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2025-12-04 - 21:00

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 04, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2437991000,3rtkit-daemon0-21swapper/310:02:382
243799990,6rtkit-daemon0-21swapper/311:36:492
3205599914,52cyclictest0-21swapper/310:27:473
32053999028,10cyclictest28217-21gltestperf11:07:441
194522900,5sleep041ktimersoftd/009:42:410
243799890,5rtkit-daemon2436-21rtkit-daemon10:36:291
243799890,5rtkit-daemon2436-21rtkit-daemon10:36:291
3205599883,11cyclictest0-21swapper/311:37:383
3205599865,63cyclictest0-21swapper/311:27:533
3205599864,75cyclictest0-21swapper/312:12:383
3205599864,59cyclictest0-21swapper/309:13:033
3205599854,57cyclictest0-21swapper/310:57:433
3205599853,12cyclictest0-21swapper/311:42:513
32053998529,10cyclictest5216-21unixbench_multi08:03:011
32053998524,55cyclictest1369-21runrttasks08:55:031
32053998433,11cyclictest16808-21aten2.4-expect07:22:421
32053998430,9cyclictest27938-21unixbench_singl09:58:001
3205599834,61cyclictest0-21swapper/309:57:403
32055998315,44cyclictest30955-21munin-node10:07:443
32053998332,9cyclictest23495-21sed10:57:461
3205399833,20cyclictest20187-21hostname10:52:371
32053998328,9cyclictest1409-21unixbench_multi11:17:561
32053998328,9cyclictest1409-21unixbench_multi11:17:561
32053998327,9cyclictest15728-21cpuspeed_turbos10:42:381
32053998327,10cyclictest31774-21gltestperf10:07:441
32053998324,9cyclictest1346-21cpuspeed_turbos07:57:441
32053998319,20cyclictest1369-21runrttasks11:16:001
3205599824,55cyclictest0-21swapper/307:02:503
32053998228,10cyclictest19362-21cpuspeed_turbos09:42:411
3205599817,59cyclictest30997-21sshd08:57:523
3205599815,54cyclictest0-21swapper/308:12:493
3205599814,61cyclictest0-21swapper/309:27:303
3205599814,61cyclictest0-21swapper/308:00:353
3205599814,54cyclictest0-21swapper/307:22:573
32053998128,9cyclictest16207-21fschecks_time08:27:481
32053998128,10cyclictest21797-21ls08:38:001
32053998127,9cyclictest15208-21kernelversion11:47:451
243799810,4rtkit-daemon2436-21rtkit-daemon06:48:233
3205599804,54cyclictest0-21swapper/311:07:573
3205599804,53cyclictest0-21swapper/309:32:573
3205599804,12cyclictest0-21swapper/311:26:073
3205599803,8cyclictest6856-21iostat_ios10:22:463
3205599803,13cyclictest0-21swapper/308:02:473
32053998027,10cyclictest4048-21fschecks_count10:17:411
3205599794,61cyclictest0-21swapper/310:52:453
3205599794,59cyclictest0-21swapper/311:47:543
3205599794,59cyclictest0-21swapper/309:52:383
3205599794,53cyclictest0-21swapper/312:01:133
32055997910,53cyclictest1618-21nscd11:37:203
3205399794,34cyclictest0-21swapper/111:37:341
32053997933,11cyclictest3077-21gltestperf11:22:421
32053997927,10cyclictest1369-21runrttasks08:47:281
243799790,6rtkit-daemon2436-21rtkit-daemon07:44:351
243799790,6rtkit-daemon2436-21rtkit-daemon07:44:351
243799790,4rtkit-daemon2436-21rtkit-daemon08:23:193
243799790,4rtkit-daemon2436-21rtkit-daemon08:23:193
3205599784,66cyclictest0-21swapper/308:12:293
3205599784,58cyclictest0-21swapper/311:12:353
3205599784,55cyclictest0-21swapper/308:32:513
243799780,4rtkit-daemon2436-21rtkit-daemon08:49:033
243799780,4rtkit-daemon2436-21rtkit-daemon07:33:283
3205599776,54cyclictest2196-21nscd10:17:243
3205599774,56cyclictest0-21swapper/311:53:533
32055997718,37cyclictest0-21swapper/308:42:413
243799770,4rtkit-daemon2436-21rtkit-daemon12:08:553
243799770,4rtkit-daemon2436-21rtkit-daemon07:45:583
243799770,4rtkit-daemon2436-21rtkit-daemon07:45:583
3205599764,65cyclictest0-21swapper/307:12:543
3205599764,57cyclictest0-21swapper/307:17:443
3205599764,56cyclictest0-21swapper/309:17:433
3205599764,55cyclictest0-21swapper/309:07:413
3205599764,55cyclictest0-21swapper/309:07:413
3205599763,8cyclictest22345-21iostat_ios12:02:443
32055997612,41cyclictest0-21swapper/308:37:573
3205399764,33cyclictest0-21swapper/110:42:141
3205399763,39cyclictest0-21swapper/109:39:561
32053997622,9cyclictest0-21swapper/108:32:441
243799760,4rtkit-daemon2436-21rtkit-daemon11:18:203
243799760,4rtkit-daemon2436-21rtkit-daemon11:18:203
3205599755,62cyclictest0-21swapper/309:02:463
3205599755,12cyclictest16640-21aten2.4-expect09:37:353
3205599754,64cyclictest0-21swapper/310:33:003
3205599754,64cyclictest0-21swapper/310:33:003
3205599754,58cyclictest0-21swapper/308:27:593
3205599754,47cyclictest0-21swapper/306:47:333
3205599753,8cyclictest21987-21diskstats09:47:423
3205599753,8cyclictest21220-21crond07:32:303
32055997511,40cyclictest114550irq/46-eth006:58:043
32055997511,40cyclictest114550irq/46-eth006:58:043
3205599744,63cyclictest0-21swapper/310:42:503
3205599744,56cyclictest0-21swapper/308:22:283
3205599744,50cyclictest0-21swapper/310:41:003
243799740,5rtkit-daemon2436-21rtkit-daemon07:48:582
3205599735,50cyclictest0-21swapper/309:45:503
3205599734,9cyclictest114550irq/46-eth007:50:333
3205599734,54cyclictest0-21swapper/307:52:593
3205599734,49cyclictest0-21swapper/307:37:413
32053997331,10cyclictest0-21swapper/107:30:531
3205599724,47cyclictest0-21swapper/310:17:543
3205599724,11cyclictest0-21swapper/306:55:253
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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