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2022-07-06 - 17:29

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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  TI

ARM TI AM5728 @1000 MHz, Linux 4.4.12-rt17-osadl-g86c9060003 (Profile)

Latency plot of shadow in rack #a, slot #5
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 Wed Jul 06, 2022 12:43:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81940,0rcu_preempt19280-21kworker/1:111:33:141
81890,0rcu_preempt3-21ksoftirqd/012:23:360
81880,0rcu_preempt19-21ksoftirqd/111:48:271
81850,0rcu_preempt19-21ksoftirqd/108:43:531
81750,0rcu_preempt19-21ksoftirqd/110:43:461
81720,0rcu_preempt3-21ksoftirqd/007:28:570
81700,0rcu_preempt19-21ksoftirqd/112:33:141
81670,0rcu_preempt3-21ksoftirqd/009:43:470
81610,0rcu_preempt19-21ksoftirqd/110:58:351
81610,0rcu_preempt19-21ksoftirqd/107:53:471
81600,0rcu_preempt3-21ksoftirqd/010:43:350
81600,0rcu_preempt19-21ksoftirqd/111:53:331
81600,0rcu_preempt19-21ksoftirqd/108:18:441
81590,0rcu_preempt6053-21ssh10:53:330
81580,0rcu_preempt3-21ksoftirqd/012:17:260
81580,0rcu_preempt19280-21kworker/1:112:12:071
81580,0rcu_preempt19-21ksoftirqd/110:07:491
9950550,0irq/345-4848400181ktimersoftd/108:13:251
81550,0rcu_preempt9510-21diskmemload10:23:241
81550,0rcu_preempt19-21ksoftirqd/112:13:481
10050550,0irq/346-484840015600-1kworker/0:0H11:45:390
81540,0rcu_preempt2813-21cyclictest10:28:371
81540,0rcu_preempt19-21ksoftirqd/111:38:521
10050540,0irq/346-48484005981-1kworker/0:0H11:31:140
10050540,0irq/346-4848400329-1kworker/0:2H10:12:520
10050540,0irq/346-484840023985-1kworker/0:0H10:03:550
10050540,0irq/346-484840019554-1kworker/0:4H10:00:160
81530,0rcu_preempt19-21ksoftirqd/109:08:331
10050530,0irq/346-484840031615-1kworker/0:0H10:49:230
10050530,0irq/346-484840011137-1kworker/0:2H11:36:280
81520,0rcu_preempt19280-21kworker/1:107:08:241
81520,0rcu_preempt19-21ksoftirqd/110:21:321
10050520,0irq/346-484840031653-1kworker/0:2H12:35:560
10050520,0irq/346-484840015046-21ssh09:13:400
81510,0rcu_preempt19-21ksoftirqd/112:03:231
10050510,0irq/346-48484009293-1kworker/0:2H10:22:260
10050510,0irq/346-484840027095-1kworker/0:3H10:41:290
10050510,0irq/346-484840024521-1kworker/0:0H12:09:360
10050510,0irq/346-484840013724-1kworker/0:3H12:18:300
10050510,0irq/346-48484001020-1kworker/0:1H12:02:080
9950500,0irq/345-484840018782-21ping08:18:260
10050500,0irq/346-484840054-21kswapd009:32:050
10050500,0irq/346-484840015600-1kworker/0:0H11:42:170
10050500,0irq/346-48484001528-1kworker/0:2H11:28:100
9950490,0irq/345-48484000-21swapper/009:48:480
9950490,0irq/345-48484000-21swapper/009:48:480
81490,0rcu_preempt3-21ksoftirqd/012:28:240
81490,0rcu_preempt3-21ksoftirqd/009:19:050
81490,0rcu_preempt3-21ksoftirqd/008:58:530
10050490,0irq/346-48484005780-1kworker/0:1H09:42:210
10050490,0irq/346-484840030003-1kworker/0:0H09:37:100
10050490,0irq/346-484840027361-21rm09:27:570
10050490,0irq/346-48484000-21swapper/107:48:391
81480,0rcu_preempt3-21ksoftirqd/011:13:440
81480,0rcu_preempt19-21ksoftirqd/112:28:141
81480,0rcu_preempt19-21ksoftirqd/112:18:521
10050480,0irq/346-484840011401-1kworker/0:3H10:32:560
9950470,0irq/345-484840081rcu_preempt09:55:551
9950470,0irq/345-48484005348-21ssh12:05:320
9950470,0irq/345-484840022226-21dropbear11:48:290
81470,0rcu_preempt19-21ksoftirqd/111:23:261
81470,0rcu_preempt19-21ksoftirqd/109:13:361
10050470,0irq/346-48484004805-1kworker/0:0H10:17:470
10050470,0irq/346-484840029234-21ssh11:19:120
10050470,0irq/346-484840012226-21ssh11:00:150
10050470,0irq/346-484840011401-1kworker/0:3H10:33:370
81460,0rcu_preempt19-21ksoftirqd/107:14:061
10050460,0irq/346-484840031615-1kworker/0:0H11:08:450
10050460,0irq/346-484840023072-21ls08:08:480
10050460,0irq/346-484840014466-21aten_rapower_cu11:03:260
9950450,0irq/345-484840011354-21apt-get10:23:230
81450,0rcu_preempt19-21ksoftirqd/110:38:301
81450,0rcu_preempt19-21ksoftirqd/109:58:271
81450,0rcu_preempt19-21ksoftirqd/107:03:461
10050450,0irq/346-48484007592-1kworker/0:3H09:09:070
10050450,0irq/346-484840029813-21ls08:28:480
10050450,0irq/346-48484002025-21ls07:03:420
81440,0rcu_preempt19-21ksoftirqd/109:32:251
10050440,0irq/346-484840027471-21ssh11:53:470
10050440,0irq/346-484840015444-1kworker/0:2H07:48:480
9950430,0irq/345-484840011431-21if_eth107:33:360
81430,0rcu_preempt5374-21ls08:53:391
81430,0rcu_preempt19-21ksoftirqd/109:43:281
81430,0rcu_preempt19-21ksoftirqd/109:33:451
10050430,0irq/346-484840021065-21ssh09:57:440
10050430,0irq/346-48484000-21swapper/007:23:420
9950420,0irq/345-48484000-21swapper/007:53:400
81420,0rcu_preempt19-21ksoftirqd/111:43:551
81420,0rcu_preempt19-21ksoftirqd/108:08:371
1699420,0migration/127096-21taskset12:29:421
10050420,0irq/346-484840028528-1kworker/0:3H08:28:130
9950410,0irq/345-48484000-21swapper/007:43:140
10050410,0irq/346-48484008021-21munin-node0
10050410,0irq/346-484840020661-1kworker/0:0H08:03:250
81400,0rcu_preempt19-21ksoftirqd/109:41:111
81400,0rcu_preempt19-21ksoftirqd/109:28:161
81400,0rcu_preempt19-21ksoftirqd/109:20:221
81400,0rcu_preempt19-21ksoftirqd/108:02:371
10050400,0irq/346-48484006222-21sh08:58:130
10050400,0irq/346-48484004507-21aten_rapower_cu07:13:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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