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2025-07-07 - 05:24
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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 Mon Jul 07, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
299702306272,21sleep20-21swapper/219:08:092
299162278244,22sleep10-21swapper/119:07:271
300492266232,21sleep30-21swapper/319:09:103
300262258224,22sleep00-21swapper/019:08:500
47372560,0sleep00-21swapper/020:35:150
271462560,0sleep00-21swapper/022:02:210
220432550,0sleep20-21swapper/222:46:562
216602530,0sleep00-21swapper/000:00:160
169852490,0sleep00-21swapper/000:22:280
230222210,0sleep10-21swapper/123:12:291
89702180,0sleep10-21swapper/119:30:221
233822170,0sleep20-21swapper/200:01:082
21222160,0sleep20-21swapper/200:10:162
145302160,0sleep10-21swapper/122:17:161
299972140,0sleep00-21swapper/020:20:140
218382140,0sleep00-21swapper/022:46:420
212152140,0sleep20-21swapper/221:34:272
3023499103,6cyclictest0-21swapper/321:45:013
3022399103,4cyclictest4156-21awk20:35:000
214892100,0sleep10-21swapper/100:27:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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