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2026-05-23 - 01:45
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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.osadl.org (updated Fri May 22, 2026 12:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
143269913470,58cyclictest21453-21diskmemload09:16:510
14332991313,86cyclictest23924-21ssh11:45:551
143269912860,11cyclictest0-21swapper/009:35:430
143329911743,37cyclictest0-21swapper/108:10:411
143329911183,22cyclictest0-21swapper/109:40:591
143399910856,10cyclictest17866-21sh11:35:542
143329910810,79cyclictest13395-21apt-get08:36:111
14332991043,28cyclictest25941-21seq07:35:271
14332991043,28cyclictest25941-21seq07:35:271
143399910042,21cyclictest5235-21cut09:26:382
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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