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2025-11-16 - 12:33
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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 Sun Nov 16, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2115321420,3sleep0337699cyclictest23:16:470
1501821390,5sleep0337699cyclictest23:45:170
1773911200,8ptp4l21546-21kworker/3:120:09:543
3395998470,6cyclictest41-21ksoftirqd/300:09:113
55972700,1sleep30-21swapper/322:23:593
3395996756,5cyclictest41-21ksoftirqd/300:44:143
19652670,2sleep10-21swapper/120:09:171
200762660,2sleep00-21swapper/020:44:190
3395996451,7cyclictest41-21ksoftirqd/321:04:083
31392604,44sleep00-21swapper/020:12:120
3395995944,8cyclictest41-21ksoftirqd/300:39:143
177391590,1ptp4l401ktimersoftd/323:50:013
3395995846,6cyclictest41-21ksoftirqd/301:29:163
177391580,1ptp4l401ktimersoftd/323:06:573
3383995621,11cyclictest25-21ksoftirqd/101:34:351
337699564,26cyclictest17671-21sed01:39:240
296302560,2sleep30-21swapper/322:14:113
177391560,1ptp4l401ktimersoftd/322:26:463
3395995446,4cyclictest41-21ksoftirqd/323:09:113
3383995427,7cyclictest25-21ksoftirqd/100:39:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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