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2023-02-06 - 07:03

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 10 highest latencies:
System rackdslot0.osadl.org (updated Mon Feb 06, 2023 00:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
183499420409,10cyclictest0-21swapper/120:09:021
183499412409,0cyclictest0-21swapper/119:27:021
183499390389,0cyclictest0-21swapper/120:31:021
183499390388,0cyclictest0-21swapper/120:04:021
183599316316,0cyclictest0-21swapper/220:09:032
183599315302,13cyclictest30738-21kworker/2:219:27:022
183499306303,2cyclictest20271-21gnome-shell23:42:581
183499306303,2cyclictest20271-21gnome-shell21:04:591
183399304301,2cyclictest20271-21gnome-shell21:26:000
183399304301,2cyclictest20271-21gnome-shell00:04:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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