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2024-04-19 - 04:06
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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 rack0slot3.osadl.org (updated Fri Apr 19, 2024 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25437412412392,13sleep40-21swapper/419:08:5410
25437012365359,4sleep120-21swapper/1219:08:304
25435822357317,13sleep50-21swapper/519:07:0211
25436542351310,13sleep150-21swapper/1519:08:017
25435852349328,14sleep70-21swapper/719:07:0513
25436282348309,13sleep140-21swapper/1419:07:436
25435182343324,13sleep60-21swapper/619:06:1612
25438062340320,13sleep90-21swapper/919:09:4715
25434572340321,13sleep80-21swapper/819:05:2914
25435082339318,15sleep130-21swapper/1319:06:065
25435052334315,13sleep100-21swapper/1019:06:042
25435972332312,14sleep20-21swapper/219:07:158
25437892331310,14sleep110-21swapper/1119:09:343
25436872331312,13sleep30-21swapper/319:08:219
25436332331311,13sleep10-21swapper/119:07:481
25435722329309,13sleep00-21swapper/019:06:570
27688552710,0sleep50-21swapper/522:25:2411
28784502610,0sleep50-21swapper/523:33:5911
28018402550,0sleep00-21swapper/022:45:360
254404799391,13cyclictest0-21swapper/1319:37:445
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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