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2025-05-09 - 12:32

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 the 100 highest latencies:
System rackaslot5s.osadl.org (updated Fri May 09, 2025 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811130,0rcu_preempt3-21ksoftirqd/019:05:180
81920,0rcu_preempt19-21ksoftirqd/100:11:451
81900,0rcu_preempt19-21ksoftirqd/121:45:261
81900,0rcu_preempt19-21ksoftirqd/121:31:261
81890,0rcu_preempt19-21ksoftirqd/122:45:171
81890,0rcu_preempt19-21ksoftirqd/122:33:391
81890,0rcu_preempt19-21ksoftirqd/120:22:281
81880,0rcu_preempt19-21ksoftirqd/100:25:591
81860,0rcu_preempt19-21ksoftirqd/123:06:201
81860,0rcu_preempt19-21ksoftirqd/122:10:071
81860,0rcu_preempt19-21ksoftirqd/121:59:571
81850,0rcu_preempt19-21ksoftirqd/100:06:111
81850,0rcu_preempt14568-21kworker/1:120:16:291
81840,0rcu_preempt19-21ksoftirqd/121:13:511
81840,0rcu_preempt19-21ksoftirqd/120:25:421
81840,0rcu_preempt19-21ksoftirqd/119:44:591
81830,0rcu_preempt19-21ksoftirqd/123:13:451
81820,0rcu_preempt19-21ksoftirqd/120:07:481
81820,0rcu_preempt19-21ksoftirqd/100:19:381
81810,0rcu_preempt368-21diskstats23:38:001
81810,0rcu_preempt19-21ksoftirqd/119:40:321
81800,0rcu_preempt19-21ksoftirqd/123:43:011
81800,0rcu_preempt19-21ksoftirqd/121:39:161
81800,0rcu_preempt19-21ksoftirqd/120:28:071
81800,0rcu_preempt19-21ksoftirqd/119:31:271
81800,0rcu_preempt19-21ksoftirqd/119:31:271
81800,0rcu_preempt19-21ksoftirqd/100:35:271
81790,0rcu_preempt19-21ksoftirqd/123:18:271
81790,0rcu_preempt19-21ksoftirqd/122:58:371
81790,0rcu_preempt19-21ksoftirqd/121:37:081
81790,0rcu_preempt19-21ksoftirqd/120:03:011
81790,0rcu_preempt19-21ksoftirqd/119:58:131
81790,0rcu_preempt19-21ksoftirqd/119:33:171
81790,0rcu_preempt19-21ksoftirqd/119:21:011
81790,0rcu_preempt0-21swapper/123:07:561
81780,0rcu_preempt8980-21diskmemload22:06:131
81780,0rcu_preempt8980-21diskmemload22:06:131
81780,0rcu_preempt19-21ksoftirqd/122:53:371
81780,0rcu_preempt19-21ksoftirqd/122:26:431
81780,0rcu_preempt19-21ksoftirqd/122:21:011
81780,0rcu_preempt19-21ksoftirqd/121:51:251
81770,0rcu_preempt9086-1kworker/0:2H19:33:170
81770,0rcu_preempt19960-21ssh21:20:381
81770,0rcu_preempt19-21ksoftirqd/123:53:371
81770,0rcu_preempt19-21ksoftirqd/123:26:531
81770,0rcu_preempt19-21ksoftirqd/100:32:221
81760,0rcu_preempt54-21kswapd022:48:301
81760,0rcu_preempt19-21ksoftirqd/123:59:261
81760,0rcu_preempt19-21ksoftirqd/121:52:461
81760,0rcu_preempt19-21ksoftirqd/121:24:391
81760,0rcu_preempt19-21ksoftirqd/121:10:311
81760,0rcu_preempt19-21ksoftirqd/120:55:101
81760,0rcu_preempt19-21ksoftirqd/120:34:271
81750,0rcu_preempt5867-21apt-get20:57:541
81750,0rcu_preempt54-21kswapd022:38:091
81750,0rcu_preempt19-21ksoftirqd/122:32:371
81750,0rcu_preempt19-21ksoftirqd/122:14:201
81750,0rcu_preempt19-21ksoftirqd/119:23:201
81750,0rcu_preempt0-21swapper/119:55:551
81740,0rcu_preempt19-21ksoftirqd/123:47:471
81720,0rcu_preempt19-21ksoftirqd/123:34:311
81720,0rcu_preempt19-21ksoftirqd/120:48:021
81710,0rcu_preempt19-21ksoftirqd/120:38:161
81710,0rcu_preempt19-21ksoftirqd/100:13:261
81700,0rcu_preempt54-21kswapd023:30:341
81700,0rcu_preempt19-21ksoftirqd/119:15:221
81660,0rcu_preempt3-21ksoftirqd/000:02:270
81660,0rcu_preempt19-21ksoftirqd/119:48:071
81650,0rcu_preempt19-21ksoftirqd/121:04:251
81650,0rcu_preempt19-21ksoftirqd/119:08:081
10050630,0irq/346-484840054-21kswapd021:32:550
10050600,0irq/346-48484006681-1kworker/0:3H22:29:130
81560,0rcu_preempt54-21kswapd022:10:070
81560,0rcu_preempt3-21ksoftirqd/022:59:280
81560,0rcu_preempt3-21ksoftirqd/021:47:580
81550,0rcu_preempt3-21ksoftirqd/022:43:250
81550,0rcu_preempt3-21ksoftirqd/021:09:120
81550,0rcu_preempt3-21ksoftirqd/000:17:110
10050550,0irq/346-484840054-21kswapd021:40:570
10050530,0irq/346-4848400753-21rngd23:04:390
10050530,0irq/346-484840054-21kswapd023:36:170
10050530,0irq/346-484840013362-21munin-node0
10050520,0irq/346-484840054-21kswapd000:28:300
10050520,0irq/346-484840054-21kswapd000:27:000
10050510,0irq/346-484840054-21kswapd023:07:550
10050510,0irq/346-484840054-21kswapd022:26:400
10050500,0irq/346-484840054-21kswapd023:54:410
10050500,0irq/346-484840054-21kswapd000:12:410
10050490,0irq/346-484840054-21kswapd023:47:050
10050490,0irq/346-484840054-21kswapd022:55:570
10050490,0irq/346-484840054-21kswapd022:38:450
10050490,0irq/346-48484002609-21wget20:47:530
10050490,0irq/346-484840024918-21apt-get22:47:550
10050490,0irq/346-48484000-21swapper/022:16:470
10050490,0irq/346-48484000-21swapper/022:04:240
10050490,0irq/346-48484000-21swapper/022:04:240
10050480,0irq/346-4848400753-21rngd23:48:480
10050480,0irq/346-484840054-21kswapd023:17:350
10050480,0irq/346-484840054-21kswapd022:34:510
10050480,0irq/346-484840054-21kswapd021:57:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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