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2024-11-22 - 17:07
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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 rackeslot3.osadl.org (updated Fri Nov 22, 2024 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1075144997141,28cyclictest1119559-21kworker/1:109:30:161
1075144997127,21cyclictest1051756-1kworker/1:0H10:29:151
1075144996841,15cyclictest1051756-1kworker/1:0H09:50:111
1075144996744,22cyclictest1051756-1kworker/1:0H09:55:061
1075144996739,26cyclictest1164709-21kworker/1:012:05:141
107514499660,52cyclictest0-21swapper/110:45:141
1075144996538,15cyclictest1078774-21kworker/1:207:25:141
1075144996537,17cyclictest1092024-21kworker/1:008:10:131
107514499640,2cyclictest0-21swapper/109:05:161
1075144996361,1cyclictest0-21swapper/111:14:551
1075144996342,20cyclictest1051756-1kworker/1:0H07:15:201
1075144996239,15cyclictest1164709-21kworker/1:011:50:011
107514499620,1cyclictest0-21swapper/111:19:551
1075144996042,16cyclictest1051756-1kworker/1:0H10:12:111
1075144996041,17cyclictest1119559-21kworker/1:109:40:001
1075144996035,14cyclictest1101951-21kworker/1:108:40:131
1075144995944,14cyclictest1164709-21kworker/1:011:50:161
1075144995940,18cyclictest1144701-21kworker/1:011:05:141
1075144995939,18cyclictest1108233-21kworker/1:208:55:141
1075144995843,14cyclictest1159240-21kworker/1:211:40:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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