictest22015-21/usr/sbin/munin08:58:090
651993919cyclictest22015-21/usr/sbin/munin08:58:090
651993919cyclictest22015-21/usr/sbin/munin08:58:090
651993917cyclictest12518-21apt-get11:08:000
651993917cyclictest12518-21apt-get11:08:000
651993917cyclictest12518-21apt-get11:08:000
651993916cyclictest0-21swapper/007:48:150
71380rcu_preempt8001-1kworker/1:0H08:28:021
71380rcu_preempt8001-1kworker/1:0H08:28:021
71380rcu_preempt4532-21kworker/0:510:43:080
71380rcu_preempt4532-21kworker/0:510:43:080
71380rcu_preempt20748-1kworker/1:2H10:33:531
71380rcu_preempt20748-1kworker/1:2H10:33:531
71380rcu_preempt0-21swapper/212:00:282
71380rcu_preempt0-21swapper/212:00:282
71380rcu_preempt0-21swapper/210:02:102
71380rcu_preempt0-21swapper/210:02:102
71380rcu_preempt0-21swapper/009:54:220
71380rcu_preempt0-21swapper/009:54:220
71380rcu_preempt0-21swapper/009:54:220
71380rcu_preempt0-21swapper/008:02:070
71380rcu_preempt0-21swapper/008:02:070
65199389cyclictest0-21swapper/008:38:120
65199389cyclictest0-21swapper/008:38:120
65199389cyclictest0-21swapper/008:38:120
65199387cyclictest0-21swapper/011:28:010
65199387cyclictest0-21swapper/011:28:010
65199387cyclictest0-21swapper/011:28:010
651993829cyclictest5342-21apt-get11:57:590
651993829cyclictest5342-21apt-get11:57:590
651993820cyclictest18243-21memory10:13:120
651993820cyclictest18243-21memory10:13:120
651993820cyclictest18243-21memory10:13:120
651993818cyclictest8626-21runrttasks10:00:160
651993818cyclictest8626-21runrttasks10:00:160
651993817cyclictest30523-21df09:28:020
651993817cyclictest30523-21df09:28:020
651993817cyclictest14446-21ssh10:04:090
651993817cyclictest14446-21ssh10:04:090
651993816cyclictest10021-21aten_r4power_cu11:03:010
651993816cyclictest10021-21aten_r4power_cu11:03:010
651993815cyclictest0-21swapper/011:18:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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