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2026-08-03 - 00:32
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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 10 highest latencies:
System rack4slot2.osadl.org (updated Sun Aug 02, 2026 12:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502470,0irq/45-4a10000015762-21kworker/0:007:04:020
258369910875,0cyclictest0-21swapper10:54:150
258369910473,0cyclictest0-21swapper10:48:260
258369910182,0cyclictest11075-21/usr/sbin/munin07:59:090
258369910179,0cyclictest518-21irqstats10:38:550
258369910174,0cyclictest16457-1kworker/u3:211:24:470
258369910082,0cyclictest32691-21df_inode12:13:360
25836999982,0cyclictest3312-21sendmail-msp07:38:490
25836999981,0cyclictest22345-21/usr/sbin/munin10:08:220
25836999880,0cyclictest14541-21sendmail_mailtr09:44:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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