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2026-04-22 - 01:45

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 Tue Apr 21, 2026 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3802412995240,8cyclictest3828271-21grep08:20:240
3802425994739,5cyclictest3878428-21ls10:50:003
3802425994735,9cyclictest391ktimers/308:30:143
3802420994637,5cyclictest0-21swapper/209:10:002
3802412994534,7cyclictest0-21swapper/011:20:010
3802412994534,6cyclictest0-21swapper/011:25:260
3802425994437,4cyclictest3881819-21apt-get11:00:003
3802420994435,7cyclictest3874829-21kworker/u8:1+events_unbound10:44:582
3802420994331,9cyclictest311ktimers/208:10:112
3802412994337,4cyclictest3840677-21sh09:00:000
3802412994335,6cyclictest3877144-21fschecks_time10:45:160
3802417994229,9cyclictest3833888-21cat08:40:001
3802420994130,7cyclictest3893553-21grep11:30:242
3802420994130,7cyclictest3813172-21grep07:40:012
3802420994129,8cyclictest3865994-21grep10:10:242
3802420994117,12cyclictest0-21swapper/211:24:322
3802412994132,5cyclictest0-21swapper/012:20:000
3802412994132,5cyclictest0-21swapper/012:20:000
3802412994121,17cyclictest3854323-21sh09:40:000
3802420994027,4cyclictest131rcu_preempt12:19:292
3802420994027,4cyclictest131rcu_preempt12:19:282
3802417994032,5cyclictest3806358-21idleruntime-cro07:20:011
3802412994033,4cyclictest3886699-21unixbench_multi11:10:240
3802412994033,4cyclictest3885450-21latency_hist11:10:000
3802420993931,6cyclictest3871402-21kworker/u8:2+events_unbound10:39:582
3802420993929,5cyclictest0-21swapper/207:55:022
3802420993928,7cyclictest0-21swapper/212:05:002
3802420993917,11cyclictest0-21swapper/209:46:342
3802417993931,4cyclictest0-21swapper/110:19:521
3802412993928,7cyclictest0-21swapper/012:00:110
3802425993829,4cyclictest0-21swapper/307:15:023
3802420993832,4cyclictest3859291-21kworker/u8:3+events_unbound10:04:532
3802420993821,5cyclictest3859291-21kworker/u8:3-events_freezable_power_10:34:102
3802417993830,4cyclictest0-21swapper/107:29:271
3802417993829,5cyclictest0-21swapper/111:30:151
3802417993829,5cyclictest0-21swapper/108:55:261
3802417993827,7cyclictest3857268-21grep09:45:261
3802412993827,8cyclictest3813168-21cron07:40:020
3802412993824,10cyclictest121ktimers/012:35:150
3802425993726,7cyclictest3806366-21sendmail07:20:013
3802420993727,4cyclictest0-21swapper/209:05:002
3802420993725,9cyclictest311ktimers/212:05:122
3802420993724,9cyclictest3911028-21sh12:24:592
3802420993724,9cyclictest311ktimers/210:20:122
3802420993722,4cyclictest131rcu_preempt12:10:162
3802420993628,4cyclictest3820215-21sendmail08:00:012
3802420993620,5cyclictest131rcu_preempt11:13:052
3802420993618,10cyclictest131rcu_preempt11:00:242
3802420993618,10cyclictest131rcu_preempt11:00:232
3802420993615,10cyclictest0-21swapper/211:06:082
3802417993625,7cyclictest0-21swapper/108:15:251
3802412993629,4cyclictest0-21swapper/009:50:250
3802412993627,6cyclictest3914027-21unixbench_singl12:30:260
3802412993626,6cyclictest0-21swapper/009:45:250
3802425993528,4cyclictest3829977-21unixbench_multi08:25:263
3802420993529,4cyclictest3826962-21kworker/u8:2+events_unbound08:19:362
3802420993527,4cyclictest0-21swapper/210:50:262
3802420993527,4cyclictest0-21swapper/208:35:002
3802420993520,4cyclictest131rcu_preempt07:45:582
3802420993520,3cyclictest131rcu_preempt07:24:322
3802420993519,4cyclictest131rcu_preempt11:49:272
3802420993517,10cyclictest131rcu_preempt12:28:302
3802420993516,5cyclictest131rcu_preempt09:10:172
3802420993515,12cyclictest131rcu_preempt08:25:152
3802412993527,5cyclictest3905915-21ls12:10:010
