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2025-12-01 - 05:51
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rack1slot3.osadl.org (updated Mon Dec 01, 2025 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
197301099140,12cyclictest0-21swapper/319:40:133
1973010991312,0cyclictest0-21swapper/321:40:013
1973010991310,2cyclictest0-21swapper/323:25:133
197301099130,12cyclictest0-21swapper/323:50:133
197301099130,12cyclictest0-21swapper/322:15:143
197301099130,12cyclictest0-21swapper/321:45:133
1973010991211,0cyclictest0-21swapper/322:00:133
1973010991210,1cyclictest0-21swapper/300:20:113
197301099120,11cyclictest0-21swapper/323:40:183
197301099120,11cyclictest0-21swapper/323:10:203
197301099120,11cyclictest0-21swapper/323:05:153
197301099120,11cyclictest0-21swapper/320:10:153
197301099112,8cyclictest69450irq/121-eno121:13:253
1973010991111,0cyclictest0-21swapper/322:50:153
1973010991111,0cyclictest0-21swapper/322:25:023
1973010991110,0cyclictest0-21swapper/300:35:243
197301099110,11cyclictest0-21swapper/323:20:123
197301099110,10cyclictest69450irq/121-eno123:55:213
197301099110,10cyclictest69450irq/121-eno100:25:413
197301099110,10cyclictest0-21swapper/322:40:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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