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2026-03-25 - 16:14

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 all highest latencies:
System rackbslot5s.osadl.org (updated Wed Mar 25, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3240230995137,9cyclictest391ktimers/309:10:133
3240230994837,8cyclictest3250979-21apt-get07:40:003
3240228994840,5cyclictest3351596-21grep12:30:002
3240230994735,9cyclictest391ktimers/308:50:153
3240230994735,9cyclictest391ktimers/308:50:153
3240219994739,4cyclictest0-21swapper/008:45:000
3240219994737,7cyclictest3257813-21unixbench_singl07:55:240
3240219994637,6cyclictest3337333-21grep11:45:250
3240219994332,6cyclictest3248877-21grep07:30:240
3240219994316,5cyclictest131rcu_preempt08:00:120
3240223994233,5cyclictest0-21swapper/112:40:011
3240223994233,4cyclictest0-21swapper/109:15:221
3240230994132,5cyclictest3332138-21unixbench_multi11:30:233
3240230994129,4cyclictest3278877-21kworker/u8:3+events_unbound09:39:033
3240230994031,6cyclictest3354982-21cron12:40:003
3240228994029,6cyclictest0-21swapper/208:40:012
3240223994032,5cyclictest3301507-21munin-plugin-st10:05:011
3240223994032,5cyclictest3301507-21munin-plugin-st10:05:001
3240219994032,4cyclictest0-21swapper/008:50:010
3240219994015,7cyclictest131rcu_preempt10:45:120
3240219994015,7cyclictest131rcu_preempt10:45:110
3240230993926,8cyclictest0-21swapper/308:00:193
3240228993929,6cyclictest0-21swapper/211:20:242
3240228993920,7cyclictest3239792-21kworker/u8:0+events_unbound07:22:392
3240223993931,4cyclictest0-21swapper/107:25:231
3240223993926,8cyclictest3306834-21sendmail10:20:011
3240219993933,4cyclictest3296011-21kworker/u8:2+events_unbound09:54:050
3240219993931,5cyclictest3270166-21idleruntime-cro08:35:000
3240230993829,4cyclictest0-21swapper/308:23:533
3240230993828,6cyclictest0-21swapper/308:35:003
3240230993827,5cyclictest0-21swapper/311:05:143
3240230993826,7cyclictest3304660-21grep10:10:253
3240228993828,6cyclictest3333890-21grep11:35:232
3240228993828,6cyclictest0-21swapper/210:05:252
3240223993824,10cyclictest231ktimers/108:40:121
324021999387,20cyclictest131rcu_preempt12:40:010
3240219993831,5cyclictest3271847-21kworker/u8:1+events_unbound09:49:040
3240219993830,6cyclictest3333892-21unixbench_singl11:35:230
3240219993829,6cyclictest3332611-21debian-sa111:35:000
3240230993730,5cyclictest3332475-21kworker/u8:0+events_unbound12:08:413
3240230993728,6cyclictest0-21swapper/307:25:013
3240228993729,4cyclictest0-21swapper/209:30:012
3240228993728,6cyclictest3306363-21grep10:15:262
3240228993727,7cyclictest3251026-21latency_hist07:40:022
3240228993721,4cyclictest3255042-21kworker/u8:4+events_unbound08:32:412
3240219993727,4cyclictest3278877-21kworker/u8:3+events_unbound10:02:410
3240219993727,4cyclictest3278877-21kworker/u8:3+events_unbound10:02:410
3240219993725,7cyclictest0-21swapper/010:55:230
3240230993628,4cyclictest0-21swapper/309:45:013
3240230993625,6cyclictest0-21swapper/308:45:263
3240230993624,9cyclictest391ktimers/310:25:143
3240228993628,5cyclictest3349441-21unixbench_multi12:20:252
3240228993628,5cyclictest0-21swapper/209:14:592
3240228993628,4cyclictest3308738-21sed10:25:012
3240228993628,4cyclictest0-21swapper/210:25:162
3240228993627,6cyclictest0-21swapper/208:20:002
3240223993628,4cyclictest0-21swapper/109:55:001
3240223993627,4cyclictest0-21swapper/107:40:011
3240223993626,7cyclictest3251575-21fschecks_count07:40:161
3240219993629,4cyclictest0-21swapper/011:10:110
3240219993628,4cyclictest0-21swapper/008:15:010
3240219993617,5cyclictest3342906-21kworker/u8:3+events_unbound12:14:410
3240230993526,6cyclictest3347697-21unixbench_multi12:15:253
3240230993526,6cyclictest3347697-21unixbench_multi12:15:253
3240228993527,4cyclictest0-21swapper/211:25:142
3240219993527,4cyclictest0-21swapper/009:45:020
3240219993527,4cyclictest0-21swapper/009:34:000
3240219993527,4cyclictest0-21swapper/009:00:000
3240219993527,4cyclictest0-21swapper/009:00:000
3240219993526,5cyclictest3308527-21cron10:25:010
3240219993524,8cyclictest3353242-21sshd12:34:350
3240219993513,4cyclictest131rcu_preempt10:05:160
3240219993511,3cyclictest32538262gunzip07:45:240
3240219993510,12cyclictest131rcu_preempt10:30:230
3240230993426,4cyclictest3252921-21munin-plugin-st07:45:003
3240230993424,6cyclictest0-21swapper/310:15:253
3240228993427,3cyclictest0-21swapper/208:10:252
3240228993426,4cyclictest0-21swapper/209:20:002
3240223993426,4cyclictest3244162-21kthreadd07:20:001
3240223993426,4cyclictest0-21swapper/110:05:141
