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2026-07-01 - 20:47
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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 Wed Jul 01, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1428623827,0sleep20-21swapper/207:24:182
1440723425,0sleep10-21swapper/107:25:461
1437523329,0sleep00-21swapper/007:25:200
1410522622,0sleep30-21swapper/307:22:113
339960,0migration/36372-21sh12:06:453
339960,0migration/322355-21sh12:13:403
339960,0migration/317991-21sh10:20:383
339960,0migration/313911-21sh10:55:473
339960,0migration/310098-21sh11:31:293
29815060,0irq/29-eth0-tx-11499-21munin-node08:31:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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