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2026-08-05 - 12:15

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 all highest latencies:
System rackeslot6s.osadl.org (updated Wed Aug 05, 2026 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13636299130122,6cyclictest0-21swapper/023:05:010
136362998884,2cyclictest0-21swapper/022:45:010
13636299716,37cyclictest145136-21apt-get20:00:010
136362996215,12cyclictest162204-21apt-get21:40:010
136362996215,12cyclictest162204-21apt-get21:40:010
13636499608,29cyclictest189504-21cmp00:20:001
13636299582,54cyclictest0-21swapper/022:45:120
136364995611,10cyclictest22-21rcuc/121:50:011
136362995441,11cyclictest166532-21munin-plugin-st22:05:010
13636699523,18cyclictest30-21rcuc/219:25:022
13636299525,24cyclictest15-21rcuc/020:50:010
136362995243,5cyclictest148611-21sendmail20:20:000
136362995233,16cyclictest167350irq/118-8000000.ethernet-tx020:10:250
136362995233,16cyclictest167350irq/118-8000000.ethernet-tx020:10:250
136366995141,6cyclictest161284-21grep21:30:292
136362995136,11cyclictest182700-21apt-key23:40:010
136364994938,6cyclictest138298-21run-parts19:20:001
13636299498,38cyclictest0-21swapper/019:25:220
13636299496,4cyclictest137188-21munin-node19:15:020
136362994918,27cyclictest0-21swapper/020:40:010
136362994918,27cyclictest0-21swapper/020:40:000
13636299491,4cyclictest141664-21kworker/u8:3+events_power_efficient20:30:010
136366994836,8cyclictest178345-21munin-plugin-st23:15:002
136362994844,3cyclictest0-21swapper/021:05:130
136362994840,4cyclictest164831-21munin-plugin-st21:55:000
136362994839,6cyclictest156305-21munin-plugin-st21:05:010
136362994830,14cyclictest167350irq/118-8000000.ethernet-tx022:35:230
136362994817,26cyclictest0-21swapper/023:40:280
136366994737,6cyclictest162329-21cmp21:40:012
136366994737,6cyclictest162329-21cmp21:40:012
136366994737,5cyclictest0-21swapper/222:00:002
136362994740,4cyclictest167350irq/118-8000000.ethernet-tx023:45:180
136362994736,6cyclictest20850irq/208-8000000.ethernet21:45:280
136364994637,5cyclictest0-21swapper/120:10:011
136364994635,7cyclictest169048-21sh22:20:001
136362994639,4cyclictest167350irq/118-8000000.ethernet-tx000:20:240
136366994532,8cyclictest168944-21grep22:15:282
136366994528,13cyclictest311ktimers/223:20:122
136364994528,10cyclictest0-21swapper/119:40:021
136362994539,4cyclictest0-21swapper/020:00:110
13636299451,4cyclictest0-21swapper/022:20:000
136366994434,7cyclictest177502-21munin-plugin-st23:10:002
136364994435,5cyclictest14-21rcu_preempt19:10:191
136364994433,7cyclictest231ktimers/119:55:131
136362994429,10cyclictest0-21swapper/000:10:300
136362994429,10cyclictest0-21swapper/000:10:300
136366994329,9cyclictest0-21swapper/223:40:292
136366994327,10cyclictest0-21swapper/222:40:292
136364994335,4cyclictest180886-21munin-plugin-st23:30:001
136364994332,3cyclictest0-21swapper/121:45:011
136364994328,7cyclictest0-21swapper/123:20:301
136364994327,9cyclictest0-21swapper/121:50:271
136364994326,6cyclictest0-21swapper/122:55:011
136364994324,11cyclictest0-21swapper/119:45:311
136364994324,11cyclictest0-21swapper/119:45:311
13636499431,2cyclictest0-21swapper/121:05:021
136362994335,5cyclictest161366-21munin-plugin-st21:35:000
136362994334,5cyclictest181384-21meminfo23:30:230
13636299433,11cyclictest0-21swapper/019:35:010
136362994324,10cyclictest0-21swapper/019:55:010
13636299432,10cyclictest154206-21phc2sys20:50:280
13636299431,39cyclictest149408-21head20:20:270
13636299431,39cyclictest149408-21head20:20:270
136362994310,27cyclictest20850irq/208-8000000.ethernet22:00:010
136366994229,8cyclictest0-21swapper/219:45:312
136366994229,8cyclictest0-21swapper/219:45:302
136366994227,8cyclictest0-21swapper/221:15:302
136366994222,15cyclictest311ktimers/222:05:132
