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2026-09-06 - 12:23

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 792 highest latencies:
System rackeslot6s.osadl.org (updated Sun Sep 06, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3132531997771,4cyclictest231ktimers/123:25:191
3132531997335,5cyclictest0-21swapper/100:25:011
313253399717,49cyclictest30-21rcuc/223:50:012
313252999691,58cyclictest0-21swapper/023:40:140
3132529996524,36cyclictest0-21swapper/020:00:010
3132529996224,15cyclictest12-21ksoftirqd/020:05:010
3132529995925,5cyclictest0-21swapper/000:25:010
313253199577,12cyclictest3159216-21apt-get21:45:021
3132529995650,2cyclictest0-21swapper/023:45:140
313253399544,19cyclictest0-21swapper/219:50:012
3132533995440,9cyclictest0-21swapper/219:15:012
3132533995412,21cyclictest3145825-21/usr/sbin/munin20:25:202
313253399534,22cyclictest32-21ksoftirqd/222:15:192
3132529995346,4cyclictest20850irq/208-8000000.ethernet19:40:190
3132533995243,5cyclictest3153939-21grep21:10:282
3132529995248,2cyclictest0-21swapper/020:40:200
3132529995143,4cyclictest167350irq/118-8000000.ethernet-tx023:00:260
3132533995035,10cyclictest0-21swapper/219:50:292
313252999505,7cyclictest0-21swapper/019:20:020
3132529995041,5cyclictest3138019-21sendmail19:39:590
3132529995026,21cyclictest20650irq/252-8000000.ethernet20:35:230
313252999502,44cyclictest3162496-21sendmail_mailqu22:00:290
3132533994931,12cyclictest311ktimers/223:25:152
3132529994942,4cyclictest167350irq/118-8000000.ethernet-tx023:50:260
313252999491,5cyclictest3171805-21awk22:55:280
3132533994732,10cyclictest0-21swapper/200:10:312
3132533994730,12cyclictest0-21swapper/221:30:282
3132533994722,17cyclictest311ktimers/221:40:132
3132533994722,17cyclictest311ktimers/221:40:132
3132529994740,4cyclictest167350irq/118-8000000.ethernet-tx022:25:170
3132529994735,8cyclictest0-21swapper/023:10:310
3132529994725,19cyclictest19750irq/27-20000000.i2c22:10:180
3132529994725,19cyclictest19750irq/27-20000000.i2c22:10:180
3132533994636,7cyclictest3172506-21phc2sys23:00:262
3132531994638,4cyclictest167450irq/126-8000000.ethernet-tx120:15:301
3132529994638,4cyclictest167350irq/118-8000000.ethernet-tx000:35:210
3132529994630,14cyclictest167350irq/118-8000000.ethernet-tx022:50:260
3132529994630,14cyclictest167350irq/118-8000000.ethernet-tx022:50:260
3132533994534,8cyclictest3143085-21munin-plugin-st20:10:012
3132531994534,8cyclictest3171967-21sendmail23:00:001
313252999454,7cyclictest3182081-21grep23:55:290
3132529994533,5cyclictest3133580-21sed19:15:020
313253399449,12cyclictest3184921-21/usr/sbin/munin00:15:192
313253399449,12cyclictest3184921-21/usr/sbin/munin00:15:192
3132531994433,7cyclictest0-21swapper/120:00:001
3132531994431,7cyclictest3151434-21grep20:55:281
3132529994437,4cyclictest20850irq/208-8000000.ethernet21:25:260
3132529994437,4cyclictest0-21swapper/020:00:170
3132529994436,5cyclictest0-21swapper/023:20:010
313252999442,40cyclictest0-21swapper/021:00:000
3132533994327,11cyclictest311ktimers/220:20:122
3132533994326,12cyclictest311ktimers/221:50:142
3132529994335,4cyclictest167350irq/118-8000000.ethernet-tx023:20:180
3132529994331,9cyclictest1283-21cron22:25:000
313252999432,5cyclictest3159036-21/usr/sbin/munin21:40:290
313252999432,5cyclictest3159036-21/usr/sbin/munin21:40:290
3132529994323,18cyclictest0-21swapper/021:55:240
3132529994323,18cyclictest0-21swapper/021:55:240
313252999431,5cyclictest3182705-21memory00:00:270
313252999431,40cyclictest0-21swapper/000:30:340
313252999431,39cyclictest3176671-21cut23:25:240
313252999431,38cyclictest131ktimers/023:35:270
3132533994233,5cyclictest0-21swapper/223:35:282
3132533994231,6cyclictest0-21swapper/222:25:282
3132533994230,7cyclictest3170183-21grep22:45:332
3132533994230,7cyclictest311ktimers/223:30:252
3132533994230,7cyclictest311ktimers/223:30:252
3132533994222,10cyclictest0-21swapper/222:35:222
3132533994222,10cyclictest0-21swapper/222:35:222
3132531994234,5cyclictest3176193-21cron23:25:001
3132531994232,7cyclictest3167644-21grep22:30:331
