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2025-09-03 - 21:09

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #2, 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 or here to proceed to next system.
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 20 highest latencies:
System rack2slot7s.osadl.org (updated Wed Sep 03, 2025 12:40:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1836953996051,6cyclictest422-21dbus-daemon10:38:292
1836952995419,9cyclictest421-21avahi-daemon11:38:311
1836953995339,9cyclictest1041299-21cups-browsed12:28:272
1836953995339,9cyclictest1041299-21cups-browsed12:28:272
1836952995328,22cyclictest2015815-21fschecks_time12:38:191
1836952995245,4cyclictest0-21swapper/110:48:281
1836952995228,3cyclictest0-21swapper/109:43:261
1836953994941,5cyclictest1838453-21systemd-run07:15:022
1836952994925,4cyclictest0-21swapper/111:48:281
1836952994840,5cyclictest1909857-21systemd-run10:05:011
183695299482,24cyclictest1981511-21ssh11:53:321
183695299475,33cyclictest1966646-21ssh11:33:261
1836951994734,10cyclictest0-21swapper/012:20:020
183695299462,35cyclictest1963329-21ssh11:28:341
1836953994438,3cyclictest0-21swapper/210:50:012
1836952994434,6cyclictest0-21swapper/108:51:061
1836951994436,5cyclictest0-21swapper/010:38:290
1836953994333,7cyclictest1863923-21cron08:40:012
1836953994332,8cyclictest1869949-21idleruntime-cro09:00:012
1836951994337,4cyclictest1925818-21systemd-run10:30:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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