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2026-03-25 - 00:30
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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 rack7slot3.osadl.org (updated Tue Mar 24, 2026 12:44:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
301179925974cyclictest8589-21sh10:12:190
3011799257227cyclictest24873-21diskmemload09:18:190
3011799256230cyclictest1201-21diskmemload09:43:100
3011799256227cyclictest17324-21cpuspeed10:47:320
3011799255229cyclictest1542-21nfs4_client07:23:230
3011799255227cyclictest24988-21chrt09:07:380
3011799255227cyclictest19151-21runrttasks10:54:260
3011799255224cyclictest4043-21ssh09:53:420
3011799254230cyclictest8856-21chrt10:13:140
3011799254229cyclictest3221-21munin-run12:02:130
3011799254201cyclictest6923-21sendmail-msp12:17:150
3011799253221cyclictest24721-21ssh11:18:080
301179925272cyclictest19770-21ntpdc08:43:260
3011799252222cyclictest877-21chrt07:20:220
3011799252222cyclictest25677-21ssh11:22:190
3011799251227cyclictest14858-21sshd10:37:430
3011799251226cyclictest21503-21munin-node0
3011799251225cyclictest27959-21sh11:31:260
3011799251223cyclictest27203-21ssh09:17:160
3011799251222cyclictest356-21ssh11:50:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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