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2024-07-16 - 15:32

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 all highest latencies:
System rackaslot5s.osadl.org (updated Tue Jul 16, 2024 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811630,0rcu_preempt9012-1kworker/0:0H07:34:280
811010,0rcu_preempt19-21ksoftirqd/108:49:501
811000,0rcu_preempt19-21ksoftirqd/111:55:111
81970,0rcu_preempt54-21kswapd010:20:521
81970,0rcu_preempt19-21ksoftirqd/112:14:251
81970,0rcu_preempt19-21ksoftirqd/109:14:441
81960,0rcu_preempt19-21ksoftirqd/110:29:521
81940,0rcu_preempt19-21ksoftirqd/109:34:311
81940,0rcu_preempt0-21swapper/111:33:421
81940,0rcu_preempt0-21swapper/109:30:491
81930,0rcu_preempt0-21swapper/112:01:551
81880,0rcu_preempt19-21ksoftirqd/109:52:511
81880,0rcu_preempt19-21ksoftirqd/107:29:211
81880,0rcu_preempt19-21ksoftirqd/107:29:211
81870,0rcu_preempt54-21kswapd011:09:441
81870,0rcu_preempt54-21kswapd011:09:441
81870,0rcu_preempt19-21ksoftirqd/111:50:541
81870,0rcu_preempt19-21ksoftirqd/111:03:481
81840,0rcu_preempt19-21ksoftirqd/111:26:481
81840,0rcu_preempt19-21ksoftirqd/109:19:331
81830,0rcu_preempt19-21ksoftirqd/110:44:231
81830,0rcu_preempt19-21ksoftirqd/110:13:521
81830,0rcu_preempt19-21ksoftirqd/109:54:431
81830,0rcu_preempt0-21swapper/111:42:491
81830,0rcu_preempt0-21swapper/111:20:401
81820,0rcu_preempt19-21ksoftirqd/112:12:181
81820,0rcu_preempt19-21ksoftirqd/109:44:081
81820,0rcu_preempt19-21ksoftirqd/109:00:021
81810,0rcu_preempt54-21kswapd012:35:501
81800,0rcu_preempt6569-21ping07:20:141
81800,0rcu_preempt6569-21ping07:20:141
81800,0rcu_preempt19-21ksoftirqd/112:05:101
81800,0rcu_preempt19-21ksoftirqd/111:08:531
81800,0rcu_preempt19-21ksoftirqd/110:54:191
81800,0rcu_preempt19-21ksoftirqd/109:46:441
81790,0rcu_preempt54-21kswapd011:47:161
81790,0rcu_preempt19-21ksoftirqd/109:27:241
81770,0rcu_preempt19-21ksoftirqd/110:14:451
81770,0rcu_preempt19-21ksoftirqd/109:09:211
81770,0rcu_preempt19-21ksoftirqd/107:25:001
81770,0rcu_preempt19-21ksoftirqd/107:25:001
10050770,0irq/346-484840054-21kswapd010:03:100
10050760,0irq/346-48484000-21swapper/011:40:270
81750,0rcu_preempt19-21ksoftirqd/108:34:541
81740,0rcu_preempt19-21ksoftirqd/108:30:011
81730,0rcu_preempt19-21ksoftirqd/110:51:241
81730,0rcu_preempt0-21swapper/110:03:571
81720,0rcu_preempt19-21ksoftirqd/110:04:551
81710,0rcu_preempt19-21ksoftirqd/110:35:151
81700,0rcu_preempt19-21ksoftirqd/108:18:551
81690,0rcu_preempt19-21ksoftirqd/107:14:211
10050690,0irq/346-4848400171rcuc/110:42:461
81680,0rcu_preempt784-21rngd11:18:381
81680,0rcu_preempt19-21ksoftirqd/112:27:461
81680,0rcu_preempt19-21ksoftirqd/108:04:331
81680,0rcu_preempt19-21ksoftirqd/107:40:101
10050680,0irq/346-484840024472-21latency_hist10:19:100
81670,0rcu_preempt19-21ksoftirqd/111:34:281
81660,0rcu_preempt3-21ksoftirqd/011:00:080
81660,0rcu_preempt3-21ksoftirqd/009:09:220
81660,0rcu_preempt3-21ksoftirqd/007:39:350
81650,0rcu_preempt784-21rngd08:11:311
81630,0rcu_preempt54-21kswapd009:05:091
81630,0rcu_preempt3-21ksoftirqd/008:59:510
81630,0rcu_preempt0-21swapper/110:28:331
215552630,0sleep09950irq/345-484840012:27:590
81620,0rcu_preempt54-21kswapd012:16:060
81620,0rcu_preempt3-21ksoftirqd/011:47:450
81620,0rcu_preempt2305-1kworker/0:2H10:39:280
81620,0rcu_preempt19-21ksoftirqd/112:33:481
81620,0rcu_preempt19-21ksoftirqd/108:21:091
81610,0rcu_preempt54-21kswapd012:23:381
