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2024-11-22 - 17:10
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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 rack5slot2.osadl.org (updated Fri Nov 22, 2024 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
128822195178,12sleep30-21swapper/307:05:483
130042194178,11sleep10-21swapper/107:07:241
128742187171,12sleep00-21swapper/007:05:420
13106211186,20sleep20-21swapper/207:08:402
33752480,0sleep20-21swapper/209:22:282
115242450,0sleep10-21swapper/111:04:041
167962390,0sleep10-21swapper/110:18:191
50462150,0sleep10-21swapper/112:05:201
319452100,0sleep2301ktimersoftd/209:36:202
1340099103,3cyclictest13062-21munin-run11:05:010
2706290,0sleep10-21swapper/110:27:131
24672280,0sleep10-21swapper/110:05:351
134009970,7cyclictest0-21swapper/009:05:140
134009970,6cyclictest5773-21ntp_states09:00:160
25720260,0sleep325723-21pmu-power07:30:193
25720260,0sleep325723-21pmu-power07:30:183
134149960,5cyclictest14620-21apt-get08:15:013
134009962,4cyclictest0-21swapper/010:41:490
134009962,4cyclictest0-21swapper/009:44:300
134009962,4cyclictest0-21swapper/009:14:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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