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2025-11-26 - 14:27

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #8

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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  Congatec
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.
Unexpectedly long latencies may be caused by SMIs
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 rackeslot8s.osadl.org (updated Wed Nov 26, 2025 00:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21601149912320,1228cyclictest25970662sleep300:04:563
21601149911510,1147cyclictest22315882sleep320:05:003
21601149911241,1119cyclictest25325612sleep323:24:573
21601149910990,1094cyclictest2345894-21sleep21:30:013
21601149910361,1031cyclictest2410908-21sleep22:10:003
2160114992840,281cyclictest2467827-21turbostat22:49:553
2160114992115,3cyclictest2588974-21sleep00:00:003
216011499181,13cyclictest2565248-21taskset23:45:123
2160114991714,1cyclictest0-21swapper/321:20:193
216011499171,12cyclictest2492100-21turbostat23:00:003
216011499171,12cyclictest2386705-21taskset21:55:003
216011499171,12cyclictest2300733-21turbostat21:00:013
216011499171,12cyclictest2288161-21taskset20:50:013
216011499165,8cyclictest2307282-21turbostat21:05:013
2160114991613,1cyclictest0-21swapper/300:37:533
2160114991613,1cyclictest0-21swapper/300:05:163
216011499161,11cyclictest2269294-21turbostat20:35:003
24833512150,3sleep02483358-21sh22:53:320
216011499158,4cyclictest2448689-21taskset22:30:193
2160114991513,0cyclictest0-21swapper/323:19:453
2160114991512,1cyclictest0-21swapper/323:00:193
2160114991512,1cyclictest0-21swapper/321:55:143
2160114991512,1cyclictest0-21swapper/321:35:233
2160114991512,1cyclictest0-21swapper/320:10:523
216011499151,11cyclictest2532967-21taskset23:25:133
216011499151,11cyclictest2194158-21taskset19:35:163
216011499151,10cyclictest24516672sleep322:35:133
190898150,10rtkit-daemon2384888-21ssh21:51:060
216011499147,4cyclictest2612752-21taskset00:13:493
216011499145,6cyclictest26360002sleep300:26:293
216011499145,6cyclictest25628602sleep323:40:233
216011499145,6cyclictest23684352sleep321:40:263
216011499144,7cyclictest2467047-21taskset22:43:173
216011499143,8cyclictest2269519-21taskset20:35:013
216011499141,9cyclictest22253262sleep320:00:133
2160114991412,1cyclictest0-21swapper/323:52:113
2160114991412,1cyclictest0-21swapper/321:30:103
2160114991412,1cyclictest0-21swapper/320:20:593
2160114991412,1cyclictest0-21swapper/320:16:343
2160114991412,1cyclictest0-21swapper/320:16:343
2160114991411,1cyclictest0-21swapper/323:10:013
2160114991411,1cyclictest0-21swapper/319:18:253
2160114991411,1cyclictest0-21swapper/300:20:153
216011499141,10cyclictest2619520-21taskset00:15:463
216011499141,10cyclictest2514607-21chrt23:10:463
216011499141,10cyclictest2442849-21taskset22:29:143
216011499141,10cyclictest2320041-21taskset21:11:243
216011499141,10cyclictest2307514-21taskset21:05:073
216011499141,10cyclictest2276310-21taskset20:40:153
216011499141,10cyclictest2219037-21taskset19:55:123
25105172132,9sleep22512498-21cut23:10:182
216011499134,7cyclictest2166067-21taskset19:11:323
216011499131,9cyclictest2555232-21chrt23:36:153
216011499131,9cyclictest2419244-21chrt22:15:083
216011499131,9cyclictest2370712-21taskset21:45:063
216011499131,9cyclictest2294065-21taskset20:50:413
216011499131,9cyclictest2257905-21taskset20:25:173
216011499131,9cyclictest2257905-21taskset20:25:173
216011499131,9cyclictest2187007-21taskset19:25:393
2160114991311,1cyclictest0-21swapper/323:32:183
2160114991311,1cyclictest0-21swapper/321:17:563
2160114991310,1cyclictest0-21swapper/322:20:243
216011499130,10cyclictest2638019-21chrt00:30:123
216011499130,10cyclictest2411130-21taskset22:10:033
216011499130,10cyclictest2394980-21taskset22:00:013
216011499130,10cyclictest2218093-21chrt19:50:233
216011499130,10cyclictest2200160-21taskset19:40:013
190898130,8rtkit-daemon2369852-21ssh21:43:380
190898130,4rtkit-daemon2237557-21pool-udisksd20:09:090
190898130,1rtkit-daemon0-21swapper/021:27:430
25970902121,8sleep22597115-21apt00:05:002
25258402120,5sleep12526786-21grep23:20:191
24757782121,8sleep22475776-21ssh22:49:422
22683782120,8sleep22268434-21ntp_states20:30:212
216011499121,9cyclictest2482126-21taskset22:50:423
216011499121,8cyclictest2206436-21chrt19:45:023
216011499121,8cyclictest2192907-21taskset19:30:233
216011499120,9cyclictest2175026-21taskset19:20:103
23771832110,2sleep02377191-21ssh21:47:000
23012452111,5sleep12301278-21apt-get21:00:131
21539972111,5sleep02154030-21apt-get19:05:130
190898110,8rtkit-daemon2336447-21ssh21:21:490
190898110,6rtkit-daemon2616333-21cut00:15:170
190898110,4rtkit-daemon2596617-21ssh00:03:580
190898110,4rtkit-daemon2166508-21munin-node21:33:130
25903542101,7sleep12591229-21kthreadcore00:00:221
25071072100,1sleep20-21swapper/223:07:122
23128262100,3sleep12313010-21cat21:05:221
22450272100,7sleep12245970-21kthreadcore20:15:181
22450272100,7sleep12245970-21kthreadcore20:15:181
21599572102,3sleep30-21swapper/319:10:013
190898100,6rtkit-daemon2394372-21ssh21:59:180
190898100,5rtkit-daemon2530689-21ssh23:20:340
190898100,5rtkit-daemon2307551-21apt-get21:05:110
190898100,3rtkit-daemon2571359-21ssh23:46:160
2651360290,7sleep02651618-21sed00:35:310
2611343290,3sleep22611351-21ssh00:10:292
2572901291,5sleep12573031-21date23:50:001
2532923290,2sleep22532964-21ssh23:25:132
2352304291,5sleep12352312-21ssh21:31:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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