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2026-08-01 - 05:11

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 100 highest latencies:
System rack7slot3s.osadl.org (updated Fri Jul 31, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24088991673,141cyclictest0-21swapper/009:25:280
240889913612,48cyclictest31390-21ssh11:45:380
24088991233,97cyclictest0-21swapper/010:15:380
24090991104,81cyclictest14689-21ssh09:25:262
24088991094,88cyclictest0-21swapper/012:30:450
240889910818,14cyclictest0-21swapper/009:25:290
240889910521,16cyclictest0-21swapper/011:26:440
24088991034,71cyclictest0-21swapper/008:50:560
360121010,2sleep10-21swapper/109:10:501
24091991012,7cyclictest7950irq/56-dwc_otg_10:15:373
24088991002,81cyclictest0-21swapper/012:05:420
24088991002,81cyclictest0-21swapper/012:05:420
1801421000,2sleep10-21swapper/109:29:071
24091999917,54cyclictest0-21swapper/311:45:363
2409099973,77cyclictest31361-21ssh11:45:372
2408899975,12cyclictest0-21swapper/010:14:200
24090999318,57cyclictest0-21swapper/210:15:432
2408899931,73cyclictest11004-21aten_rbpower_cu11:20:410
317832900,2sleep30-21swapper/310:25:483
2408899902,33cyclictest15417-21fschecks_time08:15:450
2409099893,9cyclictest0-21swapper/210:14:202
2408899897,66cyclictest0-21swapper/009:30:420
24088998912,20cyclictest13412-21aten_rbpower_po08:10:420
24090998711,68cyclictest0-21swapper/212:30:452
2409199844,13cyclictest509-21avahi-daemon12:30:473
2408899831,14cyclictest0-21swapper/010:25:570
2408899822,34cyclictest0-21swapper/012:25:020
2408899822,34cyclictest0-21swapper/012:25:020
2408899821,28cyclictest0-21swapper/010:56:430
2408899811,40cyclictest27054-21latency_hist09:40:280
279082800,2sleep30-21swapper/311:40:513
2408899801,27cyclictest11292-21aten_rbpower_vo12:00:410
2408899788,18cyclictest0-21swapper/009:45:270
2408899788,18cyclictest0-21swapper/009:45:270
2408899782,36cyclictest0-21swapper/010:46:020
2408899782,36cyclictest0-21swapper/010:46:020
2408899781,34cyclictest32486-21ssh09:45:580
81512770,6sleep18150-21users09:55:571
2409099772,32cyclictest0-21swapper/211:05:412
24088997720,12cyclictest11059-21aten_rbpower_en10:40:410
2408899771,61cyclictest18803-21latency_hist10:10:270
2409099761,58cyclictest28889-21unixbench_multi08:50:562
2408899761,5cyclictest3795-21wc10:30:550
24088997518,11cyclictest3304-21processes07:40:520
2408899751,33cyclictest0-21swapper/010:00:280
2408899751,28cyclictest0-21swapper/010:03:410
24091997321,6cyclictest25965-21/usr/sbin/munin08:45:503
2408899736,23cyclictest0-21swapper/009:12:240
2408899731,5cyclictest24025-21ntp_states11:35:500
24090997210,56cyclictest0-21swapper/209:25:292
2408899722,28cyclictest0-21swapper/008:02:200
2408899721,51cyclictest32120-21latency12:25:480
2408899721,35cyclictest0-21swapper/011:06:050
24088997211,3cyclictest0-21swapper/008:40:470
2409199715,12cyclictest8050irq/56-dwc_otg_11:26:443
2409199714,9cyclictest0-21swapper/309:25:293
2409099713,13cyclictest0-21swapper/211:26:412
2409099711,54cyclictest7950irq/56-dwc_otg_10:35:392
2408899712,21cyclictest27436-21awk11:00:430
2408899711,15cyclictest0-21swapper/011:41:590
2408899711,13cyclictest0-21swapper/010:20:590
2408899711,13cyclictest0-21swapper/010:20:590
116862710,2sleep20-21swapper/210:40:492
2409199706,8cyclictest0-21swapper/309:25:293
24090997011,42cyclictest31224-21latency_hist07:30:272
2408899701,29cyclictest0-21swapper/011:15:420
2408899701,28cyclictest0-21swapper/007:50:570
2408899701,15cyclictest0-21swapper/011:13:440
2409199683,9cyclictest0-21swapper/312:05:403
2409199683,9cyclictest0-21swapper/312:05:403
2409099683,6cyclictest0-21swapper/212:05:402
2409099683,6cyclictest0-21swapper/212:05:402
2408899681,32cyclictest0-21swapper/012:35:430
94532670,3sleep10-21swapper/111:57:571
2409099671,49cyclictest7139-21ssh11:55:392
24088996718,4cyclictest7850irq/56-dwc_otg11:55:410
2408899666,22cyclictest0-21swapper/009:00:410
2408899662,50cyclictest19639-21wc08:25:540
2408899662,41cyclictest24150-21wget07:10:410
2408899661,30cyclictest3006-21cpuspeed09:50:420
2408899661,28cyclictest0-21swapper/012:20:270
2409099658,46cyclictest7850irq/56-dwc_otg11:20:412
24090996513,40cyclictest29132-21sh11:41:592
2408999656,17cyclictest31380-21apt-get11:45:391
2409099645,47cyclictest23113-21sh09:35:402
2408999646,17cyclictest3530-21fschecks_time12:30:441
2408899642,31cyclictest0-21swapper/007:56:570
2409099636,42cyclictest3578-21ntp_states10:30:502
2409099628,40cyclictest0-21swapper/211:00:532
2409099625,45cyclictest8050irq/56-dwc_otg_10:05:552
2409099625,44cyclictest31230-21apt-config12:25:272
2409099625,44cyclictest31230-21apt-config12:25:272
2409099624,9cyclictest7850irq/56-dwc_otg10:29:562
2409099623,9cyclictest7950irq/56-dwc_otg_07:46:342
2409099622,45cyclictest0-21swapper/209:15:492
2409099622,11cyclictest0-21swapper/210:55:322
2409099622,10cyclictest0-21swapper/212:00:392
2408899625,37cyclictest20055-21ntp_kernel_err12:10:490
2408899622,37cyclictest0-21swapper/010:40:270
3962610,2sleep10-21swapper/111:06:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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