3802412993525,6cyclictest0-21swapper/010:00:250
3802420993428,4cyclictest3898732-21kworker/u8:1+events_unbound11:53:422
3802420993427,5cyclictest3850577-21kworker/u8:2+events_unbound09:36:412
3802420993426,4cyclictest0-21swapper/211:15:152
3802420993423,7cyclictest3895244-21grep11:35:262
3802420993421,5cyclictest131rcu_preempt08:45:222
3802420993421,5cyclictest131rcu_preempt08:45:212
3802417993427,4cyclictest0-21swapper/109:50:261
3802417993423,8cyclictest3898697-21grep11:45:251
3802412993426,5cyclictest0-21swapper/010:10:000
3802412993423,6cyclictest0-21swapper/012:25:260
380242599338,4cyclictest3904206-21apt12:05:003
3802425993326,4cyclictest0-21swapper/308:45:163
3802425993326,4cyclictest0-21swapper/308:45:153
3802425993323,6cyclictest0-21swapper/310:10:003
3802425993323,6cyclictest0-21swapper/308:55:003
3802420993327,4cyclictest3859291-21kworker/u8:3+events_unbound10:28:422
3802420993322,4cyclictest131rcu_preempt12:30:272
3802420993321,4cyclictest131rcu_preempt10:07:442
3802420993321,4cyclictest131rcu_preempt09:54:092
3802420993320,4cyclictest131rcu_preempt07:31:222
3802420993319,5cyclictest131rcu_preempt08:56:012
3802420993319,4cyclictest131rcu_preempt09:18:422
3802420993318,4cyclictest131rcu_preempt11:25:092
3802420993316,5cyclictest3854156-21kworker/u8:0-events_unbound10:19:212
3802420993315,5cyclictest131rcu_preempt08:20:242
3802420993315,4cyclictest0-21swapper/207:27:092
3802420993314,11cyclictest131rcu_preempt11:55:262
3802417993326,4cyclictest0-21swapper/111:15:251
3802417993324,5cyclictest0-21swapper/109:09:421
3802417993323,6cyclictest3907183-21head12:10:241
3802417993323,6cyclictest0-21swapper/112:20:001
3802417993323,6cyclictest0-21swapper/112:20:001
3802412993325,5cyclictest3823610-21cron08:10:010
3802412993324,7cyclictest3899515-21fschecks_time11:50:160
3802425993224,4cyclictest0-21swapper/309:55:173
3802425993224,4cyclictest0-21swapper/309:55:163
3802425993219,10cyclictest391ktimers/307:40:153
3802420993219,3cyclictest131rcu_preempt11:43:082
3802420993218,4cyclictest131rcu_preempt09:28:292
3802420993217,4cyclictest131rcu_preempt12:38:082
3802420993214,4cyclictest131rcu_preempt08:37:452
3802420993213,12cyclictest131rcu_preempt07:15:262
3802420993212,5cyclictest131rcu_preempt08:05:192
3802420993211,13cyclictest32-21ksoftirqd/209:55:162
3802420993211,13cyclictest32-21ksoftirqd/209:55:162
3802420993211,10cyclictest131rcu_preempt08:42:072
3802420993210,15cyclictest32-21ksoftirqd/211:00:002
3802417993225,5cyclictest3874829-21kworker/u8:1+events_unbound10:48:521
3802417993225,5cyclictest3838843-21kworker/u8:0+events_unbound08:54:401
3802412993225,4cyclictest3850497-21grep09:25:250
3802412993225,3cyclictest0-21swapper/007:30:010
3802412993224,5cyclictest3806339-21cron07:20:010
3802412993223,5cyclictest0-21swapper/010:30:250
3802425993124,4cyclictest3902497-21munin-plugin-st12:00:003
3802425993123,4cyclictest0-21swapper/307:55:163
3802425993119,7cyclictest3853905-21grep09:35:263
3802420993124,4cyclictest0-21swapper/208:50:252
3802420993113,9cyclictest131rcu_preempt10:45:512
3802420993113,4cyclictest131rcu_preempt09:32:472
3802417993121,7cyclictest3822354-21tune2fs08:05:151
3802417993120,7cyclictest0-21swapper/109:19:451
3802412993123,4cyclictest0-21swapper/008:30:270
3802412993123,4cyclictest0-21swapper/007:55:250
3802412993120,7cyclictest121ktimers/008:10:120
3802412993119,7cyclictest0-21swapper/010:10:240
3802425993020,6cyclictest0-21swapper/309:45:003
3802420993022,6cyclictest3843741-21kworker/u8:3+events_unbound09:23:432
3802420993013,4cyclictest131rcu_preempt07:40:502
3802420993010,12cyclictest32-21ksoftirqd/208:00:202
