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2026-05-20 - 08:43

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 Wed May 20, 2026 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1413799280,0cyclictest0-21swapper/323:34:473
14136992722,4cyclictest0-21swapper/200:14:502
14134992623,2cyclictest0-21swapper/022:54:420
14137992523,1cyclictest7796-21diskmemload23:09:163
1413799250,24cyclictest0-21swapper/322:21:443
14136992522,1cyclictest0-21swapper/221:38:522
14136992520,2cyclictest0-21swapper/221:34:132
1413699250,24cyclictest7796-21diskmemload22:12:082
1413699250,24cyclictest7796-21diskmemload00:04:252
1413699250,24cyclictest2240-21ssh22:28:442
1413599250,24cyclictest7796-21diskmemload22:36:091
1413599250,24cyclictest595-21ssh23:24:071
14134992524,1cyclictest62550irq/127-eno121:51:000
1413499251,24cyclictest62550irq/127-eno123:40:300
1413499250,24cyclictest7796-21diskmemload22:59:320
1413499250,0cyclictest0-21swapper/022:23:390
14137992423,1cyclictest7796-21diskmemload23:27:383
14137992423,1cyclictest7796-21diskmemload00:05:153
14137992423,1cyclictest331rcuc/321:47:113
14137992422,1cyclictest17727-21sh21:17:513
14137992422,1cyclictest0-21swapper/300:29:453
1413799240,23cyclictest7796-21diskmemload21:27:293
1413799240,23cyclictest22010-21sh23:14:303
1413799240,23cyclictest0-21swapper/322:43:293
1413799240,23cyclictest0-21swapper/322:27:453
1413799240,23cyclictest0-21swapper/322:15:383
1413799240,23cyclictest0-21swapper/321:39:353
1413799240,23cyclictest0-21swapper/321:21:003
14136992422,1cyclictest6974-21apt-get00:27:362
1413699240,23cyclictest0-21swapper/223:02:342
1413699240,1cyclictest3380-21ssh23:27:332
1413699240,0cyclictest7796-21diskmemload21:57:092
14135992422,1cyclictest0-21swapper/123:40:571
1413599240,24cyclictest0-21swapper/122:32:061
1413599240,23cyclictest7796-21diskmemload23:39:221
1413599240,23cyclictest7796-21diskmemload21:22:541
1413599240,23cyclictest2508-21rm22:29:051
1413599240,23cyclictest0-21swapper/123:49:001
1413599240,1cyclictest28995-21ssh21:55:421
1413599240,0cyclictest0-21swapper/121:36:301
1413599240,0cyclictest0-21swapper/121:18:131
1413499240,24cyclictest0-21swapper/023:12:250
1413499240,23cyclictest28536-21cron19:40:000
1413499240,22cyclictest0-21swapper/022:49:160
1413499240,1cyclictest62550irq/127-eno122:39:570
1413499240,1cyclictest0-21swapper/021:26:550
1413499240,0cyclictest0-21swapper/023:01:000
1413499240,0cyclictest0-21swapper/000:35:380
14137992323,0cyclictest0-21swapper/323:56:133
14137992323,0cyclictest0-21swapper/322:51:113
14137992323,0cyclictest0-21swapper/321:42:153
14137992323,0cyclictest0-21swapper/300:00:243
14137992321,1cyclictest11390-21apt-get22:37:353
14137992320,2cyclictest2673-21sh22:01:153
14137992320,2cyclictest23186-21ssh21:50:343
1413799230,2cyclictest724-21ssh00:21:543
1413799230,23cyclictest0-21swapper/323:43:183
1413799230,23cyclictest0-21swapper/322:31:023
1413799230,23cyclictest0-21swapper/321:31:343
1413799230,22cyclictest19753-21ptp4l-jitter00:37:423
1413799230,22cyclictest0-21swapper/321:12:363
1413799230,1cyclictest0-21swapper/323:53:383
1413799230,0cyclictest7796-21diskmemload22:56:033
14136992323,0cyclictest29041-21apt-get19:42:342
14136992323,0cyclictest0-21swapper/222:17:352
14136992323,0cyclictest0-21swapper/221:22:222
14136992321,2cyclictest11121-21ssh00:30:292
14136992321,1cyclictest25389-21ssh22:21:172
14136992321,1cyclictest17287-21ssh23:10:342
14136992321,1cyclictest14818-21sh00:05:072
14136992321,1cyclictest12351-21missed_timers22:37:392
14136992320,3cyclictest0-21swapper/221:15:142
14136992320,2cyclictest27423-21ssh00:16:492
1413699230,2cyclictest18736-21ssh23:40:092
1413699230,23cyclictest7796-21diskmemload21:12:322
1413699230,22cyclictest9036-21ssh22:07:162
1413699230,22cyclictest4160-21ssh23:56:152
1413699230,22cyclictest31274-21ssh23:51:422
1413699230,22cyclictest2813-21rm22:01:262
1413699230,22cyclictest26313-21ssh21:26:302
1413699230,22cyclictest17136-21ssh22:42:312
1413699230,22cyclictest14533-21ssh21:43:042
1413699230,22cyclictest0-21swapper/223:06:392
1413699230,22cyclictest0-21swapper/222:50:312
1413699230,22cyclictest0-21swapper/222:47:012
14135992323,0cyclictest7796-21diskmemload23:50:371
14135992323,0cyclictest0-21swapper/123:34:251
14135992323,0cyclictest0-21swapper/123:13:321
14135992323,0cyclictest0-21swapper/123:06:531
14135992323,0cyclictest0-21swapper/122:12:111
14135992323,0cyclictest0-21swapper/100:25:441
14135992323,0cyclictest0-21swapper/100:22:241
14135992323,0cyclictest0-21swapper/100:07:551
14135992322,1cyclictest24686-21apt-get21:52:331
14135992321,1cyclictest8889-21munin-run00:00:011
14135992320,2cyclictest21367-21idleruntime-cro19:25:011
1413599230,2cyclictest1931-21rm23:25:331
1413599230,23cyclictest0-21swapper/122:22:111
1413599230,22cyclictest7661-21ssh22:05:171
1413599230,22cyclictest32166-21sh22:55:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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