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2025-09-18 - 14:32
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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 Thu Sep 18, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2397621510,5sleep3366099cyclictest00:35:253
3074521450,3sleep2365699cyclictest21:42:362
1773911280,4ptp4l401ktimersoftd/319:40:593
108832740,3sleep3366099cyclictest21:56:383
228472730,3sleep3366099cyclictest23:21:383
228472730,3sleep3366099cyclictest23:21:383
3643996722,5cyclictest9-21ksoftirqd/022:01:160
20102674,49sleep00-21swapper/019:36:310
238462610,2sleep00-21swapper/023:58:080
3643996031,3cyclictest9-21ksoftirqd/023:16:300
264026038,8sleep10-21swapper/119:36:361
3649995728,4cyclictest25-21ksoftirqd/100:36:411
366099567,5cyclictest41-21ksoftirqd/322:31:403
3649995629,3cyclictest25-21ksoftirqd/100:31:191
3649995628,4cyclictest25-21ksoftirqd/100:16:191
3649995628,3cyclictest25-21ksoftirqd/123:16:181
3643995625,5cyclictest9-21ksoftirqd/000:46:390
266672560,3sleep1231rcuc/123:26:341
43982550,2sleep34399-21cat22:26:423
3649995527,4cyclictest25-21ksoftirqd/122:51:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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