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2026-05-18 - 08:18

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 Mon May 18, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3073892995746,8cyclictest3180941-21kworker/u8:2+events_unbound00:30:140
3073906995339,8cyclictest391ktimers/321:10:143
3073906995238,10cyclictest391ktimers/321:35:143
3073906995140,7cyclictest3145779-21grep22:35:233
3073897994833,4cyclictest3080923-21kworker/u8:0+events_unbound19:26:311
3073897994735,7cyclictest3127098-21grep21:40:271
3073901994417,14cyclictest131rcu_preempt22:55:132
3073892994335,4cyclictest3132618-21munin-plugin-st22:00:000
3073897994231,7cyclictest3122396-21latency_hist21:30:011
3073897994230,8cyclictest3144129-21grep22:30:261
3073897994214,6cyclictest31063712sed20:40:261
3073892994234,4cyclictest3105124-21sendmail20:40:010
3073897994133,6cyclictest3142725-21kworker/u8:0+events_unbound22:52:011
3073897994031,6cyclictest3098726-21fschecks_count20:20:181
307389799402,10cyclictest24-21ksoftirqd/120:45:131
3073897993928,7cyclictest3102943-21grep20:30:261
3073892993931,4cyclictest0-21swapper/023:10:000
3073892993929,6cyclictest3142388-21unixbench_multi22:25:250
3073892993928,8cyclictest3075608-21munin-node19:15:010
3073901993830,4cyclictest0-21swapper/221:45:002
3073901993826,8cyclictest311ktimers/220:10:122
3073897993829,6cyclictest3110226-21cron20:55:001
3073897993818,6cyclictest3156491-21kworker/u8:0+events_unbound23:30:211
3073892993830,4cyclictest0-21swapper/023:35:000
3073901993726,8cyclictest3130482-21grep21:50:272
307389799379,6cyclictest131rcu_preempt22:25:121
3073906993628,5cyclictest0-21swapper/323:40:003
3073906993625,7cyclictest3131329-21fschecks_time21:55:163
3073901993629,3cyclictest0-21swapper/222:50:002
3073901993626,7cyclictest3163331-21grep23:25:252
3073897993625,6cyclictest3170773-21ls23:50:011
3073897993623,9cyclictest3105110-21sh20:40:011
3073897993620,11cyclictest3160241-21apt-config23:20:001
3073892993627,4cyclictest0-21swapper/020:30:260
3073892993626,6cyclictest0-21swapper/020:40:260
3073906993527,5cyclictest3161577-21unixbench_multi23:20:253
3073901993528,3cyclictest0-21swapper/200:40:002
3073901993527,4cyclictest0-21swapper/221:16:402
3073901993511,5cyclictest131rcu_preempt20:35:132
307389799354,11cyclictest31571132grep23:10:171
3073897993523,8cyclictest0-21swapper/119:40:011
3073892993523,8cyclictest3120208-21grep21:20:260
3073906993424,6cyclictest0-21swapper/320:55:003
3073906993423,7cyclictest3140734-21grep22:20:263
3073906993419,11cyclictest0-21swapper/319:50:173
3073906993419,11cyclictest0-21swapper/319:50:173
3073901993427,4cyclictest0-21swapper/220:20:012
3073897993422,9cyclictest3101722-21munin-plugin-st20:30:011
3073897993416,12cyclictest204-21dbus-daemon23:02:001
3073906993325,4cyclictest0-21swapper/319:20:173
3073901993326,4cyclictest3100004-21cron20:25:012
3073901993322,7cyclictest0-21swapper/222:20:262
307389799337,3cyclictest131rcu_preempt23:40:111
307389799336,3cyclictest131rcu_preempt20:00:121
3073897993324,5cyclictest0-21swapper/100:15:261
3073897993323,5cyclictest0-21swapper/120:55:251
3073897993322,7cyclictest3125371-21grep21:35:271
3073892993325,4cyclictest0-21swapper/022:20:260
3073906993223,5cyclictest0-21swapper/323:00:263
3073906993223,4cyclictest0-21swapper/323:17:013
3073906993223,4cyclictest0-21swapper/319:50:003
3073901993225,4cyclictest0-21swapper/219:35:262
3073901993225,4cyclictest0-21swapper/200:10:262
3073897993224,6cyclictest2693352-21kworker/u8:0+events_unbound19:15:031
