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2026-08-22 - 11:22

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 Sat Aug 22, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3247321040,7sleep00-21swapper/019:10:370
219499850,4rtkit-daemon2193-21rtkit-daemon20:50:030
219499850,4rtkit-daemon2193-21rtkit-daemon20:50:030
219499820,8rtkit-daemon0-21swapper/117:50:181
219499750,5rtkit-daemon2193-21rtkit-daemon23:05:063
37192654,53sleep00-21swapper/021:55:130
2456399654,53cyclictest0-21swapper/023:00:240
24566996446,10cyclictest15642-21runrttasks23:00:303
24566996443,14cyclictest0-21swapper/318:35:233
2456699644,53cyclictest0-21swapper/320:10:153
2456699644,53cyclictest0-21swapper/320:10:153
2456499634,30cyclictest0-21swapper/121:30:311
2456399637,34cyclictest0-21swapper/022:05:150
133332633,52sleep113466-21fschecks_time19:40:181
290552614,48sleep30-21swapper/319:05:213
24566996142,13cyclictest0-21swapper/320:15:223
24566996040,15cyclictest0-21swapper/319:55:273
2456699604,48cyclictest0-21swapper/320:01:033
2456399603,44cyclictest0-21swapper/021:52:590
84562593,13sleep20-21swapper/222:50:212
84562593,13sleep20-21swapper/222:50:212
2456699595,47cyclictest0-21swapper/319:25:343
2456399594,28cyclictest0-21swapper/020:39:020
2456399593,40cyclictest0-21swapper/022:31:270
2456699585,46cyclictest0-21swapper/320:41:573
2456399586,7cyclictest0-21swapper/021:45:340
2456399585,31cyclictest0-21swapper/018:45:260
2456399585,31cyclictest0-21swapper/018:45:260
24563995839,11cyclictest3804-21grep18:10:390
24563995824,11cyclictest17450-21ssh22:15:170
24563995811,14cyclictest0-21swapper/021:40:200
219499580,19rtkit-daemon2193-21rtkit-daemon22:25:152
117082583,48sleep20-21swapper/219:35:312
24566995739,12cyclictest0-21swapper/322:10:143
24566995739,12cyclictest0-21swapper/322:10:143
24566995739,11cyclictest11927-21munin-node20:30:313
2456699573,47cyclictest10945-21munin-node22:05:183
24564995722,28cyclictest13833-21ntp_states21:20:231
2456399575,16cyclictest0-21swapper/020:30:120
2456399574,14cyclictest0-21swapper/020:25:300
2456399573,39cyclictest0-21swapper/022:28:450
2456399573,36cyclictest0-21swapper/021:37:350
2456399573,36cyclictest0-21swapper/021:37:350
24563995713,20cyclictest0-21swapper/022:52:530
24563995713,20cyclictest0-21swapper/022:52:530
70632563,9sleep07175-21ssh22:00:120
247972563,46sleep20-21swapper/220:49:562
2456699564,45cyclictest0-21swapper/322:56:043
2456499564,37cyclictest0-21swapper/122:02:361
2456499563,36cyclictest0-21swapper/122:40:331
2456399565,31cyclictest0-21swapper/018:25:040
2456399565,16cyclictest0-21swapper/021:14:090
2456399565,15cyclictest0-21swapper/021:21:300
2456399564,29cyclictest0-21swapper/019:53:110
2456399564,13cyclictest0-21swapper/020:05:420
24563995634,12cyclictest29317-21crond18:00:050
2456399563,38cyclictest0-21swapper/020:48:490
24563995620,16cyclictest0-21swapper/019:01:480
219499560,6rtkit-daemon2193-21rtkit-daemon22:55:212
321952553,10sleep00-21swapper/022:38:180
2456699559,40cyclictest0-21swapper/321:30:263
2456699555,43cyclictest0-21swapper/322:50:173
2456699555,43cyclictest0-21swapper/322:50:173
24566995541,7cyclictest26872-21df_abs22:30:103
2456699554,45cyclictest0-21swapper/321:00:213
24566995536,13cyclictest0-21swapper/322:45:053
2456599554,44cyclictest0-21swapper/223:05:212
24565995518,20cyclictest0-21swapper/221:00:142
24565995516,11cyclictest30201-21missed_timers21:45:222
2456399555,30cyclictest0-21swapper/018:35:200
2456399554,37cyclictest0-21swapper/023:05:530
2456399554,29cyclictest0-21swapper/023:15:050
2456399554,29cyclictest0-21swapper/018:40:330
2456399553,47cyclictest0-21swapper/022:48:150
2456399553,32cyclictest22872-21ssh19:56:160
2456399553,25cyclictest0-21swapper/018:26:430
2456399552,36cyclictest0-21swapper/022:20:560
219499550,5rtkit-daemon2193-21rtkit-daemon22:31:372
219499550,5rtkit-daemon2193-21rtkit-daemon22:10:152
219499550,5rtkit-daemon2193-21rtkit-daemon22:10:152
53432543,44sleep10-21swapper/119:25:021
257042543,42sleep20-21swapper/219:00:042
24566995439,10cyclictest8727-21aten_r1power_fr20:25:113
24566995434,14cyclictest0-21swapper/321:07:413
24566995434,14cyclictest0-21swapper/319:15:123
24566995410,15cyclictest0-21swapper/322:20:053
24565995425,13cyclictest0-21swapper/220:05:012
24565995423,25cyclictest30497-21gltestperf22:35:132
2456499545,30cyclictest0-21swapper/121:25:121
2456399545,28cyclictest0-21swapper/019:25:300
2456399544,31cyclictest0-21swapper/020:12:280
2456399544,31cyclictest0-21swapper/020:12:280
2456399544,28cyclictest0-21swapper/020:59:010
2456399543,36cyclictest0-21swapper/022:55:510
227102543,9sleep00-21swapper/018:50:350
227102543,9sleep00-21swapper/018:50:350
221642542,46sleep10-21swapper/123:10:281
219499540,6rtkit-daemon2193-21rtkit-daemon22:05:082
219499540,5rtkit-daemon2193-21rtkit-daemon22:20:302
219499540,5rtkit-daemon2193-21rtkit-daemon22:00:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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