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2025-11-15 - 13:26
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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 10 highest latencies:
System rack5slot7.osadl.org (updated Sat Nov 15, 2025 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3205226320,11sleep01510-1kworker/u3:117:39:430
34159910616,50cyclictest21646-21apt-get21:06:380
34159910318,63cyclictest5363-21fw_conntrack20:17:200
34159910317,66cyclictest23910-21ssh22:50:160
34159910312,51cyclictest5792-21grep17:51:210
34159910219,43cyclictest23840-21memory21:12:360
34159910217,64cyclictest3089-21memory21:47:420
34159910214,28cyclictest21574-21latency_hist21:06:230
34159910117,42cyclictest9606-21df_inode22:07:110
34159910115,67cyclictest26227-21memory19:42:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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