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2024-11-22 - 04:37

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, slot #7

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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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 50 highest latencies:
System rackcslot7s.osadl.org (updated Fri Nov 22, 2024 00:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
314535921110,9sleep11753-21gnome-shell23:10:281
162399910,8rtkit-daemon1622-21rtkit-daemon00:04:143
305977428771,10sleep20-21swapper/219:09:032
305964328566,14sleep30-21swapper/319:07:243
162399820,9rtkit-daemon26-21ksoftirqd/121:49:461
30768892800,6sleep00-21swapper/019:55:130
305965027660,9sleep00-21swapper/019:07:300
162399710,5rtkit-daemon2197014-21PK-Backend21:21:193
162399690,9rtkit-daemon1622-21rtkit-daemon22:19:402
162399680,9rtkit-daemon1622-21rtkit-daemon22:09:282
305974826638,22sleep10-21swapper/119:08:421
162399660,8rtkit-daemon1622-21rtkit-daemon21:27:552
162399660,4rtkit-daemon2197014-21PK-Backend22:26:373
3059993996422,15cyclictest2179-21gvfsd-metadata23:15:023
30928232610,8chrt1753-21gnome-shell20:40:221
162399610,9rtkit-daemon1622-21rtkit-daemon19:18:151
31029712600,5sleep0161rcuc/021:10:190
3059993996016,15cyclictest3116081-21cat21:45:293
162399600,9rtkit-daemon1622-21rtkit-daemon23:21:242
3059993995918,13cyclictest860997-21snmpd20:05:573
162399590,8rtkit-daemon1622-21rtkit-daemon21:24:212
3059993995820,12cyclictest3110135-21cat21:30:193
3059993995820,12cyclictest3110135-21cat21:30:183
3059993995818,14cyclictest3242255-21gdbus20:30:013
3059993995818,14cyclictest3242255-21gdbus20:30:013
3059993995630,7cyclictest1753-21gnome-shell20:48:393
3059993995622,8cyclictest1753-21gnome-shell21:11:143
3059993995618,11cyclictest3162961-21cut00:05:153
305999399561,14cyclictest3086115-21python320:20:293
305999399552,9cyclictest1753-21gnome-shell21:02:143
305999399552,25cyclictest1753-21gnome-shell20:11:213
3059993995519,11cyclictest3076303-21sh19:55:003
3059993995518,12cyclictest3124392-21ntpq22:10:263
305999399542,25cyclictest1753-21gnome-shell19:25:303
305999399542,25cyclictest1753-21gnome-shell19:25:303
305999399542,25cyclictest1753-21gnome-shell00:21:463
3059993995421,8cyclictest1753-21gnome-shell23:19:453
305999399532,25cyclictest1753-21gnome-shell00:26:103
305999399532,25cyclictest1753-21gnome-shell00:17:453
3059993995319,9cyclictest3070335-21cut19:35:223
3059993995318,11cyclictest42-21ksoftirqd/322:49:173
305999399531,26cyclictest3133208-21python322:35:293
305999399531,26cyclictest3133208-21python322:35:283
162399530,8rtkit-daemon1622-21rtkit-daemon22:00:352
305999399522,9cyclictest1753-21gnome-shell21:37:213
305999399522,8cyclictest3063086-21hddtemp_smartct19:15:203
305999399522,8cyclictest1753-21gnome-shell22:00:103
305999399522,8cyclictest1753-21gnome-shell20:16:493
305999399522,25cyclictest1753-21gnome-shell20:34:133
305998299522,46cyclictest1622-21rtkit-daemon19:42:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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