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2026-03-12 - 14:22

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 Thu Mar 12, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11925699910292,7cyclictest391ktimers/300:35:053
11925699910292,7cyclictest391ktimers/300:35:043
1192563998433,33cyclictest20850irq/208-8000000.ethernet21:55:000
1192565996050,5cyclictest1213348-21munin-plugin-st21:10:011
1192563995911,41cyclictest0-21swapper/020:35:010
1192563995911,41cyclictest0-21swapper/020:35:010
1192566995647,5cyclictest1194585-21cat19:20:002
1192565995645,5cyclictest0-21swapper/121:30:211
1192563995449,3cyclictest0-21swapper/023:50:120
119256399513,21cyclictest0-21swapper/000:40:010
119256399513,21cyclictest0-21swapper/000:40:010
1192563995110,12cyclictest1206413-21apt-get20:30:010
1192566994943,3cyclictest1241480-21munin-plugin-st23:55:002
1192565994937,7cyclictest1200455-21grep19:50:291
1192565994936,9cyclictest0-21swapper/122:30:001
119256399489,2cyclictest0-21swapper/023:30:000
1192566994734,9cyclictest0-21swapper/200:00:272
1192563994735,8cyclictest0-21swapper/020:59:590
119256399472,5cyclictest1215548-21meminfo21:20:240
1192566994633,9cyclictest0-21swapper/222:55:192
1192566994633,9cyclictest0-21swapper/222:00:002
1192565994637,5cyclictest1212399-21grep21:00:261
1192565994633,7cyclictest0-21swapper/123:35:021
119256399461,42cyclictest1248334-21apt-key00:35:010
1192566994528,9cyclictest0-21swapper/222:25:012
1192565994537,4cyclictest0-21swapper/123:05:151
1192563994531,10cyclictest0-21swapper/022:05:270
1192566994435,4cyclictest167550irq/134-8000000.ethernet-tx220:40:242
1192566994435,4cyclictest14-21rcu_preempt23:45:302
1192566994434,5cyclictest0-21swapper/223:20:212
1192565994436,5cyclictest1197848-21grep19:35:261
1192566994337,4cyclictest311ktimers/200:25:022
1192566994337,4cyclictest311ktimers/200:25:012
1192566994334,5cyclictest1219183-21grep21:40:292
1192566994334,5cyclictest1208207-21head20:35:272
1192566994334,5cyclictest1208207-21head20:35:272
1192565994328,9cyclictest0-21swapper/119:10:281
1192565994327,8cyclictest0-21swapper/120:35:281
1192565994327,8cyclictest0-21swapper/120:35:281
1192563994330,8cyclictest0-21swapper/023:35:020
119256399432,4cyclictest0-21swapper/020:15:010
119256399431,40cyclictest0-21swapper/000:00:000
1192566994229,9cyclictest0-21swapper/219:10:272
1192565994231,5cyclictest0-21swapper/119:55:261
1192565994230,8cyclictest0-21swapper/122:40:011
1192563994236,4cyclictest1243267-21munin-run00:05:000
1192563994232,6cyclictest0-21swapper/021:40:280
1192563994231,8cyclictest0-21swapper/000:25:310
1192563994231,8cyclictest0-21swapper/000:25:310
1192563994230,8cyclictest0-21swapper/023:05:280
1192563994230,8cyclictest0-21swapper/022:55:280
1192563994229,9cyclictest0-21swapper/022:10:290
1192563994229,8cyclictest0-21swapper/022:40:000
1192563994228,11cyclictest0-21swapper/019:25:280
119256399422,4cyclictest0-21swapper/019:15:280
119256399422,38cyclictest0-21swapper/020:05:190
1192566994133,4cyclictest1217459-21grep21:30:282
1192566994132,5cyclictest1220841-21grep21:50:292
1192566994130,8cyclictest0-21swapper/223:15:002
1192566994129,9cyclictest0-21swapper/219:20:232
1192566994126,8cyclictest0-21swapper/222:35:282
1192566994125,9cyclictest0-21swapper/219:30:202
1192566994121,11cyclictest0-21swapper/221:35:192
1192565994132,5cyclictest0-21swapper/100:15:291
1192565994131,5cyclictest0-21swapper/120:20:251
1192565994129,5cyclictest0-21swapper/119:25:291
1192565994128,9cyclictest0-21swapper/121:25:271
1192565994126,9cyclictest0-21swapper/123:15:301
1192565994125,11cyclictest0-21swapper/122:55:011
1192563994130,8cyclictest0-21swapper/021:35:270
1192563994130,7cyclictest0-21swapper/019:40:260
1192563994129,8cyclictest0-21swapper/000:05:260
