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OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, 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 
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Intel(R) Celeron(R) CPU N2930 @ 1.83GHz, Linux 3.12.42-rt58 (Profile)

Latency plot of shadow in rack #8, slot #4
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 alll highest latencies:
System rack8slot4s.osadl.org (updated Mon Apr 15, 2019 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
345580446396,34exc_00000111_CO0-21swapper/007:09:160
57022442390,37sleep10-21swapper/107:10:381
237312400,1sleep023732-21sh11:36:510
273182360,1sleep027328-21ssh11:00:100
576299351,7cyclictest18119-21ssh10:47:380
576299331,30cyclictest0-21swapper/010:27:030
576299321,3cyclictest0-21swapper/008:22:190
576299321,29cyclictest0-21swapper/011:49:550
576299321,28cyclictest0-21swapper/012:26:090
576299321,28cyclictest0-21swapper/012:15:460
576299321,28cyclictest0-21swapper/011:04:530
576299311,3cyclictest0-21swapper/011:54:530
576299311,3cyclictest0-21swapper/010:14:040
576299311,3cyclictest0-21swapper/008:51:480
576299311,3cyclictest0-21swapper/008:11:460
576299311,3cyclictest0-21swapper/007:57:220
576299311,28cyclictest0-21swapper/012:01:490
576299311,28cyclictest0-21swapper/009:59:240
576299311,28cyclictest0-21swapper/009:37:520
576299311,27cyclictest0-21swapper/011:32:000
576299311,27cyclictest0-21swapper/009:52:070
576299311,27cyclictest0-21swapper/008:47:520
576299311,27cyclictest0-21swapper/007:35:150
576299311,22cyclictest0-21swapper/011:21:360
576299311,22cyclictest0-21swapper/011:14:210
576299301,3cyclictest1244-21ssh09:44:030
576299301,3cyclictest0-21swapper/010:38:250
576299301,3cyclictest0-21swapper/008:58:550
576299301,3cyclictest0-21swapper/008:44:220
576299301,3cyclictest0-21swapper/008:37:020
576299301,3cyclictest0-21swapper/008:18:510
576299301,3cyclictest0-21swapper/008:08:080
576299301,3cyclictest0-21swapper/007:53:350
576299301,3cyclictest0-21swapper/007:49:330
576299301,27cyclictest0-21swapper/012:19:580
576299301,27cyclictest0-21swapper/012:07:060
576299301,27cyclictest0-21swapper/011:59:270
576299301,27cyclictest0-21swapper/011:09:370
576299301,27cyclictest0-21swapper/010:52:180
576299301,27cyclictest0-21swapper/010:42:440
576299301,27cyclictest0-21swapper/010:08:040
576299301,27cyclictest0-21swapper/009:29:000
576299301,26cyclictest0-21swapper/011:27:040
576299301,26cyclictest0-21swapper/009:17:290
576299301,26cyclictest0-21swapper/008:04:460
576299301,26cyclictest0-21swapper/007:42:310
576299301,24cyclictest0-21swapper/012:27:230
576299301,23cyclictest0-21swapper/009:48:430
576299301,21cyclictest0-21swapper/010:01:560
576299300,3cyclictest6122-21ssh10:31:490
576299300,3cyclictest0-21swapper/007:16:340
576299300,28cyclictest0-21swapper/012:39:050
576299300,27cyclictest0-21swapper/009:10:190
576299291,4cyclictest0-21swapper/009:23:560
576299291,3cyclictest0-21swapper/011:16:370
576299291,3cyclictest0-21swapper/008:26:270
576299291,3cyclictest0-21swapper/007:38:350
576299291,3cyclictest0-21swapper/007:11:150
576299291,26cyclictest0-21swapper/011:44:350
576299291,25cyclictest0-21swapper/010:22:310
576299291,25cyclictest0-21swapper/010:19:290
576299291,25cyclictest0-21swapper/009:31:400
576299291,25cyclictest0-21swapper/009:15:310
