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2025-11-19 - 10:51
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 20 highest latencies:
System rack7slot3.osadl.org (updated Wed Nov 19, 2025 00:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304852219218sleep30488-21ntp_kernel_pll_19:02:120
3120599265240cyclictest967-21ntp_states23:59:060
3120599265233cyclictest24598-21ssh23:20:460
3120599261235cyclictest8482-21sh22:09:020
3120599257232cyclictest5622-21runrttasks21:57:100
3120599257230cyclictest9940-21chrt22:16:210
3120599257228cyclictest26411-21latency_hist21:07:070
312059925664cyclictest20306-21df23:02:020
3120599256229cyclictest143882chrt20:13:140
3120599256226cyclictest9262-21ssh00:36:010
3120599255227cyclictest28318-21ssh23:37:130
3120599254227cyclictest432-21ssh23:57:210
312059925377cyclictest26056-21ssh23:27:150
312059925276cyclictest21887-21egrep20:46:490
3120599252218cyclictest1157-21df19:16:570
3120599250222cyclictest7231-21ssh00:27:040
3120599250222cyclictest26607-21ssh23:28:550
3120599250185cyclictest2872-21snmpd19:36:320
3120599249225cyclictest12667-21perl22:27:560
3120599249222cyclictest3221-21munin-node0
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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