81610,0rcu_preempt54-21kswapd011:51:470
81610,0rcu_preempt54-21kswapd009:29:590
81610,0rcu_preempt3-21ksoftirqd/009:14:190
246412610,0sleep010050irq/346-484840008:19:520
81600,0rcu_preempt54-21kswapd010:09:270
81600,0rcu_preempt3-21ksoftirqd/012:19:590
81600,0rcu_preempt3-21ksoftirqd/010:04:400
81590,0rcu_preempt3-21ksoftirqd/011:59:100
81590,0rcu_preempt19-21ksoftirqd/108:28:401
81590,0rcu_preempt19-21ksoftirqd/108:04:031
10050590,0irq/346-48484001283-21lldpd11:14:460
81580,0rcu_preempt54-21kswapd012:34:360
81580,0rcu_preempt3-21ksoftirqd/011:39:090
10050580,0irq/346-484840054-21kswapd012:30:150
81570,0rcu_preempt3-21ksoftirqd/010:28:560
81560,0rcu_preempt3-21ksoftirqd/009:39:460
81550,0rcu_preempt19-21ksoftirqd/107:49:431
81550,0rcu_preempt19-21ksoftirqd/107:49:431
81540,0rcu_preempt13359-1kworker/0:3H09:20:160
10050540,0irq/346-48484003301-21cyclictest08:49:091
10050540,0irq/346-484840020774-1kworker/0:0H09:34:480
10050530,0irq/346-484840054-21kswapd008:54:451
10050530,0irq/346-484840026087-21ssh10:20:160
81520,0rcu_preempt6569-21ping07:46:561
81520,0rcu_preempt3-21ksoftirqd/008:00:130
81510,0rcu_preempt3-21ksoftirqd/009:57:530
81510,0rcu_preempt3-21ksoftirqd/009:49:250
81510,0rcu_preempt3-21ksoftirqd/008:39:450
81500,0rcu_preempt19-21ksoftirqd/107:12:561
61742500,0chrt9950irq/345-484840012:07:280
151782500,0sleep09950irq/345-484840010:50:210
10050500,0irq/346-484840054-21kswapd010:44:360
81490,0rcu_preempt6569-21ping07:34:301
81490,0rcu_preempt19-21ksoftirqd/108:39:251
81490,0rcu_preempt19-21ksoftirqd/107:54:281
10050490,0irq/346-484840054-21kswapd011:19:290
10050490,0irq/346-484840032456-21if_err_eth111:59:320
81480,0rcu_preempt3-21ksoftirqd/012:09:520
81480,0rcu_preempt3-21ksoftirqd/008:09:450
81480,0rcu_preempt25987-21kworker/0:007:04:260
10050480,0irq/346-484840054-21kswapd010:29:230
10050480,0irq/346-484840030316-1kworker/0:3H09:45:040
81470,0rcu_preempt3-21ksoftirqd/008:54:330
81470,0rcu_preempt3-21ksoftirqd/008:30:020
81470,0rcu_preempt3-21ksoftirqd/008:24:560
10050470,0irq/346-484840054-21kswapd010:54:520
9950460,0irq/345-484840019748-21munin-node0
10050460,0irq/346-484840054-21kswapd011:04:290
81450,0rcu_preempt3-21ksoftirqd/008:14:430
13250450,0irq/301-48020003-21ksoftirqd/007:24:300
13250450,0irq/301-48020003-21ksoftirqd/007:24:300
10050450,0irq/346-48484006410-21sendmail-msp10:39:100
10050450,0irq/346-48484000-21swapper/011:11:530
10050450,0irq/346-48484000-21swapper/011:11:530
10050440,0irq/346-48484000-21swapper/011:29:590
81430,0rcu_preempt3-21ksoftirqd/008:35:100
10050430,0irq/346-48484006590-21sendmail-msp07:19:220
10050430,0irq/346-48484006590-21sendmail-msp07:19:220
81420,0rcu_preempt0-21swapper/008:53:310
3302994212,0cyclictest19111-21ping08:04:530
10050420,0irq/346-484840016898-1kworker/0:3H07:55:010
10050410,0irq/346-48484008693-1kworker/0:1H11:27:380
10050410,0irq/346-48484003767-21if_can007:09:400
81400,0rcu_preempt3-21ksoftirqd/009:06:340
81400,0rcu_preempt3-21ksoftirqd/007:45:000
81400,0rcu_preempt3-21ksoftirqd/007:29:350
81400,0rcu_preempt3-21ksoftirqd/007:29:350
81400,0rcu_preempt19-21ksoftirqd/107:05:481
3302994013,0cyclictest0-21swapper/007:50:160
3302994013,0cyclictest0-21swapper/007:50:160
10050400,0irq/346-48484005076-1kworker/0:1H07:14:300
10050380,0irq/346-484840031786-1kworker/0:5H08:44:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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