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2025-11-23 - 06:19

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 792 highest latencies:
System rackeslot6s.osadl.org (updated Sun Nov 23, 2025 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2844553999976,15cyclictest131ktimers/000:15:010
2844556997022,41cyclictest0-21swapper/119:55:001
284455699701,2cyclictest0-21swapper/123:25:011
2844556996935,28cyclictest2898541-21cron00:25:011
284455699681,2cyclictest0-21swapper/120:10:001
284455899671,23cyclictest0-21swapper/200:30:012
2844556996727,34cyclictest0-21swapper/120:50:021
284455699671,2cyclictest0-21swapper/120:15:001
2844556996631,28cyclictest0-21swapper/120:00:311
2844556996530,29cyclictest0-21swapper/122:30:301
2844556996526,34cyclictest2868634-21munin-plugin-st21:29:591
2844556996324,33cyclictest0-21swapper/123:05:281
2844556996224,27cyclictest0-21swapper/119:20:291
2844556996125,27cyclictest0-21swapper/121:10:161
2844556996119,4cyclictest0-21swapper/121:45:311
2844556996119,4cyclictest0-21swapper/121:45:311
284455699604,16cyclictest2864772-21tune2fs21:05:221
2844556996019,8cyclictest0-21swapper/120:39:591
2844556996019,6cyclictest0-21swapper/123:55:301
2844556996016,6cyclictest0-21swapper/123:00:231
2844556996016,6cyclictest0-21swapper/123:00:231
284455699601,27cyclictest0-21swapper/100:30:301
284455699601,17cyclictest2901026-21sed00:35:301
2844556995920,6cyclictest0-21swapper/121:35:321
2844556995824,27cyclictest0-21swapper/100:15:011
2844556995822,29cyclictest0-21swapper/120:55:271
2844556995747,6cyclictest2858410-21munin-plugin-st20:30:001
284455699572,4cyclictest2871145-21users21:40:311
284455399579,42cyclictest131ktimers/021:15:280
284455399579,42cyclictest131ktimers/021:15:280
284455399571,50cyclictest0-21swapper/023:00:110
284455399571,50cyclictest0-21swapper/023:00:110
2844558995628,6cyclictest0-21swapper/200:05:012
2844556995629,22cyclictest0-21swapper/121:54:591
2844556995628,24cyclictest0-21swapper/119:10:241
2844556995625,26cyclictest0-21swapper/100:25:281
2844556995619,5cyclictest0-21swapper/100:15:241
2844556995618,4cyclictest0-21swapper/122:25:281
2844556995524,21cyclictest0-21swapper/119:15:031
2844556995523,27cyclictest0-21swapper/122:40:291
2844556995523,26cyclictest0-21swapper/100:00:241
2844556995520,28cyclictest0-21swapper/123:35:271
2844556995418,3cyclictest0-21swapper/120:15:231
2844553995440,10cyclictest0-21swapper/019:15:020
284455399541,45cyclictest12-21ksoftirqd/019:30:010
2844558995347,4cyclictest311ktimers/219:40:022
2844556995318,7cyclictest0-21swapper/120:20:301
2844556995316,10cyclictest0-21swapper/119:45:291
284455699531,27cyclictest0-21swapper/100:05:251
284455399532,43cyclictest0-21swapper/019:45:120
284455399531,46cyclictest15-21rcuc/021:25:000
2844556995215,8cyclictest0-21swapper/123:15:201
284455399529,37cyclictest15-21rcuc/019:55:020
2844556995130,15cyclictest0-21swapper/119:40:301
284455399511,43cyclictest15-21rcuc/021:00:230
284455899505,31cyclictest30-21rcuc/223:25:202
2844558995036,9cyclictest311ktimers/220:50:132
284455699502,4cyclictest2882521-21/usr/sbin/munin22:50:291
2844556995022,21cyclictest0-21swapper/123:10:181
2844556995021,24cyclictest168350irq/126-8000000.ethernet-tx120:30:181
2844558994927,13cyclictest311ktimers/221:20:162
284455699496,12cyclictest2849071-21sed19:30:301
284455399498,36cyclictest0-21swapper/021:45:240
284455399498,36cyclictest0-21swapper/021:45:240
284455399491,46cyclictest0-21swapper/020:30:160
2844558994825,13cyclictest32-21ksoftirqd/221:45:012
2844556994821,4cyclictest0-21swapper/122:20:141
2844556994816,8cyclictest0-21swapper/121:25:001
284455399487,35cyclictest0-21swapper/022:20:220
2844553994836,8cyclictest0-21swapper/021:25:320
