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2026-06-18 - 18:53
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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 rackaslot0.osadl.org (updated Thu Jun 18, 2026 12:44:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
241152960,0sleep324116-21bash11:57:403
272712890,0sleep20-21swapper/210:07:412
210322870,1sleep10-21swapper/112:08:471
184302850,0sleep230-21ksoftirqd/210:18:152
29402840,0sleep12942-21bash12:21:171
91852610,0sleep228-21rcuc/211:56:182
81942610,0sleep30-21swapper/310:34:183
490426125,18sleep20-21swapper/207:07:492
233302610,5sleep339-21ksoftirqd/312:34:263
480726024,18sleep00-21swapper/007:07:190
289102600,2sleep20-21swapper/211:18:322
175222600,1sleep217510-21apache_volume11:40:112
24772590,6sleep121-21ksoftirqd/111:58:371
283442580,1sleep228336-21ntp_states11:35:232
302072560,1sleep330206-21sshd10:16:243
266822560,2sleep20-21swapper/210:58:332
110872560,1sleep111086-21bash10:43:021
126082550,1sleep20-21swapper/209:32:312
134532540,1sleep313446-21sshd11:28:323
134532540,1sleep313446-21sshd11:28:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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