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2023-10-04 - 01:43

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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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 Tue Oct 03, 2023 12:43:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81710,0rcu_preempt3-21ksoftirqd/009:29:390
81680,0rcu_preempt3-21ksoftirqd/007:18:180
81600,0rcu_preempt567-21kworker/0:008:00:240
81600,0rcu_preempt3-21ksoftirqd/010:51:190
81600,0rcu_preempt19-21ksoftirqd/111:37:201
81600,0rcu_preempt19-21ksoftirqd/111:37:201
81600,0rcu_preempt19-21ksoftirqd/110:55:121
10050600,0irq/346-484840026366-1kworker/1:1H11:20:291
81590,0rcu_preempt19-21ksoftirqd/112:28:021
81580,0rcu_preempt3-21ksoftirqd/009:33:060
81570,0rcu_preempt3-21ksoftirqd/012:23:000
81570,0rcu_preempt23973-21kworker/0:111:27:570
81570,0rcu_preempt17159-21kworker/0:208:32:490
81560,0rcu_preempt3-21ksoftirqd/008:02:480
81550,0rcu_preempt3-21ksoftirqd/008:23:120
10050550,0irq/346-484840054-21kswapd009:55:001
81530,0rcu_preempt8266-21apt-get09:47:470
81530,0rcu_preempt3-21ksoftirqd/012:32:310
81530,0rcu_preempt3-21ksoftirqd/011:12:580
81530,0rcu_preempt12842-21ls11:38:130
81520,0rcu_preempt29045-21ssh10:12:560
81520,0rcu_preempt29045-21ssh10:12:560
81520,0rcu_preempt22017-21kworker/0:008:12:180
10050520,0irq/346-484840010127-1kworker/0:0H09:10:020
81510,0rcu_preempt3-21ksoftirqd/012:04:160
81510,0rcu_preempt3-21ksoftirqd/011:07:570
81510,0rcu_preempt3-21ksoftirqd/009:22:530
81510,0rcu_preempt3-21ksoftirqd/009:19:020
81510,0rcu_preempt16791-21php-cgi09:57:550
10050510,0irq/346-484840054-21kswapd011:18:150
81500,0rcu_preempt3-21ksoftirqd/011:47:020
81500,0rcu_preempt3-21ksoftirqd/010:38:260
81500,0rcu_preempt3-21ksoftirqd/010:27:530
81500,0rcu_preempt3-21ksoftirqd/010:27:530
81500,0rcu_preempt3-21ksoftirqd/009:02:580
81500,0rcu_preempt3-21ksoftirqd/008:18:120
81500,0rcu_preempt3-21ksoftirqd/008:13:060
81500,0rcu_preempt19-21ksoftirqd/110:22:501
81500,0rcu_preempt19-21ksoftirqd/108:17:511
81500,0rcu_preempt19-21ksoftirqd/108:05:081
81500,0rcu_preempt13966-21ls10:33:020
10050500,0irq/346-4848400811-21rngd11:34:310
10050500,0irq/346-4848400811-21rngd11:34:310
10050500,0irq/346-48484005445-1kworker/0:3H11:01:420
10050500,0irq/346-484840054-21kswapd010:18:070
81490,0rcu_preempt3-21ksoftirqd/010:53:390
81490,0rcu_preempt3-21ksoftirqd/010:24:220
81490,0rcu_preempt3-21ksoftirqd/007:55:390
81490,0rcu_preempt23973-21kworker/0:111:02:500
81490,0rcu_preempt19-21ksoftirqd/111:56:191
81490,0rcu_preempt19-21ksoftirqd/108:22:591
13150490,0irq/301-48020000-21swapper/011:47:560
13150490,0irq/301-48020000-21swapper/011:47:560
10050490,0irq/346-48484001088-21cyclictest12:11:420
81480,0rcu_preempt3-21ksoftirqd/012:19:510
81480,0rcu_preempt3-21ksoftirqd/011:58:130
81480,0rcu_preempt3-21ksoftirqd/010:46:410
81480,0rcu_preempt3-21ksoftirqd/010:11:570
81480,0rcu_preempt3-21ksoftirqd/009:37:490
81480,0rcu_preempt19-21ksoftirqd/110:17:521
81480,0rcu_preempt19-21ksoftirqd/109:25:321
81480,0rcu_preempt19-21ksoftirqd/107:48:161
81480,0rcu_preempt19-21ksoftirqd/107:42:551
81480,0rcu_preempt19-21ksoftirqd/107:18:011
10050480,0irq/346-484840030298-21ls12:28:030
10050480,0irq/346-48484001088-21cyclictest11:23:380
81470,0rcu_preempt567-21kworker/0:007:13:170
81470,0rcu_preempt3-21ksoftirqd/011:53:000
81470,0rcu_preempt3-21ksoftirqd/009:52:590
81470,0rcu_preempt3-21ksoftirqd/007:47:580
81470,0rcu_preempt24668-21wget09:27:531
81470,0rcu_preempt19-21ksoftirqd/108:10:011
81470,0rcu_preempt19-21ksoftirqd/107:26:031
81470,0rcu_preempt14444-21apt-get12:12:460
81470,0rcu_preempt14444-21apt-get12:12:460
10050470,0irq/346-48484003-21ksoftirqd/007:33:160
10050470,0irq/346-48484003-21ksoftirqd/007:33:160
81460,0rcu_preempt3-21ksoftirqd/009:16:500
81460,0rcu_preempt3-21ksoftirqd/007:27:070
81460,0rcu_preempt25446-21kworker/0:010:03:140
81460,0rcu_preempt19317-21kworker/0:107:02:480
81460,0rcu_preempt19317-21kworker/0:107:02:480
81460,0rcu_preempt19-21ksoftirqd/111:47:581
81460,0rcu_preempt19-21ksoftirqd/111:47:581
81460,0rcu_preempt19-21ksoftirqd/110:27:591
81460,0rcu_preempt19-21ksoftirqd/110:27:591
81460,0rcu_preempt19-21ksoftirqd/109:46:091
81460,0rcu_preempt1687-21munin-node0
81460,0rcu_preempt10781-21ssh11:04:021
81450,0rcu_preempt3662-21ls08:53:000
81450,0rcu_preempt3-21ksoftirqd/007:27:490
81450,0rcu_preempt19-21ksoftirqd/112:14:291
81450,0rcu_preempt19-21ksoftirqd/112:14:291
81450,0rcu_preempt19-21ksoftirqd/111:42:481
81450,0rcu_preempt19-21ksoftirqd/111:32:131
81450,0rcu_preempt19-21ksoftirqd/110:48:131
81450,0rcu_preempt19-21ksoftirqd/110:37:531
81450,0rcu_preempt19-21ksoftirqd/110:08:021
81450,0rcu_preempt19-21ksoftirqd/107:57:591
81450,0rcu_preempt19-21ksoftirqd/107:33:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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