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2024-12-10 - 22:16

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 376 highest latencies:
System rackaslot5s.osadl.org (updated Tue Dec 10, 2024 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811300,0rcu_preempt3-21ksoftirqd/012:27:090
81980,0rcu_preempt19-21ksoftirqd/111:31:201
81980,0rcu_preempt19-21ksoftirqd/110:40:331
81980,0rcu_preempt19-21ksoftirqd/110:17:111
10050720,0irq/346-48484000-21swapper/011:29:090
81670,0rcu_preempt12749-1kworker/1:0H10:24:031
81620,0rcu_preempt10481-21kworker/0:210:15:040
81610,0rcu_preempt3-21ksoftirqd/012:17:210
10050610,0irq/346-48484009312-1kworker/1:0H11:41:461
10050610,0irq/346-484840054-21kswapd010:55:571
10050610,0irq/346-484840011731-1kworker/1:0H09:43:501
81600,0rcu_preempt3-21ksoftirqd/010:00:140
10050600,0irq/346-484840054-21kswapd011:15:551
10050600,0irq/346-484840016871-1kworker/1:1H11:20:301
10050580,0irq/346-484840011731-1kworker/1:0H09:37:301
81570,0rcu_preempt3-21ksoftirqd/011:15:100
81570,0rcu_preempt19-21ksoftirqd/109:32:471
10050570,0irq/346-48484008814-1kworker/1:2H10:12:221
9950560,0irq/345-48484000-21swapper/112:05:531
81560,0rcu_preempt3-21ksoftirqd/008:30:200
81560,0rcu_preempt19-21ksoftirqd/107:25:251
10050560,0irq/346-484840054-21kswapd011:53:331
10050560,0irq/346-484840054-21kswapd009:29:550
10050560,0irq/346-484840014348-1kworker/1:1H12:27:511
10050560,0irq/346-484840012749-1kworker/1:0H10:26:201
81550,0rcu_preempt3-21ksoftirqd/012:35:130
81550,0rcu_preempt3-21ksoftirqd/012:08:530
81550,0rcu_preempt14527-21kworker/0:010:22:260
10050550,0irq/346-4848400753-21rngd12:10:260
10050550,0irq/346-484840022450-1kworker/1:3H09:49:471
10050550,0irq/346-484840013321-1kworker/1:4H11:11:261
81540,0rcu_preempt3-21ksoftirqd/010:25:150
81540,0rcu_preempt21668-21kworker/0:208:40:190
81540,0rcu_preempt19-21ksoftirqd/107:19:551
10050540,0irq/346-484840054-21kswapd011:49:141
10050540,0irq/346-484840032684-1kworker/1:0H10:47:581
10050540,0irq/346-484840013893-1kworker/1:2H12:22:071
10050540,0irq/346-484840011731-1kworker/1:0H09:50:581
81530,0rcu_preempt3-21ksoftirqd/012:24:170
81530,0rcu_preempt3-21ksoftirqd/010:12:330
81530,0rcu_preempt3-21ksoftirqd/009:55:120
81530,0rcu_preempt3-21ksoftirqd/008:55:110
10050530,0irq/346-48484008706-21seq11:35:230
10050530,0irq/346-484840023201-1kworker/1:4H12:36:311
81520,0rcu_preempt3-21ksoftirqd/011:55:160
81520,0rcu_preempt3-21ksoftirqd/011:44:120
81520,0rcu_preempt3-21ksoftirqd/011:09:160
81520,0rcu_preempt3-21ksoftirqd/010:55:090
81520,0rcu_preempt3-21ksoftirqd/010:42:240
81520,0rcu_preempt3-21ksoftirqd/009:36:390
81520,0rcu_preempt23437-21kworker/0:110:36:050
81520,0rcu_preempt15496-21apt-get11:45:050
10050520,0irq/346-484840054-21kswapd009:54:230
10050520,0irq/346-48484002608-1kworker/1:0H09:12:501
10050520,0irq/346-484840011731-1kworker/1:0H09:28:501
81510,0rcu_preempt9597-21ping07:58:150
81510,0rcu_preempt9075-21kworker/0:108:22:320
81510,0rcu_preempt3-21ksoftirqd/012:30:240
81510,0rcu_preempt3-21ksoftirqd/011:20:190
81510,0rcu_preempt3-21ksoftirqd/011:01:430
81510,0rcu_preempt3-21ksoftirqd/011:01:430
81510,0rcu_preempt3-21ksoftirqd/010:05:070
81510,0rcu_preempt3-21ksoftirqd/009:46:130
81510,0rcu_preempt3-21ksoftirqd/009:40:320
81510,0rcu_preempt3-21ksoftirqd/009:20:200
81510,0rcu_preempt3-21ksoftirqd/009:16:420
10050510,0irq/346-484840054-21kswapd009:26:510
