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2024-10-03 - 20:05

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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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
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rackaslot5s.osadl.org (updated Thu Oct 03, 2024 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811150,0rcu_preempt104662sleep010:31:420
81950,0rcu_preempt19-21ksoftirqd/110:24:401
5902850,0sleep010050irq/346-484840008:20:100
81770,0rcu_preempt19-21ksoftirqd/111:26:341
81760,0rcu_preempt19-21ksoftirqd/111:19:091
81750,0rcu_preempt19-21ksoftirqd/111:41:381
81750,0rcu_preempt19-21ksoftirqd/111:19:571
81740,0rcu_preempt19-21ksoftirqd/112:22:281
81740,0rcu_preempt19-21ksoftirqd/111:31:281
81740,0rcu_preempt19-21ksoftirqd/110:56:261
81740,0rcu_preempt19-21ksoftirqd/110:30:451
81740,0rcu_preempt19-21ksoftirqd/110:02:341
81740,0rcu_preempt19-21ksoftirqd/109:40:591
81740,0rcu_preempt19-21ksoftirqd/109:40:591
81740,0rcu_preempt19-21ksoftirqd/109:30:421
81740,0rcu_preempt19-21ksoftirqd/109:26:401
81730,0rcu_preempt9961-1kworker/0:0H11:35:130
81730,0rcu_preempt19-21ksoftirqd/112:17:261
81730,0rcu_preempt19-21ksoftirqd/112:01:071
81730,0rcu_preempt19-21ksoftirqd/111:57:191
81730,0rcu_preempt19-21ksoftirqd/111:03:161
81730,0rcu_preempt19-21ksoftirqd/110:41:151
81720,0rcu_preempt19-21ksoftirqd/111:48:301
81720,0rcu_preempt19-21ksoftirqd/110:52:431
81720,0rcu_preempt19-21ksoftirqd/110:23:521
81720,0rcu_preempt19-21ksoftirqd/110:15:231
81720,0rcu_preempt19-21ksoftirqd/109:46:181
81720,0rcu_preempt19-21ksoftirqd/109:35:361
10050720,0irq/346-484840025769-1kworker/0:1H12:23:370
81710,0rcu_preempt19-21ksoftirqd/110:34:561
81710,0rcu_preempt19-21ksoftirqd/109:58:381
81710,0rcu_preempt19-21ksoftirqd/109:52:481
81710,0rcu_preempt0-21swapper/109:23:341
300452710,0chrt10050irq/346-484840008:13:180
81700,0rcu_preempt3-21ksoftirqd/009:30:390
81700,0rcu_preempt19-21ksoftirqd/111:05:141
81700,0rcu_preempt19-21ksoftirqd/110:45:361
10050700,0irq/346-484840013498-1kworker/0:0H09:54:040
81690,0rcu_preempt19-21ksoftirqd/112:04:501
10050690,0irq/346-484840013498-1kworker/0:0H10:09:280
81680,0rcu_preempt19-21ksoftirqd/112:30:131
10050680,0irq/346-484840021253-1kworker/0:4H10:55:370
81670,0rcu_preempt3-21ksoftirqd/011:19:400
81670,0rcu_preempt0-21swapper/111:37:481
81650,0rcu_preempt0-21swapper/112:38:421
81650,0rcu_preempt0-21swapper/109:18:451
81650,0rcu_preempt0-21swapper/109:12:581
81640,0rcu_preempt0-21swapper/111:10:241
10050640,0irq/346-484840021186-1kworker/0:1H09:36:060
10050630,0irq/346-484840012253-1kworker/0:0H12:14:150
81620,0rcu_preempt3-21ksoftirqd/011:54:380
81620,0rcu_preempt3-21ksoftirqd/009:56:320
81620,0rcu_preempt3-21ksoftirqd/009:17:420
81610,0rcu_preempt3-21ksoftirqd/012:25:520
81610,0rcu_preempt3-21ksoftirqd/010:15:130
81610,0rcu_preempt3-21ksoftirqd/009:21:010
81610,0rcu_preempt3-21ksoftirqd/007:54:370
81610,0rcu_preempt3-21ksoftirqd/007:14:380
316572610,0sleep010050irq/346-484840008:18:040
81600,0rcu_preempt3-21ksoftirqd/011:51:190
81590,0rcu_preempt3-21ksoftirqd/012:30:130
81590,0rcu_preempt3-21ksoftirqd/011:07:150
81580,0rcu_preempt3-21ksoftirqd/012:05:370
81580,0rcu_preempt3-21ksoftirqd/011:26:530
81580,0rcu_preempt3-21ksoftirqd/011:11:000
81580,0rcu_preempt3-21ksoftirqd/010:46:490
