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2026-04-08 - 05:06
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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 Wed Apr 08, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501780,0irq/46-4a10000016536-21/usr/sbin/munin19:01:280
174879910879,0cyclictest13404-21/usr/sbin/munin22:01:140
174879910079,0cyclictest20233-21/usr/sbin/munin22:21:140
17487999780,0cyclictest25345-21diskstats21:01:100
17487999777,0cyclictest6523-21df_inode20:06:100
17487999777,0cyclictest14269-21runrttasks23:37:410
17487999775,0cyclictest31765-21awk00:30:490
17487999681,0cyclictest2827-21/usr/sbin/munin19:56:350
17487999676,0cyclictest26764-21/usr/sbin/munin00:16:310
17487999676,0cyclictest20359-21fw_forwarded_lo20:46:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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