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2026-05-07 - 16:26
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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: reduced 
Duration: 5 hours, 33 minutes
Characteristics of the 20 highest latencies:
System rack8slot1.osadl.org (updated Thu May 07, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14967993461761,0cyclictest3896-21sort08:01:470
14967992938357,0cyclictest14939-21cron07:01:460
14967992630657,0cyclictest9269-21latency_hist08:16:470
14967992526687,0cyclictest12803-21munin-node08:26:480
14967992484248,0cyclictest7580-1kworker/0:0H08:41:470
14967992469771,0cyclictest21061-21latency_hist10:21:480
14967992468683,0cyclictest1511-21latency_hist09:26:470
14967992451607,0cyclictest9-21ksoftirqd/007:46:470
14967992446193,0cyclictest7580-1kworker/0:0H11:06:470
14967992435520,0cyclictest22165-21cat07:21:470
14967992402755,0cyclictest26483-21sendmail_mailtr10:36:480
14967992400553,0cyclictest9-21ksoftirqd/007:26:470
14967992394666,0cyclictest9-21ksoftirqd/008:56:470
14967992391310,0cyclictest7580-1kworker/0:0H10:41:480
14967992385709,0cyclictest32322-21sendmail_mailtr09:21:480
14967992370657,0cyclictest1118-21cat10:56:480
14967992343260,0cyclictest7580-1kworker/0:0H12:21:460
14967992331290,0cyclictest7580-1kworker/0:0H09:36:470
14967992329251,0cyclictest7580-1kworker/0:0H12:26:460
14967992304269,0cyclictest18201-1kworker/0:1H07:06:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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