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2025-03-18 - 14:20

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, 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: 50.5 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 rack5slot7s.osadl.org (updated Fri Feb 21, 2025 12:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25301224332192,97sleep00-21swapper07:08:540
254719917011,130cyclictest8327-21systemd-journal12:00:010
254719916531,95cyclictest20627-21wc10:00:070
254719916122,28cyclictest422-21apt-get11:35:220
254719915920,116cyclictest9333-21apt-get08:46:020
254719915919,38cyclictest4464-21users12:01:100
254719915914,119cyclictest30150-21apt-get11:15:260
254719915911,106cyclictest23352-21/usr/sbin/munin10:20:370
254719915817,116cyclictest5179-21memory12:11:190
254719915817,102cyclictest8514-21apt08:40:020
254719915714,118cyclictest29127-21apt-get07:30:200
254719915622,109cyclictest2561-21cat08:01:050
254719915617,114cyclictest9335-21munin-run08:45:020
254719915614,104cyclictest7420-21apt-get12:31:020
254719915610,24cyclictest30623-21apt-get07:41:540
254719915512,119cyclictest7217-21sed12:21:030
254719915512,118cyclictest1418-21ntpq07:55:560
254719915432,25cyclictest16236-21kworker/u2:209:36:450
254719915419,106cyclictest1247-21apt-get11:40:160
254719915418,111cyclictest6318-21df08:25:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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