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2025-07-12 - 11:25

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, 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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack7slot2s.osadl.org (updated Sat Jul 12, 2025 00:48:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12212299296206,75cyclictest0-21swapper/019:31:090
12212299275146,115cyclictest123403-21grep19:16:260
12212299275146,115cyclictest123403-21grep19:16:260
12212299272161,70cyclictest147912-21memory21:35:520
12212299272161,70cyclictest147912-21memory21:35:520
12212299272157,74cyclictest164504-21kworker/u10:1-rpciod23:05:530
12212299272157,74cyclictest164504-21kworker/u10:1-rpciod23:05:530
12212299268161,93cyclictest150177-21gcc21:46:290
12212299268161,93cyclictest150177-21gcc21:46:290
12212299268154,97cyclictest144360-21ssh21:20:040
12212299268154,97cyclictest144360-21ssh21:20:040
12212299267154,99cyclictest289-21rdisc20:17:050
12212299266157,92cyclictest164275-21ssh22:52:090
12212299266157,92cyclictest164275-21ssh22:52:090
1221229926568,88cyclictest144235-21kworker/u9:9+rpciod21:35:030
1221229926568,88cyclictest144235-21kworker/u9:9+rpciod21:35:030
12212299265160,92cyclictest162598-21latency_hist22:45:080
12212299265151,97cyclictest174192-21latency_hist23:40:060
12212299265149,100cyclictest140049-21ntpq20:56:080
12212299265139,111cyclictest0-21swapper/020:10:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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