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2025-11-26 - 14:35
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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 Nov 26, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1589723110,3sleep00-21swapper/020:14:490
3269821560,5sleep11700599cyclictest01:14:511
177391980,4ptp4l401ktimersoftd/320:17:223
85042840,3sleep0101ktimersoftd/021:04:500
198322830,4sleep219834-21gltestperf21:29:452
44282640,3sleep20-21swapper/200:04:462
251562620,3sleep30-21swapper/301:44:523
224232570,2sleep20-21swapper/200:24:532
1687025635,9sleep10-21swapper/120:19:031
240452520,1sleep224043-21sh01:43:422
1700599522,13cyclictest25165-21sed01:05:031
1700599522,13cyclictest25165-21sed01:05:031
314092510,2sleep00-21swapper/001:13:450
314092510,2sleep00-21swapper/001:13:450
1700599502,13cyclictest23396-21taskset23:09:561
10752500,2sleep30-21swapper/300:38:473
167412494,32sleep20-21swapper/220:17:232
127722490,1sleep30-21swapper/321:14:453
22032440,19sleep2321ktimersoftd/200:39:472
1700599441,18cyclictest20218-21/usr/sbin/munin20:24:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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