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2023-12-07 - 22:23

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 792 highest latencies:
System rackaslot5s.osadl.org (updated Thu Dec 07, 2023 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81680,0rcu_preempt3-21ksoftirqd/007:57:210
81640,0rcu_preempt3-21ksoftirqd/008:01:550
81640,0rcu_preempt3-21ksoftirqd/008:01:550
13150640,0irq/301-48020007557-21if_err_eth008:37:050
81590,0rcu_preempt3-21ksoftirqd/008:51:580
81570,0rcu_preempt3-21ksoftirqd/011:26:540
81570,0rcu_preempt3-21ksoftirqd/008:47:060
81570,0rcu_preempt3-21ksoftirqd/008:31:580
81560,0rcu_preempt3-21ksoftirqd/010:42:030
81560,0rcu_preempt26164-21ping08:17:140
10050560,0irq/346-48484000-21swapper/011:47:060
81550,0rcu_preempt3-21ksoftirqd/011:02:010
81550,0rcu_preempt3-21ksoftirqd/010:11:550
81550,0rcu_preempt13040-21ssh09:42:240
81550,0rcu_preempt13040-21ssh09:42:240
81540,0rcu_preempt54-21kswapd012:27:281
81540,0rcu_preempt28097-21ssh12:34:290
81540,0rcu_preempt2387-21kworker/0:212:30:360
10050540,0irq/346-484840054-21kswapd009:50:190
81530,0rcu_preempt3-21ksoftirqd/011:42:200
81530,0rcu_preempt3-21ksoftirqd/011:22:000
81530,0rcu_preempt3-21ksoftirqd/010:22:060
81530,0rcu_preempt3-21ksoftirqd/009:37:040
81530,0rcu_preempt19-21ksoftirqd/107:02:051
10050530,0irq/346-484840054-21kswapd008:57:090
81520,0rcu_preempt9532-21ntp_states08:42:180
81520,0rcu_preempt3-21ksoftirqd/011:57:170
81520,0rcu_preempt3-21ksoftirqd/011:36:050
81520,0rcu_preempt3-21ksoftirqd/010:52:250
81520,0rcu_preempt3-21ksoftirqd/010:26:550
81520,0rcu_preempt3-21ksoftirqd/009:22:280
81510,0rcu_preempt3-21ksoftirqd/012:07:170
81510,0rcu_preempt3-21ksoftirqd/011:52:490
81510,0rcu_preempt3-21ksoftirqd/010:11:250
81510,0rcu_preempt3-21ksoftirqd/010:03:140
81510,0rcu_preempt3-21ksoftirqd/008:21:580
81510,0rcu_preempt3-21ksoftirqd/008:12:120
81510,0rcu_preempt22555-21kworker/1:011:42:271
81510,0rcu_preempt20712-21ssh11:17:030
10050510,0irq/346-484840017754-21ssh09:07:110
81500,0rcu_preempt3-21ksoftirqd/011:37:150
81500,0rcu_preempt3-21ksoftirqd/010:47:040
81500,0rcu_preempt3-21ksoftirqd/010:47:040
81500,0rcu_preempt3-21ksoftirqd/009:31:570
81500,0rcu_preempt3-21ksoftirqd/009:29:490
81500,0rcu_preempt3-21ksoftirqd/009:14:180
81500,0rcu_preempt19-21ksoftirqd/112:23:061
81500,0rcu_preempt19-21ksoftirqd/108:14:231
81500,0rcu_preempt19-21ksoftirqd/107:26:381
10050500,0irq/346-484840031667-21rm12:05:140
81490,0rcu_preempt3-21ksoftirqd/012:16:040
81490,0rcu_preempt3-21ksoftirqd/010:31:590
81490,0rcu_preempt3-21ksoftirqd/009:17:040
81490,0rcu_preempt21798-21apt-get10:36:530
81490,0rcu_preempt19-21ksoftirqd/110:20:271
81480,0rcu_preempt3-21ksoftirqd/011:12:070
81480,0rcu_preempt3-21ksoftirqd/010:57:070
81480,0rcu_preempt3-21ksoftirqd/010:17:240
81480,0rcu_preempt3-21ksoftirqd/009:57:030
81480,0rcu_preempt3-21ksoftirqd/009:02:180
81480,0rcu_preempt3-21ksoftirqd/008:10:160
81480,0rcu_preempt3-21ksoftirqd/007:42:500
81480,0rcu_preempt3-21ksoftirqd/007:12:180
81480,0rcu_preempt19-21ksoftirqd/112:12:251
81480,0rcu_preempt19-21ksoftirqd/110:10:531
81480,0rcu_preempt19-21ksoftirqd/108:16:561
9950470,0irq/345-48484000-21swapper/009:53:100
81470,0rcu_preempt3-21ksoftirqd/007:56:390
81470,0rcu_preempt21337-21kworker/0:207:36:450
81470,0rcu_preempt19-21ksoftirqd/108:02:051
