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2025-12-02 - 23:18

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 Dec 02, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
856127810,57sleep00-21swapper/006:44:540
139852710,7sleep0918199cyclictest09:14:200
243799670,6rtkit-daemon2436-21rtkit-daemon08:14:410
9188996537,11cyclictest27743-21sshd10:49:342
243799640,5rtkit-daemon2436-21rtkit-daemon09:59:300
243799630,5rtkit-daemon2436-21rtkit-daemon06:49:370
243799630,5rtkit-daemon2436-21rtkit-daemon06:49:370
275842624,13sleep10-21swapper/110:49:341
243799620,7rtkit-daemon2436-21rtkit-daemon09:39:310
194512624,9sleep019534-21tune2fs09:24:370
9188996034,9cyclictest16195-21grep08:09:412
243799580,4rtkit-daemon2436-21rtkit-daemon10:09:440
9188995711,27cyclictest0-21swapper/209:19:202
918999564,47cyclictest0-21swapper/311:24:393
9188995636,13cyclictest26434-21cpuspeed_turbos07:24:382
918899563,45cyclictest11423-21cut07:59:412
918699565,43cyclictest0-21swapper/108:54:501
194742565,9sleep00-21swapper/010:30:140
194742565,9sleep00-21swapper/010:30:140
9188995538,10cyclictest21553-21tr11:44:302
918699554,13cyclictest0-21swapper/111:29:271
283982550,6sleep228399-21aten_r1power_en11:59:262
243799550,5rtkit-daemon2436-21rtkit-daemon11:59:330
243799550,5rtkit-daemon2436-21rtkit-daemon11:06:120
243799550,5rtkit-daemon2436-21rtkit-daemon10:34:360
243799550,5rtkit-daemon2436-21rtkit-daemon10:24:360
243799550,5rtkit-daemon2436-21rtkit-daemon08:54:400
243799550,5rtkit-daemon2436-21rtkit-daemon07:39:500
243799550,5rtkit-daemon2436-21rtkit-daemon07:14:440
9189995438,10cyclictest4812-21cpuspeed_turbos11:09:293
9189995438,10cyclictest4812-21cpuspeed_turbos11:09:293
9189995423,24cyclictest0-21swapper/310:59:153
9188995433,9cyclictest30543-21runrttasks08:39:422
9188995427,12cyclictest0-21swapper/207:44:502
9188995424,13cyclictest0-21swapper/211:09:462
9188995424,13cyclictest0-21swapper/211:09:462
918699545,12cyclictest0-21swapper/109:39:391
243799540,6rtkit-daemon2436-21rtkit-daemon06:55:000
243799540,5rtkit-daemon2436-21rtkit-daemon10:44:360
243799540,5rtkit-daemon2436-21rtkit-daemon10:43:580
243799540,5rtkit-daemon2436-21rtkit-daemon09:49:380
243799540,5rtkit-daemon2436-21rtkit-daemon09:04:470
243799540,5rtkit-daemon2436-21rtkit-daemon07:44:430
243799540,5rtkit-daemon2436-21rtkit-daemon07:29:430
223572544,42sleep20-21swapper/207:14:502
9189995337,10cyclictest9376-21strings07:54:463
9189995321,11cyclictest6729-21iostat_ios10:04:423
9189995311,34cyclictest0-21swapper/310:39:163
9188995336,9cyclictest31672-21wc12:04:342
9188995324,14cyclictest0-21swapper/209:39:202
918699535,12cyclictest0-21swapper/107:04:361
918699534,33cyclictest0-21swapper/110:39:081
918699534,14cyclictest0-21swapper/111:04:251
918699534,12cyclictest0-21swapper/108:18:471
9186995322,13cyclictest0-21swapper/106:59:371
81592533,9sleep30-21swapper/310:09:303
267352533,43sleep10-21swapper/108:30:381
243799530,5rtkit-daemon2436-21rtkit-daemon12:13:020
243799530,5rtkit-daemon2436-21rtkit-daemon12:04:320
243799530,5rtkit-daemon2436-21rtkit-daemon11:34:340
243799530,5rtkit-daemon2436-21rtkit-daemon10:49:350
243799530,5rtkit-daemon2436-21rtkit-daemon10:04:520
243799530,5rtkit-daemon2436-21rtkit-daemon08:24:410
243799530,5rtkit-daemon2436-21rtkit-daemon08:19:410
243799530,5rtkit-daemon2436-21rtkit-daemon08:19:410
243799530,5rtkit-daemon2436-21rtkit-daemon07:54:500
9189995221,13cyclictest0-21swapper/308:19:543
9189995221,13cyclictest0-21swapper/308:19:543
9188995236,10cyclictest21731-21unixbench_multi10:34:512
918899522,38cyclictest0-21swapper/207:05:442
918699524,29cyclictest0-21swapper/107:49:471
918699523,11cyclictest0-21swapper/108:09:411
9181995222,11cyclictest0-21swapper/010:54:300
243799520,5rtkit-daemon2436-21rtkit-daemon11:54:330
243799520,5rtkit-daemon2436-21rtkit-daemon11:54:330
243799520,5rtkit-daemon2436-21rtkit-daemon10:59:270
243799520,5rtkit-daemon2436-21rtkit-daemon10:19:360
243799520,5rtkit-daemon2436-21rtkit-daemon09:44:530
243799520,5rtkit-daemon2436-21rtkit-daemon09:44:530
243799520,5rtkit-daemon2436-21rtkit-daemon09:20:460
243799520,5rtkit-daemon2436-21rtkit-daemon08:34:410
243799520,5rtkit-daemon2436-21rtkit-daemon08:33:110
243799520,5rtkit-daemon2436-21rtkit-daemon07:09:440
232422522,43sleep00-21swapper/009:32:110
210142523,9sleep30-21swapper/307:13:263
207542524,12sleep20-21swapper/207:10:022
149042523,42sleep10-21swapper/108:07:001
101822523,42sleep10-21swapper/110:13:311
9189995137,9cyclictest31339-21unixbench_multi08:39:543
9189995136,9cyclictest15057-21gltestperf06:59:453
9189995122,12cyclictest0-21swapper/311:14:323
9189995118,13cyclictest28172-21yum-updatesd-he09:43:593
9188995131,7cyclictest23411-21latency_hist09:34:202
9188995126,10cyclictest367-21sshd08:44:402
9188995124,12cyclictest0-21swapper/211:49:342
9188995122,12cyclictest0-21swapper/211:39:342
918699515,9cyclictest9013-21idleruntime-cro11:19:151
918699515,26cyclictest0-21swapper/111:24:161
918699515,13cyclictest0-21swapper/107:46:421
918699514,12cyclictest0-21swapper/111:09:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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