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2025-12-14 - 16:46
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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 Dec 14, 2025 00:53:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71730rcu_preempt0-21swapper/023:54:180
71720rcu_preempt0-21swapper/121:11:361
71720rcu_preempt0-21swapper/022:51:000
71720rcu_preempt0-21swapper/022:51:000
71700rcu_preempt0-21swapper/223:46:422
71700rcu_preempt0-21swapper/223:46:422
71700rcu_preempt0-21swapper/021:29:070
71700rcu_preempt0-21swapper/021:29:070
71680rcu_preempt0-21swapper/322:20:433
71680rcu_preempt0-21swapper/322:20:433
71670rcu_preempt0-21swapper/223:37:402
71670rcu_preempt0-21swapper/223:37:402
71660rcu_preempt0-21swapper/200:08:052
71660rcu_preempt0-21swapper/200:08:052
71660rcu_preempt0-21swapper/021:33:350
71660rcu_preempt0-21swapper/021:33:350
71640rcu_preempt0-21swapper/023:42:240
71620rcu_preempt0-21swapper/021:37:590
71620rcu_preempt0-21swapper/021:37:590
71620rcu_preempt0-21swapper/021:37:590
71610rcu_preempt0-21swapper/223:56:412
71610rcu_preempt0-21swapper/223:56:412
71610rcu_preempt0-21swapper/023:03:470
71580rcu_preempt0-21swapper/223:30:552
71570rcu_preempt0-21swapper/200:22:282
71570rcu_preempt0-21swapper/200:22:282
16974995610cyclictest4237-21apt-get23:35:130
16974995610cyclictest4237-21apt-get23:35:130
1697499552cyclictest14097-21/usr/sbin/munin22:00:170
1697499552cyclictest14097-21/usr/sbin/munin22:00:170
1697499531cyclictest1959-21runrttasks22:14:450
1697499531cyclictest1959-21runrttasks22:14:450
1697499522cyclictest22545-21apt-get22:15:140
1697499522cyclictest22545-21apt-get22:15:140
1697499522cyclictest22545-21apt-get22:15:140
16974995210cyclictest31742sleep021:40:380
16974995210cyclictest31742sleep021:40:380
1697499514cyclictest0-21swapper/023:30:140
1697499513cyclictest9961-21apt-get20:45:150
1697499513cyclictest0-21swapper/022:05:290
1697499513cyclictest0-21swapper/022:05:290
1697499511cyclictest22810-21apt-get21:20:140
1697499511cyclictest22810-21apt-get21:20:140
71500rcu_preempt0-21swapper/000:40:470
71500rcu_preempt0-21swapper/000:40:470
71500rcu_preempt0-21swapper/000:40:470
1697499504cyclictest0-21swapper/023:22:160
1697499504cyclictest0-21swapper/023:22:160
1697499503cyclictest0-21swapper/023:15:220
1697499503cyclictest0-21swapper/023:15:220
1697499502cyclictest9392-21munin-run00:40:030
1697499502cyclictest9392-21munin-run00:40:030
1697499502cyclictest3009-21apt-get20:20:120
1697499502cyclictest22124-21apt-get23:10:130
1697499502cyclictest22124-21apt-get23:10:130
16974995017cyclictest0-21swapper/021:05:270
1697499494cyclictest0-21swapper/022:27:360
1697499494cyclictest0-21swapper/022:27:360
1697499493cyclictest12954-21diskstats20:55:180
1697499493cyclictest12954-21diskstats20:55:180
1697499493cyclictest0-21swapper/022:31:490
1697499493cyclictest0-21swapper/022:31:490
1697499493cyclictest0-21swapper/019:55:170
1697499493cyclictest0-21swapper/019:55:170
1697499492cyclictest25935-21diskstats19:45:190
1697499492cyclictest25935-21diskstats19:45:190
1697499492cyclictest13397-21apt-get22:55:130
1697499492cyclictest13397-21apt-get22:55:130
1697499491cyclictest7849-21diskstats22:45:180
1697499491cyclictest21542-21apt-get19:30:120
16974994918cyclictest0-21swapper/000:23:110
16974994918cyclictest0-21swapper/000:23:110
16974994917cyclictest10627-21ntp_states23:45:280
16974994917cyclictest10627-21ntp_states23:45:280
16974994912cyclictest4398-21/usr/sbin/munin20:25:260
16974994912cyclictest4398-21/usr/sbin/munin20:25:260
1697499484cyclictest0-21swapper/021:10:070
1697499483cyclictest0-21swapper/021:55:210
1697499483cyclictest0-21swapper/021:55:210
1697499483cyclictest0-21swapper/000:34:150
1697499483cyclictest0-21swapper/000:34:150
1697499482cyclictest829-21apt-get00:25:130
1697499482cyclictest25927-21memory22:20:240
1697499482cyclictest25927-21memory22:20:240
1697499482cyclictest19564-21irqstats23:05:210
1697499482cyclictest19564-21irqstats23:05:210
1697499482cyclictest14113-21munin-node21:00:120
1697499482cyclictest14113-21munin-node21:00:120
1697499481cyclictest4701-21apt-get22:40:150
1697499481cyclictest4701-21apt-get22:40:150
1697499481cyclictest24320-21apt-get19:40:130
16974994813cyclictest16119-21diskstats23:55:200
16974994813cyclictest16119-21diskstats23:55:200
1697499474cyclictest0-21swapper/021:18:290
1697499474cyclictest0-21swapper/021:18:290
1697499474cyclictest0-21swapper/019:40:020
1697499474cyclictest0-21swapper/019:40:020
1697499474cyclictest0-21swapper/000:16:350
1697499474cyclictest0-21swapper/000:16:350
1697499474cyclictest0-21swapper/000:16:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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