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2026-01-08 - 20:46

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, slot #7

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackfslot7s.osadl.org (updated Thu Jan 08, 2026 00:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4521532143109,28sleep10-21swapper/119:09:141
4520322141101,24sleep20-21swapper/219:07:442
4519482141102,33sleep00-21swapper/019:06:370
4518942141110,26sleep30-21swapper/319:05:573
452462992819,7cyclictest13573-21gdbus19:35:062
452462992418,5cyclictest506586-21awk21:55:012
452462992218,2cyclictest0-21swapper/221:40:012
452456992217,3cyclictest0-21swapper/100:20:001
45246699216,4cyclictest355-21systemd-journal19:57:193
452462992117,2cyclictest0-21swapper/200:14:592
45245699211,17cyclictest487547-21ntpq20:55:171
452452992117,3cyclictest13065-10wireplumber23:05:010
452452992117,1cyclictest453878-21apt-get19:15:020
452452992115,4cyclictest13065-10wireplumber22:20:000
45246699209,8cyclictest475409-21munin-run20:20:003
45246699207,10cyclictest13573-21gdbus21:40:353
452466992016,2cyclictest493070-21idleruntime-cro21:15:013
452466992015,3cyclictest521588-21smartctl22:40:133
452456992011,6cyclictest545998-21memory23:55:151
4916452190,1sleep30-21swapper/321:10:003
452466991912,5cyclictest528997-21dpkg23:05:003
45246699190,5cyclictest530751-21taskset23:08:593
45246699190,17cyclictest458596-21/usr/sbin/munin19:25:183
45246299195,12cyclictest659-21in:imuxsock19:57:182
452462991915,3cyclictest13236-21gnome-shell00:00:012
452462991912,6cyclictest478816-21/usr/sbin/munin20:30:182
452456991918,1cyclictest103-21hwrng19:11:251
452456991915,2cyclictest555250-21packagekitd00:30:331
452456991911,6cyclictest530470-21PK-Backend23:05:341
452456991910,6cyclictest645-21dbus-daemon00:25:051
452452991911,6cyclictest554466-21users00:20:200
452452991911,6cyclictest501268-21/usr/sbin/munin21:40:000
452452991911,6cyclictest469758-21meminfo20:00:170
452466991815,2cyclictest485916-21needreboot20:50:163
452466991815,2cyclictest483478-21apt-key20:45:013
452466991812,4cyclictest519433-21taskset22:34:213
45246699181,11cyclictest13236-21gnome-shell00:03:593
45246699180,16cyclictest493337-21apt-get21:15:113
45246299189,7cyclictest0-21swapper/220:45:002
45246299186,8cyclictest530858-21basename23:10:002
45246299182,14cyclictest491239-21seq21:06:542
452462991815,2cyclictest459336-21dump-pmu-power19:30:012
452462991814,3cyclictest522664-21dump-pmu-power22:45:002
452462991814,3cyclictest13548-21gmain23:20:432
452462991814,2cyclictest0-21swapper/220:00:182
452456991814,2cyclictest465942-21idleruntime-cro19:50:001
452456991813,3cyclictest0-21swapper/119:59:591
45245699181,15cyclictest524993-21ntpq22:50:161
452456991811,4cyclictest645-21dbus-daemon23:20:011
452456991811,4cyclictest542183-21cron23:45:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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