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2024-07-27 - 07:46

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 highest latencies:
System rackaslot5s.osadl.org (updated Sat Jul 27, 2024 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811710,0rcu_preempt19973-1kworker/0:1H19:39:060
811420,0rcu_preempt13293-1kworker/0:2H19:19:430
811180,0rcu_preempt19-21ksoftirqd/100:31:331
811160,0rcu_preempt19-21ksoftirqd/121:18:141
811150,0rcu_preempt19-21ksoftirqd/121:27:441
811130,0rcu_preempt19-21ksoftirqd/121:42:011
811120,0rcu_preempt19-21ksoftirqd/121:09:281
811110,0rcu_preempt784-21rngd00:24:161
811090,0rcu_preempt29791-1kworker/1:1H22:39:351
811080,0rcu_preempt0-21swapper/122:58:371
811070,0rcu_preempt19-21ksoftirqd/123:19:081
811060,0rcu_preempt19-21ksoftirqd/120:39:131
811050,0rcu_preempt27273-1kworker/1:2H20:04:271
811040,0rcu_preempt7695-21kworker/u4:100:00:191
811040,0rcu_preempt21225-21kworker/1:123:09:321
811030,0rcu_preempt14534-21ssh22:17:091
811010,0rcu_preempt19-21ksoftirqd/121:49:151
811010,0rcu_preempt0-21swapper/122:38:371
81990,0rcu_preempt19-21ksoftirqd/120:24:081
81980,0rcu_preempt25528-21ssh23:05:051
81970,0rcu_preempt19-21ksoftirqd/122:01:211
81970,0rcu_preempt14924-21ping19:27:311
81960,0rcu_preempt19-21ksoftirqd/123:33:341
81960,0rcu_preempt0-21swapper/122:10:101
81960,0rcu_preempt0-21swapper/121:21:231
81940,0rcu_preempt9950irq/345-484840022:09:100
81940,0rcu_preempt54-21kswapd023:34:361
81940,0rcu_preempt19-21ksoftirqd/121:38:511
81940,0rcu_preempt19-21ksoftirqd/100:36:451
81940,0rcu_preempt19-21ksoftirqd/100:36:451
81940,0rcu_preempt0-21swapper/100:11:031
81930,0rcu_preempt54-21kswapd021:57:341
81930,0rcu_preempt19-21ksoftirqd/122:32:061
81920,0rcu_preempt19-21ksoftirqd/123:46:471
81900,0rcu_preempt19-21ksoftirqd/120:23:481
81890,0rcu_preempt19-21ksoftirqd/122:28:541
81880,0rcu_preempt19-21ksoftirqd/122:22:291
81880,0rcu_preempt19-21ksoftirqd/100:14:581
81870,0rcu_preempt19-21ksoftirqd/123:15:311
81860,0rcu_preempt19-21ksoftirqd/119:34:201
81850,0rcu_preempt19-21ksoftirqd/123:27:401
81850,0rcu_preempt19-21ksoftirqd/123:27:401
81850,0rcu_preempt19-21ksoftirqd/120:13:331
81850,0rcu_preempt19-21ksoftirqd/100:08:191
81830,0rcu_preempt19-21ksoftirqd/122:45:521
81830,0rcu_preempt19-21ksoftirqd/119:19:351
81820,0rcu_preempt19-21ksoftirqd/100:20:281
81810,0rcu_preempt19-21ksoftirqd/119:39:131
81800,0rcu_preempt0-21swapper/123:40:011
81790,0rcu_preempt19-21ksoftirqd/120:14:201
81790,0rcu_preempt19-21ksoftirqd/119:53:591
81780,0rcu_preempt19-21ksoftirqd/120:31:071
81770,0rcu_preempt19-21ksoftirqd/119:45:331
81760,0rcu_preempt19-21ksoftirqd/119:59:311
81750,0rcu_preempt19-21ksoftirqd/120:59:431
81750,0rcu_preempt19-21ksoftirqd/119:29:101
81740,0rcu_preempt19-21ksoftirqd/122:59:121
81740,0rcu_preempt19-21ksoftirqd/122:49:281
81740,0rcu_preempt19-21ksoftirqd/121:48:361
81740,0rcu_preempt0-21swapper/121:31:011
81740,0rcu_preempt0-21swapper/121:31:011
33622740,0sleep010050irq/346-484840020:19:540
81730,0rcu_preempt19-21ksoftirqd/122:07:431
81730,0rcu_preempt19-21ksoftirqd/120:50:561
81720,0rcu_preempt27507-21grep19:54:341
81720,0rcu_preempt19-21ksoftirqd/123:56:201
81720,0rcu_preempt19-21ksoftirqd/121:08:141
81720,0rcu_preempt19-21ksoftirqd/119:18:371
81710,0rcu_preempt19-21ksoftirqd/123:51:321
81700,0rcu_preempt19-21ksoftirqd/120:47:281
81690,0rcu_preempt54-21kswapd021:19:230
