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2024-04-24 - 23:26

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #a, slot #5

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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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackaslot5s.osadl.org (updated Wed Apr 24, 2024 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811200,0rcu_preempt3-21ksoftirqd/020:39:270
811010,0rcu_preempt31481-21cyclictest21:37:281
10050830,0irq/346-484840054-21kswapd023:09:380
81730,0rcu_preempt3-21ksoftirqd/022:35:010
10050730,0irq/346-484840054-21kswapd021:34:130
10050730,0irq/346-484840014171-1kworker/0:0H23:48:280
10050720,0irq/346-484840054-21kswapd023:54:360
10050720,0irq/346-484840029137-1kworker/0:2H23:27:290
81700,0rcu_preempt19-21ksoftirqd/100:18:021
10050700,0irq/346-484840023025-1kworker/0:0H00:05:170
10050700,0irq/346-484840011553-1kworker/0:0H23:21:580
10050690,0irq/346-48484004401-1kworker/0:4H22:25:360
10050690,0irq/346-484840030605-1kworker/0:0H21:20:360
10050690,0irq/346-484840029273-1kworker/0:1H21:37:070
81680,0rcu_preempt19-21ksoftirqd/120:28:121
10050680,0irq/346-484840029273-1kworker/0:1H21:43:210
81670,0rcu_preempt22884-21dropbear23:19:381
81670,0rcu_preempt19-21ksoftirqd/119:39:281
81660,0rcu_preempt54-21kswapd022:21:090
81660,0rcu_preempt54-21kswapd021:40:411
81660,0rcu_preempt0-21swapper/123:00:381
81640,0rcu_preempt2519-21kworker/1:021:48:161
81640,0rcu_preempt19-21ksoftirqd/120:04:441
81620,0rcu_preempt19-21ksoftirqd/123:04:551
81610,0rcu_preempt19-21ksoftirqd/123:14:371
81610,0rcu_preempt19-21ksoftirqd/120:15:111
81610,0rcu_preempt19-21ksoftirqd/100:09:351
10050610,0irq/346-484840027939-1kworker/0:0H22:15:320
10050610,0irq/346-484840018626-1kworker/0:1H23:51:230
10050610,0irq/346-484840018626-1kworker/0:1H00:00:320
81600,0rcu_preempt812-21rngd22:02:151
81600,0rcu_preempt54-21kswapd021:23:341
81600,0rcu_preempt31628-21apt-get19:09:361
81600,0rcu_preempt2519-21kworker/1:022:49:451
81600,0rcu_preempt19-21ksoftirqd/120:09:401
10050600,0irq/346-484840020409-1kworker/0:1H21:26:370
10050600,0irq/346-484840020409-1kworker/0:1H21:26:370
81590,0rcu_preempt54-21kswapd021:26:391
81590,0rcu_preempt54-21kswapd021:26:391
81590,0rcu_preempt3-21ksoftirqd/022:49:340
81590,0rcu_preempt3-21ksoftirqd/022:42:520
81590,0rcu_preempt19-21ksoftirqd/123:49:541
81590,0rcu_preempt19-21ksoftirqd/123:29:531
81590,0rcu_preempt19-21ksoftirqd/122:04:371
81590,0rcu_preempt19-21ksoftirqd/121:54:551
81590,0rcu_preempt19-21ksoftirqd/121:52:301
81590,0rcu_preempt19-21ksoftirqd/121:31:051
81590,0rcu_preempt19-21ksoftirqd/120:59:511
81590,0rcu_preempt19-21ksoftirqd/100:29:541
81590,0rcu_preempt19-21ksoftirqd/100:19:541
10050590,0irq/346-484840054-21kswapd023:42:170
10050590,0irq/346-484840054-21kswapd023:42:170
81580,0rcu_preempt54-21kswapd021:18:571
81580,0rcu_preempt3-21ksoftirqd/022:44:560
81580,0rcu_preempt3-21ksoftirqd/000:19:280
81580,0rcu_preempt19-21ksoftirqd/120:22:441
10050580,0irq/346-484840081rcu_preempt00:24:550
10050580,0irq/346-484840020326-1kworker/0:2H23:19:160
81570,0rcu_preempt3-21ksoftirqd/023:34:410
81570,0rcu_preempt19-21ksoftirqd/122:29:471
81570,0rcu_preempt19-21ksoftirqd/122:14:491
81570,0rcu_preempt19-21ksoftirqd/120:54:501
81570,0rcu_preempt19-21ksoftirqd/120:30:241
81560,0rcu_preempt3-21ksoftirqd/000:39:260
81560,0rcu_preempt3-21ksoftirqd/000:18:160
81560,0rcu_preempt19-21ksoftirqd/119:59:001
81560,0rcu_preempt19-21ksoftirqd/119:14:561
81550,0rcu_preempt3370-21apt-get23:34:391
81550,0rcu_preempt3-21ksoftirqd/022:55:440
81550,0rcu_preempt2519-21kworker/1:023:10:141
81550,0rcu_preempt19-21ksoftirqd/120:03:131
81540,0rcu_preempt19-21ksoftirqd/122:44:551
81540,0rcu_preempt19-21ksoftirqd/121:09:311
81540,0rcu_preempt19-21ksoftirqd/119:49:511
3148299547,0cyclictest7611-1kworker/0:1H19:39:270
10050540,0irq/346-484840023503-1kworker/0:2H22:08:400
81530,0rcu_preempt3-21ksoftirqd/020:59:300
81530,0rcu_preempt19-21ksoftirqd/123:39:471
81530,0rcu_preempt19-21ksoftirqd/123:39:471
81530,0rcu_preempt19-21ksoftirqd/122:39:521
81530,0rcu_preempt19-21ksoftirqd/122:24:541
81530,0rcu_preempt19-21ksoftirqd/121:04:381
81530,0rcu_preempt19-21ksoftirqd/120:44:471
81530,0rcu_preempt19-21ksoftirqd/120:39:461
81530,0rcu_preempt19-21ksoftirqd/120:34:371
81520,0rcu_preempt3-21ksoftirqd/020:44:440
81520,0rcu_preempt19-21ksoftirqd/123:59:361
81520,0rcu_preempt19-21ksoftirqd/120:49:491
81520,0rcu_preempt19-21ksoftirqd/100:35:001
81520,0rcu_preempt19-21ksoftirqd/100:08:591
81520,0rcu_preempt1420-21runrttasks22:21:011
81510,0rcu_preempt3-21ksoftirqd/020:30:350
81510,0rcu_preempt2375-21kworker/0:123:04:590
81510,0rcu_preempt19-21ksoftirqd/122:54:431
81510,0rcu_preempt19-21ksoftirqd/122:34:461
81510,0rcu_preempt19-21ksoftirqd/122:09:511
81510,0rcu_preempt19-21ksoftirqd/100:24:481
81500,0rcu_preempt3-21ksoftirqd/021:09:400
81500,0rcu_preempt3-21ksoftirqd/020:04:470
81500,0rcu_preempt19-21ksoftirqd/119:04:421
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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