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2025-05-04 - 19:51

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 Sun May 04, 2025 12:41:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1356289996549,13cyclictest1419316-40mandb09:51:500
1356291996136,22cyclictest1-21systemd10:50:022
135629199602,28cyclictest1511571-21ssh12:07:222
1356291995733,20cyclictest0-21swapper/210:00:012
135629199569,6cyclictest171rcu_preempt11:42:262
1356289995542,10cyclictest1359271-21munin-plugin-st07:20:010
1356290995445,5cyclictest1392195-21idleruntime-cro09:10:011
135629199533,26cyclictest1477743-21ssh11:22:212
1356289995333,18cyclictest477-21rs:main0
1356291995243,5cyclictest0-21swapper/209:51:522
1356291995229,2cyclictest0-21swapper/209:05:012
1356291995229,2cyclictest0-21swapper/209:05:012
1356291995125,5cyclictest1379257-21fschecks_count08:27:152
135629199502,20cyclictest1500227-21rm11:52:212
1356291994938,7cyclictest1-21systemd11:30:012
1356290994937,5cyclictest1406205-21kworker/u8:0-rpciod09:51:491
1356290994838,4cyclictest0-21swapper/112:27:241
1356291994635,6cyclictest0-21swapper/209:25:012
1356291994635,6cyclictest0-21swapper/209:25:012
1356290994638,5cyclictest1505845-21systemd-run12:00:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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