81470,0rcu_preempt19-21ksoftirqd/108:02:051
81470,0rcu_preempt13407-21ping07:27:130
10050470,0irq/346-484840017830-21ssh12:23:530
81460,0rcu_preempt19-21ksoftirqd/111:21:301
81460,0rcu_preempt19-21ksoftirqd/109:38:421
81460,0rcu_preempt19-21ksoftirqd/107:17:101
81460,0rcu_preempt19-21ksoftirqd/107:17:101
81460,0rcu_preempt13407-21ping07:16:540
81460,0rcu_preempt13407-21ping07:16:540
10050460,0irq/346-48484003557-1kworker/0:0H08:27:050
10050460,0irq/346-484840013053-1kworker/0:2H12:21:370
9950450,0irq/345-484840013407-21ping07:32:080
81450,0rcu_preempt3-21ksoftirqd/007:21:550
81450,0rcu_preempt19-21ksoftirqd/112:11:061
81450,0rcu_preempt19-21ksoftirqd/110:41:591
81450,0rcu_preempt19-21ksoftirqd/109:51:371
81450,0rcu_preempt19-21ksoftirqd/109:31:561
81450,0rcu_preempt19-21ksoftirqd/108:10:471
81450,0rcu_preempt19-21ksoftirqd/107:42:291
81450,0rcu_preempt14822-1kworker/1:2H07:27:191
10050450,0irq/346-48484000-21swapper/011:06:520
81440,0rcu_preempt3-21ksoftirqd/007:06:570
81440,0rcu_preempt22555-21kworker/1:011:23:291
81440,0rcu_preempt19-21ksoftirqd/112:17:021
81440,0rcu_preempt19-21ksoftirqd/111:57:021
81440,0rcu_preempt19-21ksoftirqd/110:01:561
81440,0rcu_preempt19-21ksoftirqd/109:22:251
81440,0rcu_preempt18590-1kworker/1:2H10:32:181
81430,0rcu_preempt3-21ksoftirqd/007:02:170
81430,0rcu_preempt23243-21apt-get07:46:560
81430,0rcu_preempt19-21ksoftirqd/112:32:141
81430,0rcu_preempt19-21ksoftirqd/111:37:051
81430,0rcu_preempt19-21ksoftirqd/110:46:551
81430,0rcu_preempt19-21ksoftirqd/110:46:551
81430,0rcu_preempt19-21ksoftirqd/108:32:091
81430,0rcu_preempt19-21ksoftirqd/107:57:111
81430,0rcu_preempt19-21ksoftirqd/107:55:271
81420,0rcu_preempt19-21ksoftirqd/112:02:081
81420,0rcu_preempt19-21ksoftirqd/111:52:031
81420,0rcu_preempt19-21ksoftirqd/111:27:081
81420,0rcu_preempt19-21ksoftirqd/111:12:111
81420,0rcu_preempt19-21ksoftirqd/111:04:101
81420,0rcu_preempt19-21ksoftirqd/110:57:011
81420,0rcu_preempt19-21ksoftirqd/110:27:101
81420,0rcu_preempt19-21ksoftirqd/109:59:101
81420,0rcu_preempt19-21ksoftirqd/109:18:321
81420,0rcu_preempt19-21ksoftirqd/109:12:021
81410,0rcu_preempt19-21ksoftirqd/111:49:451
81410,0rcu_preempt19-21ksoftirqd/111:06:511
81410,0rcu_preempt19-21ksoftirqd/109:56:181
81410,0rcu_preempt19-21ksoftirqd/109:42:051
81410,0rcu_preempt19-21ksoftirqd/109:42:051
81410,0rcu_preempt19-21ksoftirqd/108:22:161
81410,0rcu_preempt1298-21snmpd08:51:071
81400,0rcu_preempt9969-21chrt08:42:581
81400,0rcu_preempt54-21kswapd011:34:341
81400,0rcu_preempt2927-21ssh10:12:081
81400,0rcu_preempt19-21ksoftirqd/110:37:251
81400,0rcu_preempt19-21ksoftirqd/110:24:111
81400,0rcu_preempt19-21ksoftirqd/109:27:101
81400,0rcu_preempt19-21ksoftirqd/109:10:161
81400,0rcu_preempt19-21ksoftirqd/109:04:481
81400,0rcu_preempt19-21ksoftirqd/108:54:441
81400,0rcu_preempt19-21ksoftirqd/108:31:281
81400,0rcu_preempt19-21ksoftirqd/107:37:371
81400,0rcu_preempt19-21ksoftirqd/107:08:021
81390,0rcu_preempt19-21ksoftirqd/110:53:331
81390,0rcu_preempt19-21ksoftirqd/108:37:081
81390,0rcu_preempt19-21ksoftirqd/107:49:251
81390,0rcu_preempt19-21ksoftirqd/107:14:121
81370,0rcu_preempt19-21ksoftirqd/108:59:461
10050340,0irq/346-484840019039-21ls07:32:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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