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2025-12-01 - 23:37
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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 Mon Dec 01, 2025 12:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
221973999357,8cyclictest2356510-21sed09:20:151
221973999320,29cyclictest2488645-21cat11:05:001
221973999310,29cyclictest2589793-21ssh12:24:511
2219737993129,1cyclictest2312328-21cron08:40:000
2219737993129,1cyclictest2312328-21cron08:40:000
2219739993019,10cyclictest2480034-21/usr/sbin/munin10:55:261
221973999300,28cyclictest2449039-21ssh10:30:431
221973999300,28cyclictest2392263-21sed09:45:261
221973999299,10cyclictest2404480-21nvmesmart_nvme009:55:221
2219739992916,11cyclictest2437766-21cron10:24:591
221973999290,28cyclictest0-21swapper/109:33:061
221973999290,1cyclictest0-21swapper/111:05:001
2219739992816,10cyclictest2551768-21cpuspeed_turbos11:55:121
221973999281,26cyclictest0-21swapper/111:49:141
221973999281,24cyclictest2558395-21apt-get12:00:111
221973999280,27cyclictest0-21swapper/112:25:171
221973999280,26cyclictest2531258-21ssh11:36:011
221973999280,26cyclictest2467211-21ssh10:45:201
221974599270,24cyclictest2256814-21tr07:45:183
2219742992722,1cyclictest191rcu_preempt09:32:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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