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2023-09-24 - 06:49
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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 Sun Sep 24, 2023 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
113632203188,10sleep10-21swapper/119:09:121
89702191174,12sleep00-21swapper/019:05:020
92032187170,12sleep30-21swapper/319:05:043
111082171154,13sleep20-21swapper/219:05:562
212742140,0sleep00-21swapper/022:59:100
1160399141,9cyclictest4991-21apt-get21:05:010
112782100,1sleep31161699cyclictest22:11:533
8180290,0sleep30-21swapper/323:10:303
31042280,0sleep10-21swapper/122:04:421
116169961,4cyclictest0-21swapper/319:25:203
116039960,3cyclictest29976-21cron19:45:010
116039960,3cyclictest13485-21awk23:35:000
9549250,0sleep30-21swapper/321:10:283
5175250,0sleep25176-21idleruntime-cro23:50:002
30038250,0sleep20-21swapper/220:50:002
116169950,5cyclictest0-21swapper/322:56:403
116169950,5cyclictest0-21swapper/322:49:143
116169950,5cyclictest0-21swapper/321:24:163
116169950,5cyclictest0-21swapper/319:20:263
116169950,4cyclictest18602-21perl20:25:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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