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2026-04-08 - 22:41

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

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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  Phytec
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackbslot5s.osadl.org (updated Wed Apr 08, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2718126995238,10cyclictest311ktimers/212:35:122
2718126995238,10cyclictest311ktimers/207:55:102
2718117994839,7cyclictest2831495-21kworker/u8:1+events_unbound12:38:460
2718117994837,6cyclictest2745692-21grep08:25:270
2718126994636,7cyclictest311ktimers/211:40:112
2718121994428,8cyclictest2742986-21kworker/u8:0+events_unbound08:37:551
2718126994335,6cyclictest2770708-21fschecks_time09:40:152
2718117994337,4cyclictest2737597-21kworker/u8:0+events_unbound08:07:520
2718117994336,5cyclictest2764784-21kworker/u8:1+events_unbound09:53:190
2718121994232,7cyclictest2741480-21fschecks_time08:15:161
2718117994236,4cyclictest2718846-21kworker/u8:1+events_unbound07:42:470
2718117994236,4cyclictest2718846-21kworker/u8:1+events_unbound07:42:470
2718121994134,4cyclictest2727167-21cron07:35:001
2718121994134,4cyclictest2727167-21cron07:35:001
2718130994033,5cyclictest2758529-21kworker/u8:0+events_unbound09:13:063
2718126994034,3cyclictest0-21swapper/207:20:012
2718121994032,4cyclictest2734002-21cron07:55:001
2718117994024,5cyclictest131rcu_preempt11:15:190
2718117994024,5cyclictest131rcu_preempt11:15:190
2718130993928,7cyclictest0-21swapper/308:50:003
2718121993928,8cyclictest2774894-21grep09:50:261
2718117993933,4cyclictest2721773-21kworker/u8:0+events_unbound07:17:460
2718117993932,5cyclictest2745786-21kworker/u8:3+events_unbound08:32:540
2718117993932,4cyclictest2823333-21idleruntime-cro12:15:000
2718117993928,7cyclictest2787313-21auditctl10:30:010
2718117993926,5cyclictest2799117-21kworker/u8:3+events_unbound11:02:420
2718117993922,11cyclictest131rcu_preempt11:06:140
2718130993831,4cyclictest0-21swapper/307:15:013
2718126993831,4cyclictest2807857-21runrttasks11:28:312
2718121993831,5cyclictest2776839-21kworker/u8:2+events_unbound10:13:231
2718117993831,4cyclictest2778795-21idleruntime-cro10:05:010
2718117993830,6cyclictest2769706-21kworker/u8:0+events_unbound09:43:140
2718117993824,8cyclictest131rcu_preempt11:40:050
2718117993819,11cyclictest131rcu_preempt10:35:130
2718126993725,8cyclictest311ktimers/207:35:102
2718126993725,8cyclictest311ktimers/207:35:102
271811799377,16cyclictest131rcu_preempt09:40:010
2718117993729,6cyclictest2752736-21kworker/u8:2+events_unbound09:28:090
2718117993712,5cyclictest131rcu_preempt10:20:120
2718130993629,5cyclictest2735590-21kworker/u8:2+events_unbound08:27:543
2718130993629,4cyclictest0-21swapper/307:45:003
2718130993629,4cyclictest0-21swapper/307:45:003
2718130993627,6cyclictest391ktimers/309:55:123
2718130993627,3cyclictest0-21swapper/311:20:003
2718130993627,3cyclictest0-21swapper/311:20:003
2718130993626,8cyclictest391ktimers/311:10:123
2718130993626,8cyclictest391ktimers/311:10:123
2718130993626,6cyclictest0-21swapper/307:50:243