136364994229,8cyclictest0-21swapper/122:20:231
136364994228,6cyclictest0-21swapper/122:00:311
136364994225,10cyclictest170631-21grep22:25:291
13636299422,4cyclictest157646-21meminfo21:10:260
13636299422,4cyclictest155422-21users20:55:320
136362994224,16cyclictest0-21swapper/021:20:160
13636299421,6cyclictest0-21swapper/022:55:010
13636299421,4cyclictest0-21swapper/021:20:000
13636299421,38cyclictest0-21swapper/020:05:210
136366994129,7cyclictest157054-21grep21:05:302
136366994127,9cyclictest0-21swapper/200:30:312
136366994122,14cyclictest311ktimers/219:35:152
136364994132,5cyclictest0-21swapper/122:05:301
136364994131,7cyclictest173215-21grep22:40:291
136364994131,6cyclictest231ktimers/123:55:271
136364994130,8cyclictest231ktimers/120:00:291
136364994130,7cyclictest148552-21grep20:15:291
136364994129,6cyclictest153589-21grep20:45:271
136364994128,9cyclictest0-21swapper/122:35:211
136364994128,8cyclictest0-21swapper/119:50:291
136364994127,7cyclictest0-21swapper/122:30:221
136364994126,9cyclictest0-21swapper/119:20:311
13636299416,32cyclictest0-21swapper/020:45:000
136362994133,4cyclictest167350irq/118-8000000.ethernet-tx023:55:300
136362994132,5cyclictest0-21swapper/023:25:270
136362994127,9cyclictest138186-21tail19:15:290
13636299411,38cyclictest0-21swapper/022:25:290
13636299411,37cyclictest177122-21irqstats23:05:250
136366994031,6cyclictest171484-21grep22:30:292
136366994030,7cyclictest0-21swapper/200:20:292
136366994028,8cyclictest0-21swapper/220:55:012
136366994028,5cyclictest189426-21apt-get00:20:002
136366994010,16cyclictest171785-21/usr/sbin/munin22:35:202
136364994030,6cyclictest185075-21grep23:50:301
136364994029,7cyclictest0-21swapper/121:05:291
136364994027,5cyclictest0-21swapper/100:20:291
136364994025,8cyclictest0-21swapper/120:40:311
136364994022,10cyclictest0-21swapper/123:00:301
13636299401,37cyclictest0-21swapper/022:10:220
13636299401,37cyclictest0-21swapper/022:10:220
136366993928,6cyclictest0-21swapper/219:15:022
136366993927,8cyclictest0-21swapper/223:30:272
136366993927,8cyclictest0-21swapper/221:25:262
136366993924,9cyclictest174123-21munin-plugin-st22:50:002
136366993923,8cyclictest0-21swapper/222:10:292
136366993923,8cyclictest0-21swapper/222:10:292
136366993919,18cyclictest880-21avahi-daemon00:00:022
136364993929,7cyclictest231ktimers/122:55:131
136364993928,6cyclictest0-21swapper/120:50:281
136364993928,5cyclictest0-21swapper/120:15:011
136364993928,5cyclictest0-21swapper/120:15:011
136364993924,10cyclictest0-21swapper/121:35:001
136362993934,4cyclictest0-21swapper/021:40:230
136362993923,14cyclictest0-21swapper/000:27:220
136362993916,12cyclictest192248-21/usr/sbin/munin00:35:230
13636299391,36cyclictest0-21swapper/023:20:300
136366993829,6cyclictest184295-21grep23:45:312
136366993828,7cyclictest0-21swapper/221:50:272
136366993825,9cyclictest0-21swapper/220:45:272
136366993824,9cyclictest0-21swapper/220:00:012
136366993816,14cyclictest311ktimers/200:00:142
13636699381,19cyclictest0-21swapper/220:10:012
136364993830,4cyclictest153662-21kworker/u8:0-events_power_efficient21:10:231
136364993826,7cyclictest0-21swapper/121:15:281
136364993825,9cyclictest0-21swapper/100:35:321
13636499381,30cyclictest182869-21/usr/sbin/munin23:40:191
136362993832,3cyclictest169907-21munin-run22:25:000
136362993831,4cyclictest167350irq/118-8000000.ethernet-tx000:15:200
136362993831,4cyclictest0-21swapper/000:30:150
13636299381,35cyclictest187521-21sed00:05:300
13636299381,35cyclictest0-21swapper/019:20:310
136366993729,4cyclictest0-21swapper/220:55:052
136366993727,5cyclictest169839-21grep22:20:322
136366993727,4cyclictest0-21swapper/220:10:302
136366993727,4cyclictest0-21swapper/220:10:302
136366993726,7cyclictest0-21swapper/219:55:012
136366993726,7cyclictest0-21swapper/200:25:302
136366993725,8cyclictest0-21swapper/200:35:352
