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2024-12-01 - 20:52
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 376 highest latencies:
System rack4slot1.osadl.org (updated Sun Dec 01, 2024 07:20:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
105252600,3chrt0-21swapper/207:17:282
85002550,2sleep10-21swapper/107:12:281
85002550,2sleep10-21swapper/107:12:281
85732446,27sleep28677-21/usr/sbin/munin07:12:302
85732446,27sleep28677-21/usr/sbin/munin07:12:302
916699402,4cyclictest131rcu_preempt07:17:231
84062285,12sleep00-21swapper/007:12:280
84062285,12sleep00-21swapper/007:12:280
88782253,18sleep30-21swapper/307:12:353
88782253,18sleep30-21swapper/307:12:353
916599231,10cyclictest10747-21ntp_kernel_err07:17:300
916999192,12cyclictest0-21swapper/307:17:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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