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2022-12-02 - 08:39

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #4

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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  Intel

x86 Intel Core i7-E610 @2530 MHz, Linux 5.4.17-rt9 (Profile)

Latency plot of shadow in rack #5, slot #4
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -n -a -t3 -p99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: ondemand
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack5slot4s.osadl.org (updated Fri Dec 02, 2022 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12228213969,10sleep00-21swapper/019:06:180
1271999131126,2cyclictest0-21swapper/119:10:021
1271499130122,8cyclictest0-21swapper/019:10:020
123042115101,11sleep20-21swapper/219:07:172
125122114104,7sleep30-21swapper/319:09:583
12283210968,10sleep10-21swapper/119:07:001
12724999796,1cyclictest0-21swapper/219:16:102
304542790,0sleep10-21swapper/122:05:221
293612760,1sleep30-21swapper/319:20:233
242972750,0sleep10-21swapper/122:20:211
99382730,2sleep01271499cyclictest22:45:440
227932730,0sleep30-21swapper/322:35:253
26272720,0sleep20-21swapper/220:25:192
47662680,0sleep20-21swapper/200:29:272
291952670,0sleep10-21swapper/121:49:061
15722270,1sleep00-21swapper/021:35:000
194002260,0sleep20-21swapper/221:10:142
162672220,0sleep1201rcuc/120:35:191
1271999200,19cyclictest352-21systemd-journal21:51:401
1271999200,18cyclictest538-21systemd-logind19:45:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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