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2024-11-24 - 07:53

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 Sun Nov 24, 2024 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81990,0rcu_preempt3-21ksoftirqd/022:01:030
81990,0rcu_preempt3-21ksoftirqd/000:26:460
81980,0rcu_preempt3-21ksoftirqd/022:22:080
81960,0rcu_preempt3-21ksoftirqd/000:02:030
81950,0rcu_preempt3-21ksoftirqd/021:25:070
81940,0rcu_preempt3-21ksoftirqd/022:51:420
81930,0rcu_preempt3-21ksoftirqd/022:38:460
81890,0rcu_preempt3-21ksoftirqd/020:43:520
81880,0rcu_preempt3-21ksoftirqd/019:29:460
81870,0rcu_preempt3-21ksoftirqd/019:46:020
81870,0rcu_preempt3-21ksoftirqd/019:43:190
81840,0rcu_preempt3-21ksoftirqd/021:35:060
81840,0rcu_preempt3-21ksoftirqd/019:26:220
81800,0rcu_preempt3-21ksoftirqd/023:13:500
81750,0rcu_preempt3-21ksoftirqd/022:58:510
10050730,0irq/346-48484001527-1kworker/0:2H23:38:110
81720,0rcu_preempt3-21ksoftirqd/022:56:570
81720,0rcu_preempt3-21ksoftirqd/000:21:120
81710,0rcu_preempt3-21ksoftirqd/021:43:350
81710,0rcu_preempt3-21ksoftirqd/021:29:580
81700,0rcu_preempt19-21ksoftirqd/122:18:401
81690,0rcu_preempt54-21kswapd023:44:010
81690,0rcu_preempt3-21ksoftirqd/023:05:180
81690,0rcu_preempt3-21ksoftirqd/022:33:460
81690,0rcu_preempt3-21ksoftirqd/000:37:230
81680,0rcu_preempt3-21ksoftirqd/023:25:530
81670,0rcu_preempt3-21ksoftirqd/022:24:570
81670,0rcu_preempt3-21ksoftirqd/022:09:350
81670,0rcu_preempt3-21ksoftirqd/021:52:120
81670,0rcu_preempt3-21ksoftirqd/021:08:390
81670,0rcu_preempt3-21ksoftirqd/000:18:260
81670,0rcu_preempt20248-21df_inode23:18:440
10050670,0irq/346-48484008397-1kworker/0:1H21:18:560
10050670,0irq/346-48484002394-1kworker/0:0H21:39:090
81660,0rcu_preempt3-21ksoftirqd/023:49:130
81660,0rcu_preempt3-21ksoftirqd/021:14:300
81640,0rcu_preempt3-21ksoftirqd/021:53:400
81640,0rcu_preempt3-21ksoftirqd/000:11:030
81630,0rcu_preempt3-21ksoftirqd/020:03:380
81630,0rcu_preempt3-21ksoftirqd/000:05:340
4350630,0irq/32-43300000752-21rngd20:28:411
10050630,0irq/346-4848400752-21rngd00:19:111
81620,0rcu_preempt5175-21apt-get19:08:370
14052610,0sleep19950irq/345-484840021:34:111
81600,0rcu_preempt3-21ksoftirqd/022:45:590
10050600,0irq/346-48484000-21swapper/023:38:300
81580,0rcu_preempt27634-21kworker/0:123:55:580
81580,0rcu_preempt14561-1kworker/0:2H19:37:000
81570,0rcu_preempt3-21ksoftirqd/020:13:550
81570,0rcu_preempt0-21swapper/019:13:460
81560,0rcu_preempt3-21ksoftirqd/019:48:390
9950540,0irq/345-48484008309-21ping19:33:491
10050540,0irq/346-484840054-21kswapd023:09:391
10050540,0irq/346-484840054-21kswapd021:50:241
10050540,0irq/346-48484000-21swapper/022:31:100
81530,0rcu_preempt3-21ksoftirqd/021:01:530
81530,0rcu_preempt3-21ksoftirqd/020:23:570
81530,0rcu_preempt3-21ksoftirqd/020:19:000
81530,0rcu_preempt26206-1kworker/1:0H22:07:531
81530,0rcu_preempt0-21swapper/100:33:001
81520,0rcu_preempt3-21ksoftirqd/022:13:590
81520,0rcu_preempt29958-1kworker/1:1H23:38:531
81520,0rcu_preempt0-21swapper/000:30:290
10050520,0irq/346-484840054-21kswapd000:00:011
9950510,0irq/345-48484006372-1kworker/1:3H19:20:291
9950510,0irq/345-484840022670-1kworker/1:3H23:23:061
9950510,0irq/345-484840014407-1kworker/1:3H21:17:311
81510,0rcu_preempt3-21ksoftirqd/023:28:510
81510,0rcu_preempt3-21ksoftirqd/020:28:530
81510,0rcu_preempt3-21ksoftirqd/019:58:270
81510,0rcu_preempt25735-21kworker/0:020:38:390
81510,0rcu_preempt19-21ksoftirqd/100:34:271
265242510,0sleep19950irq/345-484840021:25:361
10050510,0irq/346-484840026206-1kworker/1:0H22:09:001
10050510,0irq/346-484840022149-1kworker/1:1H22:02:231
9950500,0irq/345-48484009779-1kworker/1:3H23:08:251
9950500,0irq/345-484840027784-21munin-node1
9950500,0irq/345-48484002395-1kworker/1:0H21:46:011
81500,0rcu_preempt3-21ksoftirqd/022:04:370
81500,0rcu_preempt3-21ksoftirqd/019:58:560
81500,0rcu_preempt17528-1kworker/1:2H23:55:541
81500,0rcu_preempt0-21swapper/021:03:560
10050500,0irq/346-48484009983-1kworker/1:2H21:53:561
10050500,0irq/346-48484009777-1kworker/1:0H23:28:371
10050500,0irq/346-484840028382-21ssh21:28:351
10050500,0irq/346-48484001526-1kworker/1:3H23:43:411
10050500,0irq/346-48484000-21swapper/121:10:371
9950490,0irq/345-484840010041-1kworker/1:3H22:29:421
81490,0rcu_preempt5917-21kworker/0:123:08:380
81490,0rcu_preempt3-21ksoftirqd/020:53:420
81490,0rcu_preempt3-21ksoftirqd/020:08:580
10050490,0irq/346-484840054-21kswapd023:37:511
10050490,0irq/346-48484000-21swapper/122:58:421
9950480,0irq/345-484840010041-1kworker/1:3H22:27:591
9950480,0irq/345-48484000-21swapper/100:03:421
10050480,0irq/346-484840054-21kswapd020:41:151
10050480,0irq/346-48484000-21swapper/123:23:481
9950470,0irq/345-48484001419-1kworker/1:0H19:15:291
81460,0rcu_preempt3-21ksoftirqd/020:38:280
81460,0rcu_preempt19-21ksoftirqd/122:33:461
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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