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2024-09-11 - 19:09

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #2

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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 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 rack1slot2s.osadl.org (updated Wed Sep 11, 2024 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2318628984,0sleep00-21swapper/006:53:560
2303427170,0sleep20-21swapper/206:52:102
291350430,0irq/25-eth10-21swapper/306:51:553
2320223531,0sleep10-21swapper/106:54:091
28415070,0irq/27-eth0-tx-0-21swapper/212:21:452
28405070,0irq/26-eth0-rx-0-21swapper/310:57:063
339960,0migration/34349-21munin-node10:50:543
339960,0migration/316912-21hddtemp_smartct08:55:503
339960,0migration/314215-21munin-node08:00:533
339960,0migration/311558-21sh12:19:143
28415060,0irq/27-eth0-tx-32341-21ssh10:29:582
28415060,0irq/27-eth0-tx-23610-21munin-node06:55:520
28415060,0irq/27-eth0-tx-0-21swapper/212:20:112
28415060,0irq/27-eth0-tx-0-21swapper/212:10:512
28415060,0irq/27-eth0-tx-0-21swapper/212:09:382
28415060,0irq/27-eth0-tx-0-21swapper/211:55:312
28415060,0irq/27-eth0-tx-0-21swapper/211:38:122
28415060,0irq/27-eth0-tx-0-21swapper/211:18:092
28415060,0irq/27-eth0-tx-0-21swapper/211:09:282
28415060,0irq/27-eth0-tx-0-21swapper/210:21:322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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