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2023-03-28 - 20:30

x86 Intel Core i7-8565U @1800 MHz, Linux 5.4.17-rt9 (Profile)

Latency plot of system in rack #d, slot #0
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -n -p99 -i200 -h400 -a0-2 -t3 -q done
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 Mar 28, 2023 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2568499407391,14cyclictest0-21swapper/107:34:021
2568499405403,2cyclictest0-21swapper/110:46:021
2568899404390,13cyclictest16247-21kworker/2:011:13:022
2568499402402,0cyclictest0-21swapper/111:13:021
2568899393393,0cyclictest0-21swapper/210:46:022
2568899392379,12cyclictest16974-21kworker/2:107:34:022
2568499389388,1cyclictest0-21swapper/112:22:011
2568899388386,1cyclictest0-21swapper/209:38:012
2568399327314,13cyclictest0-21swapper/010:46:020
2568899304301,2cyclictest20271-21gnome-shell07:17:592
2568399304301,2cyclictest0-21swapper/011:04:590
2568899303299,3cyclictest0-21swapper/210:22:592
2568499303300,2cyclictest20271-21gnome-shell10:18:591
2568499303300,2cyclictest20271-21gnome-shell09:13:591
2568499300295,4cyclictest0-21swapper/111:42:591
2568899299297,1cyclictest0-21swapper/211:55:592
2568899299297,1cyclictest0-21swapper/211:55:592
2568899299294,4cyclictest0-21swapper/210:35:592
2568499299294,4cyclictest0-21swapper/109:16:591
2568899298296,1cyclictest0-21swapper/207:50:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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