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2026-03-22 - 23:14
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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 Sun Mar 22, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502480,0irq/46-4a10000018195-1kworker/u3:007:03:350
202239910787,0cyclictest12691-21df_inode11:26:470
202239910781,0cyclictest28502-21/usr/sbin/munin07:27:160
202239910684,0cyclictest4020-21cpu11:01:410
202239910682,0cyclictest16125-21diskstats11:36:480
202239910676,0cyclictest20799-21modprobe11:51:260
202239910579,0cyclictest23968-1kworker/u3:207:23:000
202239910574,0cyclictest24521-21/usr/sbin/munin07:16:390
202239910573,0cyclictest2611-21fw_packets09:21:580
202239910482,0cyclictest31516-21diskstats12:21:510
202239910482,0cyclictest24813-21fw_conntrack12:01:560
202239910481,0cyclictest21397-21users07:07:260
202239910481,0cyclictest12689-21diskstats09:51:490
202239910383,0cyclictest27779-21/usr/sbin/munin09:02:310
202239910381,0cyclictest29803-21diskstats12:16:480
202239910381,0cyclictest28220-21fw_conntrack12:11:570
202239910381,0cyclictest22224-21diskstats07:11:380
202239910380,0cyclictest30129-21ntpdc09:07:120
202239910378,0cyclictest31715-21irqstats10:47:050
202239910378,0cyclictest23709-21users08:47:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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