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2026-01-09 - 00:31
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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 Thu Jan 08, 2026 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71690rcu_preempt0-21swapper/212:39:092
71690rcu_preempt0-21swapper/212:39:092
71690rcu_preempt0-21swapper/212:39:092
71399553cyclictest2261-21apt-get10:10:430
71399553cyclictest2261-21apt-get10:10:430
71399553cyclictest0-21swapper/007:15:510
71399553cyclictest0-21swapper/007:15:510
71399542cyclictest7924-21ssh12:14:490
71399542cyclictest7924-21ssh12:14:490
71399542cyclictest13105-21ntp_states09:30:570
71399542cyclictest13105-21ntp_states09:30:570
71399542cyclictest13105-21ntp_states09:30:570
71399541cyclictest542-21/usr/sbin/munin11:06:020
71399541cyclictest542-21/usr/sbin/munin11:06:020
71399541cyclictest542-21/usr/sbin/munin11:06:020
71399533cyclictest9045-21munin-run11:20:330
71399533cyclictest9045-21munin-run11:20:330
71399533cyclictest9045-21munin-run11:20:330
71399532cyclictest21150-21memory11:40:540
71399532cyclictest21150-21memory11:40:540
71399532cyclictest21150-21memory11:40:540
71399532cyclictest0-21swapper/010:38:460
71399532cyclictest0-21swapper/010:38:460
71399531cyclictest30495-21kworker/0:409:00:560
71399531cyclictest30495-21kworker/0:409:00:560
71399528cyclictest23104-21sshd08:31:240
71399528cyclictest23104-21sshd08:31:240
71399524cyclictest0-21swapper/007:55:520
71399524cyclictest0-21swapper/007:55:520
71399524cyclictest0-21swapper/007:55:520
71399523cyclictest767-21diskmemload10:50:520
71399523cyclictest767-21diskmemload10:50:520
71399523cyclictest767-21diskmemload10:50:520
71399523cyclictest32022-21diskstats10:05:490
71399523cyclictest32022-21diskstats10:05:490
71399523cyclictest0-21swapper/010:24:220
71399523cyclictest0-21swapper/010:24:220
71399523cyclictest0-21swapper/008:45:420
71399523cyclictest0-21swapper/008:45:420
71399523cyclictest0-21swapper/008:20:580
71399523cyclictest0-21swapper/008:20:580
71399523cyclictest0-21swapper/007:30:560
71399523cyclictest0-21swapper/007:30:560
71399522cyclictest29350-21memory10:00:520
71399522cyclictest29350-21memory10:00:520
71399522cyclictest28162-21/usr/sbin/munin08:50:510
71399522cyclictest28162-21/usr/sbin/munin08:50:510
71399522cyclictest26965-1kworker/0:0H10:00:330
71399522cyclictest26965-1kworker/0:0H10:00:330
71399522cyclictest26965-1kworker/0:0H10:00:330
71399522cyclictest26965-1kworker/0:0H10:00:330
71399522cyclictest21687-21ntp_states09:45:550
71399522cyclictest21687-21ntp_states09:45:550
71399522cyclictest21687-21ntp_states09:45:550
71399522cyclictest20108-21diskstats12:35:490
71399522cyclictest20108-21diskstats12:35:490
71399522cyclictest20108-21diskstats12:35:490
71399522cyclictest1668750kworker/0:0H09:39:430
71399522cyclictest1668750kworker/0:0H09:39:430
71399522cyclictest1668750kworker/0:0H09:39:430
71399521cyclictest29279-21/usr/sbin/munin11:55:440
71399521cyclictest29279-21/usr/sbin/munin11:55:440
71399513cyclictest0-21swapper/012:01:460
71399513cyclictest0-21swapper/012:01:460
71399513cyclictest0-21swapper/012:01:460
71399513cyclictest0-21swapper/007:50:450
71399513cyclictest0-21swapper/007:50:450
71399512cyclictest8728-21irqstats12:15:500
71399512cyclictest8728-21irqstats12:15:500
71399512cyclictest8728-21irqstats12:15:500
71399512cyclictest19297-21munin-run08:20:330
71399512cyclictest19297-21munin-run08:20:330
71399512cyclictest19297-21munin-run08:20:330
71399512cyclictest16385-21sh12:29:300
71399512cyclictest16385-21sh12:29:300
71399512cyclictest1552-21ntp_states09:10:570
71399512cyclictest1552-21ntp_states09:10:570
71399512cyclictest1552-21ntp_states09:10:570
71399512cyclictest0-21swapper/011:01:500
71399512cyclictest0-21swapper/011:01:500
71399512cyclictest0-21swapper/011:01:500
71399511cyclictest4513-21ssh11:11:150
71399511cyclictest4513-21ssh11:11:150
71399503cyclictest0-21swapper/011:36:010
71399503cyclictest0-21swapper/011:36:010
71399503cyclictest0-21swapper/010:26:000
71399503cyclictest0-21swapper/010:26:000
71399503cyclictest0-21swapper/010:26:000
71399503cyclictest0-21swapper/009:40:490
71399503cyclictest0-21swapper/009:40:490
71399503cyclictest0-21swapper/009:30:320
71399503cyclictest0-21swapper/009:30:320
71399503cyclictest0-21swapper/009:20:430
71399503cyclictest0-21swapper/009:20:430
71399503cyclictest0-21swapper/009:16:530
71399503cyclictest0-21swapper/009:16:530
71399503cyclictest0-21swapper/008:10:450
71399503cyclictest0-21swapper/008:10:450
71399503cyclictest0-21swapper/007:25:550
71399503cyclictest0-21swapper/007:25:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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