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2026-06-17 - 01:27

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 Jun 17, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2194991340,5rtkit-daemon2193-21rtkit-daemon23:17:342
17012991093,55cyclictest0-21swapper/021:52:180
17012991044,50cyclictest0-21swapper/021:42:170
17012991034,55cyclictest0-21swapper/021:47:210
17012991033,56cyclictest0-21swapper/021:17:380
170129910324,10cyclictest21070-21cut21:07:230
2194991020,5rtkit-daemon0-21swapper/123:28:562
17012991024,56cyclictest0-21swapper/000:17:220
17012991023,56cyclictest0-21swapper/023:57:150
17012991014,56cyclictest0-21swapper/023:40:490
17012991014,56cyclictest0-21swapper/023:40:490
17012991004,55cyclictest0-21swapper/023:42:210
17012991004,55cyclictest0-21swapper/023:42:210
17017999831,12cyclictest0-21swapper/221:29:162
17017999731,13cyclictest0-21swapper/222:50:372
1701899954,16cyclictest10090-21fschecks_count00:02:153
219499940,5rtkit-daemon2193-21rtkit-daemon23:27:261
1701899933,68cyclictest0-21swapper/322:33:573
17017999331,14cyclictest0-21swapper/222:08:002
17018999220,49cyclictest31681ssh23:52:123
17017999123,25cyclictest0-21swapper/222:34:022
17017999118,16cyclictest0-21swapper/223:52:102
1701799904,38cyclictest0-21swapper/219:28:562
1701799904,38cyclictest0-21swapper/219:28:562
17017998934,9cyclictest9753-21diskmemload21:57:322
1701899883,7cyclictest107550irq/46-eth022:52:283
1701899883,67cyclictest0-21swapper/323:35:543
17018998814,55cyclictest20963-21fschecks_count21:07:223
1701899873,15cyclictest0-21swapper/300:17:273
1701899865,61cyclictest0-21swapper/321:15:513
1701899864,63cyclictest0-21swapper/322:01:343
1701899863,19cyclictest0-21swapper/323:42:223
1701899863,19cyclictest0-21swapper/323:42:223
17018998616,9cyclictest1002-21sshd22:30:343
1701899859,12cyclictest0-21swapper/300:07:253
1701899853,68cyclictest0-21swapper/322:15:533
17018998517,45cyclictest107550irq/46-eth022:23:073
1701899844,72cyclictest1124-21snmpd20:31:353
17017998418,14cyclictest0-21swapper/222:52:222
17017998415,15cyclictest0-21swapper/223:02:292
1701899834,60cyclictest0-21swapper/322:02:233
1701899834,15cyclictest0-21swapper/323:41:083
1701899834,15cyclictest0-21swapper/323:41:083
1701899833,63cyclictest0-21swapper/321:36:223
1701899833,63cyclictest0-21swapper/321:36:223
17018998310,9cyclictest107550irq/46-eth023:27:253
17018998310,8cyclictest107550irq/46-eth023:57:183
89812820,4sleep01701299cyclictest23:12:190
1701899823,63cyclictest0-21swapper/321:20:093
1701899823,62cyclictest0-21swapper/323:07:313
1701899823,21cyclictest0-21swapper/322:37:133
1701899823,21cyclictest0-21swapper/300:16:213
1701899823,20cyclictest0-21swapper/321:23:093
17018998217,10cyclictest175681ssh21:02:223
17018998215,8cyclictest0-21swapper/321:31:103
1701899816,58cyclictest835-21awk23:01:593
1701899816,58cyclictest835-21awk23:01:593
1701899814,68cyclictest11994-21aten_r1power_po21:42:143
1701899814,58cyclictest0-21swapper/323:26:503
17017998132,12cyclictest0-21swapper/221:06:432
1701899804,21cyclictest21192-21sed22:42:253
1701899804,12cyclictest0-21swapper/322:19:003
1701899804,12cyclictest0-21swapper/322:19:003
1701899803,69cyclictest0-21swapper/321:47:243
1701899803,61cyclictest0-21swapper/322:47:123
17018998021,52cyclictest19502-21gltestperf21:52:193
17018998018,56cyclictest21326-21unixbench_multi18:57:413
17018998015,48cyclictest0-21swapper/320:52:043
17018998012,8cyclictest29879-21kworker/3:023:02:123
219499790,28rtkit-daemon2193-21rtkit-daemon20:54:322
219499790,28rtkit-daemon2193-21rtkit-daemon20:54:322
1701899794,68cyclictest0-21swapper/320:53:243
1701899794,68cyclictest0-21swapper/320:53:243
1701899793,69cyclictest22005-21munin-node19:02:263
1701899793,15cyclictest0-21swapper/321:37:293
1701899786,12cyclictest0-21swapper/320:58:123
1701899785,57cyclictest0-21swapper/319:17:193
1701899784,13cyclictest0-21swapper/319:42:263
17018997820,41cyclictest107550irq/46-eth022:07:293
17018997815,7cyclictest9814-21ssh23:12:323
17018997810,9cyclictest31714-21telnet23:47:113
17018997711,8cyclictest107550irq/46-eth023:17:173
1701899763,65cyclictest0-21swapper/320:32:383
17018997622,47cyclictest12060-21gltestperf19:47:283
17018997618,9cyclictest4723-21runrttasks20:39:033
17018997618,51cyclictest0-21swapper/319:32:253
17018997618,51cyclictest0-21swapper/319:32:253
1701899754,64cyclictest333-21ntp_kernel_err19:22:333
1701899754,13cyclictest0-21swapper/318:57:093
17018997523,45cyclictest18882-21df_abs20:02:213
1701899747,12cyclictest0-21swapper/320:47:043
17018997422,45cyclictest25841-21cpuspeed_turbos20:17:193
17018997319,47cyclictest1227-21runrttasks20:07:233
17018997313,8cyclictest7909-21switchtime19:37:383
1701899724,59cyclictest0-21swapper/320:22:343
17018997221,45cyclictest24690-21cpuspeed_turbos19:07:233
17018997219,46cyclictest13759-21aten_r1power_vo19:52:203
17018997215,50cyclictest0-21swapper/319:12:223
17018997118,47cyclictest16758-21fschecks_time19:57:243
17018997113,8cyclictest0-21swapper/319:27:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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