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2026-03-15 - 19:15
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rackcslot6.osadl.org (updated Sun Mar 15, 2026 12:46:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
178192799354353,1cyclictest0-21swapper/008:07:020
178192799354352,1cyclictest0-21swapper/009:00:020
178192799351350,1cyclictest1912127-21kworker/0:012:01:020
178192799351350,1cyclictest1784583-21kworker/0:208:10:020
178192799351350,1cyclictest0-21swapper/010:40:020
178192799351350,1cyclictest0-21swapper/010:40:020
178192799351350,1cyclictest0-21swapper/010:35:020
178192799351350,1cyclictest0-21swapper/009:10:030
178192799351350,1cyclictest0-21swapper/009:10:020
178192799351349,1cyclictest1784583-21kworker/0:210:01:020
178192799350349,1cyclictest1912127-21kworker/0:011:58:020
178192799350349,1cyclictest1912127-21kworker/0:011:00:020
178192799350349,1cyclictest1784583-21kworker/0:209:35:020
178192799350349,1cyclictest0-21swapper/012:25:020
178192799350349,1cyclictest0-21swapper/008:15:020
178192799350349,1cyclictest0-21swapper/007:45:020
178192799350348,1cyclictest0-21swapper/010:55:020
178192799350348,1cyclictest0-21swapper/009:55:020
178192799349348,1cyclictest1912127-21kworker/0:011:09:020
178192799349348,1cyclictest1784583-21kworker/0:208:27:020
178192799349348,1cyclictest0-21swapper/012:30:020
178192799349348,1cyclictest0-21swapper/011:30:020
178192799349348,1cyclictest0-21swapper/010:15:020
178192799349348,1cyclictest0-21swapper/007:52:020
178192799349347,1cyclictest1784583-21kworker/0:209:21:020
178192799348347,1cyclictest1912127-21kworker/0:011:10:020
178192799348347,1cyclictest1784583-21kworker/0:208:02:020
178192799348347,1cyclictest0-21swapper/009:53:020
178192799348347,1cyclictest0-21swapper/008:55:020
178192799348347,1cyclictest0-21swapper/008:43:020
178192799348347,1cyclictest0-21swapper/007:17:020
178192799348346,1cyclictest1784583-21kworker/0:209:46:020
178192799347346,1cyclictest1912127-21kworker/0:011:40:020
178192799347346,1cyclictest1784583-21kworker/0:210:29:030
178192799347346,1cyclictest1784583-21kworker/0:208:35:020
178192799347346,1cyclictest1784583-21kworker/0:207:21:020
178192799347346,1cyclictest0-21swapper/009:18:020
178192799347346,1cyclictest0-21swapper/007:11:020
178192799346345,1cyclictest1784583-21kworker/0:210:13:020
178192799346345,1cyclictest1784583-21kworker/0:207:42:020
178192799346345,1cyclictest1784583-21kworker/0:207:42:020
178192799346345,1cyclictest0-21swapper/012:39:020
178192799346345,1cyclictest0-21swapper/012:06:020
178192799346345,1cyclictest0-21swapper/012:06:020
178192799346345,1cyclictest0-21swapper/011:37:020
178192799346345,1cyclictest0-21swapper/011:28:020
178192799346345,1cyclictest0-21swapper/010:45:020
178192799346345,1cyclictest0-21swapper/007:38:020
178192799346344,1cyclictest0-21swapper/012:18:020
178197799345343,1cyclictest0-21swapper/707:16:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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