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2026-05-30 - 20:43
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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 Sat May 30, 2026 12:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9587213390,24sleep20-21swapper/206:55:472
907121358,93sleep19111-21cstates06:55:261
10476991263,38cyclictest12375-21fschecks_count07:05:150
10476991154,34cyclictest352-21runrttasks10:16:070
10476991154,34cyclictest352-21runrttasks10:16:070
104809911237,41cyclictest20548-21sh10:52:131
104769910947,16cyclictest24739-21unixbench_multi09:10:450
1020921056,16sleep00-21swapper/006:58:310
104809910465,33cyclictest20439-21latency_hist09:05:081
1048099993,29cyclictest352-21runrttasks11:41:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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