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2025-11-28 - 02:12

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 Thu Nov 27, 2025 12:43:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1567321050,2sleep20-21swapper/210:10:292
123112830,2sleep20-21swapper/211:38:492
123112830,2sleep20-21swapper/211:38:492
213582820,3sleep337-21rcuc/309:31:053
2740599787,42cyclictest0-21swapper/011:15:230
2740899775,19cyclictest7950irq/56-dwc_otg_07:25:213
2740699769,21cyclictest6465-21runrttasks12:15:211
2740699769,21cyclictest6465-21runrttasks12:15:211
238482750,5sleep123-21ksoftirqd/111:09:541
238482750,5sleep123-21ksoftirqd/111:09:541
226612740,1sleep30-21swapper/308:25:273
226612740,1sleep30-21swapper/308:25:273
108882730,2sleep010889-21sh10:03:020
263932710,1sleep10-21swapper/112:39:401
2740799694,15cyclictest7950irq/56-dwc_otg_08:35:292
2740899681,4cyclictest7950irq/56-dwc_otg_11:05:203
2740899681,4cyclictest7950irq/56-dwc_otg_11:05:203
2740799681,6cyclictest7850irq/56-dwc_otg_10:45:312
27405996831,22cyclictest14307-21grep09:20:390
160822670,1sleep30-21swapper/310:10:343
2740599653,18cyclictest7950irq/56-dwc_otg_07:10:120
2740899642,5cyclictest0-21swapper/309:55:093
278022630,2sleep10-21swapper/108:40:231
2740899631,5cyclictest26266-21ls10:25:293
2740899631,5cyclictest26266-21ls10:25:293
2740799636,5cyclictest16536-21aten_rbpower_en09:25:232
2740799636,5cyclictest16536-21aten_rbpower_en09:25:232
2740799631,7cyclictest21353-21unixbench_singl11:50:372
2740599636,39cyclictest0-21swapper/007:45:220
2740799622,4cyclictest27791-21wget08:40:232
27407996213,6cyclictest7850irq/56-dwc_otg_10:20:232
27405996228,10cyclictest7950irq/56-dwc_otg_11:40:270
2740599621,38cyclictest0-21swapper/012:25:190
93122610,2sleep20-21swapper/207:50:082
27408996120,8cyclictest22675-21latency_hist12:35:093
2740799618,7cyclictest9550irq/80-mmc011:00:092
2740799611,6cyclictest0-21swapper/208:45:302
2740799611,6cyclictest0-21swapper/208:45:302
27405996141,4cyclictest7750irq/56-dwc_otg11:05:370
27405996141,4cyclictest7750irq/56-dwc_otg11:05:370
63082600,2sleep20-21swapper/209:55:402
63082600,2sleep20-21swapper/209:55:402
2740899606,5cyclictest7950irq/56-dwc_otg_10:45:293
2740799606,4cyclictest7850irq/56-dwc_otg_10:25:312
2740799606,4cyclictest7850irq/56-dwc_otg_10:25:312
2740699605,6cyclictest0-21swapper/107:55:191
2740699601,10cyclictest0-21swapper/107:35:191
2740699601,10cyclictest0-21swapper/107:35:191
2740799596,4cyclictest25662-21modprobe08:35:092
2740799591,5cyclictest7850irq/56-dwc_otg_12:10:322
27407995910,16cyclictest7850irq/56-dwc_otg_09:20:252
2740599591,24cyclictest29828-21grep10:30:310
2740799584,4cyclictest7950irq/56-dwc_otg_12:24:412
2740799581,3cyclictest0-21swapper/211:29:012
2740699582,9cyclictest0-21swapper/109:05:191
207132581,3sleep00-21swapper/008:20:260
2740799573,33cyclictest0-21swapper/207:10:122
2740799571,5cyclictest4710-21munin-run09:55:092
2740799571,5cyclictest446-21cron12:05:092
2740799571,3cyclictest0-21swapper/212:35:222
2740899561,6cyclictest32282-21ssh09:46:303
2740799568,7cyclictest7850irq/56-dwc_otg_08:25:092
2740799566,10cyclictest7950irq/56-dwc_otg_09:14:422
2740799565,9cyclictest7750irq/56-dwc_otg10:00:392
2740799561,5cyclictest16846-21chrt12:27:132
2740599567,45cyclictest9-21ksoftirqd/011:10:240
128682560,2sleep30-21swapper/310:05:353
2740899552,10cyclictest7950irq/56-dwc_otg_11:00:213
2740799552,6cyclictest0-21swapper/209:44:202
2740799552,14cyclictest7950irq/56-dwc_otg_10:53:582
27407995513,5cyclictest7850irq/56-dwc_otg_09:09:442
2740899542,13cyclictest7950irq/56-dwc_otg_08:40:233
2740799541,5cyclictest7850irq/56-dwc_otg_09:17:442
2740599545,11cyclictest7850irq/56-dwc_otg_08:50:240
2740599542,29cyclictest1791-21grep08:55:370
27405995411,4cyclictest20139-21modprobe08:20:090
2740699535,13cyclictest23-21ksoftirqd/107:10:121
2740599532,29cyclictest20155-21unixbench_singl10:15:390
2740599532,26cyclictest0-21swapper/007:35:090
2740799522,15cyclictest7950irq/56-dwc_otg_12:30:212
2740699528,8cyclictest31187-21ssh12:05:211
27405995223,16cyclictest0-21swapper/011:01:580
2740599522,29cyclictest2720-21cut09:00:240
2740799512,7cyclictest0-21swapper/211:30:382
2740799511,3cyclictest7850irq/56-dwc_otg_09:40:092
27405995130,4cyclictest7950irq/56-dwc_otg_09:25:260
27405995130,4cyclictest7950irq/56-dwc_otg_09:25:260
27405995126,13cyclictest3794-21/usr/sbin/munin10:40:280
27405995125,13cyclictest7850irq/56-dwc_otg_09:10:320
2740599512,25cyclictest0-21swapper/010:10:080
2740599511,30cyclictest5250-21sed07:35:400
2740599511,30cyclictest5250-21sed07:35:400
27405995112,21cyclictest0-21swapper/007:15:200
27405995110,23cyclictest0-21swapper/009:50:380
2740799502,10cyclictest7950irq/56-dwc_otg_11:45:182
2740699502,9cyclictest0-21swapper/109:55:211
2740699502,9cyclictest0-21swapper/109:55:211
2740599502,5cyclictest13958-21latency_hist10:55:090
2740599502,36cyclictest5241-21kworker/0:111:30:090
2740599501,34cyclictest27297-21apt-get12:00:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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