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2026-06-23 - 01:54

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 Jun 23, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2194991190,4rtkit-daemon2193-21rtkit-daemon21:57:511
10575991033,21cyclictest0-21swapper/000:12:410
1057599994,22cyclictest0-21swapper/022:43:550
1057599965,73cyclictest0-21swapper/022:16:400
1057599964,67cyclictest0-21swapper/021:46:420
1057599964,67cyclictest0-21swapper/021:46:420
1057599964,12cyclictest0-21swapper/022:40:510
10575999617,9cyclictest5535-21ssh23:58:500
1057599954,23cyclictest23912-21ssh22:51:330
10575999517,58cyclictest0-21swapper/023:33:100
1057599944,73cyclictest0-21swapper/021:43:190
1057599944,73cyclictest0-21swapper/021:43:190
1057599944,24cyclictest0-21swapper/021:52:540
1057599943,23cyclictest21115-21ssh21:11:380
10575999419,13cyclictest0-21swapper/021:26:380
1057599934,24cyclictest0-21swapper/022:50:130
1057599934,23cyclictest0-21swapper/022:16:220
10575999321,9cyclictest28413-21latency_hist20:31:260
10575999319,11cyclictest0-21swapper/020:05:000
10575999316,12cyclictest0-21swapper/022:25:000
1057599924,80cyclictest0-21swapper/021:06:370
1057599924,70cyclictest0-21swapper/022:04:560
1057599924,24cyclictest0-21swapper/023:16:510
1057599923,68cyclictest0-21swapper/023:49:570
1057599923,23cyclictest0-21swapper/021:16:580
10575999217,11cyclictest0-21swapper/021:23:010
1057599914,69cyclictest0-21swapper/023:11:450
1057599914,28cyclictest0-21swapper/021:31:370
1057599914,25cyclictest0-21swapper/023:01:030
1057599908,22cyclictest0-21swapper/022:29:300
1057599908,22cyclictest0-21swapper/022:29:300
1057599905,21cyclictest0-21swapper/000:06:340
1057599904,69cyclictest0-21swapper/020:51:290
1057599904,67cyclictest0-21swapper/021:36:530
1057599904,61cyclictest0-21swapper/019:36:290
1057599904,27cyclictest0-21swapper/022:06:510
1057599904,27cyclictest0-21swapper/020:25:590
1057599904,27cyclictest0-21swapper/020:25:590
1057599904,26cyclictest0-21swapper/023:53:400
1057599904,25cyclictest0-21swapper/023:25:410
1057599904,25cyclictest0-21swapper/021:56:310
1057599903,65cyclictest0-21swapper/023:26:470
1057599897,22cyclictest0-21swapper/023:44:590
1057599897,22cyclictest0-21swapper/023:44:590
1057599894,67cyclictest0-21swapper/019:26:480
1057599894,61cyclictest0-21swapper/020:16:430
1057599894,25cyclictest0-21swapper/000:01:310
1057599893,71cyclictest0-21swapper/020:57:080
1057599893,24cyclictest0-21swapper/022:34:140
1057599893,23cyclictest1124-21snmpd20:11:590
1057599884,26cyclictest0-21swapper/023:06:230
1057599884,26cyclictest0-21swapper/023:06:230
1057599883,22cyclictest0-21swapper/021:05:040
1057599883,22cyclictest0-21swapper/021:05:040
10575998821,50cyclictest0-21swapper/023:01:330
1057599874,73cyclictest0-21swapper/023:39:190
1057599874,25cyclictest0-21swapper/020:48:070
219499860,7rtkit-daemon0-21swapper/020:31:550
1057599864,73cyclictest0-21swapper/018:46:550
1057599864,26cyclictest0-21swapper/020:38:070
219499850,7rtkit-daemon0-21swapper/019:09:510
10575998519,10cyclictest0-21swapper/020:43:080
1057599844,26cyclictest0-21swapper/019:22:530
1057599844,23cyclictest0-21swapper/019:41:410
1057599844,16cyclictest0-21swapper/018:46:300
1057599834,25cyclictest0-21swapper/019:56:450
1057599833,72cyclictest10401-21tail19:51:460
10575998318,11cyclictest0-21swapper/019:02:480
10575998317,12cyclictest0-21swapper/020:06:530
219499820,23rtkit-daemon0-21swapper/020:25:401
219499820,23rtkit-daemon0-21swapper/020:25:401
1057599823,26cyclictest0-21swapper/019:36:530
10575998227,47cyclictest8921-21grep19:47:020
219499800,5rtkit-daemon2193-21rtkit-daemon22:35:121
219499790,5rtkit-daemon2193-21rtkit-daemon23:30:101
219499790,5rtkit-daemon2193-21rtkit-daemon22:03:291
1057599794,22cyclictest0-21swapper/018:57:580
1057599794,22cyclictest0-21swapper/018:57:580
1057599783,25cyclictest26859-21unixbench_singl19:17:020
1057599783,21cyclictest1227-21runrttasks19:12:520
219499770,6rtkit-daemon0-21swapper/323:25:413
219499770,5rtkit-daemon2193-21rtkit-daemon21:30:301
219499770,4rtkit-daemon2193-21rtkit-daemon22:24:051
219499760,5rtkit-daemon2193-21rtkit-daemon23:12:411
219499760,4rtkit-daemon2193-21rtkit-daemon22:55:271
1057599763,26cyclictest13237-21head18:51:410
219499740,4rtkit-daemon2193-21rtkit-daemon00:15:391
1057799738,56cyclictest0-21swapper/223:50:122
219499720,5rtkit-daemon2193-21rtkit-daemon23:19:561
219499720,4rtkit-daemon2193-21rtkit-daemon00:10:011
219499710,5rtkit-daemon2193-21rtkit-daemon23:46:321
219499710,5rtkit-daemon2193-21rtkit-daemon21:35:151
219499710,4rtkit-daemon2193-21rtkit-daemon22:57:491
219499710,4rtkit-daemon2193-21rtkit-daemon22:29:131
219499710,4rtkit-daemon2193-21rtkit-daemon22:29:131
219499700,4rtkit-daemon2193-21rtkit-daemon23:40:551
219499700,4rtkit-daemon2193-21rtkit-daemon00:00:241
10577997013,32cyclictest23639-21latency_hist20:21:272
10577996920,30cyclictest23665-21unixbench_multi23:36:552
219499680,5rtkit-daemon2193-21rtkit-daemon23:35:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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