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2026-06-08 - 09:09
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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 Mon Jun 08, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
226922208175,22sleep10-21swapper/119:09:161
226922208175,22sleep10-21swapper/119:09:151
139491206172,22phc2sys0-21swapper/319:06:413
139491206172,22phc2sys0-21swapper/319:06:403
225072205172,22sleep00-21swapper/019:06:490
225072205172,22sleep00-21swapper/019:06:490
225962202170,22sleep20-21swapper/219:08:002
225962202170,22sleep20-21swapper/219:08:002
648121440,6sleep32304599cyclictest23:05:163
648121440,6sleep32304599cyclictest23:05:163
23045996411,15cyclictest23266-21cstates19:10:123
23045996113,18cyclictest20455-21grep23:35:133
23045996113,18cyclictest20455-21grep23:35:133
23045995912,10cyclictest23990-21wc23:40:233
23045995911,18cyclictest30277-21ls20:30:253
2304599589,16cyclictest0-21swapper/322:45:143
23045995813,9cyclictest2518-21gnome-shell00:13:593
23045995812,16cyclictest1300-21snmpd23:51:043
23045995812,15cyclictest9732-21phc2sys-jitter20:55:233
23045995812,10cyclictest1300-21snmpd20:20:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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