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2025-12-22 - 10:50
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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 rackbslot2.osadl.org (updated Sun Dec 21, 2025 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31752852230200,20sleep20-21swapper/207:06:062
31754662226196,20sleep30-21swapper/307:08:243
31753222224195,19sleep10-21swapper/107:06:341
31754272221192,19sleep00-21swapper/007:07:530
3175759998479,3cyclictest3414370-21snmp_wlanswitch11:45:011
3175763995854,2cyclictest17550irq/16-i2c_designware.009:45:002
3175763995449,3cyclictest3206868-21chrome07:45:012
3175763995449,3cyclictest3206868-21chrome07:45:012
3175755995033,15cyclictest3371551-21/usr/share/muni10:55:030
3175767994934,2cyclictest3258323-21chrome08:45:023
3175763994844,3cyclictest3409541-21kworker/u8:4+events_unbound11:50:122
3175763994844,3cyclictest3409541-21kworker/u8:4+events_unbound11:50:122
3175763994832,15cyclictest3404743-21kworker/u8:3+flush-179:011:40:012
3175755994843,3cyclictest1307-21munin-node09:45:010
3175767994639,5cyclictest3228345-21/usr/share/muni08:10:133
3175759994540,4cyclictest3268032-21ntpq08:55:071
3175759994432,11cyclictest3116619-1kworker/1:1H+kblockd08:49:131
3175755994440,3cyclictest1307-21munin-node07:45:020
3175755994440,3cyclictest1307-21munin-node07:45:010
3175763994339,3cyclictest3439526-21kworker/u8:1+flush-179:012:20:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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