81580,0rcu_preempt3-21ksoftirqd/010:05:480
81570,0rcu_preempt3-21ksoftirqd/012:10:100
81570,0rcu_preempt19-21ksoftirqd/108:29:311
81570,0rcu_preempt19-21ksoftirqd/108:20:011
81560,0rcu_preempt54-21kswapd010:50:200
81560,0rcu_preempt19-21ksoftirqd/110:09:251
81560,0rcu_preempt19-21ksoftirqd/108:28:541
81560,0rcu_preempt19-21ksoftirqd/108:11:431
81550,0rcu_preempt3-21ksoftirqd/010:42:370
81550,0rcu_preempt3-21ksoftirqd/009:29:090
81550,0rcu_preempt19-21ksoftirqd/111:49:241
81550,0rcu_preempt19-21ksoftirqd/108:17:321
81550,0rcu_preempt19-21ksoftirqd/107:39:301
81550,0rcu_preempt19-21ksoftirqd/107:19:101
81550,0rcu_preempt1851-21kworker/0:108:24:420
10050550,0irq/346-484840022876-1kworker/0:1H11:42:180
81540,0rcu_preempt3-21ksoftirqd/010:59:190
81540,0rcu_preempt19-21ksoftirqd/112:28:311
81540,0rcu_preempt19-21ksoftirqd/108:06:251
81540,0rcu_preempt19-21ksoftirqd/108:03:081
81540,0rcu_preempt19-21ksoftirqd/108:03:081
81540,0rcu_preempt19-21ksoftirqd/107:49:351
81540,0rcu_preempt19-21ksoftirqd/107:09:341
10050540,0irq/346-48484007667-21if_can007:04:300
10050540,0irq/346-484840054-21kswapd010:21:010
10050540,0irq/346-484840054-21kswapd007:59:131
81530,0rcu_preempt19-21ksoftirqd/108:34:271
81520,0rcu_preempt19-21ksoftirqd/110:04:371
4350520,0irq/32-4330000032664-21dropbear11:44:270
81500,0rcu_preempt3-21ksoftirqd/010:34:320
81500,0rcu_preempt19-21ksoftirqd/112:11:151
81500,0rcu_preempt19-21ksoftirqd/109:04:411
10050500,0irq/346-484840054-21kswapd012:34:560
81490,0rcu_preempt19-21ksoftirqd/108:44:351
10050490,0irq/346-48484000-21swapper/012:02:330
81480,0rcu_preempt3-21ksoftirqd/009:13:510
81480,0rcu_preempt3-21ksoftirqd/008:04:350
81480,0rcu_preempt19383-21kworker/u4:107:44:370
81480,0rcu_preempt19-21ksoftirqd/108:39:381
4350480,0irq/32-4330000018639-21dropbear09:59:280
264932480,0sleep010050irq/346-484840008:00:110
264932480,0sleep010050irq/346-484840008:00:110
10050480,0irq/346-484840054-21kswapd009:41:310
10050480,0irq/346-484840054-21kswapd009:41:310
81470,0rcu_preempt7728-21apt-get08:44:230
81470,0rcu_preempt3-21ksoftirqd/010:29:130
81470,0rcu_preempt3-21ksoftirqd/009:44:390
81470,0rcu_preempt19-21ksoftirqd/107:44:271
10050470,0irq/346-48484000-21swapper/011:31:130
81460,0rcu_preempt3-21ksoftirqd/008:29:270
81460,0rcu_preempt19-21ksoftirqd/108:54:351
81460,0rcu_preempt19-21ksoftirqd/107:21:201
10050460,0irq/346-48484000-21swapper/011:17:150
81450,0rcu_preempt9547-21df08:49:271
81450,0rcu_preempt54-21kswapd007:25:411
81450,0rcu_preempt3904-21kworker/0:208:39:390
81450,0rcu_preempt3-21ksoftirqd/009:05:380
81440,0rcu_preempt3-21ksoftirqd/008:36:200
81440,0rcu_preempt19-21ksoftirqd/107:29:241
10050440,0irq/346-484840013628-21sshd07:22:370
10050440,0irq/346-48484000-21swapper/007:29:380
81430,0rcu_preempt886899cyclictest07:34:450
81430,0rcu_preempt3-21ksoftirqd/007:13:290
81430,0rcu_preempt19-21ksoftirqd/107:37:221
10050420,0irq/346-48484003992-1kworker/0:3H08:49:300
10050420,0irq/346-484840015257-21sshd07:27:360
81410,0rcu_preempt752-21rngd08:59:371
10050410,0irq/346-484840020322-21munin-run07:44:140
10050410,0irq/346-484840012482-1kworker/0:0H08:59:290
81400,0rcu_preempt8649-21kworker/0:207:51:130
1699400,0migration/17566-21dropbear07:04:271
10050400,0irq/346-484840054-21kswapd008:55:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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