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2026-04-30 - 19:20

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 Apr 30, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30032819911466,38cyclictest231ktimers/110:18:141
3003278999211,16cyclictest3039443-21apt-get10:40:020
300327899779,4cyclictest3008584-21apt-get07:40:010
3003278997515,42cyclictest20850irq/208-8000000.ethernet10:18:150
300328199739,27cyclictest141rcu_preempt10:25:111
300327899724,62cyclictest0-21swapper/010:50:120
300327899724,62cyclictest0-21swapper/010:50:120
3003282996843,18cyclictest311ktimers/210:18:152
3003282996110,46cyclictest30-21rcuc/209:20:022
300327899592,17cyclictest0-21swapper/007:55:010
3003282995635,16cyclictest311ktimers/212:30:102
3003282995635,16cyclictest311ktimers/212:30:102
3003278995648,5cyclictest3029468-21munin-plugin-st09:45:010
3003282995237,13cyclictest311ktimers/207:40:042
3003282995234,10cyclictest311ktimers/211:05:112
3003278994942,4cyclictest167350irq/118-8000000.ethernet-tx008:40:010
3003278994914,31cyclictest0-21swapper/009:20:280
3003278994912,6cyclictest3055617-21apt-get12:15:020
3003282994816,19cyclictest3011411-21/usr/sbin/munin07:55:172
3003282994816,19cyclictest3011411-21/usr/sbin/munin07:55:172
3003281994838,5cyclictest0-21swapper/107:30:281
3003278994839,5cyclictest0-21swapper/007:40:150
3003282994736,6cyclictest0-21swapper/210:30:012
3003281994733,9cyclictest0-21swapper/109:20:021
3003278994736,7cyclictest3028624-21sendmail09:40:000
3003278994730,13cyclictest3013886-21cat08:10:020
300327899471,43cyclictest0-21swapper/007:15:260
3003282994642,2cyclictest0-21swapper/207:35:012
3003282994630,11cyclictest311ktimers/212:35:122
3003278994639,4cyclictest20650irq/252-8000000.ethernet11:35:260
300327899462,5cyclictest3017012-21gunzip08:25:260
300327899462,41cyclictest3033462-21ptp4l10:05:420
300327899461,7cyclictest3050084-21ssh11:40:190
300328199457,12cyclictest3059928-21apt-get12:40:011
3003281994537,5cyclictest3016383-21apt-key08:25:011
3003278994538,4cyclictest167350irq/118-8000000.ethernet-tx009:30:160
3003282994436,5cyclictest0-21swapper/209:24:592
3003282994431,8cyclictest0-21swapper/210:55:282
3003282994431,8cyclictest0-21swapper/208:25:022
3003278994437,4cyclictest20650irq/252-8000000.ethernet08:30:180
3003278994437,4cyclictest0-21swapper/011:15:100
3003282994336,5cyclictest3031989-21munin-plugin-st10:00:012
3003282994336,5cyclictest3031989-21munin-plugin-st10:00:012
3003282994336,4cyclictest0-21swapper/208:04:592
3003282994332,6cyclictest0-21swapper/212:05:292
3003282994331,8cyclictest3043719-21grep11:00:292
3003281994337,3cyclictest3015426-21latency_hist08:19:591
3003281994332,7cyclictest0-21swapper/108:50:001
3003278994336,4cyclictest167350irq/118-8000000.ethernet-tx010:35:230
3003278994334,6cyclictest3042951-21sh11:00:000
3003282994231,7cyclictest3058141-21grep12:25:272
300328199421,8cyclictest3022526-21apt-get09:05:011
300328199421,30cyclictest3031344-21/usr/sbin/munin09:55:291
300328199421,30cyclictest3031344-21/usr/sbin/munin09:55:291
3003278994232,6cyclictest3038642-21latency_hist10:35:000
300327899421,5cyclictest0-21swapper/008:55:020
3003282994133,4cyclictest167550irq/134-8000000.ethernet-tx212:15:012
3003282994127,9cyclictest0-21swapper/210:00:192
3003282994127,9cyclictest0-21swapper/208:40:272
3003282994125,11cyclictest311ktimers/209:30:102
3003281994131,4cyclictest0-21swapper/111:25:201
3003281994128,8cyclictest0-21swapper/110:55:281
3003281994127,10cyclictest0-21swapper/107:40:011
3003281994124,10cyclictest0-21swapper/110:00:291
3003278994127,9cyclictest0-21swapper/012:00:000
3003278994123,13cyclictest0-21swapper/007:45:040
300327899411,3cyclictest3025289-21cp09:20:020
300327899411,38cyclictest0-21swapper/008:20:230
300327899411,2cyclictest0-21swapper/010:50:010
3003282994029,9cyclictest311ktimers/211:35:142