136366993723,9cyclictest0-21swapper/220:15:272
136364993728,5cyclictest0-21swapper/123:05:311
136364993727,5cyclictest0-21swapper/123:15:301
136364993723,9cyclictest0-21swapper/121:35:301
136364993723,9cyclictest0-21swapper/121:35:301
136364993721,7cyclictest0-21swapper/121:55:291
136364993719,9cyclictest22-21rcuc/121:20:211
136362993729,6cyclictest159672-21kworker/u8:4+events_power_efficient22:55:160
13636299371,6cyclictest184978-21cut23:50:290
13636299371,3cyclictest0-21swapper/019:45:010
13636299371,3cyclictest0-21swapper/019:45:010
13636299371,34cyclictest0-21swapper/022:32:100
13636299371,34cyclictest0-21swapper/019:35:170
136366993625,8cyclictest0-21swapper/219:15:302
136364993627,4cyclictest14-21rcu_preempt19:30:221
136364993624,8cyclictest151106-21grep20:30:301
136364993624,8cyclictest0-21swapper/100:00:301
136364993623,7cyclictest231ktimers/123:35:261
136364993623,7cyclictest231ktimers/120:55:051
136364993613,17cyclictest2-21kthreadd00:26:201
136362993629,4cyclictest20850irq/208-8000000.ethernet19:40:270
136362993623,8cyclictest0-21swapper/020:30:290
136366993527,5cyclictest0-21swapper/220:30:292
136366993525,5cyclictest0-21swapper/219:40:312
136366993524,8cyclictest0-21swapper/223:15:302
136366993522,9cyclictest0-21swapper/220:20:242
136366993522,9cyclictest0-21swapper/220:20:232
136366993521,9cyclictest0-21swapper/221:00:302
13636699351,28cyclictest0-21swapper/219:30:202
136364993530,3cyclictest51-21kcompactd020:25:211
136364993528,5cyclictest22-21rcuc/120:40:011
136364993528,5cyclictest22-21rcuc/120:40:011
136366993425,6cyclictest0-21swapper/221:10:302
136366993425,5cyclictest0-21swapper/200:05:222
136366993424,4cyclictest0-21swapper/223:25:242
136366993423,6cyclictest0-21swapper/220:00:302
136366993422,8cyclictest0-21swapper/219:25:292
136366993420,8cyclictest0-21swapper/223:00:012
13636699341,27cyclictest0-21swapper/222:50:252
136364993428,4cyclictest14-21rcu_preempt21:25:261
136364993424,7cyclictest231ktimers/100:10:281
136364993424,7cyclictest231ktimers/100:10:281
136364993424,7cyclictest231ktimers/100:05:321
136364993423,7cyclictest0-21swapper/123:30:201
13636499341,27cyclictest141889-21/usr/sbin/munin19:40:291
13636299341,6cyclictest159890-21apt-get21:25:090
13636299341,31cyclictest0-21swapper/000:02:520
136366993326,4cyclictest0-21swapper/223:35:322
136366993323,7cyclictest0-21swapper/221:20:302
136366993322,7cyclictest0-21swapper/223:00:302
136366993321,8cyclictest0-21swapper/222:00:312
136366993320,8cyclictest0-21swapper/220:35:212
136366993320,8cyclictest0-21swapper/220:35:212
136364993323,7cyclictest231ktimers/123:10:121
13636499332,27cyclictest0-21swapper/122:46:191
136362993326,4cyclictest0-21swapper/023:15:130
136362993323,6cyclictest0-21swapper/023:10:280
13636299331,4cyclictest0-21swapper/019:10:010
13636299331,30cyclictest0-21swapper/022:06:170
136366993221,7cyclictest0-21swapper/220:40:312
136364993225,5cyclictest231ktimers/100:30:301
136364993222,7cyclictest231ktimers/123:45:171
136364993222,6cyclictest0-21swapper/119:25:301
136366993123,6cyclictest0-21swapper/222:25:212
136364993126,3cyclictest14-21rcu_preempt22:10:281
136364993126,3cyclictest14-21rcu_preempt22:10:281
13636699302,16cyclictest32-21ksoftirqd/223:50:142
136366993019,6cyclictest0-21swapper/221:45:262
136364993024,4cyclictest231ktimers/120:20:091
136364993024,4cyclictest231ktimers/120:20:091
136366992916,9cyclictest0-21swapper/220:25:282
136366992814,10cyclictest311ktimers/221:40:172
136366992710,8cyclictest188707-21latency_hist00:15:012
136366992710,8cyclictest188707-21latency_hist00:15:012
13636499263,15cyclictest136490-21cat19:10:001
136366992415,5cyclictest136508-21cat19:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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