1192563994128,9cyclictest0-21swapper/020:00:010
119256399412,5cyclictest1232954-21munin-run23:05:010
119256399411,35cyclictest0-21swapper/021:30:020
1192563994111,28cyclictest1204512-21rt-features20:15:290
1192566994024,9cyclictest0-21swapper/222:50:262
1192565994029,6cyclictest0-21swapper/119:30:271
1192565994029,4cyclictest0-21swapper/100:25:231
1192565994029,4cyclictest0-21swapper/100:25:231
1192565994026,7cyclictest0-21swapper/120:00:291
1192563994032,5cyclictest1193557-21latency_hist19:15:020
1192563994029,8cyclictest0-21swapper/021:55:310
1192563994029,7cyclictest0-21swapper/021:05:280
1192563994029,7cyclictest0-21swapper/019:20:270
1192563994028,8cyclictest0-21swapper/022:25:280
1192563994028,8cyclictest0-21swapper/021:00:270
1192563994028,8cyclictest0-21swapper/000:15:290
1192563994026,8cyclictest0-21swapper/019:30:270
119256399401,4cyclictest0-21swapper/020:50:200
1192566993933,4cyclictest167550irq/134-8000000.ethernet-tx221:15:172
1192566993931,4cyclictest167550irq/134-8000000.ethernet-tx219:45:232
1192566993931,4cyclictest167550irq/134-8000000.ethernet-tx200:05:282
1192566993930,5cyclictest1232871-21grep23:00:272
1192566993930,5cyclictest0-21swapper/223:15:222
1192566993929,5cyclictest0-21swapper/222:05:272
1192566993928,7cyclictest0-21swapper/219:55:272
1192565993931,5cyclictest1240642-21munin-plugin-st23:50:001
1192565993930,5cyclictest0-21swapper/119:40:241
1192565993929,6cyclictest1222535-21grep22:00:281
1192565993927,8cyclictest1210701-21grep20:50:271
1192565993927,8cyclictest0-21swapper/120:35:011
1192565993927,8cyclictest0-21swapper/120:35:011
1192565993924,9cyclictest0-21swapper/120:30:011
1192563993934,3cyclictest1235413-21unixbench_singl23:15:290
1192563993929,7cyclictest23850irq/422-mmc121:45:280
1192563993929,7cyclictest23850irq/422-mmc121:45:280
1192563993929,7cyclictest0-21swapper/020:50:010
1192563993928,8cyclictest0-21swapper/023:10:270
1192563993927,9cyclictest0-21swapper/023:40:000
1192563993927,9cyclictest0-21swapper/022:20:290
1192563993926,9cyclictest0-21swapper/019:10:000
1192563993926,8cyclictest0-21swapper/020:40:270
1192563993923,11cyclictest0-21swapper/022:45:280
1192566993830,4cyclictest167550irq/134-8000000.ethernet-tx200:30:232
1192566993829,5cyclictest0-21swapper/221:10:022
1192566993828,5cyclictest1249203-21grep00:35:292
1192566993828,5cyclictest1249203-21grep00:35:292
1192566993826,7cyclictest1246591-21grep00:20:262
119256699382,4cyclictest1229424-21unixbench_singl22:40:292
1192565993831,4cyclictest167450irq/126-8000000.ethernet-tx119:20:261
1192565993830,4cyclictest0-21swapper/121:25:001
1192565993829,6cyclictest1225932-21grep22:20:291
1192565993829,5cyclictest0-21swapper/121:35:261
1192565993828,5cyclictest0-21swapper/121:40:201
1192565993825,8cyclictest0-21swapper/123:10:271
119256599381,28cyclictest1249027-21ptp4l00:35:271
119256599381,28cyclictest1249027-21ptp4l00:35:261
1192563993827,8cyclictest0-21swapper/020:35:280
1192563993827,8cyclictest0-21swapper/020:35:280
1192563993826,8cyclictest0-21swapper/019:45:290
119256399381,35cyclictest0-21swapper/023:40:130
1192566993729,5cyclictest1198776-21grep19:40:272
1192566993729,4cyclictest167550irq/134-8000000.ethernet-tx222:25:232
1192566993725,8cyclictest0-21swapper/219:25:202
1192566993725,6cyclictest1209867-21grep20:45:272
1192566993720,9cyclictest0-21swapper/222:45:282
1192565993728,4cyclictest0-21swapper/122:05:251
1192565993727,7cyclictest0-21swapper/120:59:591
1192565993727,6cyclictest0-21swapper/122:15:271
1192565993724,8cyclictest0-21swapper/121:15:221
119256599371,28cyclictest0-21swapper/123:40:281
119256599371,26cyclictest0-21swapper/121:50:251
1192563993730,4cyclictest1231167-21munin-plugin-st22:55:010
119256399372,8cyclictest1214184-21apt21:14:590
1192563993728,6cyclictest0-21swapper/000:10:280
