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2026-06-23 - 12:25
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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 Jun 23, 2026 00:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71660rcu_preempt0-21swapper/123:37:081
71660rcu_preempt0-21swapper/123:37:081
71660rcu_preempt0-21swapper/123:37:081
71570rcu_preempt0-21swapper/122:05:451
71570rcu_preempt0-21swapper/122:05:451
71570rcu_preempt0-21swapper/122:05:451
3162899571cyclictest26742-21apt-get22:03:430
3162899571cyclictest26742-21apt-get22:03:430
3162899571cyclictest26742-21apt-get22:03:430
3162899571cyclictest18175-21users20:18:590
3162899571cyclictest18175-21users20:18:590
3162899562cyclictest0-21swapper/000:07:190
3162899562cyclictest0-21swapper/000:07:190
3162899532cyclictest30305-21apt-get23:13:430
3162899532cyclictest30305-21apt-get23:13:430
3162899532cyclictest30305-21apt-get23:13:430
3162899524cyclictest0-21swapper/023:44:030
3162899524cyclictest0-21swapper/023:44:030
3162899523cyclictest0-21swapper/000:34:330
3162899523cyclictest0-21swapper/000:34:330
3162899523cyclictest0-21swapper/000:34:330
3162899522cyclictest7603-21apt-get19:43:420
3162899522cyclictest7603-21apt-get19:43:420
3162899522cyclictest5996-1kworker/0:1H19:48:440
3162899522cyclictest5996-1kworker/0:1H19:48:440
3162899521cyclictest14548-21apt-get20:08:440
3162899521cyclictest14548-21apt-get20:08:440
3162899521cyclictest14548-21apt-get20:08:440
31628995217cyclictest0-21swapper/022:27:590
31628995217cyclictest0-21swapper/022:27:590
31628995217cyclictest0-21swapper/022:27:590
31628995216cyclictest21893-21diskstats21:53:520
31628995216cyclictest21893-21diskstats21:53:520
31628995216cyclictest21893-21diskstats21:53:520
3162899513cyclictest0-21swapper/020:58:580
3162899513cyclictest0-21swapper/020:58:580
3162899513cyclictest0-21swapper/020:58:580
3162899512cyclictest29454-21meminfo00:13:540
3162899512cyclictest29454-21meminfo00:13:540
3162899512cyclictest29454-21meminfo00:13:540
3162899512cyclictest28168-21/usr/sbin/munin23:08:550
3162899512cyclictest28168-21/usr/sbin/munin23:08:550
3162899512cyclictest28168-21/usr/sbin/munin23:08:550
3162899512cyclictest26061-21meminfo20:48:530
3162899512cyclictest26061-21meminfo20:48:530
3162899512cyclictest26061-21meminfo20:48:530
3162899512cyclictest10300-21ntp_states22:33:590
3162899512cyclictest10300-21ntp_states22:33:590
3162899511cyclictest8303-21apt-get23:33:450
3162899511cyclictest8303-21apt-get23:33:450
3162899511cyclictest8303-21apt-get23:33:450
3162899511cyclictest2033-21apt-get19:23:420
3162899511cyclictest2033-21apt-get19:23:420
3162899511cyclictest2033-21apt-get19:23:420
31628995119cyclictest0-21swapper/022:30:520
31628995119cyclictest0-21swapper/022:30:520
31628995119cyclictest0-21swapper/022:30:520
3162899503cyclictest0-21swapper/023:19:510
3162899503cyclictest0-21swapper/023:19:510
3162899503cyclictest0-21swapper/023:19:510
3162899503cyclictest0-21swapper/021:29:170
3162899503cyclictest0-21swapper/021:29:170
3162899503cyclictest0-21swapper/020:18:330
3162899503cyclictest0-21swapper/020:18:330
3162899503cyclictest0-21swapper/020:18:330
3162899503cyclictest0-21swapper/000:43:120
3162899503cyclictest0-21swapper/000:43:120
3162899502cyclictest2829-1kworker/0:0H21:18:560
3162899502cyclictest2829-1kworker/0:0H21:18:560
3162899502cyclictest20110-21apt-get20:28:440
3162899502cyclictest20110-21apt-get20:28:440
3162899502cyclictest20110-21apt-get20:28:440
3162899502cyclictest16618-21df21:43:450
3162899502cyclictest16618-21df21:43:450
3162899502cyclictest16618-21df21:43:450
3162899502cyclictest13848-21diskstats21:38:480
3162899502cyclictest13848-21diskstats21:38:480
3162899502cyclictest13848-21diskstats21:38:480
3162899501cyclictest3466-21ssh00:26:210
3162899501cyclictest3466-21ssh00:26:210
3162899501cyclictest22531-21apt-get22:58:440
3162899501cyclictest22531-21apt-get22:58:440
3162899501cyclictest22531-21apt-get22:58:440
3162899501cyclictest17428-21apt-get22:48:440
3162899501cyclictest17428-21apt-get22:48:440
3162899501cyclictest17428-21apt-get22:48:440
3162899501cyclictest15789-21head22:44:010
3162899501cyclictest15789-21head22:44:010
3162899501cyclictest15789-21head22:44:010
31628995018cyclictest0-21swapper/023:49:560
31628995018cyclictest0-21swapper/023:49:560
31628995018cyclictest0-21swapper/023:49:560
31628995016cyclictest18889-21df20:23:460
31628995016cyclictest18889-21df20:23:460
31628995016cyclictest18889-21df20:23:460
3162899494cyclictest0-21swapper/022:53:580
3162899494cyclictest0-21swapper/022:53:580
3162899494cyclictest0-21swapper/022:53:580
3162899493cyclictest13323-21df20:03:460
3162899493cyclictest13323-21df20:03:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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