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2026-05-10 - 08:07
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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 May 10, 2026 00:44:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
447721140sleep346650irq/116-QMan10:48:553
447721140sleep346650irq/116-QMan10:48:553
447721140sleep346650irq/116-QMan10:48:553
71700rcu_preempt30385-21runrttasks20:42:490
71700rcu_preempt30385-21runrttasks20:42:490
71700rcu_preempt30385-21runrttasks20:42:490
540999643cyclictest0-21swapper/021:45:560
540999643cyclictest0-21swapper/021:45:560
540999643cyclictest0-21swapper/021:45:560
540999613cyclictest0-21swapper/021:50:150
540999613cyclictest0-21swapper/021:50:150
540999613cyclictest0-21swapper/021:50:150
540999612cyclictest8899-21sh22:16:180
540999612cyclictest8899-21sh22:16:180
540999612cyclictest8899-21sh22:16:180
540999612cyclictest0-21swapper/023:33:430
540999612cyclictest0-21swapper/023:33:430
540999612cyclictest0-21swapper/023:33:430
540999601cyclictest6305-21diskmemload23:28:410
540999601cyclictest6305-21diskmemload23:28:410
540999601cyclictest6305-21diskmemload23:28:410
540999572cyclictest8223-21sh00:13:320
540999572cyclictest8223-21sh00:13:320
71550rcu_preempt0-21swapper/121:42:571
71550rcu_preempt0-21swapper/121:42:571
71550rcu_preempt0-21swapper/121:42:571
540999551cyclictest12520-21sendmail-msp00:35:450
540999551cyclictest12520-21sendmail-msp00:35:450
540999543cyclictest0-21swapper/000:28:050
540999543cyclictest0-21swapper/000:28:050
540999543cyclictest0-21swapper/000:28:050
540999542cyclictest5476-1kworker/0:2H22:09:510
540999542cyclictest5476-1kworker/0:2H22:09:510
540999542cyclictest5476-1kworker/0:2H22:09:510
540999534cyclictest0-21swapper/000:03:000
540999534cyclictest0-21swapper/000:03:000
540999533cyclictest0-21swapper/019:33:140
540999533cyclictest0-21swapper/019:33:140
71520rcu_preempt0-21swapper/119:18:041
71520rcu_preempt0-21swapper/119:18:041
71520rcu_preempt0-21swapper/023:19:450
71520rcu_preempt0-21swapper/023:19:450
540999526cyclictest20622-21/usr/sbin/munin00:38:170
540999526cyclictest20622-21/usr/sbin/munin00:38:170
540999524cyclictest0-21swapper/023:47:020
540999524cyclictest0-21swapper/023:47:020
540999524cyclictest0-21swapper/022:18:220
540999524cyclictest0-21swapper/022:18:220
540999524cyclictest0-21swapper/021:26:570
540999524cyclictest0-21swapper/021:26:570
540999523cyclictest0-21swapper/023:48:090
540999523cyclictest0-21swapper/023:48:090
540999523cyclictest0-21swapper/022:38:120
540999523cyclictest0-21swapper/022:38:120
540999523cyclictest0-21swapper/022:28:190
540999523cyclictest0-21swapper/022:28:190
540999523cyclictest0-21swapper/022:28:190
540999523cyclictest0-21swapper/019:58:080
540999523cyclictest0-21swapper/019:58:080
540999523cyclictest0-21swapper/019:58:080
540999522cyclictest865-21ssh22:01:250
540999522cyclictest865-21ssh22:01:250
540999522cyclictest28552-21users20:33:160
540999522cyclictest28552-21users20:33:160
540999522cyclictest24287-21users22:43:150
540999522cyclictest24287-21users22:43:150
540999522cyclictest14150-21sh23:24:510
540999522cyclictest14150-21sh23:24:510
540999522cyclictest14150-21sh23:24:510
540999522cyclictest10127-21ntp_states19:28:110
540999522cyclictest10127-21ntp_states19:28:110
540999522cyclictest0-21swapper/021:33:450
540999522cyclictest0-21swapper/021:33:450
540999522cyclictest0-21swapper/021:33:450
540999522cyclictest0-21swapper/019:53:020
540999522cyclictest0-21swapper/019:53:020
540999522cyclictest0-21swapper/019:53:020
540999521cyclictest12516-21munin-run00:22:470
540999521cyclictest12516-21munin-run00:22:470
540999518cyclictest22472-21runrttasks21:41:290
540999518cyclictest22472-21runrttasks21:41:290
540999514cyclictest0-21swapper/021:18:010
540999514cyclictest0-21swapper/021:18:010
540999514cyclictest0-21swapper/021:06:090
540999514cyclictest0-21swapper/021:06:090
540999513cyclictest26309-21apt-get20:27:590
540999513cyclictest26309-21apt-get20:27:590
540999513cyclictest26309-21apt-get20:27:590
540999513cyclictest0-21swapper/023:13:550
540999513cyclictest0-21swapper/023:13:550
540999513cyclictest0-21swapper/023:12:380
540999513cyclictest0-21swapper/023:12:380
540999513cyclictest0-21swapper/023:12:380
540999513cyclictest0-21swapper/022:04:200
540999513cyclictest0-21swapper/022:04:200
540999513cyclictest0-21swapper/021:32:550
540999513cyclictest0-21swapper/020:48:580
540999513cyclictest0-21swapper/020:48:580
540999513cyclictest0-21swapper/020:13:130
540999513cyclictest0-21swapper/020:13:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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