3073897993223,5cyclictest0-21swapper/119:50:261
3073897993223,5cyclictest0-21swapper/119:50:261
3073897993223,4cyclictest0-21swapper/122:35:231
3073897993221,7cyclictest0-21swapper/123:35:251
3073892993224,4cyclictest0-21swapper/020:50:260
3073892993222,4cyclictest0-21swapper/019:21:280
3073906993123,5cyclictest0-21swapper/300:10:263
3073906993123,4cyclictest0-21swapper/321:45:163
3073906993118,9cyclictest3158399-21sh23:15:003
3073901993125,3cyclictest3170771-21kthreadd23:50:002
3073901993123,5cyclictest0-21swapper/200:10:002
3073901993121,6cyclictest3121952-21grep21:25:252
307389799318,6cyclictest131rcu_preempt19:40:131
3073897993122,5cyclictest0-21swapper/100:00:161
3073897993122,4cyclictest0-21swapper/122:05:171
3073897993122,4cyclictest0-21swapper/122:05:161
3073892993125,4cyclictest3115415-21kworker/u8:1+events_unbound22:31:580
3073892993122,5cyclictest0-21swapper/019:15:140
3073892993121,6cyclictest3174165-21cron00:00:000
3073892993121,6cyclictest0-21swapper/021:30:250
3073892993121,6cyclictest0-21swapper/021:25:250
3073892993120,8cyclictest3184426-21ls00:30:000
3073906993022,4cyclictest0-21swapper/322:45:263
3073906993022,4cyclictest0-21swapper/320:05:273
3073906993021,5cyclictest0-21swapper/320:20:013
3073906993020,7cyclictest3188093-21latency_hist00:40:013
3073906993017,8cyclictest0-21swapper/321:05:013
3073901993023,4cyclictest0-21swapper/220:30:262
3073901993022,4cyclictest0-21swapper/219:26:292
307389799304,5cyclictest3139308-21kworker/u8:3+events_freezable_power_22:50:011
3073897993022,4cyclictest0-21swapper/100:25:151
3073897993019,7cyclictest3178830-21grep00:10:261
3073897993016,6cyclictest3184290-21kworker/u8:0+events_unbound00:34:531
3073892993022,5cyclictest0-21swapper/021:40:000
307389299302,23cyclictest3130491-21grep21:50:270
3073892993020,7cyclictest3146261-21cut22:40:010
3073906992922,4cyclictest3075937-21fschecks_time19:15:033
3073906992922,4cyclictest0-21swapper/323:45:183
3073906992919,6cyclictest0-21swapper/322:15:173
307389799297,13cyclictest3072580-21kworker/1:0-events23:05:241
307389799293,13cyclictest0-21swapper/119:20:171
3073897992921,4cyclictest0-21swapper/121:10:271
3073892992923,4cyclictest3156491-21kworker/u8:0+events_unbound23:22:020
3073892992921,4cyclictest0-21swapper/023:25:240
3073892992920,6cyclictest3150060-21grep22:50:160
3073892992919,7cyclictest438-21cron23:40:000
3073892992919,7cyclictest3169502-21tune2fs23:45:180
3073906992822,3cyclictest0-21swapper/320:35:013
3073906992821,4cyclictest0-21swapper/323:25:253
3073906992820,5cyclictest0-21swapper/321:20:013
3073906992818,6cyclictest3173739-21unixbench_singl23:55:243
3073901992822,4cyclictest3174015-21kworker/u8:4+events_unbound00:33:332
3073901992821,5cyclictest0-21swapper/219:35:012
3073901992821,3cyclictest0-21swapper/220:05:182
3073901992820,5cyclictest3079128-21grep19:20:272
307389799289,6cyclictest24-21ksoftirqd/122:40:251
307389799282,21cyclictest3118966-21cron21:20:011
3073897992820,4cyclictest0-21swapper/121:30:251
3073897992811,4cyclictest131rcu_preempt00:35:251
3073897992810,10cyclictest131rcu_preempt20:05:271
3073892992820,3cyclictest0-21swapper/020:10:150
3073892992819,5cyclictest0-21swapper/019:55:160
307389299280,26cyclictest0-21swapper/023:15:120
3073906992720,4cyclictest0-21swapper/322:30:173
3073906992719,4cyclictest0-21swapper/319:40:263
3073906992718,6cyclictest3127517-21latency_hist21:45:003
3073906992718,5cyclictest3084649-21sh19:40:003
3073901992719,4cyclictest0-21swapper/221:00:262
3073901992717,6cyclictest0-21swapper/223:15:002
307390199270,11cyclictest0-21swapper/222:15:442
