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2026-04-17 - 12:22
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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 Fri Apr 17, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502090,0irq/45-4a1000009001-21kworker/0:319:00:310
296579912842,0cyclictest23561-21/usr/sbin/munin20:21:260
296579912636,0cyclictest17931-21runrttasks20:06:020
296579912612,0cyclictest31325-21df23:55:420
296579912555,0cyclictest7350irq/45-4a10000022:50:530
296579912434,0cyclictest11663-21runrttasks21:21:270
296579912337,0cyclictest15059-21/usr/sbin/munin23:06:250
296579912332,0cyclictest4380-21memory22:36:110
296579912136,0cyclictest31652-21kernelversion22:21:080
296579912133,0cyclictest5987-21kernelversion21:06:040
296579912132,0cyclictest7641-21idleruntime22:46:010
296579912130,0cyclictest27841-21chrt20:35:410
296579912128,0cyclictest16240-21seq20:01:040
296579912036,0cyclictest19729-21/usr/sbin/munin21:46:100
296579912031,0cyclictest30001-21runrttasks22:16:080
296579912030,0cyclictest20540-21chrt20:14:160
296579911941,0cyclictest0-21swapper20:54:410
296579911940,0cyclictest11642-21/usr/sbin/munin19:46:260
296579911939,0cyclictest30070-21df_inode19:05:480
296579911931,0cyclictest27169-21runrttasks20:32:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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