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2026-03-21 - 11:59

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6s.osadl.org (updated Sat Mar 21, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29773211797,15sleep00-21swapper/019:08:440
243021170,1sleep02428-21ssh23:45:260
29729211693,18sleep10-21swapper/119:08:081
29741211497,12sleep30-21swapper/319:08:183
29715211193,12sleep20-21swapper/219:07:572
47592810,1sleep0101ktimersoftd/023:15:010
146862800,1sleep0101ktimersoftd/022:50:510
322892750,1sleep00-21swapper/022:01:450
273972680,0sleep00-21swapper/021:56:400
157602530,1sleep115759-21ssh00:33:331
29903993817,19cyclictest0-21swapper/222:05:122
29903993617,18cyclictest0-21swapper/200:05:112
214912250,5sleep12990299cyclictest22:58:221
42892230,1sleep30-21swapper/300:21:013
2990299221,19cyclictest0-21swapper/122:10:111
29901992211,9cyclictest0-21swapper/022:05:110
2990199220,1cyclictest0-21swapper/019:10:090
2990299210,2cyclictest0-21swapper/119:25:121
249492210,1sleep10-21swapper/123:01:141
2990499201,16cyclictest7195-21ssh22:10:113
2990199201,2cyclictest0-21swapper/020:35:120
2990199200,2cyclictest0-21swapper/023:50:110
2990399192,15cyclictest0-21swapper/200:17:582
297912190,1sleep20-21swapper/200:14:592
2990399180,17cyclictest0-21swapper/200:24:012
2990199171,14cyclictest0-21swapper/023:15:210
29904991611,3cyclictest0-21swapper/300:00:153
2990299161,13cyclictest0-21swapper/123:59:401
2990299160,14cyclictest31495-21kworker/u8:021:41:041
29901991611,3cyclictest29899-21turbostat20:30:000
29901991611,3cyclictest0-21swapper/021:05:120
2990499151,12cyclictest2088-21ssh00:19:553
29904991510,3cyclictest0-21swapper/321:45:593
2990499150,13cyclictest0-21swapper/322:45:123
2990399154,9cyclictest13752-21diskmemload22:26:392
2990299152,8cyclictest17788-21copy22:55:001
2990299152,7cyclictest0-21swapper/122:25:011
2990299151,5cyclictest6837-21grep23:16:031
2990299151,3cyclictest16372-21hddtemp_smartct00:00:141
2990299151,3cyclictest0-21swapper/100:36:271
2990199151,3cyclictest32431-21df19:15:130
2990199151,12cyclictest30510-21ssh21:26:110
2990199151,12cyclictest16063-21ssh00:34:020
29901991510,3cyclictest23878-21ssh22:26:350
2990199150,13cyclictest0-21swapper/023:55:190
2990199150,13cyclictest0-21swapper/022:56:210
2990499141,2cyclictest9924-21apt-get19:40:103
2990499140,3cyclictest27646-21ssh21:24:133
2990499140,3cyclictest21836-21date20:10:003
2990499140,2cyclictest0-21swapper/323:16:153
2990499140,2cyclictest0-21swapper/319:25:113
2990499140,12cyclictest0-21swapper/323:01:243
2990499140,12cyclictest0-21swapper/322:22:323
2990499140,12cyclictest0-21swapper/321:26:423
2990499140,12cyclictest0-21swapper/300:35:153
2990499140,12cyclictest0-21swapper/300:33:343
2990399143,10cyclictest17456-1kworker/u9:123:29:302
2990399142,11cyclictest0-21swapper/200:25:012
29903991411,2cyclictest0-21swapper/223:20:112
29903991411,2cyclictest0-21swapper/222:57:402
2990399141,11cyclictest17382-21sh00:01:012
2990399140,2cyclictest0-21swapper/222:38:292
2990399140,2cyclictest0-21swapper/221:15:182
2990399140,13cyclictest0-21swapper/219:55:292
2990399140,12cyclictest19967-21sed21:50:002
2990399140,12cyclictest0-21swapper/221:30:152
2990399140,12cyclictest0-21swapper/221:20:122
2990299141,7cyclictest0-21swapper/120:05:001
2990299141,11cyclictest5467-21apt-get21:35:061
2990199141,2cyclictest3728-21runrttasks21:44:250
29901991411,2cyclictest25594-21ssh23:35:520
29901991410,2cyclictest0-21swapper/021:10:170
2990199140,3cyclictest19794-21sed20:05:000
2990199140,2cyclictest0-21swapper/000:01:020
2990199140,13cyclictest0-21swapper/021:18:310
2990199140,12cyclictest13752-21diskmemload23:21:140
2990199140,12cyclictest0-21swapper/022:43:570
2990199140,12cyclictest0-21swapper/021:30:390
2990199140,12cyclictest0-21swapper/019:25:110
82682130,2sleep30-21swapper/321:36:513
45012130,2sleep00-21swapper/020:45:150
29904991310,2cyclictest0-21swapper/323:56:263
29904991310,2cyclictest0-21swapper/323:34:553
29904991310,2cyclictest0-21swapper/323:05:453
29904991310,2cyclictest0-21swapper/322:37:553
29904991310,2cyclictest0-21swapper/322:25:123
29904991310,2cyclictest0-21swapper/322:05:543
29904991310,2cyclictest0-21swapper/321:54:223
29904991310,2cyclictest0-21swapper/321:33:333
29904991310,2cyclictest0-21swapper/321:11:143
29904991310,2cyclictest0-21swapper/320:56:033
29904991310,2cyclictest0-21swapper/320:36:013
29904991310,2cyclictest0-21swapper/300:25:443
29904991310,2cyclictest0-21swapper/300:06:343
2990499130,2cyclictest5104-21ssh23:48:433
2990499130,2cyclictest0-21swapper/323:50:243
2990499130,2cyclictest0-21swapper/323:37:033
2990499130,2cyclictest0-21swapper/323:25:033
2990499130,11cyclictest28371-21ssh00:12:433
2990399139,2cyclictest23435-21grep20:11:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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