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2026-06-25 - 17:45
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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 rack1slot2.osadl.org (updated Thu Jun 25, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2296825242,0sleep30-21swapper/307:22:543
2321923930,0sleep10-21swapper/107:25:481
2296723127,0sleep20-21swapper/207:22:532
2289422925,0sleep00-21swapper/007:22:020
339960,0migration/330903-21fschecks_count12:26:193
339960,0migration/330061-21sh11:31:083
339960,0migration/329043-21sh10:34:233
339960,0migration/328431-21munin-node08:36:203
339960,0migration/328177-21munin-node11:11:233
339960,0migration/324089-21taskset10:51:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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