3003282994026,7cyclictest0-21swapper/210:05:432
3003282994024,11cyclictest0-21swapper/211:20:012
3003282994018,17cyclictest311ktimers/211:40:092
300328199408,26cyclictest231ktimers/112:25:231
3003281994028,7cyclictest3050456-21grep11:40:261
3003281994024,9cyclictest0-21swapper/112:10:291
300328199401,33cyclictest0-21swapper/110:50:271
300328199401,33cyclictest0-21swapper/110:50:271
300327899402,4cyclictest0-21swapper/011:00:240
3003278994022,16cyclictest0-21swapper/012:35:260
300327899402,11cyclictest3014149-21/usr/sbin/munin08:10:200
3003278994020,18cyclictest20650irq/252-8000000.ethernet11:10:180
300327899401,3cyclictest3019769-21munin-run08:45:000
300327899401,37cyclictest0-21swapper/012:00:180
300327899401,37cyclictest0-21swapper/010:25:280
300327899401,37cyclictest0-21swapper/009:05:200
300327899401,36cyclictest3032735-21sed10:00:290
3003282993931,4cyclictest0-21swapper/209:05:292
3003282993929,6cyclictest3018845-21grep08:35:282
3003282993929,6cyclictest0-21swapper/211:20:262
3003282993929,5cyclictest0-21swapper/209:15:012
3003282993925,9cyclictest3053824-21grep12:00:282
3003281993929,6cyclictest3039344-21grep10:35:281
3003281993926,9cyclictest0-21swapper/112:20:271
3003281993926,6cyclictest3012014-21grep07:55:271
3003281993926,6cyclictest3012014-21grep07:55:271
300328199391,2cyclictest0-21swapper/108:40:021
3003278993932,4cyclictest0-21swapper/011:30:160
3003278993932,4cyclictest0-21swapper/011:30:160
300327899392,35cyclictest0-21swapper/009:55:140
300327899392,35cyclictest0-21swapper/009:55:130
300327899391,3cyclictest3020105-21cut08:45:210
300327899391,36cyclictest0-21swapper/011:25:130
300327899391,36cyclictest0-21swapper/011:20:170
300327899391,36cyclictest0-21swapper/008:55:220
300327899391,2cyclictest3054441-21meminfo12:05:240
3003282993825,5cyclictest0-21swapper/209:25:212
3003281993828,6cyclictest0-21swapper/107:25:281
3003281993820,13cyclictest0-21swapper/112:15:191
3003278993830,4cyclictest19750irq/27-20000000.i2c11:45:270
3003278993825,9cyclictest0-21swapper/008:00:290
300327899381,3cyclictest0-21swapper/012:25:160
300327899381,35cyclictest0-21swapper/010:20:140
300327899381,35cyclictest0-21swapper/009:50:260
300327899381,35cyclictest0-21swapper/009:45:230
300327899381,2cyclictest0-21swapper/009:30:010
3003282993730,3cyclictest0-21swapper/210:50:252
3003282993730,3cyclictest0-21swapper/210:50:252
3003282993725,8cyclictest3010320-21unixbench_singl07:45:282
3003282993720,10cyclictest0-21swapper/208:30:282
3003281993724,8cyclictest0-21swapper/111:30:171
3003281993724,8cyclictest0-21swapper/111:30:171
300328199371,5cyclictest0-21swapper/109:30:011
3003278993730,4cyclictest167350irq/118-8000000.ethernet-tx010:10:180
3003278993730,4cyclictest0-21swapper/011:05:170
3003278993718,12cyclictest0-21swapper/011:50:290
300327899371,34cyclictest0-21swapper/008:15:130
300327899371,34cyclictest0-21swapper/007:10:230
300327899371,34cyclictest0-21swapper/007:10:220
300327899371,2cyclictest3005431-21apt-get07:20:120
300327899371,29cyclictest3022744-21ls09:05:010
3003282993625,8cyclictest3047666-21kernelversion11:25:242
3003281993629,3cyclictest0-21swapper/108:00:231
3003281993625,6cyclictest0-21swapper/109:10:191
3003281993625,5cyclictest0-21swapper/111:35:211
3003281993623,9cyclictest0-21swapper/107:10:221
3003281993623,9cyclictest0-21swapper/107:10:221
3003281993623,5cyclictest3037961-21/usr/sbin/munin10:30:271
3003281993622,7cyclictest0-21swapper/109:30:181
300328199361,8cyclictest0-21swapper/112:05:011
3003278993632,2cyclictest0-21swapper/007:26:460
300327899361,4cyclictest0-21swapper/012:25:020
300327899361,33cyclictest0-21swapper/012:15:180
300327899361,2cyclictest0-21swapper/007:10:000
3003282993527,4cyclictest0-21swapper/211:55:292
3003282993522,7cyclictest0-21swapper/209:00:272