3073897992719,4cyclictest0-21swapper/121:55:161
3073897992716,6cyclictest0-21swapper/120:20:011
3073892992720,3cyclictest0-21swapper/022:00:260
3073892992718,7cyclictest3187826-21munin-run00:40:000
307389299271,7cyclictest3115143-21unixbench_singl21:05:270
3073906992619,4cyclictest0-21swapper/300:20:253
3073906992619,3cyclictest0-21swapper/300:10:003
3073906992618,4cyclictest0-21swapper/300:00:273
3073906992615,8cyclictest3112015-21sed21:00:013
3073906992614,8cyclictest3165029-21grep23:30:243
3073901992620,4cyclictest3091479-21latency_hist20:00:002
3073901992616,7cyclictest0-21swapper/219:15:282
3073901992615,7cyclictest3156290-21grep23:05:262
3073901992612,10cyclictest311ktimers/200:00:122
307389799269,9cyclictest24-21ksoftirqd/120:10:141
307389799262,17cyclictest3082550-21unixbench_singl19:30:261
3073897992619,5cyclictest3151207-21kworker/u8:2+events_unbound22:59:171
3073897992618,5cyclictest0-21swapper/100:20:161
3073892992621,3cyclictest13550irq/42-30be0000.ethernet21:00:200
3073892992619,4cyclictest3177605-21idleruntime-cro00:10:000
3073892992618,5cyclictest3174015-21kworker/u8:4+events_unbound00:19:450
3073892992618,5cyclictest3098297-21sendmail20:20:010
3073906992519,3cyclictest0-21swapper/320:45:143
3073906992518,5cyclictest53-21kcompactd022:40:203
3073906992517,4cyclictest0-21swapper/322:25:253
3073906992516,5cyclictest3136031-21latency_hist22:10:003
3073906992516,5cyclictest3136031-21latency_hist22:10:003
3073906992515,6cyclictest0-21swapper/320:00:003
3073906992513,8cyclictest0-21swapper/320:21:353
3073901992519,3cyclictest0-21swapper/223:45:002
3073901992518,4cyclictest0-21swapper/222:40:012
3073901992518,3cyclictest0-21swapper/223:55:152
3073901992517,5cyclictest0-21swapper/220:00:262
3073901992515,7cyclictest3137291-21grep22:10:262
3073901992514,8cyclictest3167152-21tr23:40:002
3073897992519,4cyclictest3080923-21kworker/u8:0+events_unbound21:07:051
3073897992518,5cyclictest3156491-21kworker/u8:0+events_unbound23:20:401
3073897992518,5cyclictest3127197-21kworker/u8:0+events_unbound22:01:171
3073897992518,5cyclictest3127197-21kworker/u8:0+events_unbound21:50:151
3073897992518,5cyclictest3115415-21kworker/u8:1+events_unbound21:24:281
3073897992518,5cyclictest3084596-21kworker/u8:3+events_unbound19:48:091
3073897992512,3cyclictest131rcu_preempt21:49:031
307389799251,11cyclictest0-21swapper/123:55:511
307389299252,6cyclictest3117260-21cron21:15:010
3073892992519,3cyclictest13550irq/42-30be0000.ethernet20:05:270
3073892992518,4cyclictest13850irq/36-mmc121:50:000
3073892992517,5cyclictest3154212-21kworker/u8:3+events_unbound00:13:250
3073892992517,5cyclictest0-21swapper/019:35:010
3073892992516,6cyclictest3154210-21gzip23:00:240
3073892992516,6cyclictest0-21swapper/022:55:150
3073892992513,8cyclictest3084677-21sendmail19:40:010
3073906992418,3cyclictest0-21swapper/320:25:173
3073906992418,3cyclictest0-21swapper/319:35:013
3073906992417,4cyclictest3151568-21apt-key22:55:013
3073906992415,6cyclictest3120156-21sed21:20:263
3073906992415,5cyclictest0-21swapper/323:00:003
3073906992414,7cyclictest3106644-21seq20:42:513
3073901992418,3cyclictest0-21swapper/223:20:252
3073901992418,3cyclictest0-21swapper/200:20:162
3073901992416,5cyclictest0-21swapper/222:30:012
3073901992416,5cyclictest0-21swapper/219:50:262
3073901992416,5cyclictest0-21swapper/219:50:262
307389799243,3cyclictest131rcu_preempt23:55:011
3073897992418,4cyclictest3156491-21kworker/u8:0+events_unbound23:25:251
3073897992418,4cyclictest2890958-21kworker/u8:2+events_unbound19:14:041
