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2025-08-21 - 21:32

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 Thu Aug 21, 2025 00:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5232499325716,3236cyclictest131846-21kworker/3:2+events23:14:193
5232399297214,2952cyclictest90841-21kworker/2:1+events21:15:142
5232299294114,2924cyclictest128632-21kworker/1:1+events23:25:011
523239928804,2873cyclictest140303-21kworker/2:0+events23:40:212
5232499284813,2832cyclictest110281-21kworker/3:2+events22:10:003
5232499284513,2828cyclictest110281-21kworker/3:2+events22:15:193
5232499277713,2760cyclictest135386-21kworker/3:2+events23:25:263
5232399277213,2757cyclictest116940-21kworker/2:2+events22:40:212
5232399276913,2752cyclictest68585-21kworker/2:0+events20:05:212
5232399275013,2733cyclictest142153-21kworker/2:2+events00:03:452
5232199268113,2664cyclictest146925-21kworker/0:0+events00:00:160
5232199266213,2645cyclictest121884-21kworker/0:0+events22:45:170
5232199264213,2624cyclictest151871-21kworker/0:1+events00:20:190
5232499263411,2619cyclictest153301-21kworker/3:1+events00:18:013
5232499258912,2573cyclictest145631-21kworker/3:0+events00:12:393
5232299258512,2569cyclictest86211-21kworker/1:2+events21:11:021
5232499257712,2560cyclictest153301-21kworker/3:1+events00:35:133
5232199257512,2560cyclictest146925-21kworker/0:0+events00:13:010
5232199257412,2558cyclictest142120-21kworker/0:1+events23:55:170
523219925719,2558cyclictest137181-21kworker/0:0+events23:33:110
5232499256612,2552cyclictest86104-21kworker/3:0+events20:55:043
5232199256612,2551cyclictest87559-21kworker/0:1+events20:58:260
5232499256512,2549cyclictest92602-21kworker/3:0+events21:32:273
5232199255911,2545cyclictest94137-21kworker/0:2+events21:20:140
5232199255812,2542cyclictest58906-21kworker/0:1+events19:29:340
5232499255312,2537cyclictest121877-21kworker/3:0+events22:47:363
5232199255211,2537cyclictest128538-21kworker/0:0+events23:03:010
5232499253812,2524cyclictest153301-21kworker/3:1+events00:32:093
5232499253812,2522cyclictest147521-21kworker/3:1+events00:01:483
5232499253712,2521cyclictest116846-21kworker/3:1+events22:59:393
5232199253512,2519cyclictest102266-21kworker/0:0+events21:42:180
5232199253112,2515cyclictest103947-21kworker/0:1+events21:57:270
5232199252411,2509cyclictest79770-21kworker/0:0+events20:37:410
5232499251810,2504cyclictest66999-21kworker/3:1+events19:56:133
523249925175,2509cyclictest110281-21kworker/3:2+events22:28:363
5232199250912,2494cyclictest126718-21kworker/0:2+events23:22:220
5232499250711,2493cyclictest130227-21kworker/3:1+events23:18:553
5232299250712,2491cyclictest150501-21kworker/1:3+events00:15:201
5232299250111,2487cyclictest117432-21kworker/1:1+events22:35:251
5232199250012,2484cyclictest158252-21kworker/0:1+events00:34:030
523219924987,2487cyclictest97399-21kworker/0:1+events21:29:460
5232199249812,2482cyclictest144305-21kworker/0:2+events23:52:350
5232499249712,2481cyclictest58844-21kworker/3:2+events19:30:203
5232499249412,2479cyclictest81204-21kworker/3:2+events20:38:273
5232299249410,2480cyclictest57120-21kworker/1:2+events19:29:101
5232199249412,2479cyclictest71918-21kworker/0:2+events20:16:140
5232199249311,2479cyclictest76423-21kworker/0:1+events20:30:110
5232199249212,2476cyclictest81411-21kworker/0:1+events20:44:340
5232199249212,2476cyclictest76423-21kworker/0:1+events20:24:080
5232199249210,2478cyclictest156580-21kworker/0:0+events00:28:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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