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2026-03-15 - 16:13
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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 rack4slot2.osadl.org (updated Sun Mar 15, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74503690,0irq/46-4a100000272672chrt07:02:440
27786999380,0cyclictest9386-21/usr/sbin/munin12:32:270
27786999359,0cyclictest0-21swapper08:32:140
27786999260,0cyclictest0-21swapper08:07:220
27786999259,0cyclictest0-21swapper08:02:320
27786999258,0cyclictest0-21swapper08:57:060
27786999159,0cyclictest0-21swapper07:32:110
27786999060,0cyclictest0-21swapper12:17:290
27786999058,0cyclictest0-21swapper09:12:400
27786999056,0cyclictest0-21swapper07:52:410
27786998973,0cyclictest7511-21if_eth007:42:160
27786998962,0cyclictest0-21swapper11:47:330
27786998961,0cyclictest23988-21munin-run11:41:420
27786998958,0cyclictest0-21swapper10:56:530
27786998956,0cyclictest0-21swapper08:52:070
27786998867,0cyclictest0-21swapper11:17:070
27786998859,0cyclictest0-21swapper12:31:120
27786998859,0cyclictest0-21swapper10:12:030
27786998857,0cyclictest0-21swapper10:30:520
27786998857,0cyclictest0-21swapper09:07:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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