2718126993626,6cyclictest0-21swapper/207:20:242
271812199364,5cyclictest131rcu_preempt07:20:121
2718121993625,7cyclictest0-21swapper/112:35:251
2718121993624,8cyclictest2783422-21grep10:15:251
2718117993627,4cyclictest0-21swapper/008:37:550
2718117993619,5cyclictest131rcu_preempt10:15:220
2718117993618,4cyclictest131rcu_preempt09:23:420
2718130993529,4cyclictest2742986-21kworker/u8:0+events_unbound08:43:013
2718126993525,6cyclictest0-21swapper/207:47:482
2718126993525,6cyclictest0-21swapper/207:47:472
2718121993528,4cyclictest0-21swapper/110:30:011
2718121993523,9cyclictest231ktimers/108:30:121
2718117993526,6cyclictest0-21swapper/008:20:000
2718117993525,6cyclictest0-21swapper/008:20:240
2718117993523,8cyclictest2720025-21latency_hist07:15:010
2718117993523,4cyclictest131rcu_preempt08:01:260
2718117993520,5cyclictest131rcu_preempt10:40:190
2718117993520,5cyclictest131rcu_preempt07:20:140
2718117993519,6cyclictest2758529-21kworker/u8:0+events_unbound09:07:280
2718117993519,4cyclictest131rcu_preempt11:58:190
2718117993519,4cyclictest131rcu_preempt08:43:030
2718117993518,5cyclictest131rcu_preempt08:00:010
2718117993518,4cyclictest131rcu_preempt07:49:100
2718117993518,4cyclictest131rcu_preempt07:49:100
2718130993428,4cyclictest2749534-21kworker/u8:1+events_unbound09:08:053
2718130993426,4cyclictest0-21swapper/311:45:153
2718130993425,4cyclictest0-21swapper/309:45:163
271813099341,6cyclictest0-21swapper/309:35:133
2718126993427,4cyclictest0-21swapper/208:15:252
2718126993425,5cyclictest0-21swapper/211:20:002
2718126993425,5cyclictest0-21swapper/211:20:002
2718121993426,4cyclictest0-21swapper/109:00:161
2718117993427,5cyclictest2761369-21kworker/u8:3+events_unbound09:12:420
2718117993424,6cyclictest2807577-21grep11:25:250
2718117993421,5cyclictest131rcu_preempt09:00:430
2718117993420,3cyclictest131rcu_preempt07:52:530
2718117993418,5cyclictest131rcu_preempt12:03:280
2718117993418,5cyclictest131rcu_preempt11:50:220
2718117993418,4cyclictest131rcu_preempt09:45:250
2718117993417,6cyclictest2795601-21kworker/u8:2+events_unbound10:59:120
2718117993414,10cyclictest131rcu_preempt07:36:300
2718117993414,10cyclictest131rcu_preempt07:36:300
2718117993414,10cyclictest131rcu_preempt07:30:090
2718117993414,10cyclictest131rcu_preempt07:30:090
2718130993325,4cyclictest0-21swapper/308:35:013
2718130993323,7cyclictest0-21swapper/312:10:243
2718130993323,6cyclictest0-21swapper/307:45:253
2718130993323,6cyclictest0-21swapper/307:45:253
2718130993314,5cyclictest131rcu_preempt10:00:113
2718126993326,4cyclictest0-21swapper/211:35:152
2718126993324,6cyclictest0-21swapper/210:40:012
2718126993324,5cyclictest0-21swapper/211:10:152
2718126993324,5cyclictest0-21swapper/211:10:152
2718126993323,6cyclictest0-21swapper/209:40:002
2718126993323,6cyclictest0-21swapper/209:00:012
2718126993323,6cyclictest0-21swapper/208:35:262
2718126993322,6cyclictest0-21swapper/210:05:242
2718126993322,6cyclictest0-21swapper/210:05:242
271812199334,5cyclictest131rcu_preempt11:05:121
2718121993326,5cyclictest2730570-21kworker/u8:3+events_unbound07:57:501