10050510,0irq/346-48484004808-21processes10:50:270
81500,0rcu_preempt3-21ksoftirqd/011:10:170
81500,0rcu_preempt3-21ksoftirqd/010:49:340
81500,0rcu_preempt3-21ksoftirqd/010:30:580
81500,0rcu_preempt3-21ksoftirqd/009:13:020
81500,0rcu_preempt3-21ksoftirqd/008:49:460
81500,0rcu_preempt3-21ksoftirqd/008:15:170
81500,0rcu_preempt3-21ksoftirqd/008:15:170
81500,0rcu_preempt3-21ksoftirqd/008:05:100
81500,0rcu_preempt19-21ksoftirqd/107:34:501
81500,0rcu_preempt0-21swapper/111:08:181
10050500,0irq/346-484840054-21kswapd012:02:160
10050500,0irq/346-484840054-21kswapd011:50:130
10050500,0irq/346-484840028683-1kworker/1:1H10:51:491
10050500,0irq/346-484840025951-21munin-node0
10050500,0irq/346-484840013893-1kworker/1:2H12:16:501
81490,0rcu_preempt3-21ksoftirqd/011:30:140
81490,0rcu_preempt31420-21kworker/1:109:57:551
81490,0rcu_preempt19-21ksoftirqd/110:04:251
10050490,0irq/346-484840054-21kswapd011:37:581
10050490,0irq/346-48484003990-1kworker/0:2H07:47:450
81480,0rcu_preempt3-21ksoftirqd/008:25:140
81480,0rcu_preempt3-21ksoftirqd/008:10:080
81480,0rcu_preempt3-21ksoftirqd/007:13:370
81480,0rcu_preempt31420-21kworker/1:112:13:071
81480,0rcu_preempt19-21ksoftirqd/108:25:541
81480,0rcu_preempt19-21ksoftirqd/108:05:151
10050480,0irq/346-484840028969-21ssh12:02:181
10050480,0irq/346-484840025482-21ssh11:57:471
10050480,0irq/346-484840019931-1kworker/1:3H10:35:141
81470,0rcu_preempt3329-21if_eth307:35:380
81470,0rcu_preempt3-21ksoftirqd/008:35:210
81470,0rcu_preempt3-21ksoftirqd/008:00:130
81470,0rcu_preempt30156-21ping07:23:590
81470,0rcu_preempt2002-21kworker/u4:211:03:031
81470,0rcu_preempt2002-21kworker/u4:211:03:031
81470,0rcu_preempt19-21ksoftirqd/107:58:231
81470,0rcu_preempt19-21ksoftirqd/107:40:451
10050470,0irq/346-484840021051-21ssh12:34:511
81460,0rcu_preempt19-21ksoftirqd/108:15:281
81460,0rcu_preempt19-21ksoftirqd/108:15:281
81460,0rcu_preempt19-21ksoftirqd/108:10:171
81460,0rcu_preempt19-21ksoftirqd/107:45:461
81460,0rcu_preempt19-21ksoftirqd/107:37:431
10050460,0irq/346-48484002608-1kworker/1:0H09:17:021
10050460,0irq/346-484840010339-21ssh09:23:271
81450,0rcu_preempt3-21ksoftirqd/008:50:150
81450,0rcu_preempt3-21ksoftirqd/007:50:230
81450,0rcu_preempt28034-21apt-get08:55:051
81450,0rcu_preempt2096-21kworker/1:207:10:171
81450,0rcu_preempt19-21ksoftirqd/111:25:191
81450,0rcu_preempt19-21ksoftirqd/108:20:181
81450,0rcu_preempt19-21ksoftirqd/108:00:111
81450,0rcu_preempt19-21ksoftirqd/107:24:071
81440,0rcu_preempt30724-21users09:00:210
81440,0rcu_preempt19-21ksoftirqd/110:05:041
10050440,0irq/346-484840028657-21munin-node0
10050440,0irq/346-484840028657-21munin-node0
10050440,0irq/346-484840019931-1kworker/1:3H10:33:391
81430,0rcu_preempt31529-21df_inode09:05:100
81430,0rcu_preempt19-21ksoftirqd/108:40:101
81420,0rcu_preempt19-21ksoftirqd/108:50:191
2687799421,0cyclictest3179650kworker/0:2H07:26:410
9950410,0irq/345-484840030156-21ping07:40:240
81410,0rcu_preempt19-21ksoftirqd/108:30:121
81410,0rcu_preempt19-21ksoftirqd/107:05:041
81400,0rcu_preempt30156-21ping07:30:070
81400,0rcu_preempt29870-21dropbear09:00:071
81400,0rcu_preempt19-21ksoftirqd/108:45:121
81390,0rcu_preempt19-21ksoftirqd/109:09:541
81390,0rcu_preempt19-21ksoftirqd/108:39:061
81370,0rcu_preempt19-21ksoftirqd/107:53:341
81370,0rcu_preempt19-21ksoftirqd/107:15:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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