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2026-09-16 - 23:02

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 highest latencies:
System rackbslot5s.osadl.org (updated Wed Sep 16, 2026 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3709981995649,5cyclictest3767442-21kworker/u8:2+events_unbound10:28:023
3709978995648,6cyclictest3756777-21kworker/u8:0+events_unbound09:32:532
3709969995548,5cyclictest3801864-21kworker/u8:0+events_unbound11:38:220
3709978995242,6cyclictest3762109-21idleruntime-cro09:40:002
3709969995145,4cyclictest3749744-21kworker/u8:1+events_unbound09:12:500
3709969994841,4cyclictest3715618-21cron07:25:010
3709969994741,4cyclictest3823991-21kworker/u8:0+events_unbound12:38:310
3709978994639,5cyclictest3741108-21kworker/u8:0+events_unbound08:57:492
3709974994638,5cyclictest438-21cron10:10:011
3709978994539,4cyclictest3781220-21kworker/u8:0+events_unbound10:38:052
3709978994438,4cyclictest3765886-21fschecks_count09:50:152
3709969994438,4cyclictest3806813-21kworker/u8:2+events_unbound12:08:260
3709969994437,5cyclictest3754974-21kworker/u8:2+events_unbound09:27:510
3709969994432,8cyclictest3773577-21grep10:10:250
3709969994432,8cyclictest3773577-21grep10:10:250
3709969994235,5cyclictest3707936-21kworker/u8:0+events_unbound07:27:380
3709981994134,4cyclictest3746528-21cron08:55:013
3709981994132,6cyclictest3719017-21cron07:35:013
3709978994135,4cyclictest3730962-21kworker/u8:1+events_unbound08:07:432
3709969994133,5cyclictest121ktimers/007:50:100
3709969994129,9cyclictest3787672-21cron10:55:000
3709978994034,4cyclictest3777424-21kworker/u8:0+events_unbound10:25:202
3709978994032,4cyclictest3765522-21sh09:50:002
3709974994033,4cyclictest3741419-21cron08:40:011
3709969994034,4cyclictest3723978-21kworker/u8:0+events_unbound07:57:420
3709969994029,7cyclictest3711122-21grep07:10:270
3709981993929,4cyclictest3756777-21kworker/u8:0+events_unbound09:42:553
3709978993931,4cyclictest0-21swapper/211:55:002
3709978993926,9cyclictest311ktimers/212:35:132
3709974993926,10cyclictest231ktimers/109:10:161
3709969993933,4cyclictest3721213-21kworker/u8:2+events_unbound07:42:390
3709969993931,4cyclictest0-21swapper/011:35:010
3709969993926,4cyclictest131rcu_preempt08:53:220
3709969993918,5cyclictest131rcu_preempt11:50:000
3709969993913,6cyclictest131rcu_preempt12:25:190
3709981993827,7cyclictest3765516-21sh09:50:013
3709978993832,4cyclictest3717167-21kworker/u8:1+events_unbound07:32:382
3709978993819,6cyclictest3732689-21kworker/u8:2+events_unbound08:18:282
3709969993832,4cyclictest3801864-21kworker/u8:0+events_unbound11:43:220
3709969993822,4cyclictest131rcu_preempt09:38:530
3709981993728,6cyclictest0-21swapper/311:40:013
3709981993727,6cyclictest3796410-21cron11:19:593
3709981993725,7cyclictest0-21swapper/307:47:383
3709978993731,4cyclictest3817500-21kworker/u8:2+events_unbound12:25:212
3709978993725,8cyclictest0-21swapper/208:00:002
3709974993730,4cyclictest0-21swapper/112:00:011
3709974993713,11cyclictest131rcu_preempt07:37:401
3709969993730,4cyclictest3755285-21munin-plugin-st09:20:010
3709969993729,4cyclictest0-21swapper/012:25:010
3709969993722,9cyclictest131rcu_preempt07:37:210
3709981993628,4cyclictest0-21swapper/311:00:003
3709981993624,8cyclictest0-21swapper/307:10:223
3709978993629,4cyclictest3765481-21kworker/u8:0+events_unbound10:02:592
3709978993626,6cyclictest0-21swapper/212:20:002
3709974993627,7cyclictest3781220-21kworker/u8:0+events_unbound11:23:181
3709974993624,9cyclictest231ktimers/109:55:121
370997499361,4cyclictest131rcu_preempt11:10:121
3709969993628,6cyclictest3814045-21kworker/u8:0+events_unbound12:13:280
3709969993628,4cyclictest0-21swapper/011:20:250