2718121993323,7cyclictest2819453-21unixbench_multi12:00:221
271811799336,18cyclictest131rcu_preempt08:10:170
271811799335,19cyclictest131rcu_preempt12:20:170
2718117993325,6cyclictest2749534-21kworker/u8:1+events_unbound08:58:050
2718117993324,5cyclictest2779567-21tr10:05:200
2718117993324,5cyclictest2779567-21tr10:05:200
2718117993321,7cyclictest0-21swapper/012:10:000
2718117993318,5cyclictest131rcu_preempt11:30:170
2718117993316,5cyclictest131rcu_preempt10:50:140
2718117993314,5cyclictest131rcu_preempt12:30:230
271813099328,12cyclictest40-21ksoftirqd/312:25:163
2718130993224,4cyclictest0-21swapper/310:30:243
2718130993223,6cyclictest0-21swapper/311:00:253
2718130993217,6cyclictest2714309-21kworker/u8:2+events_unbound07:25:043
2718130993216,5cyclictest2783507-21kworker/u8:0+events_unbound10:18:283
2718130993216,5cyclictest2753417-21kworker/u8:4+events_unbound08:54:033
2718126993223,6cyclictest0-21swapper/212:05:152
2718126993223,5cyclictest0-21swapper/210:00:012
271812199322,8cyclictest24-21ksoftirqd/112:20:111
2718121993224,4cyclictest0-21swapper/109:20:011
2718121993222,6cyclictest0-21swapper/107:40:251
2718121993222,6cyclictest0-21swapper/107:40:251
2718117993222,6cyclictest0-21swapper/011:10:250
2718117993222,6cyclictest0-21swapper/011:10:250
2718117993217,5cyclictest131rcu_preempt09:15:150
2718117993217,4cyclictest131rcu_preempt10:10:210
2718117993216,5cyclictest131rcu_preempt12:30:000
2718117993216,4cyclictest131rcu_preempt09:57:490
2718117993216,4cyclictest131rcu_preempt07:27:080
2718117993215,5cyclictest131rcu_preempt08:50:010
271813099318,13cyclictest131rcu_preempt10:05:243
271813099318,13cyclictest131rcu_preempt10:05:243
2718130993117,6cyclictest2788872-21kworker/u8:0+events_unbound10:39:003
2718130993110,12cyclictest40-21ksoftirqd/307:15:033
2718126993124,3cyclictest2806280-21cron11:25:002
2718126993121,6cyclictest0-21swapper/210:40:242
2718121993121,6cyclictest2737626-21sh08:05:011
2718121993121,6cyclictest0-21swapper/107:15:251
2718117993123,6cyclictest2788872-21kworker/u8:0+events_unbound10:47:420
2718117993121,7cyclictest2768122-21grep09:30:240
2718117993114,4cyclictest131rcu_preempt11:45:150
2718117993111,11cyclictest131rcu_preempt08:50:010
2718130993022,5cyclictest0-21swapper/310:50:003
2718130993022,4cyclictest0-21swapper/312:00:133
2718130993022,4cyclictest0-21swapper/310:20:253
2718130993022,4cyclictest0-21swapper/308:05:253
2718130993019,7cyclictest2795842-21ls10:55:003
2718130993015,9cyclictest131rcu_preempt09:15:173
2718130993015,4cyclictest131rcu_preempt12:05:133
2718126993024,4cyclictest2742986-21kworker/u8:0+events_unbound08:40:292
2718126993023,4cyclictest0-21swapper/212:00:132
2718126993020,7cyclictest1-21systemd12:33:442
2718121993021,5cyclictest2796490-21fschecks_time10:55:151
2718121993021,5cyclictest2770239-21cron09:40:001
2718121993020,6cyclictest0-21swapper/108:10:251
2718121993019,7cyclictest0-21swapper/112:15:241
2718117993016,4cyclictest131rcu_preempt11:20:190
2718117993013,4cyclictest131rcu_preempt10:30:190
271813099299,14cyclictest0-21swapper/308:20:123
271813099299,12cyclictest381rcuc/311:00:013
