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2026-03-14 - 13:52
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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 Sat Mar 14, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502340,0irq/46-4a1000004285-1kworker/u3:007:01:490
6904999857,0cyclictest0-21swapper11:42:210
6904999561,0cyclictest0-21swapper08:36:550
6904999360,0cyclictest0-21swapper08:42:160
6904999359,0cyclictest0-21swapper11:32:370
7450920,0irq/46-4a100000460-21snmpd10:21:560
6904999069,0cyclictest0-21swapper10:02:370
6904999057,0cyclictest0-21swapper11:57:390
6904999057,0cyclictest0-21swapper08:57:200
6904999056,0cyclictest0-21swapper07:47:410
7350890,0irq/45-4a10000021147-1kworker/u3:212:36:020
6904998957,0cyclictest0-21swapper09:37:330
6904998956,0cyclictest0-21swapper08:07:380
6904998956,0cyclictest0-21swapper07:17:230
7350880,0irq/45-4a10000016003-1kworker/u3:110:43:540
6904998867,0cyclictest0-21swapper10:52:360
6904998855,0cyclictest0-21swapper10:07:390
6904998855,0cyclictest0-21swapper07:36:580
6904998854,0cyclictest0-21swapper09:32:120
6904998755,0cyclictest0-21swapper07:42:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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