2844558994739,5cyclictest2846579-21sendmail19:20:002
2844558994735,8cyclictest2900969-21grep00:35:282
2844558994730,13cyclictest2884549-21phc2sys23:00:262
2844558994730,13cyclictest2884549-21phc2sys23:00:262
2844558994728,13cyclictest0-21swapper/223:55:322
284455699471,24cyclictest0-21swapper/123:45:121
284455399477,38cyclictest131ktimers/020:50:230
2844553994739,5cyclictest0-21swapper/019:20:000
284455399473,42cyclictest12-21ksoftirqd/022:40:150
284455399473,38cyclictest0-21swapper/023:05:100
284455399473,37cyclictest0-21swapper/020:30:010
284455399472,38cyclictest15-21rcuc/023:25:200
284455399471,41cyclictest12-21ksoftirqd/019:40:190
284455399471,20cyclictest0-21swapper/020:40:000
2844558994638,5cyclictest1668-21snmpd19:25:022
2844558994638,4cyclictest2884002-21munin-plugin-st23:00:002
2844558994632,9cyclictest0-21swapper/222:10:292
2844558994622,17cyclictest311ktimers/222:00:132
2844558994622,17cyclictest311ktimers/222:00:122
2844558994611,7cyclictest0-21swapper/219:15:022
2844556994615,7cyclictest0-21swapper/122:50:011
2844556994615,7cyclictest0-21swapper/122:50:011
284455399465,39cyclictest15-21rcuc/023:40:280
284455399464,19cyclictest15-21rcuc/021:35:010
284455399464,19cyclictest15-21rcuc/021:35:010
2844553994628,14cyclictest0-21swapper/020:00:290
284455399461,42cyclictest15-21rcuc/019:50:260
284455399461,41cyclictest2889648-21proc_pri23:30:260
284455399461,40cyclictest0-21swapper/000:05:190
284455399461,39cyclictest12-21ksoftirqd/022:00:170
284455399461,39cyclictest12-21ksoftirqd/022:00:170
284455399461,39cyclictest0-21swapper/022:35:020
284455399460,44cyclictest12-21ksoftirqd/000:40:000
284455399451,40cyclictest0-21swapper/000:20:250
284455399451,38cyclictest2875385-21apt-get22:10:040
284455399451,38cyclictest0-21swapper/022:00:010
2844553994513,30cyclictest0-21swapper/022:15:250
2844558994436,4cyclictest2849113-21munin-plugin-st19:35:012
2844553994434,7cyclictest131ktimers/023:35:280
284455399443,35cyclictest131ktimers/000:00:180
2844553994430,8cyclictest0-21swapper/022:55:260
2844553994429,10cyclictest0-21swapper/021:40:290
284455399441,38cyclictest2885960-21dropbear23:10:170
284455399441,37cyclictest0-21swapper/020:45:240
2844556994331,8cyclictest2864419-21munin-plugin-st21:05:011
284455399438,33cyclictest131ktimers/022:35:190
2844553994337,4cyclictest0-21swapper/000:30:130
2844553994332,7cyclictest0-21swapper/023:20:290
284455399431,40cyclictest12-21ksoftirqd/020:55:230
284455399431,37cyclictest15-21rcuc/021:55:010
2844558994228,9cyclictest0-21swapper/221:15:292
2844558994228,9cyclictest0-21swapper/221:15:292
2844558994214,23cyclictest0-21swapper/219:25:022
2844556994212,17cyclictest2873051-21/usr/sbin/munin21:55:201
284455399427,29cyclictest15-21rcuc/022:10:000
284455399424,36cyclictest131ktimers/019:25:000
284455399423,36cyclictest15-21rcuc/023:45:300
284455399421,39cyclictest0-21swapper/000:25:270
284455399420,40cyclictest131ktimers/000:15:220
284455399420,36cyclictest2850147-21cat19:40:010
2844558994127,9cyclictest0-21swapper/223:40:282
2844558994127,8cyclictest0-21swapper/221:35:012
2844558994127,8cyclictest0-21swapper/221:35:012
2844558994127,10cyclictest311ktimers/220:20:132
2844553994136,3cyclictest0-21swapper/020:15:150
284455399411,4cyclictest15-21rcuc/020:20:190
284455399411,3cyclictest2878516-21meminfo22:25:240
284455399411,38cyclictest0-21swapper/020:10:260
284455399411,37cyclictest15-21rcuc/000:00:010
284455399411,34cyclictest0-21swapper/021:10:130
2844558994029,8cyclictest0-21swapper/221:25:332
2844558994029,7cyclictest0-21swapper/223:15:292
2844558994028,8cyclictest0-21swapper/200:15:292
2844558994027,9cyclictest0-21swapper/221:45:302
2844558994027,9cyclictest0-21swapper/221:45:302
