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2024-04-20 - 07:09

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 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 20 highest latencies:
System rack9slot8s.osadl.org (updated Sat Apr 20, 2024 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
819501580,0irq/47-4a10000023572-21runrttasks19:08:030
81950920,0irq/47-4a10000018292-21ssh22:43:290
81950920,0irq/47-4a10000010683-21ssh22:25:560
11572898,0sleep01168-21apt-config20:10:100
81950880,0irq/47-4a1000008699-21kworker/u2:822:35:200
81950880,0irq/47-4a1000008684-21sendmail-msp21:00:020
81950880,0irq/47-4a1000004189-21awk20:30:000
81950880,0irq/47-4a10000018069-21ssh23:56:410
81950870,0irq/47-4a1000009585-21ssh23:37:400
81950870,0irq/47-4a10000032221-21ssh00:31:010
81950870,0irq/47-4a1000003208-21ssh22:08:310
81950870,0irq/47-4a10000024417-21kworker/u2:200:13:410
81950870,0irq/47-4a10000022955-21ssh22:54:380
81950870,0irq/47-4a10000013304-21kworker/u2:422:32:150
81950860,0irq/47-4a1000008023-21munin-run22:20:030
81950860,0irq/47-4a10000030831-21ssh21:56:470
81950860,0irq/47-4a10000024428-21kworker/u2:422:11:120
81950860,0irq/47-4a10000023557-21munin-run00:10:010
81950860,0irq/47-4a10000020818-21ssh22:49:300
81950860,0irq/47-4a10000013416-21ssh23:46:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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