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2024-03-02 - 01:27

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 376 highest latencies:
System rackaslot5s.osadl.org (updated Fri Mar 01, 2024 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811060,0rcu_preempt3-21ksoftirqd/009:34:160
811040,0rcu_preempt3-21ksoftirqd/010:16:140
811000,0rcu_preempt3-21ksoftirqd/011:49:520
81990,0rcu_preempt811-21rngd12:09:120
81990,0rcu_preempt3-21ksoftirqd/011:16:040
81980,0rcu_preempt3-21ksoftirqd/009:11:010
81970,0rcu_preempt3-21ksoftirqd/010:43:480
81930,0rcu_preempt3-21ksoftirqd/009:23:580
81860,0rcu_preempt3-21ksoftirqd/008:30:510
81850,0rcu_preempt3-21ksoftirqd/007:29:080
81830,0rcu_preempt3-21ksoftirqd/011:40:570
81790,0rcu_preempt26889-21kworker/0:207:21:230
81790,0rcu_preempt25301-21apt-get12:25:480
81760,0rcu_preempt14561-21apt-get09:00:490
81750,0rcu_preempt22320-21apt-get07:45:460
81710,0rcu_preempt3-21ksoftirqd/011:28:240
81700,0rcu_preempt3-21ksoftirqd/012:16:110
81690,0rcu_preempt3-21ksoftirqd/007:16:290
81680,0rcu_preempt3-21ksoftirqd/007:40:520
81670,0rcu_preempt3654-21kworker/0:110:57:350
81650,0rcu_preempt54-21kswapd009:46:040
81640,0rcu_preempt3654-21kworker/0:111:00:590
81640,0rcu_preempt3-21ksoftirqd/008:05:550
81640,0rcu_preempt3-21ksoftirqd/007:38:450
81640,0rcu_preempt16877-21kworker/0:211:50:410
81640,0rcu_preempt0-21swapper/011:20:450
81630,0rcu_preempt26205-21kworker/0:110:12:330
81630,0rcu_preempt24427-21ssh11:40:010
81630,0rcu_preempt1082-21kworker/0:008:50:540
10050620,0irq/346-484840054-21kswapd012:04:291
10050620,0irq/346-4848400181ktimersoftd/110:58:301
81610,0rcu_preempt3-21ksoftirqd/011:11:100
81610,0rcu_preempt3-21ksoftirqd/008:15:570
81610,0rcu_preempt3-21ksoftirqd/008:15:300
10050610,0irq/346-48484009934-1kworker/1:1H09:44:321
10050610,0irq/346-484840018073-1kworker/1:1H09:09:421
81600,0rcu_preempt16706-21kworker/0:109:59:590
81600,0rcu_preempt13927-21kworker/0:212:13:590
81600,0rcu_preempt0-21swapper/011:57:380
81600,0rcu_preempt0-21swapper/011:35:030
81600,0rcu_preempt0-21swapper/010:38:430
10050600,0irq/346-484840054-21kswapd011:28:591
81590,0rcu_preempt3-21ksoftirqd/011:07:500
81590,0rcu_preempt3-21ksoftirqd/010:20:480
81590,0rcu_preempt3-21ksoftirqd/010:05:290
81590,0rcu_preempt0-21swapper/012:24:030
81590,0rcu_preempt0-21swapper/009:54:370
10050590,0irq/346-484840054-21kswapd011:13:541
10050590,0irq/346-484840026713-1kworker/1:0H11:45:461
10050590,0irq/346-484840025059-1kworker/1:3H09:19:481
10050590,0irq/346-484840021624-1kworker/1:2H09:13:131
81580,0rcu_preempt3-21ksoftirqd/009:36:050
81580,0rcu_preempt3-21ksoftirqd/007:30:330
81580,0rcu_preempt3-21ksoftirqd/007:11:110
81580,0rcu_preempt0-21swapper/010:31:020
81580,0rcu_preempt0-21swapper/010:04:130
81580,0rcu_preempt0-21swapper/010:04:130
10050580,0irq/346-48484008455-1kworker/1:0H11:31:251
10050580,0irq/346-484840030851-1kworker/1:1H12:35:131
81570,0rcu_preempt3654-21kworker/0:110:52:250
81570,0rcu_preempt0-21swapper/012:32:590
10050570,0irq/346-48484005413-1kworker/1:2H12:00:131
81560,0rcu_preempt3-21ksoftirqd/009:15:450
81560,0rcu_preempt3064-21apt-get08:25:510
81560,0rcu_preempt0-21swapper/010:46:090
81560,0rcu_preempt0-21swapper/009:43:570
10050560,0irq/346-48484008455-1kworker/1:0H11:22:211
10050560,0irq/346-484840027123-1kworker/1:3H12:27:451
