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2024-04-19 - 16:00
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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 rackaslot8.osadl.org (updated Fri Apr 19, 2024 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3832292257,23sleep10-21swapper/107:07:371
5032284248,22sleep30-21swapper/307:09:093
327282284215,22sleep20-21swapper/207:06:012
4932260225,23sleep00-21swapper/007:09:010
156442630,1sleep10-21swapper/107:40:121
227652600,0sleep00-21swapper/012:37:510
154922600,0sleep30-21swapper/312:05:113
195812590,0sleep10-21swapper/110:54:171
98242570,0sleep30-21swapper/309:25:133
23712560,0sleep00-21swapper/008:24:280
312202550,0sleep10-21swapper/109:42:581
156562180,0sleep10-21swapper/112:31:161
231882170,0sleep00-21swapper/010:30:180
57392150,0sleep20-21swapper/207:19:552
220752150,0sleep30-21swapper/312:10:153
125952130,0sleep00-21swapper/009:27:140
258412120,0sleep00-21swapper/010:05:120
100742120,0chrt0-21swapper/212:27:042
213962110,0sleep10-21swapper/112:35:531
7349995,3cyclictest19982-21systemd-journal10:29:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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