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2025-12-11 - 07:16

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 Thu Dec 11, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
243799960,5rtkit-daemon2436-21rtkit-daemon22:48:170
238202910,4sleep123914-21tail22:31:361
31362770,4sleep00-21swapper/000:01:460
9872996536,13cyclictest0-21swapper/221:06:202
64612634,51sleep00-21swapper/019:41:350
243799620,6rtkit-daemon0-21swapper/023:25:001
193932623,51sleep10-21swapper/119:01:251
89762614,13sleep00-21swapper/020:51:520
58932603,10sleep20-21swapper/221:53:002
987399594,47cyclictest0-21swapper/320:26:523
987099594,48cyclictest0-21swapper/019:46:350
9873995816,33cyclictest0-21swapper/321:36:323
987299582,50cyclictest0-21swapper/223:36:122
987299582,50cyclictest0-21swapper/223:36:122
77912584,12sleep00-21swapper/021:56:490
255492584,47sleep00-21swapper/021:26:460
255492584,47sleep00-21swapper/021:26:460
243799580,6rtkit-daemon2436-21rtkit-daemon19:31:392
987399574,46cyclictest0-21swapper/320:36:333
9870995737,12cyclictest22308-21grep21:21:360
231662572,9sleep10-21swapper/123:36:451
175992574,13sleep20-21swapper/221:11:372
987399564,46cyclictest0-21swapper/321:11:043
987099563,47cyclictest0-21swapper/023:06:370
987099563,47cyclictest0-21swapper/018:46:370
154072563,45sleep00-21swapper/023:21:370
987399553,45cyclictest18328-21munin-node22:21:303
987099554,31cyclictest0-21swapper/023:36:150
987099554,31cyclictest0-21swapper/023:36:150
9870995537,10cyclictest3623-21cut22:56:360
987099553,46cyclictest0-21swapper/022:06:490
251502553,43sleep00-21swapper/020:19:070
243799550,6rtkit-daemon2436-21rtkit-daemon19:46:242
216042553,7sleep121670-21basename22:26:401
987399545,41cyclictest0-21swapper/322:16:313
987399542,47cyclictest0-21swapper/320:31:343
987399542,46cyclictest0-21swapper/322:26:323
987399542,46cyclictest0-21swapper/320:51:443
987399542,46cyclictest0-21swapper/319:31:523
9872995433,15cyclictest0-21swapper/220:51:402
987099544,33cyclictest0-21swapper/023:31:140
987099544,29cyclictest0-21swapper/019:56:570
9870995435,11cyclictest18873-21unixbench_multi21:11:540
97892544,42sleep00-21swapper/022:01:410
243799540,5rtkit-daemon2436-21rtkit-daemon19:21:552
243799540,5rtkit-daemon2436-21rtkit-daemon19:21:552
243799540,5rtkit-daemon2436-21rtkit-daemon18:51:262
243799540,5rtkit-daemon2436-21rtkit-daemon18:46:262
226052543,7sleep222701-21fschecks_time19:06:422
200172542,10sleep10-21swapper/119:01:411
99672533,43sleep010051-21basename23:11:290
987399534,16cyclictest0-21swapper/322:01:183
987399533,45cyclictest0-21swapper/321:21:433
987399532,46cyclictest0-21swapper/318:46:523
9872995335,12cyclictest0-21swapper/200:01:322
9872995329,12cyclictest0-21swapper/223:51:432
9872995328,13cyclictest0-21swapper/219:51:422
9872995327,13cyclictest0-21swapper/219:26:422
987199534,33cyclictest0-21swapper/119:56:461
987099535,31cyclictest0-21swapper/021:38:080
987099534,31cyclictest0-21swapper/019:01:490
987099534,29cyclictest0-21swapper/023:46:140
987099534,28cyclictest0-21swapper/023:51:380
987099534,25cyclictest0-21swapper/019:26:380
9870995324,14cyclictest0-21swapper/019:51:390
9870995321,16cyclictest0-21swapper/021:46:390
9870995321,13cyclictest0-21swapper/022:25:400
9870995319,13cyclictest0-21swapper/020:36:210
60432533,9sleep00-21swapper/000:10:460
58112534,43sleep10-21swapper/100:07:441
285382533,9sleep00-21swapper/021:32:020
243799530,6rtkit-daemon2436-21rtkit-daemon19:51:232
243799530,5rtkit-daemon2436-21rtkit-daemon22:41:172
243799530,5rtkit-daemon2436-21rtkit-daemon22:31:472
243799530,5rtkit-daemon2436-21rtkit-daemon20:01:382
243799530,5rtkit-daemon2436-21rtkit-daemon20:01:382
243799530,5rtkit-daemon2436-21rtkit-daemon19:11:482
158432533,44sleep00-21swapper/022:16:200
10142533,9sleep00-21swapper/021:43:350
987399524,42cyclictest0-21swapper/321:41:323
987399523,44cyclictest0-21swapper/321:48:093
987399523,42cyclictest0-21swapper/319:51:363
9873995223,9cyclictest31543-21cat19:26:253
987399522,45cyclictest0-21swapper/322:46:383
9872995239,8cyclictest32494-21yum-updatesd-he20:36:322
9872995238,9cyclictest1369-21runrttasks22:53:022
9872995238,9cyclictest1369-21runrttasks22:53:022
987299522,44cyclictest0-21swapper/223:21:442
987099528,28cyclictest31603-21aten2.4-expect23:56:270
987099525,31cyclictest0-21swapper/019:31:550
987099525,30cyclictest0-21swapper/022:37:390
987099525,30cyclictest0-21swapper/019:11:460
987099524,31cyclictest0-21swapper/023:46:380
987099524,26cyclictest0-21swapper/022:31:290
9870995229,15cyclictest0-21swapper/020:36:480
49682523,9sleep00-21swapper/020:46:000
299792522,9sleep30-21swapper/322:45:283
243799520,5rtkit-daemon2436-21rtkit-daemon18:51:482
211572523,43sleep00-21swapper/021:16:510
156462522,9sleep30-21swapper/322:15:383
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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