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2025-05-09 - 05:53

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #4

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 rack0slot4s.osadl.org (updated Fri May 09, 2025 00:46:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14579372377370,5sleep10-21swapper/119:09:091
14577152373350,6sleep120-21swapper/1219:06:394
14576682369331,31sleep130-21swapper/1319:06:085
14579712361353,5sleep50-21swapper/519:09:2911
14576632355346,6sleep110-21swapper/1119:06:063
14577522354334,13sleep60-21swapper/619:07:0512
14576942353334,12sleep100-21swapper/1019:06:212
14576472352332,13sleep150-21swapper/1519:05:547
14578012351329,14sleep30-21swapper/319:07:349
14578752350331,13sleep20-21swapper/219:08:218
14577062350330,12sleep40-21swapper/419:06:3110
14579032349329,13sleep80-21swapper/819:08:4414
14577732348326,15sleep140-21swapper/1419:07:136
14576592348327,14sleep70-21swapper/719:06:0213
14578822347328,12sleep90-21swapper/919:08:2815
14577762345325,13sleep00-21swapper/019:07:150
1458485994545,0cyclictest0-21swapper/820:33:0514
1458485994343,0cyclictest0-21swapper/820:58:4114
1458485993636,0cyclictest0-21swapper/823:06:4114
145851199331,1cyclictest0-21swapper/1523:29:467
145850199330,30cyclictest0-21swapper/1219:45:164
1458479993329,4cyclictest1813-21snmpd22:24:2912
1458471993327,6cyclictest1813-21snmpd23:06:1310
1458469993330,3cyclictest0-21swapper/322:15:309
1458469993327,6cyclictest1567950-21kworker/3:1+events20:58:419
1458469993327,6cyclictest0-21swapper/323:06:419
145845999330,30cyclictest0-21swapper/020:00:140
145849999321,30cyclictest0-21swapper/1120:59:353
145849199320,29cyclictest0-21swapper/922:50:1615
145848599320,29cyclictest0-21swapper/819:50:1314
145847999320,30cyclictest0-21swapper/623:10:3012
1458469993232,0cyclictest0-21swapper/321:29:359
1458511993128,3cyclictest1813-21snmpd21:58:267
1458511993123,2cyclictest1813-21snmpd20:05:377
1458509993130,1cyclictest1813-21snmpd22:25:086
1458509993130,1cyclictest1495522-21ethtool19:50:136
145850999310,30cyclictest0-21swapper/1423:52:496
1458504993129,2cyclictest0-21swapper/1323:53:175
1458504993127,4cyclictest1813-21snmpd19:48:395
145850499310,30cyclictest0-21swapper/1323:17:065
145849999310,30cyclictest0-21swapper/1121:44:503
145849999310,30cyclictest0-21swapper/1119:17:023
145849999310,30cyclictest0-21swapper/1119:11:443
145849599310,30cyclictest0-21swapper/1019:36:452
145849199310,30cyclictest0-21swapper/921:59:1615
145848599311,30cyclictest0-21swapper/820:09:1014
145848199310,30cyclictest0-21swapper/723:30:1713
145847599311,29cyclictest0-21swapper/521:51:1911
1458469993130,1cyclictest1813-21snmpd20:33:149
145846699311,1cyclictest0-21swapper/219:44:458
1458464993127,4cyclictest1639809-21mii-tool21:10:161
145845999310,30cyclictest0-21swapper/021:38:430
145845999310,1cyclictest0-21swapper/000:04:300
1458511993029,1cyclictest1813-21snmpd19:38:017
1458509993029,1cyclictest1813-21snmpd22:01:046
1458504993029,1cyclictest1813-21snmpd23:14:045
1458504993029,1cyclictest1813-21snmpd20:50:595
1458504993029,1cyclictest1813-21snmpd19:54:485
145850499300,29cyclictest0-21swapper/1323:20:205
1458501993029,1cyclictest1813-21snmpd21:06:124
145850199300,30cyclictest0-21swapper/1221:33:304
145850199300,27cyclictest0-21swapper/1220:00:144
1458499993029,1cyclictest0-21swapper/1119:46:303
145849999300,1cyclictest0-21swapper/1121:45:373
1458495993029,1cyclictest1856139-21mii-tool23:55:162
1458495993029,1cyclictest1813-21snmpd22:48:382
145849599300,29cyclictest0-21swapper/1021:42:162
1458491993029,1cyclictest1813-21snmpd22:04:2215
1458491993029,1cyclictest1813-21snmpd21:13:5715
1458485993029,1cyclictest1813-21snmpd22:20:2314
1458485993029,1cyclictest1813-21snmpd19:37:3314
145848599300,1cyclictest0-21swapper/822:52:3714
145848199300,1cyclictest0-21swapper/721:56:3113
1458479993029,1cyclictest1593134-21mii-tool21:00:1612
145847999300,1cyclictest0-21swapper/623:25:1812
1458475993029,1cyclictest1813-21snmpd00:38:4511
1458475993029,1cyclictest0-21swapper/521:04:2411
1458475993029,1cyclictest0-21swapper/500:32:3311
1458475993029,1cyclictest0-21swapper/500:32:3311
145847599300,30cyclictest0-21swapper/522:36:0611
145847599300,29cyclictest0-21swapper/523:19:1011
1458471993029,1cyclictest1813-21snmpd23:28:0710
1458471993029,1cyclictest1491256-21mii-tool19:45:1610
145847199300,1cyclictest0-21swapper/421:53:4010
1458469993029,1cyclictest1813-21snmpd23:20:339
1458469993029,1cyclictest1813-21snmpd20:48:599
145846999300,30cyclictest0-21swapper/321:04:189
145846999300,30cyclictest0-21swapper/300:01:559
145846999300,1cyclictest0-21swapper/322:14:359
1458466993029,1cyclictest1813-21snmpd21:43:108
1458466993029,1cyclictest1813-21snmpd19:18:268
145846499300,29cyclictest0-21swapper/121:15:151
145846499300,29cyclictest0-21swapper/121:15:151
1458459993029,1cyclictest0-21swapper/020:05:170
145845999300,29cyclictest0-21swapper/023:32:550
145845999300,1cyclictest0-21swapper/020:20:580
1458511992928,1cyclictest1813-21snmpd23:32:047
1458511992927,2cyclictest1813-21snmpd19:41:247
1458511992926,3cyclictest0-21swapper/1500:25:117
1458511992926,3cyclictest0-21swapper/1500:25:117
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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