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2026-06-08 - 00:42

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 Sun Jun 07, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24089992522,2cyclictest606-21dbus-daemon08:05:012
24089992520,4cyclictest0-21swapper/210:29:392
2408999250,24cyclictest2887-21sh09:57:432
24084992525,0cyclictest0-21swapper/110:20:011
2408099250,24cyclictest17837-21diskmemload09:43:510
2408099250,24cyclictest0-21swapper/011:22:230
2408099250,1cyclictest0-21swapper/010:31:550
24093992423,1cyclictest0-21swapper/311:22:233
24093992423,1cyclictest0-21swapper/309:43:533
2409399240,24cyclictest0-21swapper/312:37:113
2409399240,23cyclictest17957-21ssh10:11:303
2409399240,23cyclictest17048-21apt-get12:14:073
2409399240,1cyclictest0-21swapper/309:38:453
2409399240,0cyclictest17837-21diskmemload10:30:563
2409399240,0cyclictest0-21swapper/310:21:103
24089992419,2cyclictest0-21swapper/209:42:142
2408999240,24cyclictest3910-21latency_hist11:30:002
2408999240,23cyclictest21705-21ssh12:18:072
2408999240,23cyclictest17837-21diskmemload09:50:062
2408999240,23cyclictest0-21swapper/211:49:072
2408999240,1cyclictest0-21swapper/210:02:572
2408499240,24cyclictest17837-21diskmemload11:05:481
2408499240,24cyclictest17837-21diskmemload10:06:011
2408499240,23cyclictest17837-21diskmemload11:34:101
24080992424,0cyclictest0-21swapper/012:37:110
24080992423,1cyclictest0-21swapper/010:42:560
2408099240,23cyclictest62550irq/127-eno111:56:360
2408099240,23cyclictest17837-21diskmemload10:19:310
2408099240,0cyclictest0-21swapper/011:03:080
2408099240,0cyclictest0-21swapper/009:22:070
24093992323,0cyclictest0-21swapper/312:32:523
24093992322,1cyclictest31621-1kworker/u9:011:56:363
24093992322,1cyclictest0-21swapper/311:03:083
24093992321,1cyclictest0-21swapper/312:16:253
2409399230,23cyclictest0-21swapper/312:08:263
2409399230,23cyclictest0-21swapper/310:45:453
2409399230,23cyclictest0-21swapper/309:33:493
2409399230,23cyclictest0-21swapper/309:33:493
2409399230,22cyclictest3584-21sh09:58:503
2409399230,22cyclictest0-21swapper/311:40:593
2409399230,22cyclictest0-21swapper/310:40:203
2409399230,22cyclictest0-21swapper/310:04:123
2409399230,22cyclictest0-21swapper/309:21:443
2409399230,1cyclictest5196-21fschecks_time09:29:073
2409399230,0cyclictest17837-21diskmemload12:25:163
2409399230,0cyclictest17837-21diskmemload11:39:073
2409399230,0cyclictest0-21swapper/312:03:043
2409399230,0cyclictest0-21swapper/310:07:183
2409399230,0cyclictest0-21swapper/309:12:303
24089992323,0cyclictest17837-21diskmemload09:36:062
24089992323,0cyclictest0-21swapper/212:28:142
24089992323,0cyclictest0-21swapper/210:18:152
24089992321,1cyclictest9840-21ssh12:06:062
24089992320,2cyclictest3629-21awk07:35:002
24089992320,2cyclictest17308-21ssh10:42:012
24089992320,2cyclictest1667-21fschecks_count11:59:092
24089992320,2cyclictest11932-21ssh10:05:122
2408999230,2cyclictest11296-21ssh10:35:382
2408999230,23cyclictest0-21swapper/212:34:542
2408999230,23cyclictest0-21swapper/211:52:512
2408999230,22cyclictest27822-21apt-get08:25:002
2408999230,22cyclictest27552-21ssh12:23:532
2408999230,22cyclictest26208-21apt-get10:50:032
2408999230,22cyclictest18268-21ssh09:10:142
2408999230,22cyclictest0-21swapper/207:49:062
2408999230,0cyclictest0-21swapper/212:11:072
2408999230,0cyclictest0-21swapper/211:14:012
2408999230,0cyclictest0-21swapper/209:45:132
24084992323,0cyclictest7875-21apt-get08:50:021
24084992323,0cyclictest0-21swapper/112:14:581
24084992323,0cyclictest0-21swapper/112:04:211
24084992323,0cyclictest0-21swapper/111:45:491
24084992323,0cyclictest0-21swapper/111:44:571
24084992323,0cyclictest0-21swapper/110:00:291
24084992323,0cyclictest0-21swapper/108:25:031
2408499230,23cyclictest17837-21diskmemload12:16:191
2408499230,23cyclictest17837-21diskmemload12:07:421
2408499230,23cyclictest17837-21diskmemload11:38:591
2408499230,23cyclictest0-21swapper/111:24:161
2408499230,23cyclictest0-21swapper/110:31:061
2408499230,23cyclictest0-21swapper/110:25:021
2408499230,23cyclictest0-21swapper/109:52:421
2408499230,22cyclictest785-21ssh10:56:411
2408499230,22cyclictest31303-21ssh11:25:061
2408499230,22cyclictest28883-21awk07:20:011
2408499230,22cyclictest19721-21rm09:43:011
2408499230,22cyclictest18431-21rm09:10:271
2408499230,22cyclictest17816-21ssh11:13:281
2408499230,0cyclictest0-21swapper/112:29:091
2408499230,0cyclictest0-21swapper/110:52:121
2408499230,0cyclictest0-21swapper/110:42:311
2408499230,0cyclictest0-21swapper/110:35:431
2408499230,0cyclictest0-21swapper/110:13:311
24080992323,0cyclictest0-21swapper/012:18:410
24080992323,0cyclictest0-21swapper/011:25:530
24080992323,0cyclictest0-21swapper/011:12:320
24080992323,0cyclictest0-21swapper/010:57:290
24080992323,0cyclictest0-21swapper/008:19:060
24080992322,0cyclictest17837-21diskmemload12:33:580
24080992321,1cyclictest62550irq/127-eno110:14:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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