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2024-04-26 - 16:41

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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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 100 highest latencies:
System rackeslot6s.osadl.org (updated Fri Apr 26, 2024 00:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3949559910510,20cyclictest407957-21kworker/u8:4+ext4-rsv-conversion20:55:012
39495099757,8cyclictest0-21swapper/019:10:010
394950997423,41cyclictest395931-21latency_hist19:15:020
39495099717,25cyclictest25050irq/422-mmc119:50:020
39495099691,2cyclictest0-21swapper/021:50:010
394950996820,38cyclictest0-21swapper/020:30:310
39495099651,61cyclictest0-21swapper/023:00:010
394952996356,5cyclictest0-21swapper/119:20:001
39495099632,29cyclictest25050irq/422-mmc119:30:010
39495099631,54cyclictest441088-21grep23:35:300
394950996313,40cyclictest0-21swapper/020:45:330
394950996141,16cyclictest451451-21sendmail00:39:590
39495099612,15cyclictest447400-21apt-get00:15:130
394950996114,38cyclictest0-21swapper/000:25:280
39495099602,4cyclictest415660-21munin-run21:10:000
394950996020,32cyclictest0-21swapper/019:35:280
394950995930,22cyclictest21150irq/209-8000000.ethernet23:40:290
394950995920,32cyclictest131ktimers/019:40:150
394950995915,35cyclictest25050irq/422-mmc123:00:020
394950995829,25cyclictest0-21swapper/021:05:010
394950995829,25cyclictest0-21swapper/021:05:010
394950995828,23cyclictest21150irq/209-8000000.ethernet22:35:140
394950995822,28cyclictest0-21swapper/020:00:310
394950995817,36cyclictest0-21swapper/021:40:270
394950995817,36cyclictest0-21swapper/021:40:260
394955995739,11cyclictest311ktimers/223:20:152
394952995746,7cyclictest0-21swapper/121:15:331
394950995720,31cyclictest0-21swapper/020:25:280
394950995718,33cyclictest0-21swapper/022:45:170
394950995716,33cyclictest0-21swapper/000:30:300
394955995646,6cyclictest418291-21grep21:25:002
39495099563,12cyclictest447142-21head00:10:280
39495099561,7cyclictest405565-21sed20:10:020
39495099561,3cyclictest405873-21if_eth120:10:220
39495099555,10cyclictest0-21swapper/021:55:280
394950995534,8cyclictest0-21swapper/022:45:000
394950995521,25cyclictest0-21swapper/019:25:020
39495099551,23cyclictest479-1kworker/0:3H+kblockd22:05:010
394952995443,7cyclictest445521-21munin-plugin-st00:05:001
39495099549,37cyclictest0-21swapper/020:40:250
394950995438,11cyclictest0-21swapper/021:15:010
394950995424,23cyclictest21150irq/209-8000000.ethernet21:50:130
394950995422,30cyclictest444664-21cut00:00:000
39495099542,14cyclictest21150irq/209-8000000.ethernet19:50:140
39495099541,5cyclictest413578-21irqstats20:55:240
394952995344,5cyclictest427586-21munin-plugin-st22:20:001
39495099532,7cyclictest439390-21unixbench_multi23:25:280
39495099532,3cyclictest406763-21meminfo20:15:230
39495099532,12cyclictest419869-21tail21:30:280
394950995315,5cyclictest479-1kworker/0:3H+mmc_complete19:20:020
39495099531,4cyclictest0-21swapper/022:50:220
394950995313,36cyclictest0-21swapper/023:45:280
394955995229,15cyclictest311ktimers/200:15:112
39495099521,7cyclictest398771-21latency_hist19:30:010
39495099521,46cyclictest0-21swapper/000:00:240
39495099521,2cyclictest416792-21apt-get21:15:160
39495299511,44cyclictest0-21swapper/123:55:021
394950995128,17cyclictest0-21swapper/023:05:160
39495099512,12cyclictest425554-21memory22:05:260
394955995029,14cyclictest311ktimers/223:05:102
39495599502,23cyclictest32-21ksoftirqd/221:05:012
39495599502,23cyclictest32-21ksoftirqd/221:05:012
39495299504,13cyclictest0-21swapper/123:40:021
39495099507,10cyclictest0-21swapper/023:15:190
39495099507,10cyclictest0-21swapper/023:15:190
39495099505,9cyclictest440240-21unixbench_multi23:30:280
394950995031,16cyclictest410493-21latency_hist20:40:000
39495099501,43cyclictest0-21swapper/021:25:110
39495599495,18cyclictest30-21rcuc/222:10:002
394955994940,5cyclictest450604-21munin-plugin-st00:35:002
394955994940,5cyclictest394946-21cyclictest21:45:322
394952994935,8cyclictest0-21swapper/100:30:311
394952994934,10cyclictest0-21swapper/120:30:311
39495099497,9cyclictest0-21swapper/022:10:180
394950994927,16cyclictest21150irq/209-8000000.ethernet20:50:210
394950994913,5cyclictest0-21swapper/023:50:270
394950994913,5cyclictest0-21swapper/023:50:270
394955994826,13cyclictest311ktimers/222:30:132
39495599482,25cyclictest30-21rcuc/220:45:012
39495599481,9cyclictest0-21swapper/223:05:002
394955994810,20cyclictest30-21rcuc/219:35:022
394950994825,20cyclictest21150irq/209-8000000.ethernet20:20:140
394950994822,23cyclictest0-21swapper/022:30:320
394950994817,3cyclictest0-21swapper/023:20:230
394950994816,27cyclictest0-21swapper/019:55:290
394955994729,10cyclictest311ktimers/220:55:122
394952994734,9cyclictest0-21swapper/120:20:281
39495099472,13cyclictest428778-21grep22:25:190
39495099472,12cyclictest420773-21unixbench_singl21:35:320
394955994634,8cyclictest424204-21sendmail22:00:012
394952994635,7cyclictest410500-21sendmail20:40:011
394952994634,7cyclictest0-21swapper/122:00:311
394955994531,9cyclictest0-21swapper/222:50:012
394955994529,13cyclictest311ktimers/220:30:152
394955994527,12cyclictest311ktimers/220:35:102
394952994530,10cyclictest0-21swapper/122:05:301
394950994517,25cyclictest25450irq/423-mmc200:20:260
39495099451,5cyclictest0-21swapper/022:20:020
394950994514,4cyclictest0-21swapper/021:24:510
394955994431,9cyclictest311ktimers/223:55:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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