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2024-04-19 - 23:40

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 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

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 50 highest latencies:
System rack9slot8s.osadl.org (updated Fri Apr 19, 2024 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
818501800,0irq/46-4a1000009-21ksoftirqd/007:06:020
81950860,0irq/47-4a10000029351-21ssh11:39:180
81950860,0irq/47-4a10000021001-21ssh12:37:520
81950850,0irq/47-4a100000989-21kworker/u2:309:16:420
81950840,0irq/47-4a10000018325-21ssh12:30:540
81950840,0irq/47-4a10000015102-21kworker/u2:111:08:030
81950840,0irq/47-4a10000013347-21ssh12:19:340
81850830,0irq/46-4a10000017383-21apt-get07:30:290
73722836,0sleep07381-21ssh12:04:150
81950820,0irq/47-4a1000006851-21snmpd10:46:240
81950820,0irq/47-4a10000027118-21ssh10:16:150
81950820,0irq/47-4a10000026144-21ssh11:31:350
81950820,0irq/47-4a10000023108-21ssh10:06:160
81950820,0irq/47-4a10000021273-21ssh11:20:250
81950820,0irq/47-4a10000018438-21ssh11:14:150
81950820,0irq/47-4a10000011708-21ssh09:38:200
81950820,0irq/47-4a1000001048-21kworker/u2:110:37:120
81850820,0irq/46-4a1000009-21ksoftirqd/010:33:350
81950810,0irq/47-4a1000005061-21ssh11:58:460
81950810,0irq/47-4a10000032572-21ssh11:46:440
81950810,0irq/47-4a10000025642-21ssh10:12:420
81950810,0irq/47-4a10000016286-21rm12:26:140
81950810,0irq/47-4a10000015680-21ssh09:48:130
81850810,0irq/46-4a10000019612-21seq07:43:280
81950800,0irq/47-4a1000009090-21rm12:08:330
81950800,0irq/47-4a1000006851-21snmpd08:25:480
81950800,0irq/47-4a1000004608-21ssh10:40:110
81950800,0irq/47-4a10000031766-21ssh10:27:380
81950800,0irq/47-4a10000031507-21ssh11:44:210
81950800,0irq/47-4a10000029643-21ssh10:22:110
81950800,0irq/47-4a1000001949-21ssh11:51:050
81950800,0irq/47-4a10000017383-21apt-get07:30:020
81950800,0irq/47-4a1000001551-21rm09:13:210
81950800,0irq/47-4a10000013856-21ssh12:20:340
81950800,0irq/47-4a10000012601-21ssh09:40:130
81950800,0irq/47-4a10000010256-21kworker/u2:112:11:350
81850800,0irq/46-4a1000008707-21runrttasks10:50:120
81950790,0irq/47-4a1000008900-21ssh09:31:030
81950790,0irq/47-4a1000007259-21ssh09:26:490
81950790,0irq/47-4a1000005557-21sh09:22:440
81950790,0irq/47-4a10000032445-21runrttasks09:08:040
81950790,0irq/47-4a10000028021-21sendmail08:40:010
81950790,0irq/47-4a1000002279-21lldpd07:56:590
81950790,0irq/47-4a10000021356-21sshd10:01:530
81950790,0irq/47-4a10000019718-21rm11:17:030
81950790,0irq/47-4a10000019004-21ssh09:56:070
81950790,0irq/47-4a10000012937-21ssh11:01:160
81850790,0irq/46-4a1000006851-21snmpd11:26:390
81850790,0irq/46-4a1000006851-21snmpd09:51:090
292582790,0chrt29056-21kworker/u2:008:48:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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