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2025-08-29 - 14:49
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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 rack5slot7.osadl.org (updated Fri Aug 29, 2025 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5031224352194,86sleep00-21swapper05:41:040
57539916183,53cyclictest18622-21apt-get10:40:290
57539915883,34cyclictest6739-21cut08:20:380
57539915781,33cyclictest20713-21apt-get09:05:270
57539915580,50cyclictest4005-21apt-get09:55:220
57539915579,51cyclictest8704-21apt-get10:10:280
57539915578,51cyclictest17855-21users10:37:000
57539915480,51cyclictest23995-21df10:55:530
57539915477,37cyclictest23509-21sendmail09:15:050
57539915475,53cyclictest6840-21munin-node09:00:210
57539915378,50cyclictest335-21apt-get08:00:270
57539915371,55cyclictest8492-21ssh08:25:560
57539915278,49cyclictest28084-21ssh11:07:030
57539915276,53cyclictest10743-21irqstats10:16:160
57539915272,55cyclictest31653-21apt-get09:40:300
57539915177,49cyclictest14937-21fw_conntrack08:45:590
57539915175,52cyclictest28828-21/usr/sbin/munin11:10:550
57539915079,45cyclictest13845-21df10:25:530
57539915072,53cyclictest2091-21ssh09:49:030
57539915070,55cyclictest9770-21apt-get08:30:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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