3073897992416,6cyclictest3103101-21kworker/u8:3+events_unbound21:00:131
3073897992415,5cyclictest0-21swapper/119:55:261
3073897992414,5cyclictest3177146-21tail00:05:251
307389299244,13cyclictest13550irq/42-30be0000.ethernet19:25:120
3073892992420,2cyclictest13550irq/42-30be0000.ethernet22:45:160
3073892992418,4cyclictest3073883-21cyclictest23:43:060
3073892992418,3cyclictest0-21swapper/023:10:210
3073892992417,3cyclictest0-21swapper/000:00:030
3073892992416,5cyclictest0-21swapper/022:45:000
307389299241,3cyclictest3171231-21perl23:50:170
3073892992413,7cyclictest0-21swapper/021:00:000
3073906992316,3cyclictest0-21swapper/323:05:213
3073906992315,5cyclictest0-21swapper/319:30:013
3073906992312,8cyclictest3122410-21basename21:30:013
307390699231,12cyclictest0-21swapper/300:25:033
3073901992316,5cyclictest0-21swapper/221:50:002
3073901992316,3cyclictest0-21swapper/223:55:012
3073901992315,6cyclictest311ktimers/223:30:222
3073901992315,4cyclictest0-21swapper/221:55:262
3073901992312,8cyclictest3111164-21cat20:55:232
3073897992311,7cyclictest0-21swapper/122:20:001
3073897992311,5cyclictest24-21ksoftirqd/122:20:201
307389799231,14cyclictest0-21swapper/122:13:411
3073892992318,3cyclictest3073883-21cyclictest19:50:230
3073892992318,3cyclictest3073883-21cyclictest19:50:230
3073892992316,3cyclictest0-21swapper/022:10:160
3073892992316,3cyclictest0-21swapper/020:25:160
3073892992315,5cyclictest0-21swapper/022:15:260
3073892992315,4cyclictest0-21swapper/000:25:010
307389299231,18cyclictest0-21swapper/019:45:350
307389299231,18cyclictest0-21swapper/019:42:580
307389299230,21cyclictest0-21swapper/020:00:260
307390699228,11cyclictest391ktimers/322:10:163
3073906992216,3cyclictest0-21swapper/321:05:263
3073906992213,6cyclictest3185826-21seq00:31:383
3073906992213,6cyclictest3180023-21cat00:15:213
3073906992212,7cyclictest3167923-21ntpq23:40:193
307390699221,14cyclictest0-21swapper/322:02:393
3073901992216,3cyclictest3085630-21mailstats19:40:242
3073901992216,3cyclictest0-21swapper/223:00:172
3073901992216,3cyclictest0-21swapper/222:05:202
3073901992216,3cyclictest0-21swapper/222:05:202
3073901992215,4cyclictest311ktimers/220:25:162
3073901992215,4cyclictest3075435-21sh19:14:012
3073901992215,3cyclictest0-21swapper/221:10:242
3073901992215,3cyclictest0-21swapper/220:50:162
3073901992212,6cyclictest0-21swapper/220:45:262
3073906992116,3cyclictest0-21swapper/323:50:163
3073906992114,3cyclictest0-21swapper/320:01:333
3073906992113,6cyclictest3095268-21cut20:10:153
3073906992111,6cyclictest0-21swapper/319:15:023
3073906992110,8cyclictest3129571-21forks21:50:163
3073901992116,3cyclictest0-21swapper/221:05:262
3073901992114,5cyclictest311ktimers/200:25:192
3073901992114,4cyclictest3143268-21fschecks_time22:30:172
3073901992113,4cyclictest0-21swapper/219:45:172
3073901992112,6cyclictest0-21swapper/223:15:142
307390199211,10cyclictest3180073-21ntpq00:15:222
307389299211,3cyclictest0-21swapper/020:22:130
307389299210,18cyclictest121ktimers/022:05:130
307389299210,18cyclictest121ktimers/022:05:130
307390199209,8cyclictest3122625-21seq21:30:112
307390199209,8cyclictest1-21systemd22:41:572
3073901992014,4cyclictest3124372-21cpu21:35:142
3073901992014,4cyclictest311ktimers/222:00:162
3073901992012,4cyclictest0-21swapper/220:40:162
3073906991911,5cyclictest3104551-21date20:35:263
307390199199,7cyclictest3150915-21awk22:50:252
3073901991811,4cyclictest0-21swapper/221:20:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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