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2025-12-06 - 12:37
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 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 rack7slot8.osadl.org (updated Sat Dec 06, 2025 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24317221630,49sleep00-21swapper/019:09:580
243889915884,54cyclictest1801-21node23:48:280
243889915266,49cyclictest1424-21nginx23:58:310
243889914581,22cyclictest25029-21df_inode21:15:330
243889914379,46cyclictest17116-21cat22:50:280
243889914270,34cyclictest1356-21snmpd19:10:480
243889913966,21cyclictest1378-21diskstats19:45:200
243889913964,20cyclictest18379-21diskstats20:50:210
243889913964,19cyclictest28721-21/usr/sbin/munin19:25:210
243889913874,43cyclictest1424-21nginx22:36:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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