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2022-07-06 - 06:42

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #8

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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ARM TI AM3354 @800 MHz, Linux 4.18.7-rt5 (Profile)

Latency plot of shadow in rack #9, slot #8
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50000000 -m -n -a0 -t1 -p99 -i400 -h400 -q
Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack9slot8s.osadl.org (updated Wed Jul 06, 2022 00:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
820502030,0irq/46-4a1000004167-21kworker/0:119:06:360
131979912043,0cyclictest82050irq/46-4a10000021:30:370
131979911947,0cyclictest82050irq/46-4a10000023:40:590
131979911842,0cyclictest82050irq/46-4a10000000:30:160
131979911745,0cyclictest82050irq/46-4a10000023:49:580
131979911543,0cyclictest82050irq/46-4a10000023:01:210
131979911539,0cyclictest82050irq/46-4a10000023:10:290
131979911443,0cyclictest82050irq/46-4a10000000:05:380
131979911233,0cyclictest2092-21ntp_states20:20:400
13197999532,0cyclictest0-21swapper22:34:130
13197998136,0cyclictest0-21swapper23:18:570
82050710,0irq/46-4a1000009245-21kworker/u2:722:35:440
82050700,0irq/46-4a10000016276-21ssh21:10:200
82050680,0irq/46-4a1000003792-21kworker/u2:400:03:080
82050680,0irq/46-4a10000030671-21meminfo22:45:470
82050680,0irq/46-4a10000024935-21kworker/u2:221:35:190
82050670,0irq/46-4a10000029904-21kworker/u2:521:45:550
82050670,0irq/46-4a10000028876-21kworker/u2:1523:06:150
82050670,0irq/46-4a10000018820-21kworker/u2:423:33:010
82050660,0irq/46-4a1000009933-1kworker/u3:320:50:340
82050660,0irq/46-4a1000004674-21kworker/u2:121:55:140
82050660,0irq/46-4a10000028873-1kworker/u3:723:26:090
82050660,0irq/46-4a10000025987-21ntp_states19:51:120
82050660,0irq/46-4a10000013220-21ssh22:10:340
13197996651,0cyclictest82050irq/46-4a10000023:35:190
13197996642,0cyclictest82050irq/46-4a10000021:40:430
82050650,0irq/46-4a10000013411-21kworker/u2:800:23:380
82050650,0irq/46-4a1000000-21swapper22:26:480
82050650,0irq/46-4a1000000-21swapper22:18:480
82050650,0irq/46-4a1000000-21swapper21:17:420
13197996553,0cyclictest82050irq/46-4a10000000:10:300
82150640,0irq/47-4a10000014279-21kworker/u2:421:05:140
82050640,0irq/46-4a1000004552-21kworker/u2:122:58:090
82050640,0irq/46-4a1000004097-1kworker/u3:420:35:150
82050640,0irq/46-4a10000027269-1kworker/u3:522:40:240
82050640,0irq/46-4a10000023820-1kworker/u3:422:51:110
82050640,0irq/46-4a10000017512-1kworker/u3:319:26:170
82050640,0irq/46-4a10000014255-21/usr/sbin/munin00:25:500
82050630,0irq/46-4a1000008490-1kworker/u3:400:15:450
82050630,0irq/46-4a10000017122-21kworker/u2:322:25:070
82050630,0irq/46-4a10000017069-21ssh23:23:350
82050630,0irq/46-4a10000012808-21kworker/u2:720:57:080
82050630,0irq/46-4a1000000-21swapper21:28:440
82150620,0irq/47-4a1000004634-21/usr/sbin/munin20:30:590
82050620,0irq/46-4a1000008527-1kworker/u3:219:31:020
82050610,0irq/46-4a1000000-21swapper22:07:020
82050610,0irq/46-4a1000000-21swapper21:52:120
13197996150,0cyclictest82050irq/46-4a10000023:54:290
13197996047,0cyclictest82050irq/46-4a10000021:20:590
13197996047,0cyclictest82050irq/46-4a10000019:55:530
13197996031,0cyclictest0-21swapper19:20:140
13197995947,0cyclictest82050irq/46-4a10000020:45:470
13197995941,0cyclictest0-21swapper20:25:130
13197995848,0cyclictest82050irq/46-4a10000020:00:470
13197995832,0cyclictest0-21swapper20:15:140
13197995711,0cyclictest19926-21ssh00:36:110
13197995645,0cyclictest101ktimersoftd/020:05:160
13197995644,0cyclictest82050irq/46-4a10000023:55:590
13197995638,0cyclictest31377-21/usr/sbin/munin20:10:250
13197995545,0cyclictest94850irq/33-mmc022:00:390
13197995429,0cyclictest0-21swapper19:15:080
101540,0ktimersoftd/00-21swapper21:03:260
101530,0ktimersoftd/00-21swapper19:42:440
13197995235,0cyclictest24628-21/usr/sbin/munin19:45:490
13197995033,0cyclictest22165-21sshd19:38:370
13197994930,0cyclictest13678-21ntp_states19:10:390
13197994924,0cyclictest0-21swapper20:40:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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