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2023-12-04 - 04:27
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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
Characteristics of the 20 highest latencies:
System rackcslot0.osadl.org (updated Mon Dec 04, 2023 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1291821790,6sleep102040799cyclictest00:05:272
1267921700,6sleep102040799cyclictest21:12:242
1053721700,3sleep52039899cyclictest22:00:1211
1444421670,5sleep02039199cyclictest21:51:330
173421360,6sleep122040999cyclictest21:23:404
3071921260,2sleep31-21systemd21:18:439
645121210,1sleep20-21swapper/222:40:008
1726421130,5sleep92040499cyclictest22:59:3815
197662110100,4sleep30-21swapper/319:07:419
197662110100,4sleep30-21swapper/319:07:419
19773210886,16sleep100-21swapper/1019:07:482
19773210886,16sleep100-21swapper/1019:07:482
662421070,7sleep132041099cyclictest00:10:195
2555621030,6sleep92040499cyclictest23:04:5915
19804210385,11sleep50-21swapper/519:08:1511
19804210385,11sleep50-21swapper/519:08:1511
2518121020,1sleep00-21swapper/022:20:270
1126121010,1sleep40-21swapper/422:45:0710
2410921000,1sleep40-21swapper/419:50:4410
53612980,1sleep50-21swapper/522:12:4611
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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