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2024-04-26 - 15:48
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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: ondemand
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack8slot7.osadl.org (updated Fri Apr 26, 2024 12:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1303099260,1cyclictest23066-21x2gosqlitewrapp08:21:361
1303099200,20cyclictest0-21swapper/110:14:161
13029992019,1cyclictest8344-21ssh09:29:200
13030991918,1cyclictest28543-21kworker/1:010:46:231
1303099190,19cyclictest0-21swapper/111:08:361
1302999190,1cyclictest0-21swapper/010:53:200
1302999180,18cyclictest0-21swapper/011:34:260
1302999180,18cyclictest0-21swapper/009:51:210
1303099170,1cyclictest0-21swapper/110:01:011
13029991716,1cyclictest0-21swapper/011:28:220
13030991615,1cyclictest0-21swapper/112:34:261
13029991615,1cyclictest0-21swapper/010:35:350
1302999150,0cyclictest0-21swapper/011:07:410
13030991411,1cyclictest15764-21diskmemload09:26:581
13029991413,1cyclictest0-21swapper/010:47:200
1303099135,2cyclictest15764-21diskmemload11:24:191
13030991312,1cyclictest0-21swapper/109:19:241
13029991312,1cyclictest0-21swapper/010:41:260
1303099129,2cyclictest30448-21x2gosqlitewrapp07:39:181
1303099121,10cyclictest3830-21x2golistsession11:57:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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