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2025-12-12 - 05:14
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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 rack2slot7.osadl.org (updated Fri Dec 12, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
411519799452,35cyclictest0-21swapper/000:01:300
4115197994324,6cyclictest52167-21ssh22:58:200
4115197993714,15cyclictest11050irq/107-eth%d22:51:200
4115199993626,7cyclictest22885-21sendmail-msp22:33:112
411519799346,25cyclictest111788-21systemd-journal21:49:240
4115197993420,4cyclictest62956-21ssh23:11:160
411519799336,4cyclictest4118485-21systemctl19:26:150
411519799332,9cyclictest565-21ssh22:00:280
4115199993223,6cyclictest0-21swapper/222:08:262
411519899314,6cyclictest0-21swapper/121:50:291
4115197993118,12cyclictest151ktimers/020:53:170
411519999306,18cyclictest4192885-21ntp_states21:58:192
411519899309,8cyclictest11050irq/107-eth%d21:53:101
411519799282,26cyclictest0-21swapper/022:11:160
411519799281,22cyclictest125608-21apt-get00:21:170
411519999276,7cyclictest171rcu_preempt22:38:142
4115199992712,14cyclictest1006-21mta-sts-daemon21:36:202
411519899275,7cyclictest127423-21ssh00:23:151
411519899273,16cyclictest111788-21systemd-journal21:36:201
4115198992717,9cyclictest764-21rs:main1
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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