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2026-07-09 - 03:33
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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 Thu Jul 09, 2026 00:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3091999233,1cyclictest0-21swapper/022:25:170
3091999232,15cyclictest192572chrt00:31:010
30919992316,2cyclictest21338-21nfsd420:45:180
3091999230,17cyclictest0-21swapper/022:59:270
3091999230,17cyclictest0-21swapper/022:59:270
3091999230,16cyclictest3317-21apache_volume22:10:120
3092899225,16cyclictest4035-21H222:10:212
3092399220,21cyclictest31613-21fschecks_count23:00:141
30919992213,0cyclictest0-21swapper/021:05:140
3091999221,1cyclictest0-21swapper/000:09:430
3091999221,16cyclictest29274-21seq20:02:470
3091999220,3cyclictest12466-21cron21:30:010
3091999220,16cyclictest16714-21chrt22:34:400
3091999220,15cyclictest0-21swapper/019:20:210
3092399210,20cyclictest843-21systemd-network22:19:251
3091999213,11cyclictest2238-21python300:05:000
30919992114,2cyclictest4642-21munin-plugin-st19:20:020
30919992111,5cyclictest0-21swapper/021:50:010
3091999211,14cyclictest0-21swapper/023:21:090
3091999210,3cyclictest3985-21H222:10:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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