3709969993627,7cyclictest3794388-21kworker/u8:2+events_unbound11:29:410
3709969993623,4cyclictest131rcu_preempt09:20:400
3709969993616,5cyclictest131rcu_preempt10:20:240
3709981993525,7cyclictest3727784-21sendmail08:00:013
3709978993529,4cyclictest3808554-21kworker/u8:1+events_unbound11:58:242
3709978993528,5cyclictest3749744-21kworker/u8:1+events_unbound09:05:202
3709978993527,4cyclictest0-21swapper/207:10:182
3709978993518,6cyclictest3806813-21kworker/u8:2+events_unbound12:09:252
3709974993526,6cyclictest3824357-21sendmail12:40:001
3709974993526,6cyclictest0-21swapper/109:20:001
3709974993525,6cyclictest0-21swapper/111:00:011
370996999357,21cyclictest11-21ksoftirqd/011:00:020
3709969993525,6cyclictest0-21swapper/010:25:240
3709969993521,5cyclictest131rcu_preempt11:54:130
3709969993519,5cyclictest131rcu_preempt11:00:220
3709969993519,5cyclictest131rcu_preempt08:35:190
3709969993518,4cyclictest131rcu_preempt11:05:560
3709969993518,4cyclictest131rcu_preempt07:33:020
3709981993428,4cyclictest3749744-21kworker/u8:1+events_unbound09:17:513
3709981993426,5cyclictest3715636-21munin-plugin-st07:25:013
3709981993426,5cyclictest0-21swapper/307:20:003
3709981993422,4cyclictest3754974-21kworker/u8:2+events_unbound09:20:363
3709978993428,4cyclictest3812091-21kworker/u8:1+events_unbound12:04:402
3709978993428,4cyclictest3775608-21kworker/u8:1+events_unbound10:24:412
3709978993426,5cyclictest0-21swapper/208:35:012
3709978993425,6cyclictest0-21swapper/211:05:162
3709974993428,4cyclictest3721213-21kworker/u8:2+events_unbound07:40:231
3709969993427,5cyclictest3723978-21kworker/u8:0+events_unbound08:14:400
3709969993425,4cyclictest131rcu_preempt10:43:060
3709969993423,7cyclictest0-21swapper/012:05:000
3709969993422,8cyclictest121ktimers/008:00:250
3709969993421,10cyclictest121ktimers/010:05:120
3709969993420,4cyclictest131rcu_preempt08:09:300
3709969993415,5cyclictest131rcu_preempt08:35:010
3709969993414,5cyclictest131rcu_preempt08:25:020
3709969993410,12cyclictest11-21ksoftirqd/007:15:040
3709981993326,5cyclictest3792670-21kworker/u8:1+events_unbound11:08:353
3709981993326,4cyclictest0-21swapper/312:15:133
3709981993326,4cyclictest0-21swapper/310:00:243
3709978993327,4cyclictest3814045-21kworker/u8:0+events_unbound12:10:362
3709978993327,4cyclictest3707936-21kworker/u8:0+events_unbound07:17:362
3709978993316,6cyclictest3781220-21kworker/u8:0+events_unbound10:54:122
3709978993310,10cyclictest32-21ksoftirqd/207:44:362
3709974993325,5cyclictest3724351-21cron07:50:021
3709974993325,4cyclictest0-21swapper/111:50:001
3709974993324,6cyclictest0-21swapper/111:30:011
3709974993324,6cyclictest0-21swapper/108:30:001
3709974993319,10cyclictest231ktimers/112:15:131
3709969993319,4cyclictest131rcu_preempt09:32:420
3709969993318,4cyclictest131rcu_preempt09:57:170
3709969993317,5cyclictest131rcu_preempt10:30:250
3709969993316,4cyclictest131rcu_preempt09:51:430
3709969993315,4cyclictest3743067-21kworker/u8:3-events_freezable_power_08:46:530
3709969993315,3cyclictest131rcu_preempt11:55:170
3709969993314,10cyclictest131rcu_preempt10:18:000
3709969993310,11cyclictest131rcu_preempt12:20:000
3709981993226,4cyclictest3781220-21kworker/u8:0+events_unbound11:28:203
3709981993226,4cyclictest3732689-21kworker/u8:2+events_unbound08:22:453
3709981993224,4cyclictest0-21swapper/311:55:003
3709981993224,4cyclictest0-21swapper/308:15:173
3709981993223,4cyclictest0-21swapper/312:00:003
3709978993225,4cyclictest3772342-21idleruntime-cro10:10:002
3709978993224,4cyclictest0-21swapper/208:35:182
3709978993223,5cyclictest0-21swapper/210:40:272
3709974993226,4cyclictest3801864-21kworker/u8:0+events_unbound11:50:421
3709974993224,4cyclictest0-21swapper/110:28:021
370996999327,15cyclictest11-21ksoftirqd/009:05:120
