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2026-01-08 - 18:39

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 Thu Jan 08, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3057358995445,5cyclictest3166235-21unixbench_multi12:30:243
3057345995340,9cyclictest121ktimers/008:30:130
3057354994720,23cyclictest0-21swapper/211:05:272
3057358994638,5cyclictest3099782-21cron09:15:013
3057358994534,7cyclictest3145986-21awk11:35:003
3057354994418,3cyclictest0-21swapper/212:05:202
3057354994418,22cyclictest3107780-21seq09:35:242
3057354994313,7cyclictest3149478-21grep11:45:012
3057350994332,7cyclictest3136946-21grep11:05:261
3057358994235,4cyclictest0-21swapper/309:25:003
3057358994234,4cyclictest3113059-21unixbench_singl09:50:253
3057354994219,8cyclictest3126051-21grep10:30:232
3057354994214,4cyclictest0-21swapper/212:05:002
3057354994213,2cyclictest0-21swapper/208:55:252
3057345994235,4cyclictest3133373-21munin-plugin-st10:55:010
3057345994229,9cyclictest121ktimers/008:20:120
305735899412,4cyclictest131rcu_preempt12:25:113
3057354994134,4cyclictest3098069-21cron09:10:002
3057354994114,4cyclictest3128401-21latency_hist10:40:022
3057358994033,4cyclictest3077347-21munin-plugin-st08:10:013
3057354994029,8cyclictest438-21cron12:15:002
3057354994013,5cyclictest0-21swapper/207:45:002
3057354993914,3cyclictest0-21swapper/211:00:212
3057345993931,5cyclictest3156879-21grep12:05:140
3057358993824,9cyclictest0-21swapper/309:15:253
305735099385,5cyclictest131rcu_preempt12:30:111
3057350993832,4cyclictest3135676-21kworker/u8:1+events_unbound11:16:191
3057350993829,4cyclictest0-21swapper/107:15:001
3057358993730,5cyclictest3130175-21kworker/u8:0+events_unbound10:51:163
3057354993730,4cyclictest0-21swapper/211:30:002
3057350993728,5cyclictest0-21swapper/109:10:001
3057350993727,5cyclictest3131664-21munin-plugin-st10:50:011
3057350993726,8cyclictest231ktimers/107:35:111
3057358993628,4cyclictest0-21swapper/308:35:153
3057345993629,4cyclictest0-21swapper/009:15:000
3057345993626,7cyclictest3138646-21grep11:10:230
3057345993626,6cyclictest3057960-21kworker/u8:3+events_unbound07:15:200
3057358993527,4cyclictest0-21swapper/310:00:003
3057358993526,6cyclictest3094211-21unixbench_singl08:55:263
3057354993513,6cyclictest3083777-21grep08:25:262
3057350993527,4cyclictest0-21swapper/108:00:011
305735099351,4cyclictest131rcu_preempt11:35:131
3057345993527,4cyclictest0-21swapper/012:20:000
3057358993428,4cyclictest3149400-21cron11:45:003
3057358993424,7cyclictest3071561-21sh07:50:013
3057350993426,4cyclictest0-21swapper/109:40:251
3057350993425,6cyclictest3094638-21cron09:00:011
3057350993425,5cyclictest3101060-21grep09:15:251
3057345993424,7cyclictest3147692-21sendmail11:40:000
3057358993325,5cyclictest3096377-21idleruntime-cro09:05:003
3057358993325,4cyclictest0-21swapper/310:31:123
3057358993323,7cyclictest3156035-21unixbench_singl12:00:243
3057358993322,8cyclictest3074509-21grep07:55:243
305735899331,4cyclictest131rcu_preempt08:00:153
3057354993325,4cyclictest0-21swapper/209:10:162
3057354993325,4cyclictest0-21swapper/208:50:252
3057354993323,6cyclictest0-21swapper/212:30:242
3057354993320,5cyclictest0-21swapper/207:45:252
305735099332,4cyclictest131rcu_preempt10:20:111
3057350993324,7cyclictest3120085-21fschecks_time10:15:151
3057345993322,7cyclictest0-21swapper/012:35:260
3057345993319,11cyclictest121ktimers/007:35:100
3057358993226,4cyclictest3156100-21kworker/u8:2+events_unbound12:21:423
3057358993223,5cyclictest0-21swapper/311:45:253
3057358993222,6cyclictest3120904-21grep10:15:233
305735899321,11cyclictest0-21swapper/308:30:133
3057354993224,4cyclictest0-21swapper/209:20:012
3057350993224,4cyclictest0-21swapper/112:35:251
3057350993223,6cyclictest0-21swapper/110:10:251