81690,0rcu_preempt3-21ksoftirqd/023:39:260
81690,0rcu_preempt19-21ksoftirqd/119:11:551
81680,0rcu_preempt3-21ksoftirqd/021:09:120
315432680,0sleep09950irq/345-484840022:35:470
81670,0rcu_preempt19-21ksoftirqd/120:37:121
81670,0rcu_preempt13653-21latency_hist20:54:001
10050670,0irq/346-48484000-21swapper/020:01:060
10050660,0irq/346-484840018605-1kworker/0:0H00:14:340
10050660,0irq/346-484840016202-1kworker/0:2H22:59:100
10050660,0irq/346-48484000-21swapper/022:19:010
81650,0rcu_preempt54-21kswapd023:46:320
81640,0rcu_preempt3-21ksoftirqd/021:59:210
81640,0rcu_preempt3-21ksoftirqd/021:49:210
31662640,0sleep09950irq/345-484840021:28:030
81630,0rcu_preempt3-21ksoftirqd/022:54:170
81630,0rcu_preempt3-21ksoftirqd/021:39:400
81620,0rcu_preempt3-21ksoftirqd/021:54:400
81600,0rcu_preempt3-21ksoftirqd/023:49:190
81600,0rcu_preempt3-21ksoftirqd/021:34:300
81600,0rcu_preempt3-21ksoftirqd/000:00:150
81590,0rcu_preempt54-21kswapd023:20:230
81590,0rcu_preempt3-21ksoftirqd/022:31:180
81580,0rcu_preempt54-21kswapd020:44:280
69612580,0chrt9950irq/345-484840023:57:160
81570,0rcu_preempt3-21ksoftirqd/021:04:360
9950530,0irq/345-484840054-21kswapd022:39:160
81530,0rcu_preempt14924-21ping19:34:000
10050530,0irq/346-484840054-21kswapd000:19:060
1166599521,0cyclictest29368-21ping20:09:100
10050520,0irq/346-48484008652-21sendmail-msp20:39:370
172372500,0sleep09950irq/345-484840023:32:370
10050500,0irq/346-48484008890-1kworker/0:0H22:47:360
10050500,0irq/346-48484008626-1kworker/0:3H00:08:080
10050500,0irq/346-4848400501-1kworker/0:7H22:19:270
10050490,0irq/346-484840054-21kswapd020:59:420
81480,0rcu_preempt3-21ksoftirqd/022:04:140
10050480,0irq/346-484840054-21kswapd022:25:420
10050480,0irq/346-484840054-21kswapd021:29:460
10050480,0irq/346-484840054-21kswapd021:29:460
10050480,0irq/346-48484000-21swapper/023:39:000
9950470,0irq/345-48484000-21swapper/000:37:540
9950470,0irq/345-48484000-21swapper/000:37:540
10050470,0irq/346-4848400784-21rngd23:24:330
10050470,0irq/346-4848400784-21rngd23:24:330
10050470,0irq/346-484840054-21kswapd021:44:180
10050470,0irq/346-484840027144-1kworker/0:0H23:07:370
10050470,0irq/346-48484000-21swapper/021:17:200
10050460,0irq/346-484840054-21kswapd000:32:160
10050460,0irq/346-484840032743-1kworker/0:1H19:04:200
10050460,0irq/346-48484000-21swapper/000:10:070
10050450,0irq/346-4848400730-21ssh23:14:170
10050450,0irq/346-48484000-21swapper/022:50:280
10050450,0irq/346-48484000-21swapper/000:24:170
10050440,0irq/346-484840061132sleep020:29:310
10050440,0irq/346-484840054-21kswapd020:19:000
10050430,0irq/346-484840014924-21ping19:39:000
10050430,0irq/346-484840013814-1kworker/0:0H20:54:170
10050420,0irq/346-48484006989-1kworker/0:1H20:34:310
10050420,0irq/346-48484003083-1kworker/0:3H20:24:150
10050420,0irq/346-484840027144-1kworker/0:0H23:10:110
10050420,0irq/346-48484000-21swapper/019:24:320
9950410,0irq/345-484840024703-1kworker/0:0H19:49:120
10050410,0irq/346-484840014924-21ping19:44:310
81400,0rcu_preempt19-21ksoftirqd/119:04:241
1166599409,0cyclictest29368-21ping20:06:060
10050400,0irq/346-484840032743-1kworker/0:1H19:09:200
10050400,0irq/346-484840026522-1kworker/0:2H19:54:330
10050400,0irq/346-484840013293-1kworker/0:2H19:14:150
10050390,0irq/346-484840011908-1kworker/0:1H20:49:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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