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2021-10-21 - 20:37

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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ARMv7 Processor rev 2 (v7l), 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 alll highest latencies:
System rack9slot8s.osadl.org (updated Thu Oct 21, 2021 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
946501820,0irq/33-mmc09673-21kworker/0:007:08:360
81950950,0irq/47-4a10000030387-21run-parts12:40:020
81950910,0irq/47-4a10000010478-21ssh10:03:550
81950900,0irq/47-4a1000004811-21kworker/u2:508:40:310
81950900,0irq/47-4a10000028453-21ls11:36:120
81950900,0irq/47-4a10000026232-21rm11:32:190
81950900,0irq/47-4a10000019459-21ssh10:20:350
81950900,0irq/47-4a10000010738-21kworker/u2:207:10:040
81950890,0irq/47-4a1000006490-21ssh09:56:100
81950890,0irq/47-4a10000012596-21kworker/u2:910:11:160
169102899,0sleep016853-21apt-get12:15:270
166702890,0chrt32757-21kworker/u2:1009:15:160
81950880,0irq/47-4a1000008075-21ssh10:59:160
81950880,0irq/47-4a1000003280-21ssh11:50:200
94650870,0irq/33-mmc011392-21/usr/sbin/munin12:05:370
81950870,0irq/47-4a1000009157-21ssh12:00:530
81950870,0irq/47-4a10000028683-21ssh09:37:040
81950870,0irq/47-4a10000027413-21ssh10:35:140
81950870,0irq/47-4a10000020493-21rm11:21:180
81950870,0irq/47-4a10000014685-21/usr/sbin/munin07:20:240
81950870,0irq/47-4a1000001195-21df08:26:120
81950860,0irq/47-4a1000007463-21kworker/u2:410:26:560
81950860,0irq/47-4a1000007399-21kworker/u2:311:05:170
81950860,0irq/47-4a1000007386-21ssh11:57:250
81950860,0irq/47-4a100000496-21/usr/sbin/munin11:46:070
81950860,0irq/47-4a1000003372-21ssh09:50:440
81950860,0irq/47-4a1000003319-21ssh10:50:320
81950860,0irq/47-4a10000024864-21sshd10:30:350
81950860,0irq/47-4a10000024743-21ssh09:30:160
81850860,0irq/46-4a10000032241-21ntp_states08:20:420
81850860,0irq/46-4a10000030256-21ssh10:40:300
81950850,0irq/47-4a10000032355-21ssh09:44:250
81950850,0irq/47-4a10000031715-21kworker/u2:010:20:050
81950850,0irq/47-4a10000030463-21ssh11:40:320
81950850,0irq/47-4a10000024679-21/usr/sbin/munin07:55:260
81950850,0irq/47-4a10000021622-21rm09:24:300
81950850,0irq/47-4a10000019668-21ssh12:20:240
81950850,0irq/47-4a10000014041-21rm11:10:120
81950850,0irq/47-4a10000011040-21/usr/sbin/munin09:00:480
81950840,0irq/47-4a1000006745-21/usr/sbin/munin08:45:280
81950840,0irq/47-4a10000030400-21/usr/sbin/munin08:15:310
81950840,0irq/47-4a10000025475-21ssh12:30:520
81950840,0irq/47-4a1000002454-21/usr/sbin/munin08:30:330
81950840,0irq/47-4a10000023433-21ssh11:26:580
81950840,0irq/47-4a10000017356-21/usr/sbin/munin11:16:070
81950840,0irq/47-4a10000012314-21ssh10:06:430
81950840,0irq/47-4a10000011178-21latency_hist11:05:030
81950830,0irq/47-4a1000004249-21ntp_states08:35:440
81950830,0irq/47-4a10000022702-21rm12:25:450
81950830,0irq/47-4a10000022054-21ssh09:25:180
81950830,0irq/47-4a1000001793-21ssh10:47:080
81950830,0irq/47-4a10000017525-21/usr/sbin/munin07:30:440
81950830,0irq/47-4a10000016358-21ssh12:14:210
81950830,0irq/47-4a10000013760-21diskmemload09:45:190
81950820,0irq/47-4a10000012849-21ntp_states09:05:440
81850820,0irq/46-4a10000013973-21ssh09:10:160
81950810,0irq/47-4a10000028405-21sshd08:06:350
81950810,0irq/47-4a10000025628-21kworker/u2:108:10:310
81950810,0irq/47-4a10000017401-21munin-run07:30:020
81950810,0irq/47-4a10000013845-21ls07:15:550
81950800,0irq/47-4a100000273912chrt08:04:510
81950800,0irq/47-4a10000023621-21ntp_offset07:50:380
81950800,0irq/47-4a10000019842-21kworker/u2:1107:40:290
81950790,0irq/47-4a1000008781-21ls08:50:480
81950790,0irq/47-4a10000022749-21kworker/u2:007:50:010
192312790,0sleep017092-21kworker/u2:407:35:350
81950780,0irq/47-4a1000007717-21kworker/u2:008:55:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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