3057350993221,8cyclictest3087606-21sendmail08:40:001
3057345993222,7cyclictest3107879-21grep09:35:240
305735899315,4cyclictest131rcu_preempt11:20:133
305735899315,4cyclictest131rcu_preempt11:20:123
3057358993122,6cyclictest3124836-21cat10:30:013
3057358993122,6cyclictest3058976-21sh07:15:003
3057358993120,7cyclictest3167975-21grep12:35:263
3057354993125,4cyclictest3056113-21kworker/u8:2+events_unbound07:24:432
3057354993125,4cyclictest3056113-21kworker/u8:2+events_unbound07:24:432
3057354993123,4cyclictest0-21swapper/207:10:262
3057354993122,5cyclictest0-21swapper/211:35:252
3057354993120,7cyclictest3057339-21cyclictest07:20:002
3057350993125,4cyclictest3138984-21kworker/u8:2+events_unbound11:26:221
3057350993123,4cyclictest0-21swapper/111:40:241
3057350993123,4cyclictest0-21swapper/109:20:151
3057350993122,5cyclictest3145539-21grep11:30:231
3057350993120,7cyclictest3082049-21grep08:20:251
3057345993124,4cyclictest68-21kswapd010:15:080
3057345993123,4cyclictest0-21swapper/008:05:460
3057345993122,6cyclictest0-21swapper/007:45:260
3057345993121,6cyclictest0-21swapper/009:45:240
305735899305,4cyclictest131rcu_preempt09:45:113
3057358993023,5cyclictest3060935-21kworker/u8:0+events_unbound07:18:483
3057358993023,4cyclictest0-21swapper/308:50:253
3057358993022,4cyclictest0-21swapper/311:00:113
3057358993022,4cyclictest0-21swapper/308:15:273
305735899301,8cyclictest0-21swapper/309:35:133
3057354993022,4cyclictest0-21swapper/210:05:252
3057350993024,4cyclictest3068028-21kworker/u8:1+events_unbound07:45:341
3057350993023,5cyclictest3113769-21kworker/u8:0+events_unbound10:00:151
3057350993021,6cyclictest3155986-21grep12:00:251
3057345993024,4cyclictest3056113-21kworker/u8:2+events_unbound07:10:210
3057345993023,5cyclictest3156100-21kworker/u8:2+events_unbound12:01:280
3057345993019,7cyclictest0-21swapper/007:20:270
3057345993019,7cyclictest0-21swapper/007:20:260
3057358992923,4cyclictest3101106-21kworker/u8:2+events_unbound09:32:433
3057358992922,5cyclictest3128140-21kworker/u8:2+events_unbound10:40:303
305735899291,3cyclictest131rcu_preempt10:20:113
3057354992922,4cyclictest0-21swapper/208:20:012
3057354992920,5cyclictest0-21swapper/209:25:242
3057354992920,5cyclictest0-21swapper/209:25:242
3057350992922,5cyclictest3101106-21kworker/u8:2+events_unbound09:38:471
3057350992922,4cyclictest3072715-21timerwakeupswit07:50:241
3057350992919,7cyclictest3138659-21grep11:10:231
3057350992912,10cyclictest131rcu_preempt07:45:011
3057358992820,5cyclictest0-21swapper/312:10:253
3057358992817,7cyclictest3078613-21grep08:10:213
3057354992820,4cyclictest0-21swapper/207:30:262
3057354992819,4cyclictest0-21swapper/212:20:242
3057354992816,8cyclictest3081161-21grep08:20:152
3057350992820,4cyclictest0-21swapper/111:45:241
3057345992821,4cyclictest13850irq/36-mmc110:00:000
3057345992819,7cyclictest3080771-21sendmail08:20:010
3057345992817,7cyclictest3150706-21grep11:45:240
3057345992815,9cyclictest3113065-21grep09:50:250
3057358992720,5cyclictest3130175-21kworker/u8:0+events_unbound10:45:093
3057358992720,4cyclictest0-21swapper/307:40:003
305735899271,3cyclictest3068385-21apt-get07:40:123
3057354992720,4cyclictest0-21swapper/207:55:432
3057354992719,4cyclictest0-21swapper/208:40:262
3057350992721,4cyclictest3132044-21kworker/u8:2+events_unbound10:53:311
3057350992721,3cyclictest0-21swapper/110:30:181
3057350992721,3cyclictest0-21swapper/110:10:011
3057350992720,5cyclictest3157833-21kworker/u8:0+events_unbound12:16:311
3057350992720,5cyclictest3080645-21kworker/u8:2+events_unbound08:45:591
3057350992720,4cyclictest0-21swapper/108:10:211
3057350992719,4cyclictest0-21swapper/107:20:211
3057350992719,4cyclictest0-21swapper/107:20:201
3057350992718,5cyclictest0-21swapper/111:00:001
