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2025-12-10 - 22:40
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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 rackbslot6.osadl.org (updated Wed Dec 10, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2718721610,5sleep01217099cyclictest12:18:070
2047321480,5sleep11217699cyclictest08:42:451
1773911010,4ptp4l401ktimersoftd/308:25:323
290782700,2sleep20-21swapper/211:37:542
12176996810,20cyclictest2028-21latency10:17:531
1217699661,27cyclictest27360-21ssh11:36:381
1217699640,31cyclictest11237-21/usr/sbin/munin10:33:051
1217699640,28cyclictest13654-21proc_pri11:17:551
119832649,13sleep1241ktimersoftd/108:26:191
1217699630,31cyclictest1433-21/usr/sbin/munin13:07:561
1217699630,25cyclictest4654-21ssh13:12:431
1217699611,26cyclictest7133-21ssh13:53:351
47982600,2sleep04800-21latency_hist13:52:370
1217699601,25cyclictest32047-21taskset13:05:421
1217699591,24cyclictest26067-21taskset10:02:241
1217699590,32cyclictest11459-21ssh11:16:111
1217699590,26cyclictest18772-21taskset11:25:131
265462580,2sleep026549-21wc10:53:030
1217699580,24cyclictest31877-21sh12:25:131
1217699561,23cyclictest12389-21sh13:22:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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