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2026-06-14 - 04:06

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 Sun Jun 14, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29980992929,0cyclictest0-21swapper/123:37:201
29990992726,1cyclictest34-21ksoftirqd/323:37:203
29980992624,1cyclictest0-21swapper/122:50:521
2999099250,24cyclictest29812-21ssh22:48:063
2998099252,22cyclictest607-21in:imuxsock22:40:001
2998099250,24cyclictest0-21swapper/100:32:441
2998099250,1cyclictest0-21swapper/123:32:561
29976992524,1cyclictest62550irq/127-eno100:20:070
2997699250,24cyclictest23610-21diskmemload00:10:120
2997699250,23cyclictest23610-21diskmemload22:14:230
29990992423,1cyclictest12068-21ssh00:32:443
29990992423,1cyclictest0-21swapper/323:32:563
29990992422,1cyclictest23610-21diskmemload21:39:523
2999099240,24cyclictest0-21swapper/322:18:293
2999099240,23cyclictest27788-21ssh23:15:333
2999099240,23cyclictest10851-21ssh21:29:363
29986992423,1cyclictest0-21swapper/222:19:392
29986992422,1cyclictest0-21swapper/200:07:172
29986992421,2cyclictest3405-21/usr/sbin/munin23:24:492
29986992420,4cyclictest0-21swapper/222:54:152
29986992419,4cyclictest0-21swapper/200:27:472
2998699240,23cyclictest0-21swapper/223:46:322
2998699240,23cyclictest0-21swapper/222:34:392
2998699240,23cyclictest0-21swapper/200:10:182
2998699240,0cyclictest0-21swapper/222:47:422
2998099240,23cyclictest6410-21awk20:35:011
2998099240,23cyclictest23610-21diskmemload23:14:451
2998099240,23cyclictest23610-21diskmemload22:30:441
2998099240,1cyclictest29567-21ssh21:45:321
2998099240,0cyclictest0-21swapper/123:21:301
2997699240,23cyclictest23610-21diskmemload23:51:380
2997699240,23cyclictest23610-21diskmemload23:35:590
2997699240,1cyclictest6375-21ssh22:25:000
29990992323,0cyclictest0-21swapper/322:35:453
29990992323,0cyclictest0-21swapper/321:46:443
29990992321,1cyclictest0-21swapper/323:29:423
29990992320,2cyclictest24307-21ssh21:10:363
29990992320,2cyclictest14239-21sh22:02:133
2999099230,23cyclictest25678-21ssh00:14:473
2999099230,23cyclictest0-21swapper/323:04:583
2999099230,23cyclictest0-21swapper/300:39:263
2999099230,23cyclictest0-21swapper/300:27:533
2999099230,22cyclictest7536-21ssh22:57:243
2999099230,22cyclictest2450-21rm21:50:263
2999099230,22cyclictest13496-21ssh00:04:243
2999099230,22cyclictest1039-21sh00:21:593
2999099230,22cyclictest0-21swapper/322:26:343
2999099230,20cyclictest0-21swapper/323:06:543
2999099230,1cyclictest29182-21munin-run20:15:003
2999099230,0cyclictest23610-21diskmemload23:23:273
2999099230,0cyclictest0-21swapper/322:42:233
2999099230,0cyclictest0-21swapper/321:57:063
2999099230,0cyclictest0-21swapper/321:40:173
29986992323,0cyclictest0-21swapper/223:37:382
29986992323,0cyclictest0-21swapper/223:26:262
29986992323,0cyclictest0-21swapper/223:15:282
29986992323,0cyclictest0-21swapper/222:59:002
29986992323,0cyclictest0-21swapper/222:13:042
29986992323,0cyclictest0-21swapper/200:33:102
29986992323,0cyclictest0-21swapper/200:00:082
29986992322,1cyclictest23610-21diskmemload22:04:132
29986992322,1cyclictest23610-21diskmemload21:55:372
29986992321,1cyclictest31603-21perf20:20:002
29986992321,1cyclictest0-21swapper/219:15:012
29986992320,3cyclictest0-21swapper/221:19:522
2998699230,2cyclictest5914-21sh22:24:472
2998699230,23cyclictest0-21swapper/222:28:192
2998699230,23cyclictest0-21swapper/221:31:572
2998699230,23cyclictest0-21swapper/221:25:202
2998699230,23cyclictest0-21swapper/221:20:492
2998699230,22cyclictest6211-21kworker/u8:123:30:302
2998699230,22cyclictest0-21swapper/221:12:592
2998699230,1cyclictest0-21swapper/223:13:442
2998699230,1cyclictest0-21swapper/222:07:242
2998699230,0cyclictest0-21swapper/200:19:132
29980992323,0cyclictest0-21swapper/123:26:001
29980992323,0cyclictest0-21swapper/123:05:171
29980992323,0cyclictest0-21swapper/122:55:581
29980992323,0cyclictest0-21swapper/122:42:331
29980992323,0cyclictest0-21swapper/122:13:181
29980992323,0cyclictest0-21swapper/122:00:231
29980992323,0cyclictest0-21swapper/121:24:011
29980992321,1cyclictest23610-21diskmemload23:50:521
29980992321,1cyclictest0-21swapper/121:51:141
29980992321,1cyclictest0-21swapper/121:25:551
29980992321,1cyclictest0-21swapper/120:40:011
29980992321,1cyclictest0-21swapper/100:15:541
2998099230,2cyclictest1432-21sh22:20:061
2998099230,23cyclictest0-21swapper/123:15:581
2998099230,23cyclictest0-21swapper/100:36:081
2998099230,22cyclictest372-21ssh00:21:051
2998099230,22cyclictest21089-21apt-get22:09:371
2998099230,22cyclictest0-21swapper/121:40:511
2998099230,21cyclictest313-21systemd-journal00:00:011
2998099230,0cyclictest0-21swapper/123:45:201
29976992323,0cyclictest23610-21diskmemload23:46:410
29976992323,0cyclictest23610-21diskmemload00:30:450
29976992323,0cyclictest0-21swapper/022:58:410
29976992323,0cyclictest0-21swapper/021:56:210
29976992323,0cyclictest0-21swapper/021:34:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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