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2024-04-27 - 00:23

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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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 Apr 26, 2024 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81880,0rcu_preempt19-21ksoftirqd/110:33:571
81880,0rcu_preempt19-21ksoftirqd/110:03:031
81870,0rcu_preempt19-21ksoftirqd/109:51:121
81860,0rcu_preempt19-21ksoftirqd/111:49:431
81860,0rcu_preempt19-21ksoftirqd/111:32:111
81860,0rcu_preempt19-21ksoftirqd/108:15:541
81860,0rcu_preempt19-21ksoftirqd/107:12:131
81850,0rcu_preempt19-21ksoftirqd/111:39:291
81850,0rcu_preempt19-21ksoftirqd/111:23:121
81850,0rcu_preempt19-21ksoftirqd/111:10:131
81850,0rcu_preempt19-21ksoftirqd/111:10:131
81850,0rcu_preempt19-21ksoftirqd/110:18:091
81840,0rcu_preempt19-21ksoftirqd/111:25:001
81840,0rcu_preempt19-21ksoftirqd/108:08:521
81840,0rcu_preempt19-21ksoftirqd/107:56:211
81830,0rcu_preempt19-21ksoftirqd/109:14:311
81830,0rcu_preempt19-21ksoftirqd/108:13:321
81830,0rcu_preempt19-21ksoftirqd/107:36:051
81830,0rcu_preempt19-21ksoftirqd/107:23:481
81820,0rcu_preempt19-21ksoftirqd/110:51:571
81820,0rcu_preempt19-21ksoftirqd/108:03:151
81810,0rcu_preempt19-21ksoftirqd/112:26:571
81810,0rcu_preempt19-21ksoftirqd/110:21:311
10050810,0irq/346-484840016118-1kworker/0:0H11:31:520
81800,0rcu_preempt54-21kswapd009:23:391
81800,0rcu_preempt19-21ksoftirqd/109:35:481
81800,0rcu_preempt19-21ksoftirqd/107:34:021
81790,0rcu_preempt19-21ksoftirqd/112:08:511
81790,0rcu_preempt19-21ksoftirqd/112:00:001
81790,0rcu_preempt19-21ksoftirqd/111:56:111
81790,0rcu_preempt19-21ksoftirqd/109:49:111
81790,0rcu_preempt19-21ksoftirqd/108:59:491
81780,0rcu_preempt19443-21kworker/1:108:25:061
81780,0rcu_preempt19-21ksoftirqd/112:35:271
81780,0rcu_preempt19-21ksoftirqd/112:09:411
81780,0rcu_preempt19-21ksoftirqd/110:09:481
81780,0rcu_preempt19-21ksoftirqd/109:11:121
81780,0rcu_preempt19-21ksoftirqd/108:29:441
81780,0rcu_preempt19-21ksoftirqd/107:25:471
81770,0rcu_preempt54-21kswapd011:14:491
81770,0rcu_preempt19-21ksoftirqd/110:58:481
81770,0rcu_preempt19-21ksoftirqd/110:43:341
81770,0rcu_preempt19-21ksoftirqd/107:42:021
81770,0rcu_preempt19-21ksoftirqd/107:18:151
81770,0rcu_preempt0-21swapper/110:46:151
81760,0rcu_preempt54-21kswapd009:07:521
81760,0rcu_preempt23571-21kworker/1:010:34:251
81760,0rcu_preempt19-21ksoftirqd/112:29:401
81760,0rcu_preempt19-21ksoftirqd/112:18:041
81760,0rcu_preempt19-21ksoftirqd/110:07:241
81760,0rcu_preempt19-21ksoftirqd/109:40:131
81760,0rcu_preempt19-21ksoftirqd/109:28:151
81750,0rcu_preempt19443-21kworker/1:109:29:451
81750,0rcu_preempt19-21ksoftirqd/112:20:051
81750,0rcu_preempt19-21ksoftirqd/111:46:231
81750,0rcu_preempt19-21ksoftirqd/111:36:081
81750,0rcu_preempt19-21ksoftirqd/111:03:331
81740,0rcu_preempt19-21ksoftirqd/111:08:241
81740,0rcu_preempt19-21ksoftirqd/110:25:011
81740,0rcu_preempt19-21ksoftirqd/108:19:551
81730,0rcu_preempt3-21ksoftirqd/010:04:540
81730,0rcu_preempt19-21ksoftirqd/107:44:361
81720,0rcu_preempt19-21ksoftirqd/109:57:211
81720,0rcu_preempt19-21ksoftirqd/108:54:411
81710,0rcu_preempt19-21ksoftirqd/108:51:211
81700,0rcu_preempt3-21ksoftirqd/010:23:450
81700,0rcu_preempt19-21ksoftirqd/108:39:381
81650,0rcu_preempt19-21ksoftirqd/108:45:531
81610,0rcu_preempt3-21ksoftirqd/012:36:440
10050600,0irq/346-4848400812-21rngd11:54:390
81590,0rcu_preempt3-21ksoftirqd/010:50:200
10050590,0irq/346-484840028275-1kworker/0:1H11:47:050
81560,0rcu_preempt3-21ksoftirqd/009:24:080
81560,0rcu_preempt3-21ksoftirqd/009:10:320
10050560,0irq/346-48484007495-1kworker/0:3H10:40:110
10050560,0irq/346-484840054-21kswapd008:01:130
10050560,0irq/346-484840016118-1kworker/0:0H11:43:500
81550,0rcu_preempt3-21ksoftirqd/011:34:280
81530,0rcu_preempt3-21ksoftirqd/007:04:520
81530,0rcu_preempt19-21ksoftirqd/107:49:361
10050510,0irq/346-48484009599-1kworker/0:1H07:44:490
10050510,0irq/346-484840054-21kswapd012:32:560
10050510,0irq/346-484840029536-1kworker/0:1H09:46:020
10050510,0irq/346-484840015592-1kworker/0:2H10:14:470
81500,0rcu_preempt19-21ksoftirqd/108:36:011
10050500,0irq/346-484840054-21kswapd011:21:050
10050500,0irq/346-484840017233-21apt-get10:09:320
10050490,0irq/346-4848400812-21rngd12:10:160
10050490,0irq/346-484840054-21kswapd012:14:440
10050490,0irq/346-484840054-21kswapd010:55:200
10050490,0irq/346-484840032494-21ssh11:50:420
10050480,0irq/346-4848400953-1kworker/0:0H12:26:420
10050480,0irq/346-484840054-21kswapd011:08:000
10050480,0irq/346-484840054-21kswapd010:30:460
10050480,0irq/346-48484004737-21irqstats10:34:470
10050480,0irq/346-48484000-21swapper/012:07:060
10050480,0irq/346-48484000-21swapper/011:59:270
10050480,0irq/346-48484000-21swapper/009:38:570
13250470,0irq/301-48020000-21swapper/007:49:390
10050470,0irq/346-48484006677-1kworker/0:3H09:14:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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