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2026-06-10 - 14:21
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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 20 highest latencies:
System rackeslot4.osadl.org (updated Wed Jun 10, 2026 00:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3147013993937,1cyclictest3233198-21fwupd20:31:552
314700599320,5cyclictest3392296-21munin-node23:10:100
3147015993119,10cyclictest0-21swapper/321:15:003
314701599311,21cyclictest3217864-21sh20:20:003
314701599310,4cyclictest3428699-21irqcore23:45:163
3147005993028,1cyclictest3212744-21kworker/0:0+pm20:31:560
314701599281,22cyclictest3192816-21apt-get19:55:113
314701599280,20cyclictest0-21swapper/323:21:523
314701599280,19cyclictest0-21swapper/322:35:103
3147013992824,3cyclictest3192549-21sh19:55:012
314701599272,21cyclictest3249033-21apt-get20:50:133
3147015992718,2cyclictest3285014-21apt-get21:25:113
314701599271,21cyclictest3361482-21apt-get22:40:123
314701599270,2cyclictest0-21swapper/300:30:123
314700899270,26cyclictest3315229-21latency_hist21:55:011
314700899270,26cyclictest3315229-21latency_hist21:55:011
314701599262,21cyclictest3346265-21apt-get22:25:123
3147008992619,2cyclictest191rcu_preempt21:30:001
3147015992520,3cyclictest3223632-21apt-get20:25:113
3147015992518,2cyclictest64-21kcompactd023:34:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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