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2026-07-17 - 21:59

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #3

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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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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack7slot3s.osadl.org (updated Fri Jul 17, 2026 12:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2599325410,6sleep30-21swapper/307:05:373
2752022860,4sleep027522-21cpufreq07:10:190
27550991294,49cyclictest0-21swapper/010:15:500
27551991103,22cyclictest0-21swapper/110:15:501
27551991084,21cyclictest0-21swapper/111:10:521
275509910638,42cyclictest0-21swapper/010:25:530
275519910211,73cyclictest28945-21runrttasks12:15:471
275509910225,43cyclictest0-21swapper/009:50:320
279902970,2sleep00-21swapper/009:37:160
133862920,10sleep00-21swapper/011:18:450
310092910,1sleep30-21swapper/312:19:113
2755199903,15cyclictest2668-21sed10:25:521
2755099886,39cyclictest0-21swapper/011:20:330
2755099864,54cyclictest0-21swapper/012:15:500
27550998633,31cyclictest7539-21ssh11:10:510
2755199853,21cyclictest0-21swapper/112:10:441
27550998345,16cyclictest0-21swapper/011:40:320
2755099834,46cyclictest0-21swapper/011:45:370
2755199814,21cyclictest0-21swapper/111:40:351
2755099818,47cyclictest9-21ksoftirqd/012:10:420
313752790,2sleep10-21swapper/107:20:351
2755199774,17cyclictest2910-21/usr/sbin/munin11:45:401
2755199751,5cyclictest25941-21ssh09:35:321
284562740,1sleep30-21swapper/310:18:413
27550997421,30cyclictest4552-21/usr/sbin/munin07:35:370
2755199732,6cyclictest7139-21/usr/sbin/munin09:10:461
2755199722,6cyclictest0-21swapper/108:40:381
2755099727,17cyclictest0-21swapper/009:45:340
2755099726,14cyclictest0-21swapper/011:35:260
125282710,2sleep20-21swapper/210:38:372
2755199706,10cyclictest17322-21aten_rbpower_vo10:05:351
27553996812,28cyclictest0-21swapper/311:10:513
2755199682,8cyclictest30640-21grep08:45:491
2755099683,61cyclictest0-21swapper/009:15:340
2755199677,24cyclictest0-21swapper/111:55:331
2755199664,4cyclictest7850irq/56-dwc_otg10:30:301
2755199664,16cyclictest8050irq/56-dwc_otg_08:20:411
2755199652,22cyclictest7950irq/56-dwc_otg_12:01:051
27551996519,8cyclictest14255-21aten_rbpower_vo09:20:341
2755399621,26cyclictest0-21swapper/307:25:323
2755199625,5cyclictest7850irq/56-dwc_otg09:50:191
2755399611,36cyclictest0-21swapper/312:10:333
2755199615,10cyclictest31996-21ssh12:20:311
27551996124,6cyclictest20312-21ssh09:27:411
27551996124,6cyclictest20312-21ssh09:27:411
2755399603,9cyclictest7850irq/56-dwc_otg10:25:513
2755199605,26cyclictest30620-21ssh10:20:471
27550995913,21cyclictest0-21swapper/007:45:200
27550995739,5cyclictest7950irq/56-dwc_otg_12:00:350
27552995615,19cyclictest8050irq/56-dwc_otg_12:10:412
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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