3802417993022,4cyclictest0-21swapper/111:35:181
3802417993019,7cyclictest3803616-21grep07:10:251
3802412993021,5cyclictest0-21swapper/011:00:010
3802425992923,4cyclictest3898732-21kworker/u8:1+events_unbound12:30:153
3802425992921,5cyclictest3818305-21kworker/u8:1+events_unbound07:55:013
3802425992920,6cyclictest0-21swapper/308:25:003
3802425992919,6cyclictest0-21swapper/312:10:253
3802425992918,6cyclictest0-21swapper/311:50:263
3802417992923,4cyclictest3890380-21kworker/u8:2+events_unbound11:50:101
3802417992922,3cyclictest0-21swapper/112:35:161
3802417992921,4cyclictest0-21swapper/112:00:001
3802417992919,6cyclictest0-21swapper/108:45:001
3802412992922,5cyclictest3816568-21kworker/u8:2+events_unbound07:49:300
3802412992921,5cyclictest0-21swapper/010:20:260
3802412992920,6cyclictest3847520-21munin-run09:20:010
3802425992820,4cyclictest0-21swapper/312:05:153
3802425992820,4cyclictest0-21swapper/307:20:253
3802425992817,7cyclictest0-21swapper/311:20:263
3802425992815,9cyclictest3802405-21cyclictest08:09:323
380241799283,4cyclictest131rcu_preempt09:55:121
380241799283,4cyclictest131rcu_preempt09:55:121
3802417992821,5cyclictest3816568-21kworker/u8:2+events_unbound07:49:281
3802417992820,4cyclictest0-21swapper/108:05:011
3802417992819,5cyclictest0-21swapper/108:25:261
3802412992821,4cyclictest0-21swapper/007:35:010
3802412992819,5cyclictest0-21swapper/010:50:170
3802412992818,8cyclictest121ktimers/009:20:120
3802412992818,6cyclictest0-21swapper/009:00:260
3802412992816,9cyclictest3804448-21sed07:15:030
3802425992721,3cyclictest0-21swapper/311:10:243
3802425992721,3cyclictest0-21swapper/311:05:163
3802425992720,4cyclictest3863079-21audit_send_reply10:05:003
3802425992719,4cyclictest0-21swapper/312:25:263
3802425992719,4cyclictest0-21swapper/309:35:003
3802425992719,4cyclictest0-21swapper/308:10:263
3802425992718,6cyclictest0-21swapper/312:40:013
3802425992718,6cyclictest0-21swapper/310:20:013
3802425992717,7cyclictest3907844-21apt-get12:15:113
3802425992717,7cyclictest3907844-21apt-get12:15:113
3802425992717,6cyclictest0-21swapper/309:00:003
3802425992717,5cyclictest3833378-21grep08:35:263
3802417992721,4cyclictest3806025-21kworker/u8:0+events_unbound07:54:291
3802417992719,6cyclictest53-21kcompactd010:20:211
3802417992718,6cyclictest0-21swapper/111:45:001
3802417992710,5cyclictest131rcu_preempt10:10:001
3802412992721,3cyclictest0-21swapper/012:00:000
3802412992720,4cyclictest13850irq/36-mmc108:40:000
3802412992719,5cyclictest0-21swapper/010:40:000
3802412992717,6cyclictest0-21swapper/008:55:000
380241299271,23cyclictest3907494-21chrt12:13:430
3802425992617,5cyclictest3869900-21idleruntime-cro10:25:003
3802425992616,6cyclictest0-21swapper/308:40:273
3802417992620,3cyclictest0-21swapper/112:25:001
3802417992619,3cyclictest0-21swapper/108:30:181
3802417992618,5cyclictest3836353-21ntpq08:45:201
3802417992618,5cyclictest3836353-21ntpq08:45:201
3802412992619,4cyclictest0-21swapper/009:15:000
3802412992618,5cyclictest0-21swapper/011:40:250
3802412992617,7cyclictest121ktimers/011:00:050
3802412992617,7cyclictest121ktimers/011:00:050
3802412992617,6cyclictest0-21swapper/011:50:000
3802425992519,3cyclictest0-21swapper/312:20:223
3802425992518,4cyclictest0-21swapper/308:00:213
3802425992518,3cyclictest0-21swapper/310:40:013
380242599251,6cyclictest3847507-21sendmail09:20:013
3802425992515,6cyclictest0-21swapper/307:45:263
3802417992518,4cyclictest3856048-21sh09:45:001
3802417992518,4cyclictest0-21swapper/112:30:161
3802417992517,5cyclictest0-21swapper/107:55:261
3802417992516,5cyclictest0-21swapper/107:45:011
