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2024-02-27 - 00:31
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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 Mon Feb 26, 2024 12:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26967992724,2cyclictest16787-21hddtemp_smartct11:30:250
26968992522,2cyclictest5207-21x2golistsession09:14:561
2696799251,2cyclictest31255-21diskmemload10:48:400
2696799210,1cyclictest31255-21diskmemload09:36:560
2696799210,1cyclictest0-21swapper/009:20:550
2696799200,20cyclictest0-21swapper/012:26:160
26968991918,1cyclictest0-21swapper/109:23:251
26967991918,1cyclictest0-21swapper/010:42:260
26967991817,1cyclictest0-21swapper/009:46:240
26967991716,1cyclictest0-21swapper/011:14:160
26968991615,1cyclictest0-21swapper/110:57:061
26967991513,1cyclictest31255-21diskmemload09:29:410
26967991512,2cyclictest29392-21x2gosqlitewrapp12:30:560
26967991411,2cyclictest9475-21x2gopath12:15:290
26968991312,1cyclictest0-21swapper/111:48:051
2696899131,10cyclictest31255-21diskmemload11:02:331
2696899121,4cyclictest1225-21x2golistsession12:09:391
2696899121,10cyclictest5646-21x2golistsession09:15:131
2696799129,2cyclictest8742-21x2golistsession07:32:400
26967991211,1cyclictest0-21swapper/012:38:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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