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2026-04-09 - 21:53
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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 Thu Apr 09, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745013000,0irq/46-4a10000020671-1kworker/u3:007:03:350
21128999655,0cyclictest0-21swapper08:41:230
212582957,0sleep021291-21wget07:05:560
7450940,0irq/46-4a1000001872-21chrt10:51:200
21128999471,0cyclictest0-21swapper08:10:550
7450910,0irq/46-4a10000024216-21ntpq11:56:300
7450910,0irq/46-4a10000012314-21proc_pri09:46:320
7350910,0irq/45-4a10000028033-1kworker/u3:212:10:120
7350910,0irq/45-4a10000010147-21sed08:06:050
21128999157,0cyclictest0-21swapper11:46:350
21128999156,0cyclictest0-21swapper08:55:570
7450900,0irq/46-4a1000007552-21awk07:56:480
7450900,0irq/46-4a100000460-21snmpd09:52:450
7450900,0irq/46-4a1000003955-21ls07:46:390
7450900,0irq/46-4a10000032313-21df_abs10:46:010
7450900,0irq/46-4a10000031238-21cat12:16:380
7450900,0irq/46-4a10000029895-1kworker/u3:009:07:140
7450900,0irq/46-4a10000028071-1kworker/u3:010:33:370
7450900,0irq/46-4a10000026021-21proc_pri07:16:340
7450900,0irq/46-4a10000024164-1kworker/u3:010:21:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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