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2026-05-05 - 16:23

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 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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot6s.osadl.org (updated Tue May 05, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32283299911710,86cyclictest3255084-21apt-get09:50:010
3228329991121,2cyclictest0-21swapper/008:45:010
3228329999010,36cyclictest3255084-21apt-get09:50:020
3228329997246,22cyclictest1283-21cron11:29:590
3228329997235,34cyclictest20650irq/252-8000000.ethernet10:30:250
3228329997159,6cyclictest0-21swapper/009:20:120
3228329997135,32cyclictest20650irq/252-8000000.ethernet07:20:230
322832999701,2cyclictest0-21swapper/010:20:010
3228331996912,17cyclictest3242382-21/usr/sbin/munin08:30:191
322832999691,61cyclictest3235515-21grep07:50:010
322832999689,12cyclictest0-21swapper/009:00:010
3228329996831,34cyclictest3233646-21munin-plugin-st07:40:000
3228329996736,28cyclictest20650irq/252-8000000.ethernet12:35:290
3228329996736,26cyclictest20650irq/252-8000000.ethernet12:30:160
3228329996735,28cyclictest20650irq/252-8000000.ethernet07:30:300
3228329996735,28cyclictest20650irq/252-8000000.ethernet07:30:300
3228329996639,23cyclictest167350irq/118-8000000.ethernet-tx007:55:260
3228329996636,27cyclictest20650irq/252-8000000.ethernet09:10:190
3228329996634,29cyclictest20650irq/252-8000000.ethernet11:50:270
3228329996634,28cyclictest20650irq/252-8000000.ethernet07:40:170
3228329996634,28cyclictest20650irq/252-8000000.ethernet07:40:170
3228329996536,26cyclictest20650irq/252-8000000.ethernet12:15:230
3228329996535,27cyclictest20650irq/252-8000000.ethernet08:25:250
3228329996535,27cyclictest20650irq/252-8000000.ethernet08:25:250
322832999651,3cyclictest3243731-21/usr/sbin/munin08:35:250
3228331996437,6cyclictest3233646-21munin-plugin-st07:39:591
3228329996437,23cyclictest20650irq/252-8000000.ethernet12:25:170
3228329996435,24cyclictest20650irq/252-8000000.ethernet08:50:260
3228329996433,27cyclictest20650irq/252-8000000.ethernet11:30:250
322832999642,8cyclictest20850irq/208-8000000.ethernet10:05:120
3228329996425,36cyclictest0-21swapper/012:10:260
322832999641,5cyclictest3267194-21grep11:10:200
322832999641,2cyclictest0-21swapper/011:00:010
3228329996338,21cyclictest20650irq/252-8000000.ethernet10:45:150
3228329996237,21cyclictest20650irq/252-8000000.ethernet08:05:250
3228329996234,24cyclictest20650irq/252-8000000.ethernet07:25:310
3228329996225,35cyclictest20850irq/208-8000000.ethernet11:35:200
3228331996125,5cyclictest0-21swapper/111:50:021
3228331996125,5cyclictest0-21swapper/111:50:011
3228329996143,14cyclictest20650irq/252-8000000.ethernet09:35:220
3228329996133,25cyclictest20650irq/252-8000000.ethernet11:55:260
3228329996132,26cyclictest0-21swapper/011:20:200
3228329996035,21cyclictest20650irq/252-8000000.ethernet12:20:220
3228329996035,21cyclictest20650irq/252-8000000.ethernet12:00:200
322832999602,4cyclictest3230370-21latency_hist07:20:010
3228329995949,7cyclictest0-21swapper/008:10:150
3228329995936,20cyclictest20650irq/252-8000000.ethernet10:40:180
3228329995935,20cyclictest20650irq/252-8000000.ethernet10:50:120
3228329995934,21cyclictest20650irq/252-8000000.ethernet08:15:140
3228329995836,17cyclictest20650irq/252-8000000.ethernet11:05:010
3228329995832,23cyclictest0-21swapper/011:45:290
3228329995832,23cyclictest0-21swapper/011:45:290
322832999582,5cyclictest3246936-21cut08:55:270
3228329995825,29cyclictest20850irq/208-8000000.ethernet07:50:190
3228329995823,31cyclictest0-21swapper/009:30:260
3228329995725,29cyclictest0-21swapper/010:35:250
322832999572,3cyclictest3228576-21/usr/sbin/munin07:10:200
3228329995718,5cyclictest0-21swapper/011:05:130
3228329995718,5cyclictest0-21swapper/011:05:130
3228329995631,21cyclictest3249090-21date09:10:010
3228329995631,17cyclictest20650irq/252-8000000.ethernet08:20:120
3228329995535,16cyclictest0-21swapper/009:55:210
3228335995432,17cyclictest311ktimers/210:35:112
3228329995437,13cyclictest20650irq/252-8000000.ethernet08:00:240
3228329995435,15cyclictest20650irq/252-8000000.ethernet08:30:290
3228329995419,30cyclictest0-21swapper/010:25:210
3228329995419,30cyclictest0-21swapper/010:25:210
3228329995235,13cyclictest3258897-21kernelversion10:20:220
3228329995130,17cyclictest3272166-21awk11:40:160
3228329995117,31cyclictest20850irq/208-8000000.ethernet12:05:280
3228335995038,5cyclictest311ktimers/207:35:012
3228335995038,5cyclictest311ktimers/207:35:012
3228335995032,12cyclictest311ktimers/208:00:112
322832999506,7cyclictest0-21swapper/011:15:270
3228331994934,11cyclictest1653-21lldpd10:20:111
3228329994932,14cyclictest20650irq/252-8000000.ethernet09:25:170
3228329994928,17cyclictest3245536-21users08:45:290
3228329994918,4cyclictest0-21swapper/010:11:060
3228331994835,8cyclictest0-21swapper/107:45:281
3228335994731,10cyclictest311ktimers/209:05:132
3228335994728,13cyclictest311ktimers/209:20:162
322832999471,4cyclictest0-21swapper/009:15:140
3228335994635,6cyclictest0-21swapper/211:00:002
3228335994511,14cyclictest3281476-21/usr/sbin/munin12:35:192
3228331994538,4cyclictest3260926-21munin-plugin-st10:34:591
3228335994434,7cyclictest30-21rcuc/212:05:022
3228335994431,9cyclictest311ktimers/211:10:102
3228335994429,9cyclictest0-21swapper/210:45:282
322833599442,17cyclictest30-21rcuc/211:55:022
3228331994432,7cyclictest0-21swapper/107:25:311
3228331994431,9cyclictest0-21swapper/108:50:281
3228335994330,9cyclictest30-21rcuc/208:10:002
3228335994329,10cyclictest311ktimers/207:50:142
3228335994327,11cyclictest311ktimers/209:10:122
3228335994326,12cyclictest311ktimers/209:35:152
3228331994333,5cyclictest0-21swapper/111:35:011
322832999439,8cyclictest0-21swapper/009:45:010
3228335994234,5cyclictest30-21rcuc/210:10:012
3228331994233,5cyclictest0-21swapper/111:35:261
3228331994226,11cyclictest0-21swapper/107:15:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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