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2025-12-08 - 19:34
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 20 highest latencies:
System rack5slot7.osadl.org (updated Mon Dec 08, 2025 12:44:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30706224410,13sleep028054-1kworker/u3:005:35:430
317119910235,52cyclictest1399-21/usr/sbin/munin10:06:440
317119910218,43cyclictest20020-21df_inode09:21:030
317119910214,67cyclictest31917-21sshd08:16:090
317119910211,26cyclictest29038-21ssh09:50:160
317119910210,26cyclictest32025-21ssh09:59:400
317119910119,22cyclictest25974-21/usr/sbin/munin07:56:370
317119910114,24cyclictest23130-21df09:30:530
317119910110,27cyclictest27581-21ssh09:45:420
317119910018,44cyclictest3703-21munin-run08:30:100
317119910016,51cyclictest0-21swapper08:34:160
317119910010,50cyclictest6279-21ssh08:36:490
31711999927,53cyclictest0-21swapper10:12:130
31711999916,47cyclictest24355-21ssh09:35:210
31711999915,64cyclictest12852-21irqstats10:41:170
31711999915,21cyclictest22585-21ssh07:45:520
31711999913,62cyclictest19440-21ssh09:19:230
31711999912,67cyclictest13997-21ntp_states07:01:080
31711999912,50cyclictest14714-21ssh09:04:540
31711999912,26cyclictest12076-21if_eth008:56:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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