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2023-10-03 - 22:19
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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 rack0slot7.osadl.org (updated Tue Oct 03, 2023 00:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1567842199182,9sleep20-21swapper/219:06:058
1569652198181,9sleep10-21swapper/119:08:121
1570602196179,9sleep110-21swapper/1119:09:273
1570362196179,8sleep100-21swapper/1019:09:102
1568892195177,10sleep30-21swapper/319:07:269
1569862191130,51sleep140-21swapper/1419:08:256
1458372191185,3sleep60-21swapper/619:05:2112
1568932190153,27sleep50-21swapper/519:07:2811
1569892187160,19sleep00-21swapper/019:08:270
1568322175156,10sleep80-21swapper/819:06:4314
1567722173155,9sleep70-21swapper/719:05:5413
1568382171153,10sleep120-21swapper/1219:06:474
1570472170151,10sleep40-21swapper/419:09:2010
1570582168149,11sleep90-21swapper/919:09:2515
1570622165147,10sleep130-21swapper/1319:09:295
1569622126107,9sleep150-21swapper/1519:08:107
15753099780,13cyclictest0-21swapper/1522:20:327
157478997837,21cyclictest0-21swapper/121:28:501
15753099700,11cyclictest0-21swapper/1521:40:587
15753099600,0cyclictest0-21swapper/1523:10:037
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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