2844558994027,8cyclictest0-21swapper/200:10:292
2844558994025,9cyclictest0-21swapper/220:50:022
2844556994026,9cyclictest0-21swapper/122:00:201
2844556994026,9cyclictest0-21swapper/122:00:201
284455399403,35cyclictest0-21swapper/023:20:000
284455399401,33cyclictest0-21swapper/023:50:120
2844553994012,26cyclictest0-21swapper/021:05:180
2844558993932,4cyclictest311ktimers/221:10:012
2844558993927,8cyclictest0-21swapper/221:35:322
2844556993929,5cyclictest0-21swapper/122:10:281
284455399392,35cyclictest0-21swapper/020:05:220
284455399391,32cyclictest0-21swapper/019:30:140
2844558993825,9cyclictest0-21swapper/223:40:002
2844558993824,9cyclictest0-21swapper/222:30:272
2844558993821,9cyclictest0-21swapper/220:35:312
2844556993827,7cyclictest0-21swapper/120:50:271
2844556993826,6cyclictest0-21swapper/122:35:261
284455699381,2cyclictest0-21swapper/123:00:001
284455399383,33cyclictest0-21swapper/020:40:220
284455399382,34cyclictest0-21swapper/022:50:230
284455399381,3cyclictest2881742-21df22:45:170
284455399381,3cyclictest2881742-21df22:45:170
284455399381,3cyclictest2870287-21users21:35:320
2844558993728,6cyclictest0-21swapper/221:55:292
284455699371,2cyclictest0-21swapper/123:30:021
284455899364,8cyclictest2-21kthreadd22:17:212
2844558993626,6cyclictest0-21swapper/223:20:262
2844558993625,7cyclictest0-21swapper/219:35:352
2844558993624,7cyclictest0-21swapper/220:00:302
2844558993619,11cyclictest0-21swapper/220:15:292
2844556993622,11cyclictest0-21swapper/123:54:591
2844558993528,5cyclictest30-21rcuc/223:30:182
2844558993526,5cyclictest2885633-21grep23:05:282
2844558993526,5cyclictest0-21swapper/222:20:292
2844558993523,7cyclictest0-21swapper/222:40:282
2844558993521,9cyclictest30-21rcuc/220:05:142
2844558993514,12cyclictest311ktimers/222:05:112
2844558993425,4cyclictest30-21rcuc/220:25:322
2844558993422,8cyclictest0-21swapper/223:10:292
2844558993421,9cyclictest0-21swapper/222:50:292
2844558993421,9cyclictest0-21swapper/221:10:282
284455699341,2cyclictest0-21swapper/123:35:011
2844558993324,5cyclictest0-21swapper/219:50:012
2844558993321,8cyclictest0-21swapper/220:40:302
2844558993319,9cyclictest0-21swapper/222:25:182
284455899331,3cyclictest0-21swapper/219:55:002
2844553993316,10cyclictest0-21swapper/019:10:020
2844558993224,4cyclictest0-21swapper/219:55:302
2844558993219,9cyclictest0-21swapper/222:35:302
2844558993217,9cyclictest30-21rcuc/220:10:132
2844556993223,6cyclictest231ktimers/119:55:141
2844556993213,11cyclictest0-21swapper/122:05:101
2844558993120,7cyclictest0-21swapper/220:30:292
2844558993119,8cyclictest0-21swapper/223:55:012
2844558993118,9cyclictest0-21swapper/200:30:302
2844558993116,10cyclictest0-21swapper/200:20:242
2844558993113,11cyclictest30-21rcuc/223:45:152
2844558993020,8cyclictest311ktimers/221:50:122
2844558993018,7cyclictest0-21swapper/221:00:002
2844556993024,4cyclictest0-21swapper/119:25:271
2844556993020,6cyclictest0-21swapper/119:35:341
284455699301,27cyclictest0-21swapper/121:15:281
284455699301,27cyclictest0-21swapper/121:15:281
2844556993012,11cyclictest2890975-21/usr/sbin/munin23:40:191
2844558992919,7cyclictest14-21rcu_preempt22:50:002
2844558992919,7cyclictest14-21rcu_preempt22:50:002
2844556992923,4cyclictest0-21swapper/120:40:231
2844558992820,5cyclictest2863777-21/usr/sbin/munin21:00:282
284455699281,25cyclictest0-21swapper/122:15:201
2844558992615,7cyclictest0-21swapper/200:05:292
2844556992619,4cyclictest0-21swapper/121:35:011
2844556992619,4cyclictest0-21swapper/121:35:001
2844558992517,6cyclictest0-21swapper/219:10:012
284455699241,10cyclictest0-21swapper/119:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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