370996999326,4cyclictest121ktimers/011:15:000
3709969993225,5cyclictest3717167-21kworker/u8:1+events_unbound07:48:420
3709969993216,5cyclictest131rcu_preempt10:00:120
3709969993215,5cyclictest131rcu_preempt09:00:230
3709969993215,5cyclictest131rcu_preempt08:55:160
3709969993212,11cyclictest131rcu_preempt08:25:260
3709981993124,5cyclictest3730962-21kworker/u8:1+events_unbound08:10:203
3709981993124,4cyclictest3782601-21sendmail10:40:013
3709981993122,6cyclictest0-21swapper/310:50:003
3709981993114,3cyclictest0-21swapper/312:05:123
3709978993125,4cyclictest3754974-21kworker/u8:2+events_unbound09:17:362
3709978993123,4cyclictest0-21swapper/207:25:262
3709978993122,6cyclictest3758244-21unixbench_multi09:25:262
3709978993120,7cyclictest311ktimers/208:45:122
3709978993119,5cyclictest3781220-21kworker/u8:0+events_unbound11:27:362
370997899311,6cyclictest0-21swapper/207:50:092
3709974993124,5cyclictest3810347-21kworker/u8:0+events_unbound12:00:181
3709974993124,4cyclictest0-21swapper/107:25:261
3709974993123,4cyclictest0-21swapper/109:25:001
3709969993115,5cyclictest131rcu_preempt09:40:270
3709969993110,6cyclictest131rcu_preempt09:45:150
3709981993023,5cyclictest3779140-21kworker/u8:1+events_unbound10:43:093
3709981993021,6cyclictest0-21swapper/309:10:003
3709981993015,11cyclictest391ktimers/308:30:093
370998199301,10cyclictest3725279-21fgrep07:50:213
370998199300,13cyclictest0-21swapper/312:10:103
3709978993023,4cyclictest0-21swapper/208:50:172
3709978993023,4cyclictest0-21swapper/208:25:232
3709978993022,4cyclictest0-21swapper/210:30:252
3709978993018,9cyclictest3724365-21ls07:50:012
3709978993018,3cyclictest131rcu_preempt11:10:122
3709974993023,4cyclictest3801953-21cron11:35:001
3709974993023,4cyclictest0-21swapper/109:00:001
3709974993021,6cyclictest0-21swapper/109:40:011
3709974993019,7cyclictest0-21swapper/109:50:001
3709974993019,5cyclictest3815766-21kworker/u8:1+events_unbound12:20:241
3709974993018,8cyclictest0-21swapper/111:05:161
370996999309,10cyclictest0-21swapper/010:47:420
370996999307,12cyclictest131rcu_preempt08:15:150
3709969993011,4cyclictest131rcu_preempt08:40:250
370998199298,12cyclictest131rcu_preempt08:05:213
3709981992923,4cyclictest3767442-21kworker/u8:2+events_unbound10:07:593
3709981992922,3cyclictest0-21swapper/307:40:003
3709981992921,4cyclictest0-21swapper/309:55:163
3709981992920,6cyclictest3818813-21unixbench_singl12:20:253
3709981992918,4cyclictest3765481-21kworker/u8:0+events_unbound09:51:443
3709981992916,8cyclictest204-21dbus-daemon11:43:223
3709978992923,4cyclictest3801864-21kworker/u8:0+events_unbound11:48:242
3709978992923,4cyclictest3781220-21kworker/u8:0+events_unbound10:58:102
3709978992922,5cyclictest3707936-21kworker/u8:0+events_unbound07:24:432
3709978992917,6cyclictest3712430-21kworker/u8:3+events_unbound07:37:442
370997499298,7cyclictest131rcu_preempt10:45:211
3709974992922,5cyclictest3739390-21kworker/u8:2+events_unbound08:45:221
3709974992922,4cyclictest0-21swapper/108:30:221
3709974992921,5cyclictest0-21swapper/109:50:241
3709974992921,4cyclictest0-21swapper/112:05:251
3709974992917,4cyclictest131rcu_preempt08:50:391
3709981992815,9cyclictest391ktimers/311:45:133
370998199280,3cyclictest131rcu_preempt09:00:123
370997899289,11cyclictest32-21ksoftirqd/212:20:252
370997899284,13cyclictest3703519-21kworker/2:0-events12:30:362
3709978992820,5cyclictest0-21swapper/211:00:262
3709978992819,6cyclictest311ktimers/210:10:172
3709978992819,6cyclictest311ktimers/210:10:172
3709978992818,7cyclictest3774499-21tune2fs10:15:172
3709978992816,8cyclictest0-21swapper/211:15:252
3709978992815,9cyclictest311ktimers/211:40:132
3709978992813,9cyclictest131rcu_preempt09:05:012
