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2025-07-01 - 10:10

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #6

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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  Intel
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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot6s.osadl.org (updated Tue Jul 01, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
223099880,5rtkit-daemon2229-21rtkit-daemon19:32:461
2673998528,41cyclictest0-21swapper/020:12:420
2673998430,46cyclictest12131-21crond21:12:210
2673998335,29cyclictest1265-21runrttasks20:21:520
2673998232,32cyclictest15334-21taskset21:17:400
2673998231,34cyclictest0-21swapper/000:07:150
2673998120,36cyclictest0-21swapper/023:57:160
2673998030,42cyclictest0-21swapper/021:42:360
2673997936,18cyclictest31061-21taskset19:34:110
2673997928,29cyclictest12464-21taskset20:02:520
2673997834,26cyclictest5155-21head23:12:300
2673997829,41cyclictest0-21swapper/019:22:390
2673997828,43cyclictest0-21swapper/020:37:230
2673997828,34cyclictest0-21swapper/020:37:370
2673997828,32cyclictest0-21swapper/021:27:380
2673997828,32cyclictest0-21swapper/021:27:380
2673997828,30cyclictest0-21swapper/019:42:510
2673997827,34cyclictest0-21swapper/021:02:430
2673997731,39cyclictest0-21swapper/021:12:390
2673997729,30cyclictest31555-21munin-node19:37:520
2673997630,39cyclictest0-21swapper/020:52:510
2673997630,37cyclictest6129-21munin-run22:07:200
2673997528,30cyclictest0-21swapper/020:32:240
2673997527,40cyclictest0-21swapper/022:32:500
2673997526,32cyclictest0-21swapper/023:07:410
2673997429,29cyclictest0-21swapper/021:51:560
2673997427,30cyclictest0-21swapper/018:47:460
2673997426,29cyclictest0-21swapper/018:58:030
2673997337,29cyclictest18429-21strings19:07:570
2673997332,34cyclictest1160-21snmpd23:26:530
2673997328,38cyclictest0-21swapper/021:32:410
2673997328,37cyclictest0-21swapper/023:02:420
2673997327,29cyclictest0-21swapper/021:40:550
2673997325,41cyclictest0-21swapper/022:12:550
2673997325,41cyclictest0-21swapper/022:12:550
2673997325,33cyclictest0-21swapper/022:52:320
2673997235,30cyclictest26783-21head19:27:370
2673997225,40cyclictest0-21swapper/023:47:450
2673997221,43cyclictest0-21swapper/021:22:580
2673997128,25cyclictest17420-21switchtime22:27:520
2673997126,29cyclictest0-21swapper/020:08:450
2673997125,40cyclictest0-21swapper/018:43:270
2673997124,33cyclictest0-21swapper/019:52:580
2673997120,31cyclictest0-21swapper/023:57:300
2673997029,33cyclictest12207-21crond18:57:270
2673996934,19cyclictest1265-21runrttasks19:17:390
2673996934,19cyclictest1265-21runrttasks19:17:390
2673996931,31cyclictest2898-21munin-node18:37:500
2673996931,31cyclictest2898-21munin-node18:37:500
2673996927,36cyclictest14869-21processes22:22:510
2673996926,14cyclictest0-21swapper/020:43:540
2673996925,38cyclictest0-21swapper/022:01:500
2673996925,30cyclictest0-21swapper/019:48:420
2673996922,32cyclictest0-21swapper/023:29:230
2673996921,40cyclictest0-21swapper/019:17:100
2673996848,12cyclictest2660-21munin-run18:37:280
2673996835,26cyclictest17078-21grep23:37:460
2673996835,26cyclictest17078-21grep23:37:460
2673996826,35cyclictest0-21swapper/022:07:340
2673996825,36cyclictest0-21swapper/022:42:190
2673996825,15cyclictest0-21swapper/019:02:510
2673996824,29cyclictest0-21swapper/023:42:440
2673996823,36cyclictest10099-21ntpq19:57:550
2673996819,16cyclictest0-21swapper/020:47:520
2673996819,16cyclictest0-21swapper/020:47:520
268199674,54cyclictest0-21swapper/323:42:493
2678996739,12cyclictest0-21swapper/121:02:441
2678996738,13cyclictest0-21swapper/118:52:591
2673996745,16cyclictest0-21swapper/021:52:420
2673996722,39cyclictest0-21swapper/022:51:000
2678996639,12cyclictest0-21swapper/118:37:591
2678996639,12cyclictest0-21swapper/118:37:591
2673996628,31cyclictest32293-21sshd23:01:030
2673996624,35cyclictest0-21swapper/023:33:290
2673996623,28cyclictest0-21swapper/022:42:470
2673996622,36cyclictest0-21swapper/020:22:450
2673996537,22cyclictest6043-21grep20:57:440
2678996435,13cyclictest0-21swapper/118:47:501
2673996420,37cyclictest0-21swapper/022:20:520
2673996330,27cyclictest0-21swapper/023:17:400
23092623,12sleep30-21swapper/321:57:423
268199614,50cyclictest0-21swapper/319:02:273
268199614,49cyclictest0-21swapper/321:57:213
2678996039,14cyclictest0-21swapper/120:53:101
223099600,8rtkit-daemon0-21swapper/122:33:013
223099600,7rtkit-daemon0-21swapper/122:37:543
223099600,7rtkit-daemon0-21swapper/122:02:552
223099600,7rtkit-daemon0-21swapper/119:47:532
268199595,46cyclictest1265-21runrttasks22:42:483
268199594,48cyclictest0-21swapper/320:32:243
268199594,48cyclictest0-21swapper/320:02:573
268199594,48cyclictest0-21swapper/300:07:163
223099590,7rtkit-daemon0-21swapper/119:28:012
268199585,46cyclictest0-21swapper/321:02:393
268199584,48cyclictest0-21swapper/320:27:243
268199584,47cyclictest0-21swapper/320:37:243
268199584,46cyclictest15515-21taskset20:09:293
162622583,12sleep10-21swapper/119:03:041
268199574,47cyclictest0-21swapper/320:22:253
268199574,46cyclictest0-21swapper/319:47:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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