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2025-05-23 - 09:21
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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 50 highest latencies:
System rack1slot3.osadl.org (updated Fri May 23, 2025 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2239090991311,1cyclictest0-21swapper/319:10:113
223909099130,12cyclictest0-21swapper/320:40:133
223909099130,11cyclictest0-21swapper/323:05:153
223909099120,11cyclictest0-21swapper/323:50:143
223909099120,11cyclictest0-21swapper/321:42:203
223909099120,11cyclictest0-21swapper/319:40:163
223909099120,10cyclictest0-21swapper/320:50:133
223909099115,5cyclictest0-21swapper/320:25:153
223909099110,10cyclictest0-21swapper/323:35:203
223909099110,10cyclictest0-21swapper/322:00:173
223909099110,10cyclictest0-21swapper/319:50:143
223909099110,10cyclictest0-21swapper/300:15:203
223909099110,0cyclictest0-21swapper/322:45:203
223909099110,0cyclictest0-21swapper/322:30:143
223909099110,0cyclictest0-21swapper/321:15:193
223909099110,0cyclictest0-21swapper/321:04:553
223909099110,0cyclictest0-21swapper/320:55:163
223909099110,0cyclictest0-21swapper/320:25:013
223909099110,0cyclictest0-21swapper/320:05:123
223909099110,0cyclictest0-21swapper/319:45:123
223909099110,0cyclictest0-21swapper/300:20:163
2239090991010,0cyclictest0-21swapper/323:20:153
2239090991010,0cyclictest0-21swapper/322:05:183
223909099100,9cyclictest0-21swapper/321:30:133
223909099100,9cyclictest0-21swapper/320:35:123
223909099100,9cyclictest0-21swapper/320:15:203
223909099100,9cyclictest0-21swapper/319:15:183
223909099100,10cyclictest0-21swapper/322:55:013
223909099100,0cyclictest0-21swapper/320:10:123
223909099100,0cyclictest0-21swapper/320:00:193
223909099100,0cyclictest0-21swapper/300:05:013
22390909999,0cyclictest0-21swapper/322:56:203
22390909999,0cyclictest0-21swapper/322:10:123
22390909999,0cyclictest0-21swapper/321:05:153
22390909999,0cyclictest0-21swapper/319:55:153
22390909998,0cyclictest0-21swapper/323:40:123
22390909998,0cyclictest0-21swapper/319:35:173
22390909990,0cyclictest0-21swapper/322:17:013
22390909990,0cyclictest0-21swapper/320:35:013
22390909990,0cyclictest0-21swapper/319:30:013
22390909988,0cyclictest0-21swapper/323:50:013
22390909988,0cyclictest0-21swapper/322:20:133
22390909988,0cyclictest0-21swapper/321:20:133
22390909988,0cyclictest0-21swapper/321:10:193
22390909988,0cyclictest0-21swapper/300:05:153
22390909980,7cyclictest0-21swapper/320:45:123
22390909980,7cyclictest0-21swapper/300:30:133
22390909980,0cyclictest0-21swapper/323:25:233
2237274281,5sleep30-21swapper/319:05:133
22390909977,0cyclictest0-21swapper/323:34:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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