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2025-11-29 - 03:48
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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 Sat Nov 29, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1773911030,4ptp4l401ktimersoftd/320:20:083
177391960,1ptp4l401ktimersoftd/322:36:383
242752690,4sleep2848899cyclictest01:08:322
8488996654,7cyclictest33-21ksoftirqd/223:11:232
8488996352,5cyclictest33-21ksoftirqd/200:56:262
8488996149,5cyclictest33-21ksoftirqd/221:16:202
8488996047,6cyclictest33-21ksoftirqd/220:26:192
8488995848,5cyclictest33-21ksoftirqd/222:36:212
82982584,10sleep20-21swapper/220:20:112
177391580,1ptp4l401ktimersoftd/321:28:083
8488995746,6cyclictest33-21ksoftirqd/222:46:242
177391570,1ptp4l401ktimersoftd/322:48:143
8488995631,3cyclictest33-21ksoftirqd/222:31:232
177391560,1ptp4l401ktimersoftd/301:12:493
8488995524,4cyclictest33-21ksoftirqd/200:16:122
135642550,2sleep30-21swapper/322:33:283
8488995442,7cyclictest33-21ksoftirqd/221:41:232
8488995341,6cyclictest33-21ksoftirqd/220:51:172
275362510,1sleep10-21swapper/100:01:261
8488995025,7cyclictest33-21ksoftirqd/200:01:352
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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