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2026-08-05 - 07:36
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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 Aug 05, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745013070,0irq/46-4a1000006194-1kworker/u3:119:04:130
306929915,0sleep03072-21df_inode20:28:240
1064929711,0sleep010678-21users23:59:160
7450950,0irq/46-4a100000941-21sendmail-msp21:58:550
7450950,0irq/46-4a10000010245-21nfs4_client22:23:480
7450940,0irq/46-4a10000024884-21sendmail-msp19:58:040
7450940,0irq/46-4a10000014033-21sed00:09:030
7450930,0irq/46-4a1000008356-21/usr/sbin/munin20:43:320
7450930,0irq/46-4a1000006459-21diskstats23:48:250
7450930,0irq/46-4a1000004546-21/usr/sbin/munin20:33:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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