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2025-12-03 - 21:01

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, 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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  Intel
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 rack1slot6s.osadl.org (updated Wed Dec 03, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25434999739,15cyclictest0-21swapper/011:12:420
25434999739,13cyclictest0-21swapper/010:58:330
25434999030,15cyclictest0-21swapper/009:47:440
243799890,11rtkit-daemon0-21swapper/008:13:273
244282860,5sleep024429-21basename07:53:370
243799860,7rtkit-daemon0-21swapper/006:53:453
243799850,4rtkit-daemon2436-21rtkit-daemon10:27:141
25439998413,63cyclictest0-21swapper/107:59:491
243799730,6rtkit-daemon0-21swapper/007:38:431
25434997251,13cyclictest0-21swapper/011:18:310
25439997118,43cyclictest0-21swapper/111:08:191
8112660,6sleep20-21swapper/210:23:542
2544399664,54cyclictest0-21swapper/307:28:283
2544399664,54cyclictest0-21swapper/307:28:283
243799660,7rtkit-daemon0-21swapper/308:40:562
2544399654,53cyclictest0-21swapper/310:23:423
25439996513,33cyclictest0-21swapper/109:18:001
2544399644,52cyclictest0-21swapper/312:13:293
25439996419,37cyclictest16992-21crond07:38:271
25439996415,40cyclictest231871munin-node08:58:501
243799640,6rtkit-daemon0-21swapper/008:03:421
243799640,6rtkit-daemon0-21swapper/008:03:421
2544399634,51cyclictest0-21swapper/307:23:273
2543999639,40cyclictest0-21swapper/108:52:561
2543999639,40cyclictest0-21swapper/108:52:561
25439996210,45cyclictest0-21swapper/111:03:191
243799620,6rtkit-daemon0-21swapper/310:18:522
243799620,6rtkit-daemon0-21swapper/308:13:422
25439996113,27cyclictest24509-21munin-node11:13:481
25439996112,41cyclictest5075-21latency10:33:431
243799610,6rtkit-daemon0-21swapper/008:18:561
243799610,6rtkit-daemon0-21swapper/006:53:301
243799610,5rtkit-daemon3106-21wc10:28:510
243799610,5rtkit-daemon0-21swapper/007:28:281
2544399604,48cyclictest6252-21iostat_ios09:28:453
25439996042,10cyclictest17933-21fschecks_time09:53:391
25439996015,36cyclictest31710-21chrt08:08:381
25439996012,40cyclictest0-21swapper/111:10:581
25439996011,41cyclictest0-21swapper/109:52:141
25434996042,12cyclictest0-21swapper/007:43:440
25434996040,13cyclictest0-21swapper/009:53:550
25439995913,32cyclictest10930-21crond10:48:191
25439995911,41cyclictest0-21swapper/107:23:551
25439995910,41cyclictest0-21swapper/109:08:571
25434995938,14cyclictest0-21swapper/010:18:210
25434995938,14cyclictest0-21swapper/010:18:210
243799590,6rtkit-daemon0-21swapper/008:31:331
25441995838,13cyclictest0-21swapper/207:13:502
2543999588,44cyclictest0-21swapper/109:04:271
25439995816,36cyclictest31453-21sshd06:58:511
25439995816,35cyclictest0-21swapper/110:23:061
25439995814,37cyclictest0-21swapper/111:48:311
25439995814,36cyclictest1243-21snmpd10:18:091
25439995814,36cyclictest1243-21snmpd10:18:091
243799580,7rtkit-daemon0-21swapper/308:33:262
243799580,5rtkit-daemon2436-21rtkit-daemon08:32:113
285482572,47sleep00-21swapper/007:59:030
25439995738,11cyclictest3207-21tr09:23:371
25439995718,33cyclictest1369-21runrttasks11:33:311
25439995717,33cyclictest0-21swapper/107:09:371
25439995714,27cyclictest7691-21munin-node07:18:551
25439995710,41cyclictest0-21swapper/107:47:441
25434995737,13cyclictest0-21swapper/007:38:280
2544399562,37cyclictest0-21swapper/308:04:103
2544399562,37cyclictest0-21swapper/308:04:103
2544199564,27cyclictest0-21swapper/211:03:342
25439995619,29cyclictest17687-21fschecks_count12:08:341
25439995614,35cyclictest1243-21snmpd10:03:071
25439995611,39cyclictest0-21swapper/109:33:461
25439995611,28cyclictest0-21swapper/110:48:301
25439995610,30cyclictest0-21swapper/109:43:271
25434995612,35cyclictest0-21swapper/008:03:380
25434995612,35cyclictest0-21swapper/008:03:380
243799560,7rtkit-daemon2436-21rtkit-daemon11:48:181
35942553,11sleep30-21swapper/309:23:423
2543999559,40cyclictest0-21swapper/111:18:501
25439995537,10cyclictest17227-21needreboot08:43:481
25439995525,12cyclictest28695-21gltestperf11:23:401
25439995520,27cyclictest1216-21tail07:03:481
25439995514,35cyclictest0-21swapper/110:08:481
25439995514,34cyclictest2923-21netstat08:13:511
25439995513,33cyclictest9947-21cut11:53:281
25443995436,10cyclictest15045-21grep12:03:323
25441995429,9cyclictest6141-21sadc10:38:192
25441995423,13cyclictest0-21swapper/211:53:512
25439995422,25cyclictest22772-21tail10:03:411
25439995415,32cyclictest11079-21sed09:38:471
25439995414,34cyclictest7583-21chrt08:23:501
25439995414,34cyclictest0-21swapper/111:40:371
25439995414,34cyclictest0-21swapper/111:40:371
25439995413,34cyclictest6378-21munin-node10:38:441
2543499544,42cyclictest0-21swapper/009:08:370
2543499544,41cyclictest0-21swapper/009:28:450
243799540,6rtkit-daemon0-21swapper/306:54:452
179562542,9sleep00-21swapper/008:45:420
2544399534,43cyclictest0-21swapper/309:11:273
2544399533,43cyclictest25543-21munin-node10:08:463
2544399532,38cyclictest0-21swapper/308:57:453
2544199535,26cyclictest0-21swapper/208:03:382
2544199535,26cyclictest0-21swapper/208:03:382
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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