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2026-04-14 - 09:03
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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 Apr 14, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502350,0irq/46-4a10000025643-1kworker/u3:019:05:240
257819912743,0cyclictest0-21swapper22:23:160
257819912634,0cyclictest30354-21fw_forwarded_lo20:51:070
257819912541,0cyclictest3507-21/usr/sbin/munin21:06:350
257819912531,0cyclictest20724-21users20:21:370
257819912530,0cyclictest4591-21diskstats19:35:580
257819912529,0cyclictest30218-21entropy22:26:000
257819912437,0cyclictest2628-21aten_r4power_en22:40:460
257819912434,0cyclictest15411-21switchtime20:06:270
257819912433,0cyclictest25888-21runrttasks19:05:430
257819912431,0cyclictest20182-21irqstats21:56:140
257819912340,0cyclictest11551-21fschecks_time19:56:030
257819912334,0cyclictest4986-21ntp_kernel_pll_21:11:440
257819912334,0cyclictest25468-21ntp_states22:11:240
257819912330,0cyclictest17385-21chrt21:47:140
257819912330,0cyclictest10234-21which23:01:280
257819912329,0cyclictest2917-21grep19:31:000
257819912239,0cyclictest12-21ksoftirqd/021:30:540
257819912233,0cyclictest10621-21runrttasks19:52:500
257819912231,0cyclictest5138-21run-parts22:46:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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