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2025-07-09 - 07:44

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 09, 2025 00:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
60915799344216,3420cyclictest625433-21kworker/2:2+events20:14:592
6091519931407,3127cyclictest691738-21kworker/0:1+events23:50:120
60915199296512,2948cyclictest622143-21kworker/0:2+events20:00:160
60915399288110,2867cyclictest669530-21kworker/1:2+events22:45:171
60915399288110,2867cyclictest669530-21kworker/1:2+events22:45:171
60915199280212,2785cyclictest610729-21kworker/0:1+events19:25:010
60915399274813,2731cyclictest632056-21kworker/1:2+events20:25:131
60915199270612,2690cyclictest613787-21kworker/0:0+events19:28:270
6091539927039,2690cyclictest628329-21kworker/1:0+events20:20:201
60915199267612,2662cyclictest654153-21kworker/0:2+events21:30:200
60915199266412,2648cyclictest657617-21kworker/0:2+events21:39:490
60916199264013,2623cyclictest630041-21kworker/3:0+events20:15:203
60915199256713,2550cyclictest608828-21kworker/0:2+events19:20:000
6091579925339,2521cyclictest695043-21kworker/2:1+events23:36:472
60915199253112,2515cyclictest631523-21kworker/0:1+events20:19:100
60915199251312,2497cyclictest623746-21kworker/0:1+events19:54:130
60915199251111,2496cyclictest707487-21kworker/0:2+events00:11:420
60915799250912,2493cyclictest615504-21kworker/2:2+events19:37:542
60915199250812,2492cyclictest625371-21kworker/0:0+events20:08:370
6091519925059,2492cyclictest620247-21kworker/0:1+events19:45:310
60915799250412,2488cyclictest618737-21kworker/2:1+events19:51:372
6091619925000,2496cyclictest633300-21kworker/3:1+events20:31:443
60916199249712,2481cyclictest710660-21kworker/3:0+events00:23:333
60915199249312,2477cyclictest633214-21kworker/0:2+events20:46:510
60915199249012,2476cyclictest625371-21kworker/0:0+events20:21:040
60915799248910,2475cyclictest631470-21kworker/2:0+events20:35:502
60916199248812,2472cyclictest691271-21kworker/3:1+events23:21:203
60915199248612,2470cyclictest709122-21kworker/0:1+events00:17:050
60915199248412,2469cyclictest657617-21kworker/0:2+events21:42:260
60915199248112,2465cyclictest625371-21kworker/0:0+events20:33:130
60915199248111,2466cyclictest698532-21kworker/0:0+events23:59:230
60915399248012,2464cyclictest706211-21kworker/1:1+events00:35:221
60915199247812,2463cyclictest689182-21kworker/0:0+events23:24:010
60915199247312,2457cyclictest613787-21kworker/0:0+events19:33:200
60915199247114,2454cyclictest672123-21kworker/0:1+events22:40:210
6091579924667,2456cyclictest643004-21kworker/2:1+events21:01:572
60915799246512,2449cyclictest604116-21kworker/2:0+events19:28:022
60915399246511,2450cyclictest636237-21kworker/1:2+events20:38:311
60915799246412,2449cyclictest643004-21kworker/2:1+events21:10:142
60915799245812,2442cyclictest699507-21kworker/2:1+events23:50:332
60915199245812,2442cyclictest680288-21kworker/0:0+events22:50:130
60915199245212,2436cyclictest683724-21kworker/0:2+events23:15:300
60915399244910,2435cyclictest658153-21kworker/1:1+events22:02:501
60915799244711,2432cyclictest670510-21kworker/2:2+events22:36:532
60915199244412,2429cyclictest659269-21kworker/0:1+events21:54:040
60915799244311,2429cyclictest662460-21kworker/2:2+events22:02:282
60915199244111,2427cyclictest633214-21kworker/0:2+events20:50:580
60915399243612,2420cyclictest639489-21kworker/1:0+events20:51:211
60915399243410,2420cyclictest628329-21kworker/1:0+events20:07:281
60915199243310,2420cyclictest691738-21kworker/0:1+events23:40:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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