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2025-05-09 - 05:40

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #3

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 rack0slot3s.osadl.org (updated Fri May 09, 2025 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4199742243226,10sleep40-21swapper/419:08:204
4198102237228,6sleep50-21swapper/519:06:035
4200502235215,13sleep20-21swapper/219:09:212
4198212235217,12sleep70-21swapper/719:06:137
4199162234213,13sleep60-21swapper/619:07:336
4198082234214,13sleep30-21swapper/319:06:013
4200662233197,28sleep00-21swapper/019:09:350
4198332233211,14sleep10-21swapper/119:06:231
42037899360,34cyclictest0-21swapper/021:19:040
420396993533,2cyclictest1426-21snmpd20:45:125
420402993332,1cyclictest0-21swapper/721:48:017
420387993232,0cyclictest0-21swapper/320:56:063
42038399318,22cyclictest0-21swapper/220:08:132
420383993130,1cyclictest1426-21snmpd22:09:022
42037899308,21cyclictest0-21swapper/021:10:290
420378993030,0cyclictest0-21swapper/022:25:030
420378993030,0cyclictest0-21swapper/019:52:050
420378993030,0cyclictest0-21swapper/000:38:250
420402992929,0cyclictest0-21swapper/720:21:477
42039899290,0cyclictest0-21swapper/621:20:186
420381992923,4cyclictest0-21swapper/122:14:381
420378992929,0cyclictest0-21swapper/021:58:430
420378992928,1cyclictest0-21swapper/019:27:390
420396992828,0cyclictest0-21swapper/523:15:165
420392992827,1cyclictest459362-21kworker/4:2+events20:35:154
42038399280,27cyclictest0-21swapper/221:52:112
420378992828,0cyclictest0-21swapper/021:04:000
420378992828,0cyclictest0-21swapper/019:16:490
420378992828,0cyclictest0-21swapper/000:01:220
420392992727,0cyclictest0-21swapper/419:39:194
420383992727,0cyclictest0-21swapper/220:11:272
420383992727,0cyclictest0-21swapper/219:58:012
420383992727,0cyclictest0-21swapper/219:22:332
420383992727,0cyclictest0-21swapper/200:36:482
420383992727,0cyclictest0-21swapper/200:08:382
42037899276,21cyclictest0-21swapper/022:50:090
420378992727,0cyclictest0-21swapper/021:33:530
420378992727,0cyclictest0-21swapper/021:28:010
420378992727,0cyclictest0-21swapper/020:10:090
420378992727,0cyclictest0-21swapper/019:33:470
420378992726,1cyclictest504842-21ntpq21:40:200
420378992726,1cyclictest504842-21ntpq21:40:190
420378992726,1cyclictest0-21swapper/019:56:390
420383992626,0cyclictest0-21swapper/221:27:532
420383992626,0cyclictest0-21swapper/221:19:122
420383992626,0cyclictest0-21swapper/221:13:212
420383992626,0cyclictest0-21swapper/219:25:572
420383992626,0cyclictest0-21swapper/200:29:212
420383992626,0cyclictest0-21swapper/200:21:582
42038399260,0cyclictest0-21swapper/223:07:472
42037899265,21cyclictest0-21swapper/020:26:260
420378992626,0cyclictest0-21swapper/019:39:550
42037899260,25cyclictest0-21swapper/020:34:440
420398992525,0cyclictest0-21swapper/623:54:566
42039699250,24cyclictest0-21swapper/523:46:365
420392992525,0cyclictest459362-21kworker/4:2+events23:18:214
420392992523,2cyclictest509938-21awk21:50:184
420387992525,0cyclictest0-21swapper/319:19:033
420383992525,0cyclictest0-21swapper/222:48:342
420383992525,0cyclictest0-21swapper/220:15:532
42038399252,22cyclictest0-21swapper/223:42:572
42037899254,21cyclictest0-21swapper/019:42:570
42037899253,21cyclictest0-21swapper/022:44:130
420378992525,0cyclictest0-21swapper/021:38:160
420378992525,0cyclictest0-21swapper/021:38:150
420378992523,2cyclictest562333-21ntp_states23:25:230
42037899252,21cyclictest0-21swapper/019:22:590
420402992422,2cyclictest1426-21snmpd22:07:367
42039899240,23cyclictest0-21swapper/620:35:116
42039899240,22cyclictest0-21swapper/621:31:466
420396992421,2cyclictest1426-21snmpd21:45:495
420396992421,2cyclictest1426-21snmpd19:22:195
42039299240,23cyclictest0-21swapper/421:34:314
42039299240,21cyclictest0-21swapper/400:36:514
420387992421,2cyclictest1426-21snmpd00:05:483
42038799240,22cyclictest0-21swapper/300:27:363
42038399240,22cyclictest0-21swapper/219:38:272
420381992422,2cyclictest1426-21snmpd21:26:431
420381992421,2cyclictest1426-21snmpd20:32:591
42037899243,21cyclictest0-21swapper/021:54:190
420378992422,2cyclictest1426-21snmpd00:28:580
420378992421,2cyclictest1426-21snmpd20:54:270
420378992412,11cyclictest0-21swapper/000:05:490
42037899240,22cyclictest0-21swapper/022:55:160
42037899240,22cyclictest0-21swapper/022:48:240
42037899240,21cyclictest0-21swapper/020:40:150
420402992323,0cyclictest0-21swapper/722:17:477
420402992321,2cyclictest1426-21snmpd19:12:337
42040299230,22cyclictest0-21swapper/723:32:387
42040299230,22cyclictest0-21swapper/720:07:197
42040299230,22cyclictest0-21swapper/700:05:567
42040299230,21cyclictest0-21swapper/720:51:107
420398992321,2cyclictest1426-21snmpd23:56:446
42039899230,22cyclictest0-21swapper/623:36:296
42039899230,22cyclictest0-21swapper/619:33:406
42039899230,22cyclictest0-21swapper/600:15:426
42039699230,22cyclictest0-21swapper/522:54:285
42039699230,22cyclictest0-21swapper/521:34:045
42039699230,22cyclictest0-21swapper/520:34:055
42039699230,21cyclictest0-21swapper/523:12:285
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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