3802417992515,7cyclictest0-21swapper/108:20:171
3802417992514,9cyclictest24-21ksoftirqd/109:35:121
3802417992514,8cyclictest0-21swapper/109:15:001
3802412992518,3cyclictest0-21swapper/012:20:170
3802425992418,3cyclictest0-21swapper/310:25:243
3802425992418,3cyclictest0-21swapper/307:39:263
3802425992418,2cyclictest0-21swapper/309:25:233
3802425992416,4cyclictest3872044-21fschecks_time10:30:163
3802425992416,4cyclictest0-21swapper/310:10:153
3802425992416,4cyclictest0-21swapper/309:45:253
3802425992415,7cyclictest3883380-21kworker/u8:1+events_unbound11:25:053
3802425992414,6cyclictest0-21swapper/309:15:013
3802417992418,3cyclictest0-21swapper/111:00:001
3802417992417,5cyclictest3843741-21kworker/u8:3+events_unbound09:20:191
3802417992417,4cyclictest0-21swapper/111:15:001
3802417992416,5cyclictest0-21swapper/112:25:181
3802417992414,6cyclictest0-21swapper/111:05:241
3802417992414,6cyclictest0-21swapper/109:00:241
3802412992418,3cyclictest0-21swapper/007:20:240
3802412992417,3cyclictest0-21swapper/011:34:030
3802412992413,7cyclictest0-21swapper/007:40:280
380241299241,19cyclictest0-21swapper/011:38:590
3802425992317,3cyclictest0-21swapper/311:40:003
3802425992317,3cyclictest0-21swapper/309:50:153
3802425992316,4cyclictest3887917-21ntpq11:15:213
3802425992313,6cyclictest0-21swapper/309:05:253
3802425992312,8cyclictest3847758-21apt-get09:20:123
3802417992319,2cyclictest0-21swapper/110:30:141
3802417992316,4cyclictest0-21swapper/107:35:171
3802417992313,6cyclictest0-21swapper/110:10:251
3802412992317,4cyclictest3861351-21cron10:00:010
3802412992317,4cyclictest3861351-21cron10:00:010
3802412992316,4cyclictest645-21runrttasks10:15:200
3802412992316,3cyclictest3835957-21fschecks_count08:45:140
3802412992316,3cyclictest3835957-21fschecks_count08:45:140
380241299231,18cyclictest0-21swapper/011:22:300
380241299231,18cyclictest0-21swapper/008:19:020
380241299230,19cyclictest0-21swapper/010:26:580
3802425992216,4cyclictest3808297-21/usr/sbin/munin07:25:233
3802425992216,3cyclictest0-21swapper/311:40:223
3802425992216,3cyclictest0-21swapper/310:50:213
3802425992216,3cyclictest0-21swapper/307:30:223
3802425992212,7cyclictest3875506-21basename10:40:183
380241799222,4cyclictest0-21swapper/111:26:291
3802417992216,3cyclictest0-21swapper/111:20:201
3802417992216,3cyclictest0-21swapper/110:40:251
3802417992216,3cyclictest0-21swapper/107:30:251
3802417992214,5cyclictest231ktimers/112:00:121
3802412992215,5cyclictest0-21swapper/008:00:250
380241299221,19cyclictest0-21swapper/010:44:390
380241299221,19cyclictest0-21swapper/007:53:290
380241299220,20cyclictest0-21swapper/009:31:120
380241299220,20cyclictest0-21swapper/008:25:200
380241299220,18cyclictest0-21swapper/009:06:530
3802425992116,3cyclictest645-21runrttasks11:45:253
3802425992113,5cyclictest0-21swapper/311:05:003
3802417992114,5cyclictest231ktimers/107:20:161
3802417992114,4cyclictest3850920-21sh09:30:011
3802417992114,3cyclictest0-21swapper/112:05:131
3802417992110,8cyclictest3873657-21diskstats10:35:171
3802412992115,4cyclictest3855914-21kworker/u8:2+events_unbound09:44:500
3802425992014,3cyclictest0-21swapper/308:15:163
3802417992013,4cyclictest231ktimers/110:50:201
380241799201,14cyclictest3870272-21cut10:25:161
380241799201,12cyclictest0-21swapper/109:34:441
3802425991914,3cyclictest0-21swapper/311:30:193
3802425991912,3cyclictest0-21swapper/311:00:153
3802417991913,4cyclictest3825386-21latency_hist08:15:011
380241799191,10cyclictest3862733-21cron10:01:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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