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2022-10-04 - 02:58

x86 Intel Core i7-8565U @1800 MHz, Linux 6.0.0-rc2-rt4 (Profile)

Latency plot of system in rack #e, 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 -Sp99 -i200 -h400 -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 rackeslot0.osadl.org (updated Mon Oct 03, 2022 12:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
615299360,35cyclictest0-21swapper/312:01:453
6152993128,2cyclictest20702-21env11:30:113
615299311,5cyclictest11810-21cp10:14:413
615299302,27cyclictest14682-21lsb_release10:53:273
615299301,27cyclictest11059-21lsb_release12:21:113
6155992927,1cyclictest651rcuc/609:38:596
615299291,27cyclictest29616-21lsb_release09:52:233
615299290,4cyclictest30200-2191-release-upgr10:36:593
6156992827,1cyclictest16080-21kworker/7:2+events12:20:337
6155992827,0cyclictest0-21swapper/610:16:326
615299281,2cyclictest11528-21lsb_release12:05:053
615299280,4cyclictest32417-21lsb_release09:12:533
615299280,2cyclictest4183-21apt-config11:37:533
615299280,2cyclictest3779-21systemd11:24:413
615299280,27cyclictest29912-21awk10:02:413
615299280,27cyclictest23180-21systemd10:30:153
6155992727,0cyclictest0-21swapper/609:58:256
6155992726,1cyclictest0-21swapper/612:01:406
6155992725,1cyclictest0-21swapper/610:51:436
6155992724,1cyclictest11818-21polkitd09:15:116
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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