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2026-03-24 - 19:38

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 Tue Mar 24, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21512999724,22cyclictest30460-21ssh08:45:010
257762880,4sleep02151299cyclictest08:38:340
2151599723,60cyclictest0-21swapper/210:35:022
2151699696,28cyclictest0-21swapper/309:54:503
248599680,5rtkit-daemon2484-21rtkit-daemon08:02:253
2151599673,55cyclictest0-21swapper/208:44:272
1970526721,39sleep10-21swapper/110:53:171
248599650,6rtkit-daemon2484-21rtkit-daemon10:28:273
2151599653,55cyclictest0-21swapper/208:54:412
2151599653,55cyclictest0-21swapper/208:54:412
2151599653,54cyclictest0-21swapper/210:00:122
2151599653,54cyclictest0-21swapper/209:40:022
21514996519,10cyclictest25481-21forks07:50:021
21512996510,26cyclictest0-21swapper/008:09:550
21512996510,26cyclictest0-21swapper/008:09:550
2151599644,53cyclictest0-21swapper/210:54:582
2151599644,53cyclictest0-21swapper/210:54:582
2151599644,52cyclictest0-21swapper/210:52:492
2151599633,53cyclictest0-21swapper/209:19:562
2151599633,53cyclictest0-21swapper/207:54:532
97062623,12sleep20-21swapper/209:50:002
2151699624,29cyclictest0-21swapper/310:59:363
2151699624,29cyclictest0-21swapper/310:59:363
2151599623,51cyclictest0-21swapper/210:49:062
2151699614,30cyclictest0-21swapper/310:24:373
2151599613,52cyclictest15970-21grep09:10:172
2151599613,52cyclictest0-21swapper/210:19:552
2151599613,52cyclictest0-21swapper/208:22:492
2151599613,52cyclictest0-21swapper/207:44:442
2151599613,51cyclictest0-21swapper/210:25:012
21512996119,27cyclictest0-21swapper/008:55:000
21512996119,27cyclictest0-21swapper/008:55:000
167042613,49sleep00-21swapper/010:49:370
85512604,12sleep20-21swapper/208:12:212
85512604,12sleep20-21swapper/208:12:212
248599600,8rtkit-daemon2484-21rtkit-daemon08:50:163
248599600,8rtkit-daemon2484-21rtkit-daemon08:50:163
2151699605,32cyclictest0-21swapper/306:44:463
21516996041,12cyclictest7788-21cpuspeed_turbos08:59:563
2151699604,36cyclictest0-21swapper/311:03:213
21516996016,24cyclictest24470-21seq07:49:163
2151599603,51cyclictest0-21swapper/210:29:512
2151599603,49cyclictest0-21swapper/208:00:072
2151499605,48cyclictest0-21swapper/109:32:001
2151699595,30cyclictest0-21swapper/310:15:093
2151699595,30cyclictest0-21swapper/310:15:093
2151699593,38cyclictest0-21swapper/308:16:113
2151599593,50cyclictest0-21swapper/208:25:232
2151599593,49cyclictest0-21swapper/207:38:082
2151499593,28cyclictest0-21swapper/110:11:361
2151299593,10cyclictest0-21swapper/010:54:280
65882584,47sleep30-21swapper/309:45:023
248599580,4rtkit-daemon2484-21rtkit-daemon08:57:383
248599580,4rtkit-daemon2484-21rtkit-daemon08:57:383
2151599583,49cyclictest0-21swapper/210:06:472
2151599583,49cyclictest0-21swapper/209:45:112
21515995819,31cyclictest12298-21aten2.4-expect09:54:502
2151499584,14cyclictest0-21swapper/109:49:401
2151499583,50cyclictest0-21swapper/108:52:511
2151499583,50cyclictest0-21swapper/108:52:511
2151499583,49cyclictest0-21swapper/108:18:111
2151499583,25cyclictest0-21swapper/108:41:291
21514995827,11cyclictest0-21swapper/110:18:431
21514995827,11cyclictest0-21swapper/110:18:431
21512995814,8cyclictest25717-21basename10:14:470
21512995814,8cyclictest25717-21basename10:14:470
26942573,48sleep00-21swapper/010:27:360
2151699574,29cyclictest0-21swapper/310:49:363
21516995715,24cyclictest0-21swapper/310:04:393
2151599574,45cyclictest14237-21diskmemload08:44:562
2151599573,48cyclictest0-21swapper/208:35:052
2151599573,48cyclictest0-21swapper/207:25:162
2151599573,47cyclictest0-21swapper/210:59:472
2151599573,46cyclictest4487-21cpuspeed_turbos08:54:552
2151599573,46cyclictest4487-21cpuspeed_turbos08:54:552
2151499574,46cyclictest0-21swapper/108:31:261
21514995733,9cyclictest121850irq/46-eth010:48:571
2151499573,48cyclictest0-21swapper/109:17:171
2151499573,48cyclictest0-21swapper/107:40:441
2151299574,45cyclictest0-21swapper/010:30:080
2151699567,27cyclictest27808-21aten_r1power_fr09:29:523
2151699565,31cyclictest0-21swapper/309:24:543
2151699565,28cyclictest0-21swapper/308:49:423
21516995621,15cyclictest10943-21fschecks_time10:39:553
2151599564,47cyclictest20526-21rm08:30:022
2151599563,45cyclictest12083-21munin-node07:29:562
2151599563,30cyclictest0-21swapper/205:40:102
2151599563,12cyclictest0-21swapper/210:18:402
2151599563,12cyclictest0-21swapper/210:18:402
2151499563,46cyclictest0-21swapper/111:04:241
21514995615,25cyclictest0-21swapper/109:29:231
106382564,45sleep30-21swapper/306:19:153
2151699556,30cyclictest6467-21cpuspeed_turbos08:09:563
2151699556,30cyclictest6467-21cpuspeed_turbos08:09:563
2151699555,29cyclictest0-21swapper/308:21:223
2151699555,26cyclictest0-21swapper/307:34:553
2151699554,34cyclictest0-21swapper/309:20:383
2151699554,31cyclictest0-21swapper/306:59:453
2151699554,31cyclictest0-21swapper/306:59:453
2151699554,28cyclictest0-21swapper/310:04:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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