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2026-06-03 - 13:26
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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 Wed Jun 03, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502760,0irq/46-4a10000012-21ksoftirqd/019:02:550
193819912942,0cyclictest24008-21/usr/sbin/munin00:08:480
193819912830,0cyclictest22925-21ntp_kernel_err22:29:210
193819912629,0cyclictest5663-21runrttasks21:39:080
193819912531,0cyclictest21985-21seq20:52:300
193819912529,0cyclictest26715-21unixbench_singl22:39:330
193819912431,0cyclictest28733-21chrt00:21:300
193819912429,0cyclictest31905-21users22:54:410
193819912429,0cyclictest28072-21grep19:34:190
193819912333,0cyclictest9219-21memory20:14:180
193819912330,0cyclictest32257-21chrt21:22:300
193819912330,0cyclictest10526-21expr21:53:510
193819912252,0cyclictest0-21swapper20:02:150
193819912239,0cyclictest0-21swapper22:13:090
193819912232,0cyclictest21243-21ntpq22:24:220
193819912232,0cyclictest12704-21ntp_offset20:24:250
193819912231,0cyclictest18729-21awk20:43:350
193819912230,0cyclictest9333-21/usr/sbin/munin23:24:250
193819912230,0cyclictest22889-21memory20:54:190
193819912230,0cyclictest16614-21chrt20:35:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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