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2023-09-26 - 14:46

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 
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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 376 highest latencies:
System rackaslot5s.osadl.org (updated Tue Sep 26, 2023 00:43:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81900,0rcu_preempt9950irq/345-484840021:33:050
81880,0rcu_preempt19-21ksoftirqd/121:08:071
81850,0rcu_preempt54-21kswapd019:22:281
81850,0rcu_preempt19-21ksoftirqd/120:00:151
81850,0rcu_preempt19-21ksoftirqd/100:27:561
81850,0rcu_preempt10011-21kworker/1:021:46:321
81840,0rcu_preempt19-21ksoftirqd/120:11:361
81840,0rcu_preempt19-21ksoftirqd/100:08:271
81830,0rcu_preempt19-21ksoftirqd/121:14:151
81830,0rcu_preempt19-21ksoftirqd/119:31:091
81820,0rcu_preempt19-21ksoftirqd/121:28:201
81820,0rcu_preempt19-21ksoftirqd/120:15:491
81820,0rcu_preempt19-21ksoftirqd/120:03:381
81820,0rcu_preempt19-21ksoftirqd/119:43:021
81820,0rcu_preempt19-21ksoftirqd/119:26:531
81810,0rcu_preempt19-21ksoftirqd/119:54:521
81800,0rcu_preempt3082-21ssh23:32:551
81800,0rcu_preempt19-21ksoftirqd/122:15:151
81800,0rcu_preempt19-21ksoftirqd/121:33:191
81800,0rcu_preempt19-21ksoftirqd/100:35:281
81790,0rcu_preempt8383-21ls23:38:241
81790,0rcu_preempt433-21kworker/1:100:02:171
81790,0rcu_preempt19-21ksoftirqd/122:10:091
81790,0rcu_preempt19-21ksoftirqd/120:19:201
81790,0rcu_preempt19-21ksoftirqd/119:38:191
81790,0rcu_preempt19-21ksoftirqd/119:38:191
81790,0rcu_preempt0-21swapper/123:01:111
81790,0rcu_preempt0-21swapper/123:01:111
81780,0rcu_preempt3-21ksoftirqd/022:02:540
81780,0rcu_preempt28501-21kworker/u4:022:18:101
81780,0rcu_preempt19-21ksoftirqd/123:14:281
81780,0rcu_preempt19-21ksoftirqd/122:40:431
81780,0rcu_preempt19-21ksoftirqd/121:57:511
81780,0rcu_preempt19-21ksoftirqd/121:20:071
81780,0rcu_preempt19-21ksoftirqd/119:33:131
81780,0rcu_preempt19-21ksoftirqd/100:25:111
81780,0rcu_preempt19-21ksoftirqd/100:25:111
81780,0rcu_preempt19-21ksoftirqd/100:13:281
81770,0rcu_preempt19-21ksoftirqd/123:08:461
81770,0rcu_preempt19-21ksoftirqd/122:56:281
81770,0rcu_preempt19-21ksoftirqd/122:44:181
81770,0rcu_preempt19-21ksoftirqd/120:29:061
81770,0rcu_preempt19-21ksoftirqd/120:23:281
81770,0rcu_preempt19-21ksoftirqd/100:19:461
81760,0rcu_preempt19-21ksoftirqd/123:54:321
81760,0rcu_preempt19-21ksoftirqd/122:35:351
81760,0rcu_preempt19-21ksoftirqd/122:04:141
81760,0rcu_preempt19-21ksoftirqd/121:23:471
81760,0rcu_preempt19-21ksoftirqd/120:34:261
81750,0rcu_preempt19-21ksoftirqd/123:17:451
81750,0rcu_preempt19-21ksoftirqd/123:05:051
81750,0rcu_preempt19-21ksoftirqd/122:49:181
81750,0rcu_preempt19-21ksoftirqd/122:23:091
81750,0rcu_preempt19-21ksoftirqd/120:47:591
81750,0rcu_preempt19-21ksoftirqd/120:38:051
81750,0rcu_preempt19-21ksoftirqd/119:50:011
81740,0rcu_preempt6294-21http_loadtime21:03:011
81740,0rcu_preempt54-21kswapd023:45:471
81740,0rcu_preempt54-21kswapd023:22:401
81740,0rcu_preempt19-21ksoftirqd/123:28:081
81740,0rcu_preempt19-21ksoftirqd/121:53:421
81740,0rcu_preempt19-21ksoftirqd/121:48:141
81740,0rcu_preempt19-21ksoftirqd/121:39:151
81740,0rcu_preempt19-21ksoftirqd/120:43:181
81740,0rcu_preempt18771-21ssh23:51:031
81730,0rcu_preempt19-21ksoftirqd/122:27:571
81730,0rcu_preempt19-21ksoftirqd/122:27:571
81730,0rcu_preempt19-21ksoftirqd/119:08:091
81720,0rcu_preempt19-21ksoftirqd/120:58:171
81720,0rcu_preempt19-21ksoftirqd/119:16:061
81720,0rcu_preempt19-21ksoftirqd/100:03:081
