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2026-05-15 - 04:50
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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 Fri May 15, 2026 00:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
973921010,2sleep01897599cyclictest23:53:140
90602990,0sleep09031-21sshd22:23:280
17282900,0sleep30-21swapper/323:29:253
270762880,0sleep30-21swapper/322:48:153
105852860,0sleep10-21swapper/123:15:371
183072660,0sleep20-21swapper/222:30:072
121032650,1sleep012085-21sshd00:19:340
187932620,0sleep318796-21sshd22:33:013
264542610,0sleep00-21swapper/000:12:050
1841126125,18sleep30-21swapper/319:08:293
33142600,0sleep20-21swapper/221:42:272
73822590,2sleep20-21swapper/200:19:092
58682580,0sleep05866-21bash22:31:500
255292580,0sleep00-21swapper/023:25:380
60612560,0sleep26064-21munin-node21:25:212
94542550,1sleep19441-21sshd23:24:191
86692550,1sleep226081-21diskmemload22:23:262
46652540,0sleep20-21swapper/222:49:102
272892540,0sleep127287-21bash00:18:001
301692530,0sleep230167-21sshd23:26:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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