3057350992717,7cyclictest3065361-21grep07:30:191
3057350992716,6cyclictest0-21swapper/107:25:161
3057350992716,6cyclictest0-21swapper/107:25:161
3057350992713,4cyclictest3110029-21kworker/u8:0+events_unbound09:48:021
3057345992721,3cyclictest3151744-21fschecks_time11:50:140
3057345992720,4cyclictest0-21swapper/008:50:590
3057345992720,3cyclictest0-21swapper/009:25:250
3057345992720,3cyclictest0-21swapper/009:25:250
3057345992719,6cyclictest121ktimers/012:25:120
3057345992719,4cyclictest0-21swapper/007:35:000
305735899268,8cyclictest40-21ksoftirqd/311:05:173
3057358992620,3cyclictest0-21swapper/310:10:253
3057358992619,4cyclictest3081215-21fschecks_time08:20:153
3057358992616,7cyclictest3161630-21wc12:20:003
3057358992615,4cyclictest3088056-21kworker/u8:3+events_unbound08:41:033
3057358992611,10cyclictest391ktimers/307:20:123
3057358992611,10cyclictest391ktimers/307:20:123
3057354992619,4cyclictest3118991-21tail10:10:262
3057354992617,4cyclictest0-21swapper/209:41:072
3057354992614,8cyclictest3164601-21grep12:25:242
3057350992619,5cyclictest3101106-21kworker/u8:2+events_unbound09:32:411
3057350992619,3cyclictest0-21swapper/108:30:011
3057350992617,6cyclictest3098472-21cut09:10:161
3057350992617,6cyclictest0-21swapper/111:25:001
3057350992617,6cyclictest0-21swapper/111:25:001
3057350992616,6cyclictest0-21swapper/110:00:001
305734599261,22cyclictest3072313-21grep07:50:190
3057345992611,13cyclictest3134065-21latency_hist11:00:000
305734599260,23cyclictest0-21swapper/012:10:110
3057358992520,3cyclictest380-21ntpd10:00:113
3057358992519,4cyclictest3147371-21kworker/u8:0+events_unbound11:57:013
3057358992519,4cyclictest3142468-21kworker/u8:1+events_unbound11:36:323
3057358992519,3cyclictest0-21swapper/309:40:203
3057358992518,5cyclictest3096294-21kworker/u8:1+events_unbound09:05:203
3057354992516,5cyclictest3095944-21grep09:00:252
3057354992514,7cyclictest0-21swapper/208:05:012
305735099253,14cyclictest3157426-21cat12:05:221
3057350992519,3cyclictest0-21swapper/108:55:001
3057350992516,6cyclictest0-21swapper/108:40:131
3057345992518,4cyclictest3087596-21sh08:40:000
3057345992518,3cyclictest0-21swapper/010:10:000
3057345992517,4cyclictest0-21swapper/009:40:250
3057345992516,6cyclictest3083775-21unixbench_singl08:25:250
3057345992516,6cyclictest0-21swapper/010:40:000
3057345992515,7cyclictest3162463-21grep12:20:200
3057345992515,6cyclictest0-21swapper/008:45:240
305734599251,21cyclictest3119067-21users10:10:260
305734599251,20cyclictest0-21swapper/010:26:430
305735899249,5cyclictest3096294-21kworker/u8:1+events_unbound09:26:053
305735899249,5cyclictest3096294-21kworker/u8:1+events_unbound09:26:053
3057358992417,5cyclictest3142468-21kworker/u8:1+events_unbound11:25:533
3057358992413,7cyclictest0-21swapper/307:25:223
3057358992413,7cyclictest0-21swapper/307:25:213
3057354992418,3cyclictest0-21swapper/208:30:262
3057354992417,4cyclictest0-21swapper/212:00:002
3057354992414,5cyclictest0-21swapper/210:55:002
3057354992413,7cyclictest311ktimers/211:55:012
3057354992413,7cyclictest1-21systemd10:46:142
305735099244,4cyclictest131rcu_preempt08:30:131
3057350992418,4cyclictest3096294-21kworker/u8:1+events_unbound09:26:231
3057350992418,4cyclictest3096294-21kworker/u8:1+events_unbound09:26:231
3057350992418,3cyclictest0-21swapper/109:00:131
3057350992417,5cyclictest3130175-21kworker/u8:0+events_unbound11:01:031
3057350992416,5cyclictest0-21swapper/110:25:161
3057350992414,7cyclictest0-21swapper/111:50:141
305735099241,12cyclictest0-21swapper/110:37:001
3057345992418,3cyclictest0-21swapper/011:45:000
3057345992417,3cyclictest0-21swapper/011:08:490
3057345992417,3cyclictest0-21swapper/010:45:130
305734599241,5cyclictest3094896-21apt-get09:00:120
