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2024-04-19 - 03:50
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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 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134512280246,22sleep10-21swapper/119:07:241
134022275213,50sleep00-21swapper/019:06:590
134632263229,21sleep30-21swapper/319:07:343
135042261226,22sleep20-21swapper/219:08:052
14432690,0sleep30-21swapper/322:19:583
12542630,0sleep30-21swapper/319:50:133
42482600,1sleep30-21swapper/321:58:313
3982600,0sleep20-21swapper/221:30:442
105872590,0sleep20-21swapper/222:25:262
32002190,0sleep20-21swapper/219:55:102
287682170,0sleep00-21swapper/022:15:180
80172150,0sleep30-21swapper/322:00:243
73032140,0sleep00-21swapper/022:23:590
43812130,0sleep20-21swapper/221:58:392
205512120,0sleep10-21swapper/100:35:111
1376599122,4cyclictest19116-21gdbus20:25:000
1377699107,2cyclictest34-21ksoftirqd/300:00:003
1377099105,3cyclictest19982-21systemd-journal20:58:271
32133290,0sleep10-21swapper/122:41:221
28561290,0sleep30-21swapper/321:28:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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