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2023-09-22 - 06:52

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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Click here to display the system's profile data or here to proceed to next system.
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 10 highest latencies:
System rack9slot8s.osadl.org (updated Fri Sep 22, 2023 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
818502030,0irq/46-4a100000830-21kworker/0:219:08:130
81950930,0irq/47-4a100000985-21ssh21:44:360
81950930,0irq/47-4a10000029775-21apt-get21:35:020
81950910,0irq/47-4a1000002245-21snmpd22:45:300
81950910,0irq/47-4a10000020159-21diskmemload23:00:170
81950910,0irq/47-4a10000012782-21ssh23:38:530
81950900,0irq/47-4a10000018361-21rm23:52:430
81950890,0irq/47-4a10000015992-21kworker/u2:023:47:310
81950880,0irq/47-4a1000005553-21sshd19:32:400
81950880,0irq/47-4a10000014517-21sendmail-msp22:20:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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