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2025-12-03 - 00:46
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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
Characteristics of the 20 highest latencies:
System rackdslot3.osadl.org (updated Tue Dec 02, 2025 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311312206172,22sleep10-21swapper/107:06:381
137191206172,22phc2sys0-21swapper/307:05:343
311892203169,23sleep20-21swapper/207:07:232
312222202167,23sleep00-21swapper/007:07:490
313952163125,13sleep20-21swapper/207:10:002
1776621380,6sleep33169099cyclictest07:45:273
3168799658,17cyclictest0-21swapper/009:10:180
31687996514,10cyclictest27865-21ls08:10:010
31687996513,9cyclictest14070-21fschecks_count07:40:150
31687996510,11cyclictest3652-21fschecks_count10:40:170
31687996510,11cyclictest22075-21apt-config09:05:000
31687996510,11cyclictest22075-21apt-config09:05:000
31687996414,9cyclictest18307-21date07:50:000
31687996414,8cyclictest9007-21latency_hist12:00:000
31687996410,11cyclictest1073-21sort11:40:280
3168799639,16cyclictest0-21swapper/009:40:170
3168799638,9cyclictest0-21swapper/007:40:010
31687996312,10cyclictest11611-21ls08:40:270
31687996215,9cyclictest4247-21ls09:34:590
31687996214,9cyclictest29517-21sed10:25:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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