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2025-07-10 - 19:50

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 Thu Jul 10, 2025 00:46:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15348332373367,4sleep100-21swapper/1019:05:092
15348332373367,4sleep100-21swapper/1019:05:092
15381012361321,14sleep20-21swapper/219:07:258
15381012361321,14sleep20-21swapper/219:07:258
15380862356317,13sleep90-21swapper/919:07:1615
15380862356317,13sleep90-21swapper/919:07:1615
15379852355337,12sleep80-21swapper/819:05:5514
15379852355337,12sleep80-21swapper/819:05:5514
15381332354316,13sleep00-21swapper/019:07:560
15381332354316,13sleep00-21swapper/019:07:550
15379562354346,5sleep150-21swapper/1519:05:307
15379562354346,5sleep150-21swapper/1519:05:307
15381992352311,32sleep70-21swapper/719:08:5113
15381992352311,32sleep70-21swapper/719:08:5113
15381522352342,7sleep130-21swapper/1319:08:085
15381522352342,7sleep130-21swapper/1319:08:085
15382722348328,13sleep40-21swapper/419:09:5210
15382722348328,13sleep40-21swapper/419:09:5210
15381272348326,14sleep110-21swapper/1119:07:503
15381272348326,14sleep110-21swapper/1119:07:503
15382742346326,13sleep60-21swapper/619:09:5512
15382742346326,13sleep60-21swapper/619:09:5512
15382692346327,12sleep10-21swapper/119:09:501
15382692346327,12sleep10-21swapper/119:09:501
15379722346325,14sleep140-21swapper/1419:05:466
15379722346325,14sleep140-21swapper/1419:05:466
15380422345324,14sleep50-21swapper/519:06:4111
15380422345324,14sleep50-21swapper/519:06:4111
15379702344322,14sleep120-21swapper/1219:05:434
15379702344322,14sleep120-21swapper/1219:05:434
15380402341321,13sleep30-21swapper/319:06:389
15380402341321,13sleep30-21swapper/319:06:389
153872499459,25cyclictest0-21swapper/1419:57:426
1538697994343,0cyclictest0-21swapper/500:01:2711
1538712993939,0cyclictest0-21swapper/1023:28:422
1538712993636,0cyclictest0-21swapper/1023:15:462
1538722993513,0cyclictest0-21swapper/1321:05:415
1538712993535,0cyclictest0-21swapper/1000:05:482
1538728993433,1cyclictest1477774-21kworker/15:1+events22:26:277
1538712993434,0cyclictest0-21swapper/1022:36:362
153872499339,11cyclictest0-21swapper/1420:19:406
153872499339,11cyclictest0-21swapper/1419:24:456
1538712993333,0cyclictest0-21swapper/1022:47:002
1538712993333,0cyclictest0-21swapper/1022:26:512
1538712993333,0cyclictest0-21swapper/1022:23:392
1538712993333,0cyclictest0-21swapper/1021:47:172
1538712993333,0cyclictest0-21swapper/1021:37:562
1538712993333,0cyclictest0-21swapper/1021:32:022
1538712993333,0cyclictest0-21swapper/1021:26:492
1538712993333,0cyclictest0-21swapper/1020:45:472
1538712993333,0cyclictest0-21swapper/1019:21:092
1538697993333,0cyclictest0-21swapper/500:10:2511
153872899320,29cyclictest0-21swapper/1523:51:467
153872899320,29cyclictest0-21swapper/1523:08:287
153872899320,29cyclictest0-21swapper/1522:37:367
153872899320,29cyclictest0-21swapper/1522:00:517
153872899320,29cyclictest0-21swapper/1521:12:497
153872899320,29cyclictest0-21swapper/1521:06:277
153872899320,29cyclictest0-21swapper/1520:59:437
153872899320,29cyclictest0-21swapper/1520:11:407
153872899320,29cyclictest0-21swapper/1520:03:317
153872899320,29cyclictest0-21swapper/1519:46:337
153872899320,29cyclictest0-21swapper/1519:12:477
153872899320,29cyclictest0-21swapper/1500:37:047
153872499321,30cyclictest0-21swapper/1420:51:546
1538712993232,0cyclictest0-21swapper/1023:49:562
1538712993232,0cyclictest0-21swapper/1023:22:262
1538712993232,0cyclictest0-21swapper/1022:13:082
1538712993232,0cyclictest0-21swapper/1022:13:072
1538712993232,0cyclictest0-21swapper/1022:08:452
1538712993232,0cyclictest0-21swapper/1022:08:442
1538712993232,0cyclictest0-21swapper/1022:03:172
1538712993232,0cyclictest0-21swapper/1021:41:242
1538712993232,0cyclictest0-21swapper/1021:15:392
1538712993232,0cyclictest0-21swapper/1020:56:372
1538712993232,0cyclictest0-21swapper/1020:31:332
1538712993232,0cyclictest0-21swapper/1020:16:362
1538712993232,0cyclictest0-21swapper/1019:58:532
1538712993232,0cyclictest0-21swapper/1019:53:382
1538712993232,0cyclictest0-21swapper/1019:30:502
153870799320,29cyclictest0-21swapper/823:10:1414
1538699993226,6cyclictest1726332-21ethtool21:20:1512
153869799320,29cyclictest0-21swapper/519:40:1211
1538728993129,1cyclictest1813-21snmpd19:58:047
1538728993126,3cyclictest0-21swapper/1521:46:317
153872899310,28cyclictest0-21swapper/1522:53:197
153872899310,28cyclictest0-21swapper/1521:53:277
153872899310,28cyclictest0-21swapper/1500:23:247
1538722993130,1cyclictest1813-21snmpd21:53:465
153871499310,30cyclictest0-21swapper/1120:55:293
1538712993131,0cyclictest0-21swapper/1023:58:122
1538712993131,0cyclictest0-21swapper/1023:52:042
1538712993131,0cyclictest0-21swapper/1023:36:042
1538712993131,0cyclictest0-21swapper/1023:06:362
1538712993131,0cyclictest0-21swapper/1022:56:442
1538712993131,0cyclictest0-21swapper/1022:50:342
1538712993131,0cyclictest0-21swapper/1022:42:502
1538712993131,0cyclictest0-21swapper/1022:33:242
1538712993131,0cyclictest0-21swapper/1021:14:352
1538712993131,0cyclictest0-21swapper/1020:12:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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