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2025-10-28 - 07:12
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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 rack5slot7.osadl.org (updated Tue Oct 28, 2025 00:44:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1700224010,13sleep032528-1kworker/u3:017:40:290
19299911021,25cyclictest9702-21munin-run20:37:130
19299910825,67cyclictest0-21swapper21:58:170
19299910517,48cyclictest31088-21df20:02:550
19299910226,67cyclictest0-21swapper20:54:410
19299910217,65cyclictest17983-21/usr/sbin/munin21:03:060
19299910215,66cyclictest27748-21munin-run21:32:110
19299910212,49cyclictest12760-21cat22:23:530
19299910131,56cyclictest0-21swapper22:41:570
19299910117,45cyclictest13351-21df20:48:020
19299910018,42cyclictest16800-21irqstats20:58:180
19299910014,48cyclictest27908-21ssh19:53:080
19299910012,69cyclictest26511-21ssh23:07:320
1929999920,58cyclictest3290-21apt-get20:17:350
1929999917,41cyclictest28334-21irqstats21:33:230
1929999916,61cyclictest25178-21ssh21:23:410
1929999915,64cyclictest6890-21df_inode20:28:080
1929999910,47cyclictest21245-21ssh22:50:170
1929999832,48cyclictest0-21swapper23:06:240
1929999827,63cyclictest0-21swapper21:49:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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