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2026-04-07 - 21:10
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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 20 highest latencies:
System rackdslot0.osadl.org (updated Tue Apr 07, 2026 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
862999294,15cyclictest0-21swapper/009:50:210
8634992016,3cyclictest0-21swapper/207:27:472
863099204,1cyclictest21114-21cat12:15:141
863499193,9cyclictest0-21swapper/208:00:012
863499192,16cyclictest1377-21lxd12:06:432
863099192,16cyclictest0-21swapper/109:47:301
8630991917,1cyclictest0-21swapper/111:10:011
863099190,1cyclictest0-21swapper/111:40:001
863499182,15cyclictest0-21swapper/210:15:192
8634991815,2cyclictest23592-21iwlist08:30:152
863499180,3cyclictest16793-21snapd10:40:182
863099182,15cyclictest0-21swapper/111:45:231
8630991816,1cyclictest0-21swapper/108:07:271
8630991815,2cyclictest3981-21H222:10:211
863099181,16cyclictest0-21swapper/109:26:561
863099180,2cyclictest31399-21fschecks_time09:40:151
8629991814,3cyclictest16745-21snapd08:02:480
8629991814,2cyclictest26373-21nfsd409:30:180
862999181,15cyclictest3989-21H222:10:210
862999180,17cyclictest16744-21snapd11:57:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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