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2026-03-12 - 01:04
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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 Mar 11, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501940,0irq/46-4a10000028430-21runrttasks07:02:540
289509910673,0cyclictest0-21swapper07:32:020
289509910165,0cyclictest0-21swapper10:31:510
289509910082,0cyclictest9472-21/usr/sbin/munin12:27:140
28950999979,0cyclictest15019-21/usr/sbin/munin07:57:410
28950999978,0cyclictest1296-21modprobe08:52:380
28950999974,0cyclictest0-21swapper08:42:000
28950999878,0cyclictest28461-21irqstats10:12:260
28950999872,0cyclictest20077-21grep11:22:380
28950999780,0cyclictest28673-21/usr/sbin/munin11:47:420
28950999779,0cyclictest23033-21df08:22:060
28950999778,0cyclictest21338-21/usr/sbin/munin08:17:090
28950999776,0cyclictest32444-21/usr/sbin/munin10:22:480
28950999774,0cyclictest31906-21irqstats11:57:280
28950999679,0cyclictest24832-21diskstats08:27:120
28950999679,0cyclictest11335-21fw_forwarded_lo07:47:380
28950999678,0cyclictest460-21snmpd11:42:420
28950999678,0cyclictest1746-1kworker/u3:212:07:560
28950999675,0cyclictest7331-21munin-run10:46:510
28950999674,0cyclictest31961-21meminfo08:47:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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