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2025-11-29 - 21:10

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 Nov 29, 2025 12:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1950323250,7sleep219506-21fschecks_time07:05:282
178062970,5sleep02100499cyclictest12:34:130
178062970,5sleep02100499cyclictest12:34:130
212292880,5sleep12100599cyclictest11:55:371
212292880,5sleep12100599cyclictest11:55:371
226892810,2sleep00-21swapper/009:41:500
306172770,2sleep330619-21rm11:24:593
164212740,4sleep20-21swapper/211:50:112
2100699721,41cyclictest21449-21/usr/sbin/munin10:25:322
21004997014,44cyclictest0-21swapper/012:05:420
2100699691,42cyclictest27561-21ls09:50:102
2100499679,46cyclictest0-21swapper/009:25:280
2100499679,46cyclictest0-21swapper/009:25:280
2100499674,46cyclictest0-21swapper/011:15:220
127872670,2sleep00-21swapper/012:27:280
274272650,2sleep00-21swapper/012:05:100
2100699653,43cyclictest7850irq/56-dwc_otg_09:20:262
2100699652,44cyclictest7950irq/56-dwc_otg_09:35:262
2100699651,5cyclictest20426-21chrt12:36:282
2100499648,43cyclictest0-21swapper/007:35:390
2100499645,47cyclictest9-21ksoftirqd/010:30:400
2100699635,42cyclictest7950irq/56-dwc_otg_12:25:102
2100699632,49cyclictest0-21swapper/210:00:542
2100699632,46cyclictest0-21swapper/210:08:282
2100499639,16cyclictest13-21rcuc/009:20:230
2100699627,36cyclictest7950irq/56-dwc_otg_12:30:452
2100699627,36cyclictest7950irq/56-dwc_otg_12:30:452
2100699626,43cyclictest7950irq/56-dwc_otg_08:40:272
2100699624,43cyclictest10311-21/usr/sbin/munin09:25:362
2100699624,43cyclictest10311-21/usr/sbin/munin09:25:362
2100699622,45cyclictest7950irq/56-dwc_otg_12:08:432
2100699621,5cyclictest15265-21ssh10:16:242
21004996228,3cyclictest0-21swapper/011:25:240
21004996228,3cyclictest0-21swapper/011:25:240
2100699613,33cyclictest7950irq/56-dwc_otg_10:20:262
2100699611,42cyclictest2181-21ssh10:44:442
2100599615,8cyclictest0-21swapper/109:30:301
2100499613,37cyclictest0-21swapper/007:20:230
2100499613,37cyclictest0-21swapper/007:20:230
2100499612,31cyclictest0-21swapper/008:30:220
2100699602,49cyclictest5658-21ssh12:18:212
2100699601,42cyclictest10978-21grep10:55:402
2100499601,41cyclictest3214-21wget07:50:250
21004996011,39cyclictest0-21swapper/011:50:230
2100699593,6cyclictest7750irq/56-dwc_otg08:55:232
2100699593,6cyclictest7750irq/56-dwc_otg08:55:232
2100699592,42cyclictest0-21swapper/211:53:152
2100699592,42cyclictest0-21swapper/211:19:442
2100699591,43cyclictest0-21swapper/212:11:312
2100499596,43cyclictest0-21swapper/010:39:560
2100499594,32cyclictest0-21swapper/010:05:290
21004995928,4cyclictest7750irq/56-dwc_otg11:20:230
2100499591,47cyclictest0-21swapper/008:40:370
2100699584,40cyclictest7950irq/56-dwc_otg_09:55:362
2100699584,38cyclictest9632-21fschecks_count11:40:312
2100699581,4cyclictest7950irq/56-dwc_otg_12:28:212
2100699581,47cyclictest22558-21seq11:57:292
2100699581,47cyclictest22558-21seq11:57:292
2100699581,3cyclictest7850irq/56-dwc_otg_12:00:182
2100699581,39cyclictest27804-21latency_hist10:35:102
2100599587,28cyclictest0-21swapper/107:20:261
2100599587,28cyclictest0-21swapper/107:20:261
21004995841,10cyclictest0-21swapper/009:50:230
2100699574,35cyclictest7850irq/56-dwc_otg_07:55:332
2100699571,45cyclictest23034-21ssh11:13:582
2100699571,40cyclictest7950irq/56-dwc_otg_10:50:372
2100599574,36cyclictest26568-21runrttasks07:25:241
21004995721,22cyclictest20557-21grep08:35:510
2100699565,33cyclictest31785-21diskmemload11:00:392
2100699562,36cyclictest0-21swapper/211:20:412
2100699562,32cyclictest0-21swapper/209:53:102
2100699561,41cyclictest0-21swapper/208:51:012
2100699561,39cyclictest31821-21ssh11:25:382
2100699561,39cyclictest31821-21ssh11:25:382
2100499567,25cyclictest0-21swapper/009:35:250
21004995611,33cyclictest13-21rcuc/007:55:280
204752563,12sleep30-21swapper/307:06:523
2100699552,36cyclictest7850irq/56-dwc_otg_07:10:382
2100699551,43cyclictest1120-21runrttasks09:44:472
2100699551,41cyclictest15488-21ssh09:31:282
2100499551,18cyclictest17177-21ssh09:35:110
2100699544,35cyclictest7950irq/56-dwc_otg_07:45:212
2100699542,4cyclictest0-21swapper/211:05:252
2100699541,5cyclictest3853-21chrt07:50:352
2100699541,3cyclictest7950irq/56-dwc_otg_09:17:492
2100499549,29cyclictest338-21unixbench_singl09:55:430
21004995437,9cyclictest7950irq/56-dwc_otg_11:10:100
2100499542,26cyclictest0-21swapper/008:50:100
21004995412,34cyclictest3101050kworker/u9:112:12:420
21004995411,34cyclictest0-21swapper/007:15:220
2100699533,42cyclictest9967-21ssh10:10:212
2100699533,38cyclictest7750irq/56-dwc_otg11:31:322
2100699532,41cyclictest0-21swapper/210:39:382
2100699532,36cyclictest0-21swapper/208:30:102
2100699531,40cyclictest0-21swapper/209:15:012
2100699531,38cyclictest0-21swapper/209:04:182
2100599532,13cyclictest0-21swapper/107:40:241
21004995313,5cyclictest0-21swapper/008:50:230
2100699521,39cyclictest0-21swapper/207:37:032
2100699521,38cyclictest0-21swapper/211:37:252
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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