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2025-07-02 - 18:11

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, slot #7

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.
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.

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 50 highest latencies:
System rackfslot7s.osadl.org (updated Wed Jul 02, 2025 00:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147134799278010,2766cyclictest1503736-21kworker/1:1+events20:50:171
147134799277015,2751cyclictest1528039-21kworker/1:0+events22:15:221
147134799274813,2732cyclictest1484266-21kworker/1:2+events19:55:201
147134099271413,2696cyclictest1575287-21kworker/0:2+events00:30:120
147135499264313,2626cyclictest1544233-21kworker/3:2+events23:00:213
147135499261812,2601cyclictest1554484-21kworker/3:0+events23:25:193
147134099253713,2521cyclictest1487381-21kworker/0:0+events20:00:170
14713479925354,2527cyclictest1505871-21kworker/1:2+events20:55:391
147134799253011,2516cyclictest1492382-21kworker/1:1+events20:20:551
147135499251912,2503cyclictest1502053-21kworker/3:1+events20:47:173
147134799251812,2503cyclictest1492382-21kworker/1:1+events20:30:471
14713409924798,2467cyclictest1501949-21kworker/0:2+events20:45:210
14713409924746,2464cyclictest1479214-21kworker/0:1+events19:40:470
147134099247212,2456cyclictest1502254-21kworker/0:3+events21:03:560
147134099247212,2456cyclictest1502254-21kworker/0:3+events21:03:560
147134799245912,2443cyclictest1536203-21kworker/1:2+events22:36:251
147134799245912,2443cyclictest1536203-21kworker/1:2+events22:36:251
147134799245411,2439cyclictest1472761-21kworker/1:1+events19:30:221
147135499245111,2437cyclictest1510589-21kworker/3:0+events21:13:083
147134799244811,2435cyclictest1546271-21kworker/1:2+events23:15:481
147134799244512,2431cyclictest1492382-21kworker/1:1+events20:15:081
147134799244410,2430cyclictest1482601-21kworker/1:0+events19:48:261
147134799244212,2427cyclictest1508425-21kworker/1:1+events21:01:171
147134799244212,2427cyclictest1508425-21kworker/1:1+events21:01:171
147134799244112,2426cyclictest1544263-21kworker/1:1+events23:10:341
147134799244112,2425cyclictest1502133-21kworker/1:2+events20:46:531
147134799244111,2426cyclictest1484266-21kworker/1:2+events20:09:271
147134799244012,2425cyclictest1562337-21kworker/1:0+events23:48:041
147134799244010,2426cyclictest1510294-21kworker/1:2+events21:22:541
147135499243912,2424cyclictest1537734-21kworker/3:1+events22:35:173
147135499243912,2424cyclictest1537734-21kworker/3:1+events22:35:173
147134799243812,2422cyclictest1480884-21kworker/1:1+events19:38:531
147135499243612,2420cyclictest1550887-21kworker/3:2+events23:34:003
147134799243612,2421cyclictest1516604-21kworker/1:0+events21:36:131
147135499243512,2420cyclictest1526264-21kworker/3:0+events22:05:293
147135499243412,2418cyclictest1550887-21kworker/3:2+events23:23:273
147135499243412,2418cyclictest1519834-21kworker/3:0+events21:38:503
147135499243312,2418cyclictest1570508-21kworker/3:2+events00:12:453
147135499243212,2417cyclictest1470965-21kworker/3:1+events19:16:203
147135499243111,2416cyclictest1474742-21kworker/3:0+events19:41:343
147134099243012,2414cyclictest1500269-21kworker/0:0+events20:39:110
14713549924297,2419cyclictest1481385-21kworker/3:1+events19:55:423
147135499242912,2413cyclictest1497221-21kworker/3:2+events20:29:173
147135499242912,2413cyclictest1493713-21kworker/3:1+events20:17:033
147135499242712,2412cyclictest1510589-21kworker/3:0+events21:09:393
147135499242612,2410cyclictest1519834-21kworker/3:0+events21:43:023
147135499242311,2409cyclictest1507117-21kworker/3:1+events21:01:413
147135499242311,2409cyclictest1507117-21kworker/3:1+events21:01:413
147134799241812,2403cyclictest1480884-21kworker/1:1+events19:43:511
147134799241210,2398cyclictest1472761-21kworker/1:1+events19:29:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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