3132531994230,8cyclictest0-21swapper/119:15:011
3132531994228,9cyclictest0-21swapper/120:00:271
3132529994235,3cyclictest3151903-21tune2fs21:00:200
3132529994224,15cyclictest3185220-21meminfo00:15:230
3132529994224,15cyclictest3185220-21meminfo00:15:230
313252999421,4cyclictest0-21swapper/022:20:000
3132533994127,11cyclictest0-21swapper/221:35:282
3132533994126,8cyclictest0-21swapper/219:35:292
3132531994132,5cyclictest0-21swapper/119:50:201
3132531994132,4cyclictest3142979-21tail20:05:271
3132531994128,9cyclictest0-21swapper/120:20:291
3132531994124,13cyclictest0-21swapper/119:30:201
3132531994124,13cyclictest0-21swapper/119:30:191
3132531994124,11cyclictest0-21swapper/122:40:261
313252999414,35cyclictest12-21ksoftirqd/021:45:050
313252999412,4cyclictest3149837-21munin-run20:50:000
313252999411,3cyclictest0-21swapper/022:35:010
313252999411,38cyclictest0-21swapper/019:50:270
3132533994028,8cyclictest0-21swapper/220:40:322
3132533994028,7cyclictest3149748-21grep20:45:272
3132531994029,6cyclictest0-21swapper/119:20:301
3132529994033,4cyclictest15-21rcuc/021:05:310
3132529994032,5cyclictest3157513-21cron21:35:000
313252999401,7cyclictest0-21swapper/023:35:010
313252999401,7cyclictest0-21swapper/023:35:010
313252999401,3cyclictest3183502-21irqstats00:05:230
313252999401,36cyclictest3146437-21users20:25:310
3132533993928,6cyclictest0-21swapper/223:10:012
3132533993927,8cyclictest3182960-21grep00:00:312
3132533993924,10cyclictest0-21swapper/220:10:302
3132533993924,10cyclictest0-21swapper/220:10:302
3132533993923,12cyclictest311ktimers/223:10:132
3132531993932,4cyclictest0-21swapper/123:15:281
3132531993927,8cyclictest0-21swapper/120:35:261
3132529993925,9cyclictest0-21swapper/021:50:330
3132533993827,6cyclictest0-21swapper/221:20:182
3132533993825,8cyclictest0-21swapper/220:55:012
3132533993825,8cyclictest0-21swapper/220:55:012
3132533993823,10cyclictest0-21swapper/223:40:192
3132531993824,10cyclictest1660-21snmpd21:00:191
3132529993832,4cyclictest0-21swapper/020:15:000
3132529993832,4cyclictest0-21swapper/020:15:000
3132529993829,6cyclictest3139651-21grep19:45:310
3132529993827,7cyclictest3136337-21cat19:30:000
313252999381,35cyclictest0-21swapper/022:45:330
313252999381,35cyclictest0-21swapper/000:25:260
3132533993726,8cyclictest0-21swapper/200:35:282
3132533993725,8cyclictest0-21swapper/221:05:002
3132533993723,9cyclictest0-21swapper/200:05:272
3132531993728,5cyclictest3166822-21grep22:25:291
3132531993727,6cyclictest3166021-21grep22:20:301
3132531993727,5cyclictest0-21swapper/121:15:281
3132531993724,10cyclictest3172177-21/usr/sbin/munin23:00:261
313253199371,6cyclictest0-21swapper/100:30:011
313253199371,2cyclictest0-21swapper/121:10:021
313252999373,28cyclictest0-21swapper/021:20:020
3132529993731,4cyclictest0-21swapper/021:35:130
3132529993731,4cyclictest0-21swapper/021:10:280
3132529993731,4cyclictest0-21swapper/020:15:120
3132529993729,4cyclictest0-21swapper/023:05:300
313252999371,34cyclictest0-21swapper/022:05:170
313252999371,34cyclictest0-21swapper/000:10:150
3132533993630,4cyclictest167550irq/134-8000000.ethernet-tx219:20:002
3132533993628,4cyclictest14-21rcu_preempt22:30:222
3132533993627,4cyclictest0-21swapper/220:15:272
3132533993625,6cyclictest0-21swapper/222:00:282
3132533993624,6cyclictest0-21swapper/222:55:272
3132533993623,7cyclictest0-21swapper/221:20:012
3132533993622,8cyclictest0-21swapper/223:55:282
3132533993619,11cyclictest3168800-21/usr/sbin/munin22:40:202
3132531993629,4cyclictest167450irq/126-8000000.ethernet-tx119:20:001
3132531993628,5cyclictest3158361-21cat21:39:591
3132531993627,5cyclictest0-21swapper/120:45:271
3132531993626,7cyclictest1653-21lldpd20:50:311
3132531993626,7cyclictest1653-21lldpd20:50:311
3132531993623,9cyclictest0-21swapper/121:50:331
3132531993623,8cyclictest1283-21cron00:15:001
3132531993622,9cyclictest0-21swapper/123:55:281
3132529993629,4cyclictest19750irq/27-20000000.i2c20:50:210
3132529993629,4cyclictest19750irq/27-20000000.i2c20:50:210
313252999361,4cyclictest0-21swapper/021:20:040
