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2026-09-07 - 05:48

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #5

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.
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 rackeslot5s.osadl.org (updated Mon Sep 07, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
708992522,2cyclictest14739-21ssh00:23:512
70899250,24cyclictest26809-21diskmemload00:15:062
707992523,1cyclictest0-21swapper/123:36:271
70699250,24cyclictest21061-21ssh00:00:430
70699250,24cyclictest0-21swapper/022:49:130
70699250,0cyclictest0-21swapper/023:54:050
709992422,1cyclictest8721-21ssh22:50:393
709992421,2cyclictest18879-21sh23:29:153
70999240,24cyclictest26809-21diskmemload21:28:203
70999240,23cyclictest26809-21diskmemload00:16:173
70999240,1cyclictest26809-21diskmemload23:55:043
708992423,1cyclictest26809-21diskmemload23:16:362
708992423,0cyclictest18841-21ssh22:59:552
70899242,1cyclictest10633-21ssh21:23:252
70899241,22cyclictest783-21snmpd23:00:022
70899240,3cyclictest0-21swapper/222:43:512
707992423,0cyclictest0-21swapper/123:03:451
707992422,1cyclictest0-21swapper/122:11:491
707992421,2cyclictest5511-21cron19:20:001
70799240,24cyclictest26809-21diskmemload22:07:571
70799240,24cyclictest0-21swapper/123:21:151
70799240,23cyclictest8150-21sh22:20:381
70799240,23cyclictest26809-21diskmemload00:37:541
70799240,23cyclictest0-21swapper/100:02:281
70799240,0cyclictest26809-21diskmemload22:51:311
706992423,1cyclictest0-21swapper/022:17:580
706992422,1cyclictest62550irq/127-eno122:56:460
70699240,23cyclictest26809-21diskmemload23:19:550
70699240,23cyclictest26809-21diskmemload22:06:230
70699240,23cyclictest26809-21diskmemload00:36:000
70699240,0cyclictest0-21swapper/023:40:140
70699240,0cyclictest0-21swapper/023:40:140
709992323,0cyclictest26809-21diskmemload00:21:333
709992323,0cyclictest0-21swapper/321:30:213
709992323,0cyclictest0-21swapper/321:14:093
709992321,1cyclictest0-21swapper/300:06:433
709992320,2cyclictest3727-21sh21:16:573
70999230,23cyclictest0-21swapper/323:42:423
70999230,23cyclictest0-21swapper/323:42:423
70999230,23cyclictest0-21swapper/323:16:113
70999230,23cyclictest0-21swapper/322:49:263
70999230,23cyclictest0-21swapper/322:42:363
70999230,23cyclictest0-21swapper/321:51:333
70999230,23cyclictest0-21swapper/321:45:183
70999230,22cyclictest30447-21ssh23:10:163
70999230,22cyclictest23851-21ssh22:34:573
70999230,22cyclictest22261-21ssh00:31:073
70999230,22cyclictest22156-21ssh22:03:133
70999230,22cyclictest19811-21ssh23:00:483
70999230,22cyclictest17595-21dump-pmu-power19:45:013
70999230,22cyclictest16839-21ssh22:27:403
70999230,1cyclictest0-21swapper/322:17:503
70999230,0cyclictest0-21swapper/323:54:573
70999230,0cyclictest0-21swapper/323:06:223
70999230,0cyclictest0-21swapper/322:57:043
70999230,0cyclictest0-21swapper/300:01:443
708992323,0cyclictest0-21swapper/223:36:272
708992323,0cyclictest0-21swapper/222:46:392
708992323,0cyclictest0-21swapper/222:20:582
708992323,0cyclictest0-21swapper/221:57:112
708992320,2cyclictest29145-21rm22:39:422
70899230,23cyclictest1611-21rm23:12:592
70899230,23cyclictest0-21swapper/223:09:132
70899230,23cyclictest0-21swapper/221:26:412
70899230,22cyclictest3496-21apt-get19:16:392
70899230,22cyclictest29009-21rm21:40:222
70899230,22cyclictest2722-21ssh22:15:502
70899230,22cyclictest26809-21diskmemload23:41:082
70899230,22cyclictest26809-21diskmemload23:41:082
70899230,22cyclictest26809-21diskmemload21:15:512
70899230,22cyclictest23646-21rm21:35:402
70899230,22cyclictest15129-21ssh23:26:202
70899230,22cyclictest0-21swapper/222:10:292
70899230,22cyclictest0-21swapper/200:00:582
70899230,1cyclictest30786-21ssh21:12:462
70899230,1cyclictest26809-21diskmemload00:36:182
70899230,0cyclictest26809-21diskmemload23:22:082
70899230,0cyclictest0-21swapper/222:07:572
707992323,0cyclictest26809-21diskmemload21:57:111
707992323,0cyclictest0-21swapper/123:16:361
707992323,0cyclictest0-21swapper/122:59:551
707992323,0cyclictest0-21swapper/122:45:431
707992323,0cyclictest0-21swapper/121:46:521
707992323,0cyclictest0-21swapper/100:34:271
707992321,2cyclictest20177-21ssh23:59:531
707992321,1cyclictest0-21swapper/121:41:281
707992321,1cyclictest0-21swapper/121:13:131
707992320,2cyclictest9513-21head21:21:491
70799230,23cyclictest0-21swapper/121:26:411
70799230,22cyclictest23583-21sh21:35:361
70799230,22cyclictest23372-21ssh23:32:481
70799230,22cyclictest22363-21awk19:55:011
70799230,22cyclictest1648-21sh23:13:011
70799230,22cyclictest10929-21sh00:20:571
70799230,22cyclictest0-21swapper/121:32:361
70799230,22cyclictest0-21swapper/100:10:581
70799230,0cyclictest26809-21diskmemload23:07:201
70799230,0cyclictest0-21swapper/100:15:061
706992323,0cyclictest26809-21diskmemload21:38:010
706992323,0cyclictest26809-21diskmemload00:17:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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