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2025-11-03 - 11:58

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #1

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 rack0slot1s.osadl.org (updated Mon Nov 03, 2025 00:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
618991320,131cyclictest0-21swapper/720:00:237
600991310,130cyclictest0-21swapper/420:11:454
61899128125,2cyclictest0-21swapper/719:15:457
60099127124,2cyclictest0-21swapper/423:20:164
57399127125,1cyclictest3-21ksoftirqd/020:11:450
58399126125,0cyclictest21-21ksoftirqd/119:54:091
58399126122,4cyclictest21-21ksoftirqd/123:49:141
61899125124,1cyclictest0-21swapper/720:31:587
61899125123,1cyclictest0-21swapper/719:59:327
618991250,124cyclictest20231-21chk_conn_tcp22:32:307
618991250,124cyclictest0-21swapper/720:05:117
61899124122,1cyclictest0-21swapper/723:09:567
60899124122,1cyclictest24365-21chk_conn_tcp21:43:175
60899124122,1cyclictest0-21swapper/523:49:405
60899124121,2cyclictest0-21swapper/500:07:505
61899123121,1cyclictest32360-21chk_conn_tcp20:16:177
60899123122,1cyclictest0-21swapper/523:31:285
60899123122,1cyclictest0-21swapper/522:52:145
60899123122,1cyclictest0-21swapper/520:29:185
60099123122,1cyclictest0-21swapper/420:01:284
600991230,1cyclictest0-21swapper/419:40:004
59699123123,0cyclictest37-21ksoftirqd/321:33:423
59699123121,1cyclictest37-21ksoftirqd/322:07:163
58399123121,1cyclictest21-21ksoftirqd/122:36:241
57399123123,0cyclictest3-21ksoftirqd/021:25:140
57399123123,0cyclictest3-21ksoftirqd/021:25:140
57399123123,0cyclictest3-21ksoftirqd/019:14:520
61899122121,1cyclictest0-21swapper/700:01:407
618991220,1cyclictest25964-21chk_conn_tcp22:21:557
60899122121,1cyclictest0-21swapper/500:13:265
60899122120,1cyclictest0-21swapper/523:24:485
60099122121,1cyclictest0-21swapper/421:32:144
58399122122,0cyclictest21-21ksoftirqd/123:57:521
58399122121,0cyclictest21-21ksoftirqd/120:27:371
58399122121,0cyclictest21-21ksoftirqd/119:30:101
60099121119,1cyclictest18883-21chk_conn_tcp21:40:404
59699121120,0cyclictest37-21ksoftirqd/300:39:413
57399121121,0cyclictest3-21ksoftirqd/020:07:320
61899120119,1cyclictest0-21swapper/723:44:457
59699120120,0cyclictest37-21ksoftirqd/323:42:173
57399120119,1cyclictest3-21ksoftirqd/000:11:360
57399120119,0cyclictest3-21ksoftirqd/019:40:000
57399120118,1cyclictest3-21ksoftirqd/023:20:150
61899119118,1cyclictest0-21swapper/723:20:397
61399119117,1cyclictest180850irq/39-eth019:54:096
59699119119,0cyclictest37-21ksoftirqd/323:28:263
57399119118,0cyclictest3-21ksoftirqd/023:33:240
60099118117,1cyclictest0-21swapper/421:28:094
60099118117,1cyclictest0-21swapper/421:28:084
60099118115,2cyclictest0-21swapper/423:46:554
58999118118,0cyclictest29-21ksoftirqd/220:10:082
58399118117,0cyclictest21-21ksoftirqd/120:01:441
59699117117,0cyclictest37-21ksoftirqd/323:19:293
59699117117,0cyclictest37-21ksoftirqd/300:06:573
57399117116,0cyclictest3-21ksoftirqd/020:01:280
61899116115,1cyclictest0-21swapper/723:19:167
61899116114,1cyclictest0-21swapper/723:28:107
60099116115,1cyclictest0-21swapper/423:28:394
60099116114,1cyclictest0-21swapper/421:02:074
59699116116,0cyclictest37-21ksoftirqd/322:55:363
61899115114,1cyclictest0-21swapper/722:43:047
60899115114,1cyclictest0-21swapper/519:54:095
60099115114,1cyclictest0-21swapper/419:12:144
60099115113,1cyclictest0-21swapper/419:54:434
59699115115,0cyclictest37-21ksoftirqd/321:42:463
58999115115,0cyclictest29-21ksoftirqd/221:28:182
58999115115,0cyclictest29-21ksoftirqd/221:28:182
58399115114,0cyclictest21-21ksoftirqd/119:42:221
57399115114,0cyclictest3-21ksoftirqd/021:32:140
60899114113,1cyclictest0-21swapper/523:41:335
600991140,113cyclictest0-21swapper/422:32:464
59699114112,1cyclictest37-21ksoftirqd/321:00:533
58999114114,0cyclictest29-21ksoftirqd/221:48:492
58999114112,1cyclictest29-21ksoftirqd/223:43:572
58399114110,3cyclictest21-21ksoftirqd/123:44:591
57399114113,0cyclictest3-21ksoftirqd/021:40:400
61899113111,1cyclictest0-21swapper/722:50:527
60899113112,1cyclictest0-21swapper/523:54:125
59699113113,0cyclictest37-21ksoftirqd/300:24:423
58399113113,0cyclictest21-21ksoftirqd/100:06:391
61899112110,1cyclictest0-21swapper/719:51:267
60899112111,1cyclictest0-21swapper/523:38:015
60899112111,1cyclictest0-21swapper/521:11:565
60899112111,1cyclictest0-21swapper/521:11:565
60899112111,1cyclictest0-21swapper/519:57:495
59699112112,0cyclictest37-21ksoftirqd/320:16:213
58399112111,0cyclictest21-21ksoftirqd/121:38:131
60899111110,1cyclictest0-21swapper/522:05:185
60099111109,1cyclictest17694-21chk_conn_tcp23:10:054
59699111111,0cyclictest37-21ksoftirqd/323:04:533
59699111111,0cyclictest37-21ksoftirqd/320:53:193
58399111111,0cyclictest21-21ksoftirqd/122:47:131
58399111110,1cyclictest21-21ksoftirqd/123:37:431
57399111108,3cyclictest3-21ksoftirqd/023:46:550
61399110109,1cyclictest0-21swapper/621:57:286
60899110109,1cyclictest0-21swapper/522:24:415
60099110109,1cyclictest0-21swapper/423:30:144
60099110109,1cyclictest0-21swapper/400:07:204
60099110108,2cyclictest0-21swapper/420:36:214
600991100,109cyclictest0-21swapper/400:23:334
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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