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2026-04-22 - 11:47

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 Wed Apr 22, 2026 00:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2193321010,4sleep3381ktimersoftd/309:51:003
633299841,33cyclictest0-21swapper/207:25:532
6330997139,22cyclictest101ktimersoftd/006:41:010
98112660,2sleep30-21swapper/309:36:073
6330996236,10cyclictest7950irq/56-dwc_otg_09:56:030
633099592,32cyclictest9824-21unixbench_singl08:56:170
6330995810,22cyclictest28577-21aten_rbpower_po08:41:020
6330995810,22cyclictest28577-21aten_rbpower_po08:41:020
6330995735,5cyclictest7950irq/56-dwc_otg_09:46:040
633099563,33cyclictest21770-21wc05:11:110
633099561,36cyclictest0-21swapper/007:30:580
205402560,2sleep020544-21if_err_wlan008:31:060
6330995527,13cyclictest2794-21memory06:51:090
633099552,32cyclictest453-21fschecks_time08:46:040
633099552,29cyclictest0-21swapper/009:31:020
6330995515,23cyclictest908-21runrttasks06:59:000
633099541,49cyclictest0-21swapper/005:16:100
633099541,30cyclictest18408-21ssh07:10:470
6330995329,12cyclictest7850irq/56-dwc_otg_07:36:050
6330995328,5cyclictest13794-21fschecks_count09:41:050
6330995325,6cyclictest0-21swapper/009:22:460
633099524,29cyclictest13-21rcuc/006:20:470
633099524,22cyclictest0-21swapper/004:31:150
6330995232,6cyclictest7850irq/56-dwc_otg_07:01:160
6330995210,23cyclictest30253-21aten_rbpower_vo05:36:020
6330995142,3cyclictest0-21swapper/009:15:590
633099512,3cyclictest983-21ssh09:25:590
633099512,31cyclictest24413-21aten_rbpower_en08:36:020
6330995121,5cyclictest7750irq/56-dwc_otg08:30:470
6330995121,5cyclictest7750irq/56-dwc_otg08:30:470
633099511,31cyclictest8947-21grep08:16:170
633099511,25cyclictest22597-21ssh07:15:470
633099511,24cyclictest9567-21fschecks_time09:36:040
58702513,41sleep20-21swapper/204:28:202
6330995034,3cyclictest0-21swapper/008:00:480
6330995026,5cyclictest30818-21latency_hist07:25:470
6330995026,5cyclictest30818-21latency_hist07:25:470
6330995026,12cyclictest7950irq/56-dwc_otg_08:01:010
6330995023,14cyclictest0-21swapper/006:36:030
6330995020,4cyclictest5496-21grep08:51:150
633099501,25cyclictest15943-21aten_rbpower_en06:26:010
633099501,14cyclictest24871-21cut05:21:040
6333994931,11cyclictest7950irq/56-dwc_otg_08:45:593
6333994920,6cyclictest17444-21sh06:30:473
6331994930,3cyclictest7850irq/56-dwc_otg_06:50:591
633099497,40cyclictest0-21swapper/005:25:530
6330994925,11cyclictest7850irq/56-dwc_otg_04:51:150
6330994923,7cyclictest1354-21cut05:46:010
6330994914,11cyclictest0-21swapper/006:05:590
633099491,25cyclictest0-21swapper/004:56:050
633299487,25cyclictest0-21swapper/205:56:022
633099489,20cyclictest0-21swapper/009:11:020
633099486,4cyclictest0-21swapper/008:11:080
6330994830,5cyclictest22141-21fschecks_count09:51:040
633099482,27cyclictest11522-21grep07:41:060
633099481,25cyclictest16302-21ls07:46:140
633299477,24cyclictest0-21swapper/205:06:002
6330994729,2cyclictest0-21swapper/005:55:590
6330994722,6cyclictest7750irq/56-dwc_otg06:47:130
633099472,24cyclictest0-21swapper/005:41:010
633099472,24cyclictest0-21swapper/004:36:050
633099472,21cyclictest0-21swapper/007:16:210
6330994719,18cyclictest23185-21latency_hist07:55:470
6330994714,5cyclictest730-21users08:06:160
60092473,37sleep00-21swapper/004:30:090
6330994622,5cyclictest28592-21fschecks_count05:31:040
633099462,20cyclictest0-21swapper/008:21:010
633099461,25cyclictest19108-21wc05:05:470
243572460,1sleep10-21swapper/106:37:571
633399457,24cyclictest0-21swapper/305:46:013
6333994521,13cyclictest381ktimersoftd/308:56:103
633299451,33cyclictest0-21swapper/208:11:042
6330994527,10cyclictest7850irq/56-dwc_otg_07:26:000
6330994519,17cyclictest0-21swapper/006:11:260
97672440,1sleep10-21swapper/107:38:531
633399446,24cyclictest0-21swapper/305:06:003
633299441,27cyclictest8007-21apt-config04:35:472
6331994421,7cyclictest26626-21cron07:20:471
6331994415,8cyclictest15173-21sh09:03:271
633099449,17cyclictest19639-21if_wlan005:06:050
633099447,18cyclictest12796-21grep09:01:030
6330994417,12cyclictest0-21swapper/004:46:560
633099441,25cyclictest0-21swapper/006:00:570
139602440,29sleep10-21swapper/104:51:021
633299437,23cyclictest0-21swapper/207:51:002
633299436,25cyclictest0-21swapper/206:41:022
633299436,24cyclictest0-21swapper/204:41:002
633099437,15cyclictest0-21swapper/009:06:130
633099432,22cyclictest0-21swapper/006:20:480
6330994317,18cyclictest0-21swapper/005:51:010
633099431,21cyclictest0-21swapper/004:40:590
633399427,21cyclictest0-21swapper/305:56:023
633199427,23cyclictest0-21swapper/105:06:001
6331994213,4cyclictest32564-21/usr/sbin/munin08:46:151
633199421,27cyclictest18370-21ssh07:10:471
6330994216,11cyclictest0-21swapper/006:32:020
6330994216,11cyclictest0-21swapper/006:32:020
6333994126,7cyclictest23390-21rm09:13:253
6332994120,5cyclictest7324-21kernelversion06:01:072
6331994120,9cyclictest29480-21sh06:44:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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