3709978992810,8cyclictest131rcu_preempt08:10:112
370997499287,12cyclictest131rcu_preempt09:30:231
3709974992822,4cyclictest3707936-21kworker/u8:0+events_unbound07:22:361
3709974992821,4cyclictest0-21swapper/109:40:271
3709974992821,4cyclictest0-21swapper/109:10:011
3709974992816,9cyclictest3713917-21ls07:20:011
3709974992811,5cyclictest3732689-21kworker/u8:2+events_unbound08:24:081
3709974992811,4cyclictest131rcu_preempt11:40:121
370996999281,9cyclictest11-21ksoftirqd/012:30:120
370998199277,8cyclictest131rcu_preempt11:15:013
370998199277,11cyclictest131rcu_preempt07:40:233
3709981992719,5cyclictest0-21swapper/308:35:273
3709981992719,4cyclictest0-21swapper/312:25:243
3709981992713,11cyclictest3789973-21irqstats11:00:193
3709981992710,11cyclictest0-21swapper/308:43:563
3709978992721,3cyclictest0-21swapper/211:25:002
3709978992715,4cyclictest131rcu_preempt09:20:132
3709978992714,7cyclictest131rcu_preempt09:12:492
3709978992713,8cyclictest131rcu_preempt08:20:212
3709978992712,4cyclictest131rcu_preempt08:00:172
3709978992710,4cyclictest131rcu_preempt11:35:132
370997499276,12cyclictest131rcu_preempt12:25:221
370997499276,12cyclictest131rcu_preempt08:12:241
3709974992718,6cyclictest0-21swapper/110:35:251
3709974992716,7cyclictest0-21swapper/108:15:271
3709974992714,6cyclictest24-21ksoftirqd/107:15:021
3709981992620,4cyclictest3767442-21kworker/u8:2+events_unbound10:17:413
3709981992620,4cyclictest3767442-21kworker/u8:2+events_unbound10:12:413
3709981992620,4cyclictest3767442-21kworker/u8:2+events_unbound10:12:413
3709981992619,3cyclictest0-21swapper/312:00:243
3709981992618,4cyclictest3741108-21kworker/u8:0-xprtiod08:55:143
3709981992618,4cyclictest0-21swapper/312:35:253
3709981992618,4cyclictest0-21swapper/307:25:183
370998199261,14cyclictest0-21swapper/308:45:353
370997899267,10cyclictest131rcu_preempt09:55:132
3709978992611,4cyclictest131rcu_preempt11:30:112
370997499269,3cyclictest131rcu_preempt10:15:011
370997499269,3cyclictest131rcu_preempt10:15:001
370997499268,11cyclictest131rcu_preempt11:15:131
370997499261,9cyclictest131rcu_preempt08:02:501
3709974992619,5cyclictest3717167-21kworker/u8:1+events_unbound07:56:421
3709974992618,4cyclictest0-21swapper/111:00:261
3709974992617,6cyclictest3779140-21kworker/u8:1+events_unbound10:31:401
3709974992616,4cyclictest131rcu_preempt08:05:021
370998199256,7cyclictest131rcu_preempt12:30:213
3709981992515,6cyclictest3798164-21gpgv11:25:003
3709981992512,6cyclictest40-21ksoftirqd/310:35:013
3709981992512,5cyclictest3752099-21kworker/u8:3+events_unbound09:12:443
370997899258,11cyclictest0-21swapper/208:40:262
3709978992510,9cyclictest131rcu_preempt10:45:392
370997499259,3cyclictest131rcu_preempt09:30:011
370997499257,12cyclictest24-21ksoftirqd/110:25:011
370997499257,11cyclictest131rcu_preempt12:30:171
370997499257,11cyclictest131rcu_preempt08:40:281
3709974992517,5cyclictest0-21swapper/112:15:011
3709974992512,4cyclictest0-21swapper/110:53:101
370998199246,7cyclictest131rcu_preempt11:35:013
370998199246,7cyclictest131rcu_preempt08:00:193
3709981992414,6cyclictest0-21swapper/310:20:253
3709978992418,4cyclictest3756777-21kworker/u8:0+events_unbound09:40:542
3709974992417,4cyclictest0-21swapper/107:50:221
3709974992414,7cyclictest24-21ksoftirqd/110:00:161
370998199239,3cyclictest131rcu_preempt09:35:173
370998199236,7cyclictest131rcu_preempt09:30:203
3709981992317,3cyclictest0-21swapper/308:25:153
3709974992314,7cyclictest24-21ksoftirqd/110:15:211
370997499230,3cyclictest3717557-21apt-get07:30:131
370998199225,3cyclictest131rcu_preempt09:25:163
370998199215,3cyclictest131rcu_preempt10:52:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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