1192563993726,7cyclictest0-21swapper/023:45:300
1192563993724,9cyclictest0-21swapper/000:20:270
1192563993723,8cyclictest0-21swapper/022:30:270
119256399371,34cyclictest0-21swapper/021:15:120
1192566993614,11cyclictest1206628-21latency_hist20:30:022
1192565993629,4cyclictest0-21swapper/123:00:001
1192565993628,5cyclictest0-21swapper/122:10:281
1192565993627,6cyclictest0-21swapper/100:05:271
1192565993627,5cyclictest0-21swapper/119:45:301
1192563993625,8cyclictest0-21swapper/021:30:290
1192563993625,8cyclictest0-21swapper/019:35:260
1192563993625,6cyclictest0-21swapper/023:20:270
119256399361,33cyclictest0-21swapper/022:40:150
1192566993526,6cyclictest1202810-21grep20:05:252
1192566993526,5cyclictest1207302-21grep20:30:272
1192566993526,5cyclictest1207302-21grep20:30:262
1192566993524,7cyclictest1242366-21grep23:55:282
119256699351,28cyclictest0-21swapper/223:40:152
1192565993527,4cyclictest1219998-21grep21:45:291
1192565993527,4cyclictest1219998-21grep21:45:291
1192565993526,4cyclictest167450irq/126-8000000.ethernet-tx123:25:221
1192565993524,5cyclictest0-21swapper/123:20:201
119256599351,27cyclictest0-21swapper/100:20:261
1192563993522,9cyclictest0-21swapper/022:15:290
1192566993426,4cyclictest167550irq/134-8000000.ethernet-tx223:35:232
1192566993426,4cyclictest0-21swapper/220:15:312
1192566993424,6cyclictest1211533-21grep20:55:272
1192566993423,5cyclictest0-21swapper/221:00:192
119256699342,27cyclictest0-21swapper/220:00:192
1192566993420,11cyclictest0-21swapper/219:40:012
1192565993427,4cyclictest167450irq/126-8000000.ethernet-tx123:50:261
1192565993426,5cyclictest1221701-21grep21:55:311
1192565993425,5cyclictest0-21swapper/121:10:181
1192565993424,7cyclictest1194364-21grep19:15:261
1192565993423,8cyclictest0-21swapper/122:45:211
1192565993423,6cyclictest0-21swapper/100:00:271
1192565993420,8cyclictest1203233-21/usr/sbin/munin20:10:221
1192563993422,8cyclictest1205488-21grep20:20:280
1192563993422,7cyclictest0-21swapper/019:50:280
1192563993421,9cyclictest0-21swapper/022:00:290
119256399341,3cyclictest0-21swapper/020:03:420
1192566993326,4cyclictest167550irq/134-8000000.ethernet-tx220:20:122
1192566993325,5cyclictest167550irq/134-8000000.ethernet-tx222:30:222
1192566993325,4cyclictest0-21swapper/221:20:182
1192566993324,6cyclictest1244883-21grep00:10:282
119256699332,3cyclictest0-21swapper/222:15:282
1192566993323,7cyclictest0-21swapper/223:05:282
1192565993324,6cyclictest1232312-21/usr/sbin/munin23:00:221
1192565993322,7cyclictest1229434-21grep22:40:291
1192566993224,6cyclictest1224224-21grep22:10:282
1192566993224,5cyclictest1203378-21grep20:10:202
1192566993223,5cyclictest0-21swapper/221:10:272
1192566993219,8cyclictest311ktimers/200:15:122
119256599322,4cyclictest0-21swapper/120:42:181
1192565993223,5cyclictest1227649-21grep22:30:281
1192565993222,6cyclictest0-21swapper/123:55:151
1192566993123,5cyclictest0-21swapper/221:25:272
1192566993122,5cyclictest0-21swapper/222:00:282
1192566993118,9cyclictest0-21swapper/220:50:252
1192565993124,4cyclictest0-21swapper/100:10:271
119256599309,13cyclictest1209890-21unixbench_multi20:45:271
1192566992922,4cyclictest1220069-21grep21:45:292
1192566992922,4cyclictest1220069-21grep21:45:292
119256699291,9cyclictest0-21swapper/219:10:012
119256599292,17cyclictest1248527-21latency_hist00:35:001
119256599291,26cyclictest0-21swapper/123:35:181
119256699281,25cyclictest0-21swapper/219:50:382
1192565992821,4cyclictest0-21swapper/120:19:591
1192565992819,6cyclictest231ktimers/120:05:101
119256699273,16cyclictest1236944-21ptp4l23:25:262
1192566992616,6cyclictest0-21swapper/223:30:212
119256599252,16cyclictest1660-21snmpd19:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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