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2025-12-05 - 13:17
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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 20 highest latencies:
System rackeslot4.osadl.org (updated Fri Dec 05, 2025 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
307762899290,24cyclictest3200786-21diskmemload21:13:461
307762899290,1cyclictest0-21swapper/123:51:141
3077628992816,10cyclictest3235281-21awk21:40:011
307762899280,2cyclictest3200786-21diskmemload00:38:191
307763499262,21cyclictest3128686-21apt-get20:00:143
307763499261,21cyclictest3235577-21apt-get21:40:113
307762899266,1cyclictest0-21swapper/123:20:131
307762499262,1cyclictest0-21swapper/022:47:060
307763499251,21cyclictest3409958-21apt-get00:10:153
307763499251,21cyclictest3252944-21apt-get21:55:153
307763499251,21cyclictest3118555-21apt-get19:50:133
307763499250,20cyclictest4046341-21kworker/u8:3+flush-259:019:15:113
307763099252,20cyclictest3180772-21apt-get20:50:152
3077630992521,3cyclictest522-21in:imuxsock00:15:012
307762899253,21cyclictest3200786-21diskmemload23:10:241
3077628992523,1cyclictest0-21swapper/100:16:221
3077628992522,2cyclictest301rcuc/122:25:001
3077628992521,2cyclictest0-21swapper/119:30:001
3077628992519,1cyclictest191rcu_preempt23:45:191
307762899251,23cyclictest3421529-21/usr/sbin/munin00:20:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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