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2025-11-03 - 11:58

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #5

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.
Unexpectedly long latencies may be caused by SMIs
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 100 highest latencies:
System rackeslot5s.osadl.org (updated Mon Nov 03, 2025 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22263992725,1cyclictest22-21ksoftirqd/121:40:011
2226399250,1cyclictest151rcu_preempt23:34:591
22265992421,2cyclictest11808-21latency_hist23:15:013
22263992422,1cyclictest22-21ksoftirqd/123:19:591
2226599230,22cyclictest32168-21perf22:49:593
2226599230,22cyclictest27043-21munin-run23:45:003
2226499230,22cyclictest5310-21apt-get21:55:012
22263992321,1cyclictest6398-21latency_hist20:50:011
2226399230,22cyclictest4663-21perf19:40:001
2226399230,22cyclictest24312-21cron20:19:591
2226299230,22cyclictest2277-21idleruntime-cro00:00:000
2226299230,22cyclictest2135-21cron22:55:000
2226299230,22cyclictest17022-21grep23:25:000
2226299230,22cyclictest1492-21sh20:40:010
22265992220,1cyclictest1831-21apt-get20:40:283
22265992220,1cyclictest0-21swapper/322:20:013
22265992219,2cyclictest7123-21munin-run00:10:003
2226599220,21cyclictest313-21systemd-journal23:25:003
2226599220,21cyclictest15011-21apt-get20:00:283
2226599220,21cyclictest0-21swapper/323:35:343
2226599220,21cyclictest0-21swapper/322:40:293
2226599220,21cyclictest0-21swapper/321:10:293
2226599220,21cyclictest0-21swapper/319:15:283
2226599220,1cyclictest6007-21apt-get21:55:313
22264992221,0cyclictest10821-21apt-get22:05:302
22264992220,1cyclictest612-21gdbus22:34:592
2226499220,21cyclictest9044-21/usr/sbin/munin20:55:292
2226499220,21cyclictest7402-21apt-get19:45:292
2226499220,21cyclictest27717-21apt-get23:45:322
2226499220,21cyclictest27717-21apt-get23:45:322
2226499220,1cyclictest17717-21tr22:20:012
2226499220,1cyclictest17704-21apt-get23:25:322
2226499220,1cyclictest10532-21awk22:05:002
22263992220,1cyclictest21158-21apt-get21:20:301
22263992220,1cyclictest16694-21cron00:29:591
22263992220,1cyclictest15315-21latency_hist22:14:591
22263992220,1cyclictest11245-21idleruntime-cro21:00:001
2226399220,22cyclictest0-21swapper/120:00:291
2226399220,21cyclictest19524-21munin-run20:10:001
2226399220,1cyclictest0-21swapper/123:55:011
2226399220,1cyclictest0-21swapper/122:50:301
22262992221,1cyclictest0-21swapper/021:20:300
22262992221,1cyclictest0-21swapper/019:50:020
22262992220,1cyclictest4710-21latency_hist00:05:000
2226299220,22cyclictest0-21swapper/021:45:000
2226299220,21cyclictest24925-21idleruntime-cro22:35:000
2226299220,21cyclictest17113-21turbostat20:05:000
2226299220,21cyclictest16044-21grep21:10:000
2226299220,21cyclictest0-21swapper/022:35:340
2226299220,21cyclictest0-21swapper/021:15:320
2226299220,21cyclictest0-21swapper/021:10:290
2226299220,1cyclictest0-21swapper/021:30:290
2226299220,1cyclictest0-21swapper/019:30:000
22265992121,0cyclictest18740-21apt-get21:15:323
22265992120,1cyclictest396-21sh21:44:593
22265992119,1cyclictest7028-21munin-plugin-st23:05:013
2226599210,21cyclictest0-21swapper/323:25:323
2226599210,21cyclictest0-21swapper/321:00:303
2226599210,20cyclictest0-21swapper/320:55:293
2226599210,1cyclictest30482-21perf21:40:003
2226599210,0cyclictest30144-21apt-get19:25:293
2226599210,0cyclictest0-21swapper/320:05:283
22264992121,0cyclictest30050-21apt-get22:45:302
22264992121,0cyclictest14201-21apt-get23:20:012
22264992121,0cyclictest0-21swapper/221:10:292
22264992120,1cyclictest593-21dbus-daemon22:55:002
22264992120,0cyclictest28358-21apt-get21:35:322
22264992119,1cyclictest593-21dbus-daemon00:00:012
2226499210,21cyclictest12096-21apt-get23:15:292
2226499210,20cyclictest0-21swapper/220:25:322
2226499210,20cyclictest0-21swapper/219:40:272
2226499210,20cyclictest0-21swapper/219:39:592
2226499210,1cyclictest0-21swapper/221:35:012
2226499210,0cyclictest0-21swapper/220:30:282
22263992121,0cyclictest0-21swapper/123:20:001
22263992120,1cyclictest0-21swapper/121:25:281
22263992118,2cyclictest24642-21cut23:40:001
2226399210,21cyclictest0-21swapper/123:55:321
2226399210,21cyclictest0-21swapper/120:35:291
2226399210,21cyclictest0-21swapper/119:10:291
2226399210,20cyclictest0-21swapper/100:00:311
2226399210,1cyclictest11933-21munin-run00:19:591
2226399210,0cyclictest0-21swapper/123:00:351
2226399210,0cyclictest0-21swapper/120:25:321
22262992121,0cyclictest0-21swapper/000:35:290
22262992121,0cyclictest0-21swapper/000:35:290
22262992121,0cyclictest0-21swapper/000:15:320
22262992120,1cyclictest12925-21perf22:10:000
22262992120,1cyclictest0-21swapper/022:55:310
22262992120,1cyclictest0-21swapper/021:45:310
22262992120,0cyclictest4226-21apt-get20:45:280
22262992119,1cyclictest7083-21cron19:45:000
22262992119,1cyclictest50092chrt00:05:280
22262992119,1cyclictest17709-21cron22:20:010
22262992118,3cyclictest0-21swapper/019:20:300
2226299210,21cyclictest0-21swapper/020:40:280
2226299210,21cyclictest0-21swapper/019:45:290
2226299210,0cyclictest0-21swapper/023:25:320
2226299210,0cyclictest0-21swapper/021:35:320
2226299210,0cyclictest0-21swapper/019:15:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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