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2026-05-27 - 14:07
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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 Wed May 27, 2026 00:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2214622610,6sleep3451rcuc/318:58:383
224519911941,40cyclictest0-21swapper/200:20:202
224519911941,40cyclictest0-21swapper/200:20:202
22451991103,34cyclictest2102-21latency_hist22:55:222
21131210911,69sleep221195-21fschecks_time18:55:492
22451991033,32cyclictest9834-21sh21:20:462
22451991033,32cyclictest9834-21sh21:20:462
224519910317,49cyclictest0-21swapper/200:00:472
224519910317,49cyclictest0-21swapper/200:00:472
22451991023,86cyclictest14596-21ssh22:21:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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