2718130992916,9cyclictest2805695-21seq11:20:243
2718130992912,11cyclictest131rcu_preempt08:01:383
2718126992922,4cyclictest0-21swapper/210:50:012
2718126992922,4cyclictest0-21swapper/209:10:242
2718126992921,4cyclictest0-21swapper/209:20:012
2718126992920,6cyclictest0-21swapper/210:55:012
2718126992919,6cyclictest0-21swapper/210:15:252
2718121992923,4cyclictest2735590-21kworker/u8:2+events_unbound08:22:541
2718121992921,6cyclictest231ktimers/107:10:121
2718121992921,5cyclictest2794545-21fschecks_time10:50:141
2718121992921,4cyclictest0-21swapper/112:30:151
2718121992918,7cyclictest0-21swapper/111:45:251
2718121992918,4cyclictest2742986-21kworker/u8:0+events_unbound08:44:211
2718121992917,6cyclictest2795601-21kworker/u8:2+events_unbound11:01:171
2718130992822,4cyclictest2752736-21kworker/u8:2+events_unbound09:33:103
2718130992822,4cyclictest2721773-21kworker/u8:0+events_unbound07:39:413
2718130992822,4cyclictest2721773-21kworker/u8:0+events_unbound07:39:413
2718130992820,4cyclictest0-21swapper/308:35:263
2718130992811,11cyclictest0-21swapper/309:25:243
2718126992819,6cyclictest0-21swapper/211:55:012
2718126992819,6cyclictest0-21swapper/209:50:262
2718126992819,6cyclictest0-21swapper/209:30:012
2718126992819,5cyclictest0-21swapper/207:40:252
2718126992819,5cyclictest0-21swapper/207:40:252
2718126992818,7cyclictest0-21swapper/207:15:012
2718121992821,5cyclictest2801327-21kworker/u8:1+events_unbound11:23:331
2718121992820,5cyclictest0-21swapper/111:50:241
2718121992820,4cyclictest0-21swapper/109:10:011
2718121992819,4cyclictest0-21swapper/110:50:011
2718121992817,8cyclictest1-21systemd09:23:071
271812199281,4cyclictest131rcu_preempt11:30:121
271812199281,14cyclictest0-21swapper/109:30:281
271811799288,12cyclictest131rcu_preempt11:35:190
271813099277,13cyclictest40-21ksoftirqd/310:26:223
271813099272,7cyclictest40-21ksoftirqd/309:40:243
271813099272,4cyclictest0-21swapper/311:50:123
2718130992721,3cyclictest0-21swapper/309:20:133
2718130992720,4cyclictest0-21swapper/310:40:243
2718130992720,4cyclictest0-21swapper/307:35:003
2718130992720,4cyclictest0-21swapper/307:35:003
2718130992719,5cyclictest0-21swapper/312:35:153
2718130992716,7cyclictest0-21swapper/307:20:243
2718130992715,3cyclictest131rcu_preempt09:50:263
2718130992713,8cyclictest131rcu_preempt07:59:233
2718130992712,6cyclictest2718846-21kworker/u8:1+events_unbound08:10:463
2718126992721,4cyclictest2776839-21kworker/u8:2+events_unbound10:03:212
2718126992721,3cyclictest0-21swapper/211:55:242
2718126992718,6cyclictest0-21swapper/207:30:162
2718126992718,6cyclictest0-21swapper/207:30:162
2718126992717,6cyclictest0-21swapper/208:05:012
271812199273,12cyclictest2702971-21kworker/1:1+mm_percpu_wq09:15:001
2718121992721,4cyclictest2769706-21kworker/u8:0-writeback09:55:161
2718121992720,4cyclictest2790732-21sendmail10:40:011
2718121992719,5cyclictest2771957-21cron09:45:001
2718121992719,4cyclictest0-21swapper/111:20:001
2718121992719,4cyclictest0-21swapper/111:20:001
2718121992718,5cyclictest0-21swapper/107:35:241
2718121992718,5cyclictest0-21swapper/107:35:231
2718121992717,7cyclictest0-21swapper/112:25:261
