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2025-06-28 - 23:28
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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 Sat Jun 28, 2025 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2897702229200,19sleep30-21swapper/307:09:203
2896512226197,19sleep00-21swapper/007:07:520
2896332223193,20sleep20-21swapper/207:07:382
2896002223193,20sleep10-21swapper/107:07:131
36915721320,1sleep0369150-21snmp_ryswitch2.08:40:010
289982996954,3cyclictest321399-21ThreadPoolSingl07:45:000
28998799660,42cyclictest546332-21snmp_wlanpowerc12:05:012
289987996443,19cyclictest529052-21chrome11:45:012
289982996155,4cyclictest373453-21chrome08:45:010
289984995650,4cyclictest506994-21latency_hist11:20:011
289982995148,2cyclictest334701-21kworker/u8:3+events_unbound08:35:090
289992994945,3cyclictest476544-21kworker/u8:1+flush-179:010:50:063
289982994946,2cyclictest283258-21kworker/u8:2+events_unbound07:15:090
289987994843,3cyclictest394925-21/usr/share/muni09:10:092
289982994845,2cyclictest351087-21kworker/u8:2+events_unbound09:20:000
289992994631,14cyclictest280962-1kworker/3:1H+kblockd11:05:023
289987994530,3cyclictest65830-1kworker/2:1H+kblockd09:05:032
289982994537,2cyclictest455866-21kworker/u8:2+events_unbound11:15:090
289992994441,2cyclictest424848-13chrome09:45:013
289992994438,5cyclictest507615-21ntpq11:20:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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