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2026-05-12 - 19:43
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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 May 12, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502660,0irq/46-4a10000029359-1kworker/u3:107:02:060
30972999972,0cyclictest10029-21irqstats12:20:030
30972999970,0cyclictest14827-21sed09:24:450
30972999879,0cyclictest1584-21/usr/sbin/munin07:10:320
30972999778,0cyclictest1361-21cut11:54:540
30972999676,0cyclictest28654-21fschecks_time08:29:540
30972999674,0cyclictest7340-21runrttasks12:11:570
30972999670,0cyclictest217-21lighttpd07:31:140
30972999574,0cyclictest24431-21runrttasks09:52:090
30972999574,0cyclictest12636-21runrttasks12:28:240
30972999567,0cyclictest702-1kworker/u3:211:54:230
30972999475,0cyclictest26759-21/usr/sbin/munin11:34:420
30972999371,0cyclictest29387-21runrttasks11:40:350
30972999371,0cyclictest17829-21runrttasks07:59:110
30972999370,0cyclictest22651-21runrttasks11:21:240
30972999358,0cyclictest0-21swapper08:05:010
30972999273,0cyclictest32414-21seq10:15:170
30972999268,0cyclictest16556-21df_abs09:29:460
30972999266,0cyclictest22158-1kworker/u3:109:45:180
30972999172,0cyclictest3958-21seq12:02:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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