3003281993528,4cyclictest167450irq/126-8000000.ethernet-tx107:15:241
3003281993527,4cyclictest167450irq/126-8000000.ethernet-tx111:45:251
3003281993526,4cyclictest0-21swapper/111:15:191
3003281993525,6cyclictest3052142-21unixbench_multi11:50:281
300328199351,4cyclictest0-21swapper/108:30:011
300328199351,4cyclictest0-21swapper/108:10:001
300328199351,3cyclictest24-21ksoftirqd/109:40:241
3003278993526,6cyclictest23850irq/422-mmc107:55:260
3003278993526,6cyclictest23850irq/422-mmc107:55:260
300327899351,3cyclictest0-21swapper/009:10:130
300327899351,32cyclictest0-21swapper/007:31:010
3003282993423,7cyclictest0-21swapper/208:10:282
3003281993425,4cyclictest0-21swapper/107:50:171
3003281993424,6cyclictest3019667-21grep08:40:261
3003281993423,8cyclictest0-21swapper/110:40:281
3003281993418,13cyclictest231ktimers/107:40:121
3003278993428,4cyclictest20850irq/208-8000000.ethernet12:30:100
3003278993428,4cyclictest20850irq/208-8000000.ethernet12:30:100
3003282993323,6cyclictest311ktimers/210:35:272
3003282993321,8cyclictest0-21swapper/209:50:282
3003282993313,12cyclictest311ktimers/210:20:092
300328299331,30cyclictest3014782-21/usr/sbin/munin08:15:162
3003281993324,5cyclictest0-21swapper/109:50:281
3003281993320,8cyclictest0-21swapper/109:05:201
3003282993225,3cyclictest0-21swapper/209:45:212
3003282993223,5cyclictest3013630-21grep08:05:272
3003282993223,5cyclictest0-21swapper/211:45:242
3003282993220,7cyclictest0-21swapper/208:25:292
3003282993215,14cyclictest311ktimers/210:40:132
3003282993214,15cyclictest311ktimers/208:45:112
300328299321,2cyclictest0-21swapper/210:15:012
3003281993224,5cyclictest0-21swapper/109:20:361
3003281993216,10cyclictest0-21swapper/112:00:021
300328199321,4cyclictest3041917-21kworker/u8:2+events_power_efficient11:10:271
300328199321,2cyclictest0-21swapper/107:50:021
300328199321,25cyclictest0-21swapper/108:55:121
3003282993124,5cyclictest3040611-21/usr/sbin/munin10:45:172
3003282993121,7cyclictest0-21swapper/209:35:282
3003282993121,6cyclictest30-21rcuc/207:10:162
3003282993121,6cyclictest30-21rcuc/207:10:162
3003282993121,6cyclictest0-21swapper/207:15:262
3003281993118,8cyclictest0-21swapper/110:10:291
3003281993114,11cyclictest231ktimers/112:30:121
3003281993114,11cyclictest231ktimers/112:30:121
3003282993022,4cyclictest0-21swapper/208:55:262
3003282993021,6cyclictest1660-21snmpd10:33:232
3003282993020,6cyclictest3006872-21grep07:25:292
3003282993019,8cyclictest3056545-21cron12:19:592
3003282993018,8cyclictest0-21swapper/211:10:262
300328199307,16cyclictest231ktimers/110:20:111
3003281993024,4cyclictest3018050-21munin-plugin-st08:35:001
3003281993021,5cyclictest0-21swapper/111:05:271
3003281993021,4cyclictest0-21swapper/111:00:241
300328199301,8cyclictest0-21swapper/110:50:011
3003281993018,8cyclictest0-21swapper/111:20:261
3003281993018,8cyclictest0-21swapper/109:45:271
3003281993016,9cyclictest0-21swapper/107:20:271
3003282992923,4cyclictest3005194-21kworker/u8:3-events_freezable_power_07:20:272
3003282992920,7cyclictest3010571-21/usr/sbin/munin07:50:182
3003282992920,4cyclictest0-21swapper/209:40:292
3003282992916,10cyclictest0-21swapper/207:35:262
300328299291,26cyclictest0-21swapper/212:20:152
3003282992815,10cyclictest0-21swapper/211:50:272
3003282992720,4cyclictest0-21swapper/211:30:272
3003282992720,4cyclictest0-21swapper/211:30:272
3003281992717,5cyclictest0-21swapper/112:05:261
3003281992620,3cyclictest0-21swapper/110:05:391
3003281992515,7cyclictest0-21swapper/109:35:261
3003281992513,9cyclictest0-21swapper/108:10:261
300328199251,22cyclictest0-21swapper/108:52:031
3003282992413,6cyclictest0-21swapper/208:55:022
3003281992112,4cyclictest0-21swapper/107:10:021
300328299194,10cyclictest3003367-21latency_hist07:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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