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2026-05-26 - 15:06
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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 Tue May 26, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74509830,0irq/46-4a10000016004-1kworker/u3:106:59:480
567629916,0sleep05690-21/usr/sbin/munin08:04:420
17255999559,0cyclictest0-21swapper09:44:200
17255999259,0cyclictest0-21swapper10:09:310
17255999258,0cyclictest0-21swapper10:29:420
17255999159,0cyclictest0-21swapper07:44:400
17255999158,0cyclictest0-21swapper07:54:380
17255999156,0cyclictest0-21swapper10:14:140
17255999057,0cyclictest0-21swapper09:49:310
17255999057,0cyclictest0-21swapper08:19:480
17255998959,0cyclictest0-21swapper07:09:060
17255998957,0cyclictest0-21swapper08:54:460
17255998957,0cyclictest0-21swapper08:39:460
7350880,0irq/45-4a10000028391-1kworker/u3:207:41:570
17255998856,0cyclictest0-21swapper07:24:400
17255998855,0cyclictest0-21swapper07:29:280
17255998854,0cyclictest0-21swapper10:54:350
17255998767,0cyclictest0-21swapper07:34:440
17255998755,0cyclictest0-21swapper08:49:430
17255998755,0cyclictest0-21swapper07:49:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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