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2024-02-24 - 16:51
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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 10 highest latencies:
System rackbslot7 (updated Sat Feb 24, 2024 12:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
862921760,16sleep30-21swapper/307:05:093
862921760,16sleep30-21swapper/307:05:093
92249910433,36cyclictest19953-21/usr/sbin/munin09:14:460
9224999729,37cyclictest1930-21/usr/sbin/munin08:24:150
9224999533,37cyclictest1191-21taskset11:37:040
9224999533,37cyclictest1191-21taskset11:37:040
9224999340,21cyclictest0-21swapper/011:14:360
9224999337,22cyclictest6918-21/usr/sbin/munin10:49:360
9224999247,33cyclictest9229-21latency_hist07:09:170
9224999247,33cyclictest9229-21latency_hist07:09:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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