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2024-07-27 - 07:01

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #1

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack4slot1s.osadl.org (updated Sat Jul 27, 2024 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2366621180,3chrt0-21swapper/319:19:123
2366621180,3chrt0-21swapper/319:19:123
1056121180,2sleep20-21swapper/220:09:242
1056121180,2sleep20-21swapper/220:09:242
316421070,3sleep03157-21tail21:14:260
316421070,3sleep03157-21tail21:14:260
217492940,2sleep1281ktimers/119:14:121
199032930,3chrt0-21swapper/220:34:242
199032930,3chrt0-21swapper/220:34:242
56562900,3sleep00-21swapper/019:54:350
56562900,3sleep00-21swapper/019:54:350
32132890,4sleep30-21swapper/322:39:313
32132890,4sleep30-21swapper/322:39:313
68812870,3sleep10-21swapper/119:59:261
68812870,3sleep10-21swapper/119:59:261
21914998776,5cyclictest0-21swapper/122:19:181
21914998776,5cyclictest0-21swapper/122:19:181
203882770,2sleep00-21swapper/023:24:340
105622760,8sleep0201rcuc/021:34:320
105622760,8sleep0201rcuc/021:34:320
299612730,2chrt0-21swapper/223:49:332
299612730,2chrt0-21swapper/223:49:332
148082690,3sleep0201rcuc/021:44:330
148082690,3sleep0201rcuc/021:44:330
148082690,3sleep0201rcuc/021:44:330
33382680,2sleep30-21swapper/319:49:273
33382680,2sleep30-21swapper/319:49:273
204162660,3sleep20-21swapper/221:59:302
204162660,3sleep20-21swapper/221:59:302
50592650,4chrt0-21swapper/319:54:263
50592650,4chrt0-21swapper/319:54:263
280142650,2sleep30-21swapper/322:19:293
123022630,3sleep112305-21gltestperf21:39:231
123022630,3sleep112305-21gltestperf21:39:231
290112610,2chrt0-21swapper/022:24:090
137852600,2sleep20-21swapper/223:09:172
137852600,2sleep20-21swapper/223:09:172
21914995750,3cyclictest0-21swapper/100:04:141
21914995750,3cyclictest0-21swapper/100:04:141
177922550,3sleep20-21swapper/221:54:202
177922550,3sleep20-21swapper/221:54:202
64562530,2chrt0-21swapper/319:59:203
64562530,2chrt0-21swapper/319:59:203
2191499532,39cyclictest25152-21sed23:39:181
5492500,2sleep30-21swapper/323:59:263
5492500,2sleep30-21swapper/323:59:263
2191499501,43cyclictest8159-21latency_hist22:54:171
21913994943,4cyclictest36350irq/47-eth021:24:170
2191399484,41cyclictest835-21taskset19:44:210
2191399484,41cyclictest835-21taskset19:44:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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