313252999361,4cyclictest0-21swapper/019:30:320
313252999361,4cyclictest0-21swapper/019:30:320
313253399356,3cyclictest0-21swapper/223:20:002
3132531993529,4cyclictest3132525-21cyclictest22:50:341
3132531993529,4cyclictest3132525-21cyclictest22:50:341
3132531993529,4cyclictest167450irq/126-8000000.ethernet-tx100:32:071
3132531993526,6cyclictest0-21swapper/119:30:001
3132531993526,5cyclictest0-21swapper/122:10:211
3132531993526,5cyclictest0-21swapper/122:10:211
3132531993523,8cyclictest0-21swapper/123:10:221
313253199351,28cyclictest0-21swapper/123:05:221
3132529993528,4cyclictest0-21swapper/022:40:150
3132529993521,9cyclictest3135138-21kernelversion19:20:250
313252999351,9cyclictest0-21swapper/022:35:220
313252999351,9cyclictest0-21swapper/022:35:220
313252999351,32cyclictest0-21swapper/020:31:130
3132533993428,3cyclictest3147188-21unixbench_multi20:30:282
3132533993426,5cyclictest3185782-21/usr/sbin/munin00:20:162
3132531993424,5cyclictest0-21swapper/121:25:211
3132531993423,8cyclictest3148360-21/usr/sbin/munin20:40:111
313253199342,29cyclictest3162884-21/usr/sbin/munin22:05:221
313253199341,4cyclictest0-21swapper/119:40:011
3132531993410,11cyclictest3155204-21/usr/sbin/munin21:20:211
3132529993427,5cyclictest131ktimers/020:20:230
3132529993411,15cyclictest0-21swapper/019:10:010
3132533993324,6cyclictest0-21swapper/221:00:012
3132533993323,6cyclictest0-21swapper/222:20:282
3132533993321,9cyclictest0-21swapper/219:25:272
3132533993320,8cyclictest0-21swapper/223:25:022
3132533993312,4cyclictest8321systemd-network22:54:352
3132533993312,4cyclictest8321systemd-network22:54:352
3132531993324,6cyclictest1653-21lldpd20:15:011
3132531993321,9cyclictest0-21swapper/122:15:271
3132533993226,4cyclictest0-21swapper/221:55:012
3132533993226,4cyclictest0-21swapper/221:55:012
3132533993225,3cyclictest0-21swapper/223:50:212
3132533993221,7cyclictest0-21swapper/220:35:282
3132533993219,11cyclictest311ktimers/221:05:172
3132533993218,9cyclictest0-21swapper/221:25:282
3132531993219,9cyclictest3180626-21cat23:50:021
3132533993123,6cyclictest1660-21snmpd21:45:262
3132533993122,6cyclictest0-21swapper/220:00:012
3132533993120,5cyclictest0-21swapper/222:10:292
3132533993120,5cyclictest0-21swapper/222:10:292
313253399311,24cyclictest0-21swapper/200:30:062
3132533993111,5cyclictest8321systemd-network20:04:132
3132531993125,2cyclictest0-21swapper/121:30:321
3132531993124,4cyclictest3181301-21grep23:50:291
3132531993122,4cyclictest0-21swapper/120:25:291
3132531993121,7cyclictest0-21swapper/122:00:291
3132533993021,5cyclictest0-21swapper/200:25:292
3132533993011,14cyclictest311ktimers/219:20:162
3132531993020,8cyclictest231ktimers/123:40:251
3132533992923,5cyclictest30-21rcuc/219:30:192
3132533992923,5cyclictest30-21rcuc/219:30:192
313253399292,12cyclictest3132541-21latency_hist19:10:002
3132531992920,5cyclictest0-21swapper/121:55:291
3132531992920,5cyclictest0-21swapper/121:55:291
3132531992916,6cyclictest0-21swapper/100:15:211
3132531992916,6cyclictest0-21swapper/100:15:211
313253199291,25cyclictest1660-21snmpd21:40:261
313253199291,25cyclictest1660-21snmpd21:40:261
3132533992818,7cyclictest0-21swapper/219:40:162
3132531992819,6cyclictest3139707-21apt19:50:001
3132531992819,6cyclictest0-21swapper/121:10:291
3132531992819,4cyclictest0-21swapper/120:15:011
3132531992818,7cyclictest0-21swapper/123:30:281
3132531992818,7cyclictest0-21swapper/123:30:281
3132531992818,6cyclictest0-21swapper/122:35:301
3132531992818,6cyclictest0-21swapper/122:35:301
313253199281,2cyclictest0-21swapper/120:35:001
313253199281,2cyclictest0-21swapper/100:05:011
313253399271,22cyclictest0-21swapper/222:05:162
3132531992721,4cyclictest22-21rcuc/100:05:191
3132531992719,4cyclictest0-21swapper/100:40:001
3132531992718,5cyclictest0-21swapper/123:40:001
3132531992516,6cyclictest231ktimers/122:45:171
3132531992515,8cyclictest231ktimers/119:40:141
3132531992114,4cyclictest0-21swapper/119:10:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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