576299291,25cyclictest0-21swapper/008:34:490
576299290,3cyclictest0-21swapper/009:02:550
576299281,25cyclictest0-21swapper/007:21:480
576299280,25cyclictest0-21swapper/012:33:150
576299271,23cyclictest0-21swapper/007:27:180
576399224,11cyclictest0-21swapper/109:17:201
576399218,4cyclictest19028-21ssh10:06:331
576399213,10cyclictest0-21swapper/109:42:061
576399211,13cyclictest5599-21kworker/1:011:05:421
576399211,11cyclictest0-21swapper/112:18:431
576399211,11cyclictest0-21swapper/111:37:351
576399211,11cyclictest0-21swapper/111:19:521
576399211,11cyclictest0-21swapper/111:10:521
576399211,11cyclictest0-21swapper/110:59:101
576399211,11cyclictest0-21swapper/110:26:251
576399211,11cyclictest0-21swapper/110:11:401
576399211,11cyclictest0-21swapper/109:46:241
576399211,11cyclictest0-21swapper/109:22:381
576399210,18cyclictest30544-21munin-node1
576399206,12cyclictest31096-21runrttasks12:29:211
576399203,11cyclictest167850irq/107-eth0-tx10:01:501
576399201,17cyclictest0-21swapper/107:22:251
576399201,13cyclictest0-21swapper/111:28:471
576399201,12cyclictest5599-21kworker/1:011:48:341
576399201,12cyclictest0-21swapper/112:13:351
576399201,12cyclictest0-21swapper/112:07:131
576399201,12cyclictest0-21swapper/107:16:091
576399201,11cyclictest0-21swapper/112:33:421
576399201,11cyclictest0-21swapper/111:22:081
576399201,11cyclictest0-21swapper/110:17:491
576399201,10cyclictest0-21swapper/112:36:261
576399201,10cyclictest0-21swapper/112:03:451
576399201,10cyclictest0-21swapper/111:56:271
576399201,10cyclictest0-21swapper/111:11:431
576399201,10cyclictest0-21swapper/110:34:011
576399201,10cyclictest0-21swapper/109:52:451
576399201,10cyclictest0-21swapper/109:40:051
576399201,10cyclictest0-21swapper/109:32:421
576399201,10cyclictest0-21swapper/109:12:271
576399200,11cyclictest0-21swapper/109:58:351
576399198,6cyclictest167650irq/105-eth0-rx08:16:191
576399191,11cyclictest0-21swapper/107:20:561
576399191,10cyclictest0-21swapper/112:23:051
576399191,10cyclictest0-21swapper/111:42:221
576399191,10cyclictest0-21swapper/110:51:211
576399191,10cyclictest0-21swapper/110:50:141
576399191,10cyclictest0-21swapper/110:43:051
576399190,12cyclictest3568-21ssh11:53:051
576399190,11cyclictest0-21swapper/111:31:531
576399187,3cyclictest167850irq/107-eth0-tx07:35:471
576399181,16cyclictest0-21swapper/107:55:351
576399181,15cyclictest0-21swapper/108:48:311
576399181,15cyclictest0-21swapper/108:38:111
576399181,15cyclictest0-21swapper/108:09:351
576399181,14cyclictest0-21swapper/108:04:591
576399181,11cyclictest0-21swapper/109:27:401
576399180,11cyclictest32562-21ssh10:24:491
576399171,14cyclictest0-21swapper/109:08:281
576399171,14cyclictest0-21swapper/108:11:461
576399171,14cyclictest0-21swapper/107:56:341
576399171,14cyclictest0-21swapper/107:47:231
576399171,14cyclictest0-21swapper/107:43:591
576399171,14cyclictest0-21swapper/107:27:221
576399171,13cyclictest3043-21runrttasks09:01:171
576399171,13cyclictest28001-21munin-node1
576399171,10cyclictest0-21swapper/108:29:291
576399170,10cyclictest0-21swapper/110:36:221
576399161,13cyclictest0-21swapper/108:57:521
576399161,13cyclictest0-21swapper/108:51:161
576399161,13cyclictest0-21swapper/108:41:211
576399161,13cyclictest0-21swapper/107:36:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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