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2026-09-19 - 08:05

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 Sat Sep 19, 2026 00:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1185025250,5sleep10-21swapper/119:10:241
400321150,2sleep10-21swapper/100:12:221
120469911064,30cyclictest0-21swapper/020:30:360
12046991048,18cyclictest0-21swapper/021:30:360
218122980,2sleep10-21swapper/119:35:501
1204699922,9cyclictest17631-21aten_rbpower_cu00:30:370
1204699922,9cyclictest17631-21aten_rbpower_cu00:30:370
1204699912,38cyclictest0-21swapper/020:35:350
12046999023,40cyclictest26062-21sort22:35:530
12046999023,40cyclictest26062-21sort22:35:530
12046999015,62cyclictest22819-21diskmemload23:10:510
240892890,6sleep01204699cyclictest23:15:390
227202870,5sleep318802-21kworker/3:119:40:233
122062870,4sleep11204799cyclictest00:23:061
122062870,4sleep11204799cyclictest00:23:061
1204699878,5cyclictest17178-21basename22:25:370
1204699871,7cyclictest18441-21ls23:50:230
12046998712,56cyclictest0-21swapper/019:20:230
111022870,4sleep30-21swapper/319:05:483
1204699867,66cyclictest10795-21latency_hist23:40:240
1204699852,8cyclictest7507-21grep20:25:480
1204699852,7cyclictest10519-21ssh22:57:520
12046998431,37cyclictest7950irq/56-dwc_otg_22:07:200
1204699841,67cyclictest0-21swapper/021:46:270
1204699837,72cyclictest290042chrt23:20:550
12046998335,29cyclictest0-21swapper/019:10:260
1204699832,8cyclictest11178-21diskstats23:40:400
12046998320,48cyclictest16017-21tr23:05:340
12046998312,50cyclictest28698-21ssh00:02:290
1204699821,71cyclictest27754-21ssh21:56:410
1204699821,71cyclictest27754-21ssh21:56:410
1204699821,56cyclictest24810-21seq21:11:340
256502810,6sleep11204799cyclictest21:55:161
1204699816,47cyclictest19114-21idleruntime-cro21:00:240
12046998111,51cyclictest26270-21latency_hist00:00:240
1204699802,9cyclictest14015-21tr20:45:380
1204699802,9cyclictest0-21swapper/000:10:240
1204699801,67cyclictest15894-21ssh22:23:400
12046998010,53cyclictest0-21swapper/023:50:390
1204699792,8cyclictest9824-21ls22:15:450
12046997914,52cyclictest1868-21rm22:46:260
12046997913,51cyclictest28259-21unixbench-2d21:15:520
1204699791,10cyclictest0-21swapper/019:20:430
12046997821,34cyclictest16203-21systemd-journal00:20:230
1204699781,8cyclictest32236-21tail21:20:530
1204699781,49cyclictest0-21swapper/023:32:530
1204699772,7cyclictest28219-21latency_hist19:55:240
1204699771,10cyclictest0-21swapper/021:29:000
1204699762,8cyclictest0-21swapper/021:41:420
1204699761,8cyclictest0-21swapper/023:27:230
1204699761,63cyclictest22819-21diskmemload21:51:100
1204699761,51cyclictest10867-21ssh21:35:440
12046997613,53cyclictest6702-21ssh22:53:150
12046997613,41cyclictest0-21swapper/022:11:460
12046997613,41cyclictest0-21swapper/022:11:460
12046997612,50cyclictest14011-21ssh23:02:010
1204699752,13cyclictest0-21swapper/000:20:370
1204699752,13cyclictest0-21swapper/000:20:370
12046997518,47cyclictest0-21swapper/019:55:360
12046997516,46cyclictest22819-21diskmemload22:34:300
1204699751,56cyclictest3931-21ssh00:12:130
1204699746,48cyclictest30223-21sshd22:41:030
1204699741,7cyclictest19786-21ls21:00:410
1204699741,61cyclictest0-21swapper/000:36:550
12046997413,47cyclictest32513-21/usr/sbin/munin20:05:450
270562730,2sleep20-21swapper/222:37:322
270562730,2sleep20-21swapper/222:37:322
242062730,2sleep10-21swapper/121:10:511
1204699732,5cyclictest0-21swapper/020:18:170
161682720,6sleep11204799cyclictest23:45:541
1204699722,4cyclictest0-21swapper/019:50:080
210632710,2sleep30-21swapper/300:35:093
210632710,2sleep30-21swapper/300:35:093
207382710,2sleep20-21swapper/223:52:122
1204699712,5cyclictest0-21swapper/020:04:590
1204699712,5cyclictest0-21swapper/020:04:590
272712700,3sleep127275-21sed00:00:451
204732700,5sleep312045-21cyclictest19:30:523
12048997019,18cyclictest0-21swapper/221:15:362
1204699701,7cyclictest0-21swapper/020:24:510
1204699701,57cyclictest0-21swapper/020:11:390
1204699701,56cyclictest15338-21ssh00:26:330
12046997014,31cyclictest7750irq/56-dwc_otg20:40:380
1204699701,10cyclictest0-21swapper/022:00:430
1204699692,7cyclictest22989-21latency_hist21:10:240
1204799687,21cyclictest7950irq/56-dwc_otg_21:15:361
1204699682,10cyclictest0-21swapper/020:52:530
12046996712,44cyclictest22444-21chrt19:37:500
12046996612,42cyclictest18879-21taskset19:28:240
12046996612,42cyclictest18879-21taskset19:28:240
12048996411,7cyclictest7950irq/56-dwc_otg_22:10:362
12048996411,7cyclictest7950irq/56-dwc_otg_22:10:362
1204699642,49cyclictest0-21swapper/019:43:510
12046996315,30cyclictest0-21swapper/019:30:510
1204899607,28cyclictest0-21swapper/223:00:362
1204899602,35cyclictest0-21swapper/200:20:342
1204899602,35cyclictest0-21swapper/200:20:342
9642590,1sleep30-21swapper/320:09:493
1204899588,33cyclictest0-21swapper/220:00:372
1204899588,33cyclictest0-21swapper/220:00:372
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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