2718121992717,6cyclictest0-21swapper/111:40:241
2718121992717,6cyclictest0-21swapper/110:40:241
2718121992716,7cyclictest0-21swapper/108:45:241
271813099269,9cyclictest0-21swapper/309:03:063
2718130992614,8cyclictest391ktimers/311:55:113
2718130992612,8cyclictest131rcu_preempt11:40:283
2718130992611,9cyclictest131rcu_preempt11:25:133
271813099261,14cyclictest0-21swapper/312:30:113
2718126992620,4cyclictest2752736-21kworker/u8:2+events_unbound09:21:412
271812199269,7cyclictest131rcu_preempt08:50:181
2718121992620,4cyclictest2771816-21kworker/u8:2+events_unbound09:45:181
2718121992616,6cyclictest0-21swapper/111:55:241
2718121992616,6cyclictest0-21swapper/111:40:011
2718121992616,6cyclictest0-21swapper/110:30:241
2718130992518,3cyclictest0-21swapper/311:35:133
2718130992518,3cyclictest0-21swapper/308:15:163
2718126992516,5cyclictest0-21swapper/210:30:242
2718126992516,5cyclictest0-21swapper/208:50:252
2718126992516,5cyclictest0-21swapper/208:20:242
2718126992514,7cyclictest32-21ksoftirqd/209:00:252
271812199257,7cyclictest131rcu_preempt11:25:251
2718121992519,3cyclictest0-21swapper/107:25:191
2718121992511,7cyclictest24-21ksoftirqd/110:20:241
2718130992418,4cyclictest2780393-21kworker/u8:1+events_unbound10:10:123
2718130992417,3cyclictest0-21swapper/311:05:143
271813099240,14cyclictest40-21ksoftirqd/308:58:263
2718126992418,4cyclictest2780393-21kworker/u8:1+events_unbound10:11:182
2718126992416,5cyclictest0-21swapper/209:45:262
2718126992415,6cyclictest0-21swapper/211:35:012
2718126992413,8cyclictest2814359-21grep11:45:252
2718126992413,4cyclictest2718846-21kworker/u8:1+events_unbound08:12:572
271812199248,12cyclictest131rcu_preempt08:25:271
2718121992418,4cyclictest2735590-21kworker/u8:2+events_unbound08:05:101
2718121992418,4cyclictest2721773-21kworker/u8:0+events_unbound07:45:131
2718121992418,4cyclictest2721773-21kworker/u8:0+events_unbound07:45:131
2718121992417,5cyclictest380-21ntpd10:00:231
2718121992412,9cyclictest24-21ksoftirqd/112:05:161
2718121992411,11cyclictest24-21ksoftirqd/109:25:161
2718126992317,4cyclictest2745786-21kworker/u8:3+events_unbound08:26:552
2718126992316,4cyclictest0-21swapper/210:25:252
2718126992316,4cyclictest0-21swapper/208:45:242
2718121992315,4cyclictest0-21swapper/112:13:391
2718121992314,7cyclictest24-21ksoftirqd/108:55:251
2718121992314,5cyclictest0-21swapper/111:13:291
2718121992314,5cyclictest0-21swapper/111:13:291
2718126992216,3cyclictest0-21swapper/208:30:262
2718126992215,4cyclictest2822433-21ntpq12:10:212
2718126992215,3cyclictest0-21swapper/212:25:002
2718126992213,6cyclictest0-21swapper/210:20:232
2718126992213,6cyclictest0-21swapper/209:30:202
271812699221,15cyclictest0-21swapper/211:00:142
271812699221,15cyclictest0-21swapper/210:55:052
271812699211,4cyclictest2826987-21apt-get12:25:112
2718126992110,8cyclictest2800713-21grep11:05:242
271812699206,8cyclictest131rcu_preempt12:15:142
2718126992014,3cyclictest0-21swapper/208:05:252
2718126992013,4cyclictest2758707-21fschecks_count09:05:162
271812699201,10cyclictest2724238-21grep07:25:162
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