3057345992415,6cyclictest3089107-21grep08:40:270
305734599241,19cyclictest0-21swapper/011:28:270
305734599241,19cyclictest0-21swapper/007:40:050
305734599241,19cyclictest0-21swapper/007:29:490
305734599241,19cyclictest0-21swapper/007:29:490
305734599241,11cyclictest3153831-21ntp_states11:55:190
305734599240,20cyclictest0-21swapper/009:34:410
3057358992317,3cyclictest0-21swapper/311:50:233
3057358992316,5cyclictest3113769-21kworker/u8:0+events_unbound10:05:263
3057354992317,3cyclictest0-21swapper/210:30:002
3057354992317,3cyclictest0-21swapper/208:35:242
3057354992315,6cyclictest3167923-21cat12:35:242
305735099235,12cyclictest231ktimers/112:25:111
3057350992317,4cyclictest3157833-21kworker/u8:0+events_unbound12:24:061
3057350992317,3cyclictest0-21swapper/108:15:211
305735099231,3cyclictest131rcu_preempt08:00:201
3057350992312,8cyclictest131rcu_preempt11:55:211
3057350992312,7cyclictest0-21swapper/109:50:261
305735099231,11cyclictest0-21swapper/112:11:281
3057345992317,4cyclictest3132044-21kworker/u8:2+events_unbound11:01:180
3057345992317,3cyclictest0-21swapper/008:10:130
3057345992317,2cyclictest0-21swapper/010:40:290
3057345992316,5cyclictest11-21ksoftirqd/009:15:110
3057345992316,4cyclictest0-21swapper/008:00:010
3057345992316,3cyclictest0-21swapper/012:30:280
3057345992315,5cyclictest11-21ksoftirqd/009:05:120
305734599231,18cyclictest0-21swapper/011:19:200
305734599231,18cyclictest0-21swapper/010:21:220
305734599230,19cyclictest0-21swapper/010:04:450
3057358992216,3cyclictest0-21swapper/312:05:143
3057358992216,3cyclictest0-21swapper/310:35:243
3057358992216,3cyclictest0-21swapper/307:50:103
3057358992215,5cyclictest3130175-21kworker/u8:0+events_unbound11:11:553
3057358992215,4cyclictest3065138-21fschecks_time07:30:173
3057358992214,4cyclictest0-21swapper/311:00:013
3057358992213,7cyclictest3080645-21kworker/u8:2+events_unbound08:28:373
3057354992216,3cyclictest0-21swapper/211:20:242
3057354992216,3cyclictest0-21swapper/211:20:242
3057354992216,3cyclictest0-21swapper/210:00:132
3057354992216,3cyclictest0-21swapper/208:45:232
3057354992215,4cyclictest3151137-21idleruntime-cro11:50:002
3057354992215,3cyclictest0-21swapper/211:10:142
3057354992215,3cyclictest0-21swapper/210:15:222
3057354992214,5cyclictest311ktimers/210:45:002
3057350992215,4cyclictest3126409-21kworker/u8:1+events_unbound10:41:331
3057350992211,8cyclictest3077436-21date08:10:021
3057345992217,3cyclictest13850irq/36-mmc110:35:000
3057345992214,4cyclictest0-21swapper/008:55:170
3057358992114,4cyclictest391ktimers/311:19:423
3057358992113,6cyclictest3088056-21kworker/u8:3+events_unbound08:45:583
3057354992116,3cyclictest0-21swapper/207:50:122
3057354992115,3cyclictest3064722-21sh07:30:012
3057354992115,3cyclictest3064722-21sh07:30:002
3057354992115,3cyclictest0-21swapper/209:50:252
3057354992115,3cyclictest0-21swapper/209:30:242
3057354992112,6cyclictest0-21swapper/211:15:152
3057354992112,6cyclictest0-21swapper/207:40:002
3057350992115,3cyclictest0-21swapper/107:15:031
305734599212,4cyclictest3144657-21tune2fs11:30:130
305734599211,7cyclictest3141077-21date11:20:020
305734599211,7cyclictest3141077-21date11:20:010
3057345992113,4cyclictest0-21swapper/008:00:280
3057354992014,4cyclictest311ktimers/208:15:012
3057354992013,5cyclictest311ktimers/212:15:122
3057354992013,5cyclictest311ktimers/211:30:112
3057354992013,5cyclictest311ktimers/209:45:182
3057354992013,4cyclictest311ktimers/210:58:472
3057354992012,6cyclictest311ktimers/210:20:112
3057354992012,5cyclictest311ktimers/208:09:312
3057354992012,5cyclictest0-21swapper/209:20:162
3057354991710,5cyclictest3113785-21sshd09:56:072
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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