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2026-09-07 - 11:46
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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 Mon Sep 07, 2026 00:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
428211411,35sleep1430-21ntp_states19:05:231
720211111,73sleep2800-21unixbench_multi19:05:332
1408991113,95cyclictest20013-21chrt22:20:103
13939910726,46cyclictest0-21swapper/023:13:030
3080321000,7sleep10-21swapper/122:36:331
1402999047,32cyclictest3335-21basename00:29:442
1393998927,21cyclictest22425-21seq00:07:560
1398998867,12cyclictest0-21swapper/119:59:441
1402998772,10cyclictest1381-21cyclictest23:15:232
1393998628,23cyclictest1021-21seq21:50:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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