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2025-03-24 - 00:45
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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 10 highest latencies:
System rack2slot7.osadl.org (updated Sun Mar 23, 2025 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2233896994827,6cyclictest2344175-21ntpq10:50:490
223389699391,5cyclictest2330142-21ntpq10:30:530
223389699351,6cyclictest2291031-21/usr/sbin/munin09:35:560
223389699332,18cyclictest0-21swapper/009:40:510
2233896993314,17cyclictest0-21swapper/011:31:280
223389699323,6cyclictest2422892-21kernelversion12:20:510
223389699322,28cyclictest2351658-21tune2fs11:00:510
223389899315,11cyclictest171rcu_preempt10:40:532
223389699311,9cyclictest2366152-21ssh11:20:540
223389899302,8cyclictest0-21swapper/211:42:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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