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2026-05-04 - 18:39

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 Mon May 04, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
334221130,8sleep1286199cyclictest10:16:321
2485991120,5rtkit-daemon0-21swapper/306:05:283
2485991110,5rtkit-daemon0-21swapper/308:40:453
2485991080,8rtkit-daemon0-21swapper/306:30:123
2485991080,8rtkit-daemon0-21swapper/306:30:123
28619910644,13cyclictest0-21swapper/109:11:101
2485991060,9rtkit-daemon0-21swapper/308:48:073
28619910544,10cyclictest28085-21cpuspeed_turbos10:06:211
2485991050,5rtkit-daemon0-21swapper/305:46:513
2485991040,6rtkit-daemon121850irq/46-eth008:20:080
2485991040,5rtkit-daemon121850irq/46-eth006:11:350
2485991030,6rtkit-daemon0-21swapper/308:26:383
2485991030,6rtkit-daemon0-21swapper/307:15:033
2485991030,5rtkit-daemon28154-21yum-updatesd-he07:41:543
2485991020,7rtkit-daemon0-21swapper/310:09:343
2485991020,7rtkit-daemon0-21swapper/309:55:273
2485991020,7rtkit-daemon0-21swapper/309:55:273
2485991020,6rtkit-daemon0-21swapper/305:21:523
2485991020,5rtkit-daemon0-21swapper/310:21:263
2485991010,6rtkit-daemon0-21swapper/309:56:273
2485991010,6rtkit-daemon0-21swapper/309:56:273
2485991000,6rtkit-daemon24999-21sed06:46:493
2485991000,5rtkit-daemon0-21swapper/309:40:053
248599990,6rtkit-daemon0-21swapper/307:03:183
248599990,5rtkit-daemon2484-21rtkit-daemon09:13:430
248599990,5rtkit-daemon2484-21rtkit-daemon09:13:430
248599980,6rtkit-daemon4306-21netstat04:56:463
248599980,6rtkit-daemon4306-21netstat04:56:463
248599980,4rtkit-daemon16779-21rm08:12:233
2861999742,9cyclictest14988-21cpuspeed08:11:261
248599970,6rtkit-daemon0-21swapper/309:15:433
248599970,6rtkit-daemon0-21swapper/309:15:433
248599970,6rtkit-daemon0-21swapper/308:44:373
248599970,6rtkit-daemon0-21swapper/305:20:003
248599960,6rtkit-daemon0-21swapper/305:13:453
248599960,5rtkit-daemon0-21swapper/309:42:123
248599960,5rtkit-daemon0-21swapper/307:49:243
248599960,5rtkit-daemon0-21swapper/305:35:593
248599950,6rtkit-daemon0-21swapper/309:33:053
248599950,6rtkit-daemon0-21swapper/307:38:553
248599950,6rtkit-daemon0-21swapper/306:59:113
248599940,6rtkit-daemon0-21swapper/308:22:153
248599940,6rtkit-daemon0-21swapper/307:09:263
248599940,6rtkit-daemon0-21swapper/307:09:263
248599940,6rtkit-daemon0-21swapper/306:40:493
248599940,6rtkit-daemon0-21swapper/305:10:453
248599940,5rtkit-daemon0-21swapper/305:30:523
286399933,27cyclictest0-21swapper/209:33:102
248599930,6rtkit-daemon0-21swapper/308:57:513
248599930,6rtkit-daemon0-21swapper/305:52:293
248599930,5rtkit-daemon0-21swapper/308:06:383
248599920,5rtkit-daemon0-21swapper/310:16:183
248599920,5rtkit-daemon0-21swapper/307:26:553
286399913,27cyclictest0-21swapper/207:41:262
320892890,3sleep041ktimersoftd/007:46:540
248599880,5rtkit-daemon0-21swapper/309:07:062
286399874,75cyclictest0-21swapper/208:36:142
286399873,76cyclictest0-21swapper/207:16:492
286399873,25cyclictest0-21swapper/207:53:062
286399864,74cyclictest0-21swapper/209:46:082
286399863,32cyclictest0-21swapper/209:21:452
286399863,27cyclictest0-21swapper/208:50:302
286399859,25cyclictest0-21swapper/208:19:112
286399855,73cyclictest0-21swapper/210:03:072
2863998521,55cyclictest0-21swapper/205:01:202
2863998521,55cyclictest0-21swapper/205:01:202
248599850,6rtkit-daemon0-21swapper/310:01:191
248599850,6rtkit-daemon0-21swapper/307:58:241
286399844,27cyclictest0-21swapper/207:56:412
286399844,18cyclictest19104-21ssh09:05:312
286399843,75cyclictest0-21swapper/207:06:362
286399843,75cyclictest0-21swapper/207:06:362
286399843,23cyclictest0-21swapper/208:31:332
286399843,23cyclictest0-21swapper/208:31:332
286399843,11cyclictest0-21swapper/208:57:042
2863998427,49cyclictest18296-21tune2fs09:51:262
2863998427,49cyclictest18296-21tune2fs09:51:262
2863998424,53cyclictest0-21swapper/209:40:512
248599840,6rtkit-daemon0-21swapper/306:41:041
286399839,13cyclictest0-21swapper/210:11:342
286399834,13cyclictest0-21swapper/207:06:162
286399834,12cyclictest0-21swapper/208:02:272
2863998324,10cyclictest17392-21grep07:26:322
2863998318,8cyclictest5986-21ssh10:21:222
2863998311,11cyclictest0-21swapper/207:36:452
248599830,4rtkit-daemon2484-21rtkit-daemon08:40:150
286399824,71cyclictest0-21swapper/210:17:422
286399824,29cyclictest0-21swapper/208:52:322
2863998233,42cyclictest0-21swapper/207:31:362
2863998227,9cyclictest28572-21ssh10:06:272
2863998227,48cyclictest0-21swapper/207:11:262
2863998223,9cyclictest1287-21snmpd09:59:502
2863998223,9cyclictest1287-21snmpd09:59:502
2863998217,8cyclictest27880-21diskmemload08:26:462
248599820,5rtkit-daemon2484-21rtkit-daemon07:21:550
248599820,5rtkit-daemon0-21swapper/305:24:151
286399814,70cyclictest0-21swapper/209:31:102
286399814,70cyclictest0-21swapper/209:11:412
286399814,70cyclictest0-21swapper/209:11:412
286399814,28cyclictest26355-21ssh09:16:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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