81710,0rcu_preempt19-21ksoftirqd/120:53:111
81610,0rcu_preempt3-21ksoftirqd/021:53:120
9950570,0irq/345-484840019122-1kworker/0:2H22:38:260
10050570,0irq/346-484840026003-21munin-node0
10050550,0irq/346-484840054-21kswapd023:32:440
10050540,0irq/346-4848400811-21rngd21:41:080
10050540,0irq/346-484840054-21kswapd023:42:460
10050540,0irq/346-484840054-21kswapd021:48:070
10050530,0irq/346-4848400811-21rngd22:52:570
10050530,0irq/346-484840054-21kswapd023:55:310
10050530,0irq/346-484840054-21kswapd023:12:530
10050520,0irq/346-48484007963-1kworker/0:0H23:03:060
10050520,0irq/346-484840054-21kswapd022:33:150
10050510,0irq/346-484840054-21kswapd023:47:580
10050510,0irq/346-484840054-21kswapd021:43:160
10050510,0irq/346-484840054-21kswapd000:32:370
10050510,0irq/346-484840054-21kswapd000:23:050
10050510,0irq/346-484840054-21kswapd000:23:050
10050510,0irq/346-48484000-21swapper/022:14:000
10050500,0irq/346-484840081rcu_preempt21:58:050
10050500,0irq/346-484840054-21kswapd022:45:170
10050500,0irq/346-484840054-21kswapd021:19:440
10050500,0irq/346-484840054-21kswapd000:17:010
10050500,0irq/346-484840054-21kswapd000:00:070
10050500,0irq/346-484840027750-21ls23:23:130
10050500,0irq/346-484840015752-21ssh23:08:430
10050500,0irq/346-48484000-21swapper/021:13:000
10050490,0irq/346-484840054-21kswapd023:01:220
10050490,0irq/346-484840054-21kswapd023:01:220
10050490,0irq/346-484840054-21kswapd022:50:270
10050490,0irq/346-484840054-21kswapd022:18:400
10050490,0irq/346-484840054-21kswapd000:08:310
10050490,0irq/346-484840010655-1kworker/0:2H22:27:470
10050490,0irq/346-484840010655-1kworker/0:2H22:27:470
10050490,0irq/346-48484000-21swapper/023:28:270
10050480,0irq/346-484840089952sleep000:19:120
10050480,0irq/346-484840054-21kswapd023:40:590
10050480,0irq/346-484840054-21kswapd023:19:150
10050480,0irq/346-484840054-21kswapd022:08:130
10050480,0irq/346-484840054-21kswapd021:10:010
81470,0rcu_preempt32588-21apt-get19:02:520
10050470,0irq/346-484840054-21kswapd022:22:400
10050470,0irq/346-484840054-21kswapd021:26:490
10050470,0irq/346-484840054-21kswapd000:36:060
10050470,0irq/346-484840054-21kswapd000:03:280
9950460,0irq/345-484840018412-21seq20:00:150
10050460,0irq/346-48484007229-1kworker/0:2H21:04:410
10050450,0irq/346-484840012827-21seq19:39:310
10050450,0irq/346-484840012827-21seq19:39:310
10050450,0irq/346-48484000-21swapper/020:32:360
10050440,0irq/346-484840026191-21ls20:23:220
81430,0rcu_preempt19-21ksoftirqd/119:02:551
81430,0rcu_preempt16673-21ping20:03:290
10050430,0irq/346-48484005631-21irqstats19:18:110
10050430,0irq/346-48484004959-21ping19:33:300
10050430,0irq/346-48484002537-21munin-node0
10050430,0irq/346-484840024233-21latency20:18:060
10050430,0irq/346-484840019973-1kworker/0:2H20:08:070
69442422,0sleep04636-1kworker/0:0H19:23:020
1599420,0migration/04167-21munin-node0
10050420,0irq/346-48484009855-21munin-run19:32:370
10050410,0irq/346-48484004408-21apt-get20:57:540
9950400,0irq/345-48484002312-1kworker/0:0H20:54:400
231452400,0sleep021605-1kworker/0:1H20:13:360
180999402,0cyclictest28633-21aten_rapower_cu20:32:570
10050400,0irq/346-484840054-21kswapd019:44:290
10050400,0irq/346-48484001129-21aten_rapower_cu20:47:530
10050390,0irq/346-484840030254-21munin-node0
149922380,0sleep014449-1kworker/0:2H19:48:500
166132370,0chrt15055-1kworker/0:1H19:53:420
10050360,0irq/346-4848400355-21sed20:43:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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