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2024-07-27 - 14:20

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #6

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.

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 50 highest latencies:
System rackeslot6s.osadl.org (updated Sat Jul 27, 2024 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2201051991336,15cyclictest2247861-21kworker/u8:2+ext4-rsv-conversion23:50:012
220104699961,90cyclictest0-21swapper/022:30:010
2201046998177,2cyclictest0-21swapper/019:55:000
2201048996928,32cyclictest0-21swapper/122:55:301
2201048996820,40cyclictest0-21swapper/121:00:291
2201048996433,26cyclictest0-21swapper/123:30:311
2201048996235,22cyclictest0-21swapper/100:30:241
2201048996217,39cyclictest1768-21snmpd22:06:171
220104699625,13cyclictest21450irq/209-8000000.ethernet23:05:020
2201046996155,3cyclictest0-21swapper/023:35:090
2201048995911,39cyclictest0-21swapper/100:10:301
2201051995831,5cyclictest0-21swapper/222:55:012
2201046995835,17cyclictest25550irq/422-mmc122:15:010
220105199573,17cyclictest0-21swapper/223:35:022
220104899576,42cyclictest0-21swapper/120:00:211
2201048995715,32cyclictest0-21swapper/119:35:271
220104899571,2cyclictest0-21swapper/121:05:101
2201048995618,29cyclictest0-21swapper/120:30:301
220104899553,45cyclictest2224986-21grep21:25:391
2201048995532,18cyclictest0-21swapper/100:25:161
2201048995525,25cyclictest0-21swapper/122:50:261
2201048995520,28cyclictest0-21swapper/120:40:301
2201048995511,35cyclictest0-21swapper/122:45:291
2201048995510,37cyclictest0-21swapper/122:35:011
2201046995547,4cyclictest0-21swapper/023:45:100
220105199546,27cyclictest32-21ksoftirqd/221:35:012
2201051995410,9cyclictest0-21swapper/221:25:022
220104899547,38cyclictest0-21swapper/121:55:211
2201048995442,8cyclictest2216627-21apt20:40:011
220104899543,10cyclictest2253986-21latency_hist00:20:011
220105199533,10cyclictest2214861-21apt-get20:30:012
220104899533,41cyclictest0-21swapper/121:50:011
2201048995332,17cyclictest2243593-21grep23:15:291
2201048995320,26cyclictest0-21swapper/122:25:011
2201048995314,30cyclictest0-21swapper/121:40:151
220104899531,14cyclictest2231989-21apt-get22:10:131
220104899526,5cyclictest2225585-21cut21:30:431
220104899526,4cyclictest0-21swapper/119:45:261
220104899523,8cyclictest2208903-21grep19:50:281
220104899523,38cyclictest2224182-21grep21:20:261
2201048995232,16cyclictest0-21swapper/119:15:011
2201048995232,16cyclictest0-21swapper/119:15:011
220104899522,9cyclictest2213843-21/usr/sbin/munin20:20:281
220104899521,9cyclictest2222291-21/usr/sbin/munin21:10:261
2201048995215,30cyclictest0-21swapper/100:00:311
2201048995215,30cyclictest0-21swapper/100:00:301
2201048995212,31cyclictest0-21swapper/119:40:291
220104899521,11cyclictest2219162-21wc20:55:001
2201048995210,33cyclictest2242343-21tune2fs23:10:191
2201051995145,4cyclictest0-21swapper/200:30:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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