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2026-09-18 - 05:12
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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 Fri Sep 18, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502090,0irq/45-4a10000026082-21kworker/0:419:04:540
6769911482,0cyclictest1867-21fw_forwarded_lo20:45:150
6769910991,0cyclictest26910-21munin-run21:59:430
6769910972,0cyclictest5425-21chrt19:20:270
6769910885,0cyclictest30883-21fw_conntrack20:35:140
6769910871,0cyclictest5160-21/usr/sbin/munin22:30:100
6769910775,0cyclictest6537-21/usr/sbin/munin20:59:570
6769910775,0cyclictest10502-21chrt22:45:190
6769910772,0cyclictest868-21wget19:09:540
6769910769,0cyclictest27741-21cat23:35:280
6769910673,0cyclictest19176-21ntpq21:35:280
6769910672,0cyclictest1373-21wc23:54:460
6769910582,0cyclictest20664-21fw_forwarded_lo23:15:130
6769910582,0cyclictest12177-21irqstats19:40:220
6769910581,0cyclictest17442-21ntpdc21:30:270
6769910581,0cyclictest12027-21diskstats00:25:080
6769910571,0cyclictest24061-21ls20:15:160
6769910570,0cyclictest5643-21sendmail_mailst20:55:330
6769910570,0cyclictest30153-21runrttasks23:43:130
6769910569,0cyclictest3634-21irqstats20:50:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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