10050560,0irq/346-484840023251-1kworker/1:2H10:04:331
10050560,0irq/346-484840023251-1kworker/1:2H10:04:331
81550,0rcu_preempt3-21ksoftirqd/010:25:550
81550,0rcu_preempt3-21ksoftirqd/009:07:060
81550,0rcu_preempt3-21ksoftirqd/008:35:480
81550,0rcu_preempt0-21swapper/008:23:320
81550,0rcu_preempt0-21swapper/007:09:520
10050550,0irq/346-484840030595-1kworker/1:1H11:54:521
10050550,0irq/346-484840018984-1kworker/1:1H11:37:121
10050550,0irq/346-4848400171rcuc/111:00:421
81540,0rcu_preempt3-21ksoftirqd/008:01:050
81540,0rcu_preempt0-21swapper/012:05:120
81530,0rcu_preempt3-21ksoftirqd/009:26:100
81530,0rcu_preempt19-21ksoftirqd/112:06:011
10050530,0irq/346-484840054-21kswapd009:28:041
81520,0rcu_preempt3-21ksoftirqd/008:56:040
81520,0rcu_preempt19-21ksoftirqd/109:30:491
10050520,0irq/346-48484007354-1kworker/1:0H10:37:461
10050520,0irq/346-48484004751-21ssh10:24:301
10050520,0irq/346-484840030288-1kworker/1:2H11:07:061
10050520,0irq/346-484840026713-1kworker/1:0H11:42:561
10050520,0irq/346-484840023251-1kworker/1:2H10:05:361
81510,0rcu_preempt10222-21memory08:46:080
10050510,0irq/346-4848400181ktimersoftd/110:49:551
81500,0rcu_preempt3-21ksoftirqd/007:55:540
81500,0rcu_preempt3-21ksoftirqd/007:50:550
10050500,0irq/346-4848400738-1kworker/1:1H10:32:211
10050500,0irq/346-48484007354-1kworker/1:0H10:29:111
10050500,0irq/346-48484005001-1kworker/1:2H11:16:371
10050500,0irq/346-484840029935-1kworker/1:2H10:12:591
81490,0rcu_preempt8561-21memory08:40:570
10050490,0irq/346-484840016881-1kworker/1:3H10:43:291
10050490,0irq/346-484840016572-1kworker/1:0H12:22:141
10050490,0irq/346-484840016076-21ssh12:11:171
10050490,0irq/346-484840014404-21ssh09:50:121
81480,0rcu_preempt3-21ksoftirqd/007:05:290
10050480,0irq/346-4848400181ktimersoftd/112:15:551
10050480,0irq/346-484840016708-1kworker/1:1H09:55:281
10050460,0irq/346-484840029935-1kworker/1:2H10:19:521
10050460,0irq/346-484840020003-1kworker/1:0H10:00:261
10050460,0irq/346-484840012329-21ping07:31:301
9049994511,0cyclictest0-21swapper/108:41:011
81420,0rcu_preempt19-21ksoftirqd/107:01:011
10050420,0irq/346-484840025059-1kworker/1:3H09:23:021
81410,0rcu_preempt19-21ksoftirqd/107:25:491
81400,0rcu_preempt19-21ksoftirqd/108:00:531
81390,0rcu_preempt19-21ksoftirqd/110:55:291
81390,0rcu_preempt19-21ksoftirqd/109:39:281
81390,0rcu_preempt19-21ksoftirqd/107:58:271
81380,0rcu_preempt19-21ksoftirqd/107:35:581
10050380,0irq/346-48484000-21swapper/108:55:531
904999373,0cyclictest0-21swapper/108:16:041
81370,0rcu_preempt19-21ksoftirqd/108:26:121
81370,0rcu_preempt19-21ksoftirqd/107:24:251
81370,0rcu_preempt19-21ksoftirqd/107:16:081
81370,0rcu_preempt19-21ksoftirqd/107:11:101
9950360,0irq/345-4848400904999cyclictest08:55:291
81360,0rcu_preempt19-21ksoftirqd/109:00:511
81360,0rcu_preempt19-21ksoftirqd/107:40:511
81340,0rcu_preempt19-21ksoftirqd/108:21:101
81340,0rcu_preempt19-21ksoftirqd/107:06:121
81340,0rcu_preempt18583-1kworker/1:1H07:46:171
10050340,0irq/346-48484000-21swapper/108:45:311
81330,0rcu_preempt19-21ksoftirqd/108:35:291
10050330,0irq/346-48484000-21swapper/108:05:571
904999323,0cyclictest0-21swapper/107:51:151
10050290,0irq/346-48484000-21swapper/108:14:241
10050270,0irq/346-48484000-21swapper/108:35:491
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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