3240223993424,7cyclictest3308526-21cron10:25:011
3240223993424,6cyclictest0-21swapper/109:55:241
324021999343,20cyclictest3306856-21cat10:20:000
3240219993414,5cyclictest3322102-21kworker/u8:3-events_unbound11:26:420
3240230993325,4cyclictest0-21swapper/312:10:263
3240230993325,4cyclictest0-21swapper/311:45:253
3240230993324,5cyclictest0-21swapper/307:30:243
3240230993323,6cyclictest0-21swapper/312:29:343
3240230993320,5cyclictest3324539-21kworker/u8:0+events_unbound11:24:293
3240228993326,4cyclictest0-21swapper/211:40:232
3240228993326,4cyclictest0-21swapper/208:05:152
3240228993325,4cyclictest0-21swapper/207:50:252
3240228993324,6cyclictest0-21swapper/208:50:002
3240228993317,6cyclictest3271847-21kworker/u8:1+events_unbound09:05:592
3240228993316,6cyclictest3291899-21kworker/u8:0+events_unbound09:45:062
3240223993322,7cyclictest0-21swapper/107:45:251
3240223993320,9cyclictest231ktimers/107:20:131
3240219993321,8cyclictest3247575-21cron07:30:000
3240230993223,6cyclictest0-21swapper/309:00:013
3240230993223,6cyclictest0-21swapper/309:00:003
3240230993223,5cyclictest0-21swapper/310:05:013
3240230993223,5cyclictest0-21swapper/310:05:003
3240230993222,6cyclictest0-21swapper/312:20:243
3240230993222,6cyclictest0-21swapper/311:59:593
3240230993222,6cyclictest0-21swapper/309:15:253
3240230993222,5cyclictest0-21swapper/307:55:013
3240230993221,7cyclictest0-21swapper/311:25:243
3240230993221,6cyclictest0-21swapper/311:15:003
3240230993220,8cyclictest3257812-21grep07:55:253
3240228993224,5cyclictest0-21swapper/207:50:002
3240228993224,4cyclictest0-21swapper/211:00:152
3240228993223,5cyclictest0-21swapper/210:00:012
3240228993222,7cyclictest3336895-21ps11:45:222
3240228993222,7cyclictest311ktimers/208:55:122
3240228993222,7cyclictest311ktimers/208:55:122
3240228993216,7cyclictest131rcu_preempt11:30:252
3240228993215,9cyclictest131rcu_preempt09:30:182
3240223993226,4cyclictest3313851-21cron10:40:001
3240223993222,6cyclictest0-21swapper/108:50:011
3240223993222,5cyclictest0-21swapper/110:50:241
3240223993221,6cyclictest0-21swapper/107:50:161
324021999328,13cyclictest131rcu_preempt08:35:200
324021999327,11cyclictest131rcu_preempt11:55:000
3240219993223,6cyclictest151rcuc/009:20:130
3240219993222,7cyclictest3245399-21grep07:20:270
324021999321,8cyclictest11-21ksoftirqd/011:20:110
3240219993216,5cyclictest131rcu_preempt09:10:010
3240219993214,4cyclictest131rcu_preempt07:40:120
3240230993124,5cyclictest3263083-21kworker/u8:1+events_unbound08:18:403
3240230993121,6cyclictest0-21swapper/311:00:243
3240230993121,6cyclictest0-21swapper/309:09:593
3240230993121,6cyclictest0-21swapper/308:35:153
3240230993120,7cyclictest0-21swapper/310:50:003
3240230993120,7cyclictest0-21swapper/310:49:593
3240230993120,7cyclictest0-21swapper/309:35:003
3240230993117,10cyclictest391ktimers/312:30:123
3240228993118,5cyclictest3303223-21kworker/u8:0+events_unbound10:53:312
3240228993118,5cyclictest3271847-21kworker/u8:1+events_unbound10:00:402
3240228993118,5cyclictest3271847-21kworker/u8:1+events_unbound10:00:402
3240223993124,4cyclictest3348177-21munin-plugin-st12:19:591
3240223993124,4cyclictest3348177-21munin-plugin-st12:19:591
324021999319,11cyclictest11-21ksoftirqd/012:25:190
3240219993124,3cyclictest0-21swapper/009:40:010
3240219993122,6cyclictest0-21swapper/010:00:000
3240219993121,7cyclictest121ktimers/007:15:130
3240219993118,5cyclictest3239792-21kworker/u8:0+events_unbound07:39:520
3240219993115,5cyclictest131rcu_preempt08:05:180
3240219993114,5cyclictest131rcu_preempt07:55:020
3240219993113,5cyclictest3330717-21kworker/u8:2+events_unbound12:20:220
3240230993022,4cyclictest0-21swapper/310:44:593
3240230993022,4cyclictest0-21swapper/310:44:593
3240230993022,3cyclictest0-21swapper/309:50:253
3240230993021,5cyclictest3296383-21ls09:50:013
3240230993020,6cyclictest0-21swapper/310:50:253
3240230993019,7cyclictest0-21swapper/311:35:233
3240228993023,5cyclictest3342906-21kworker/u8:3+events_unbound12:04:322
3240228993023,4cyclictest3259753-21kworker/u8:2+events_unbound08:03:532
3240228993022,4cyclictest0-21swapper/207:30:012
3240228993015,8cyclictest131rcu_preempt08:30:022
3240223993022,4cyclictest0-21swapper/109:15:001
3240223993021,5cyclictest0-21swapper/108:05:271
3240223993017,10cyclictest231ktimers/107:30:121
324021999309,11cyclictest11-21ksoftirqd/011:55:230
324021999302,4cyclictest0-21swapper/009:15:120
3240219993023,4cyclictest3268044-21unixbench_singl08:25:280
3240219993022,4cyclictest3318508-21grep10:50:250
3240219993020,6cyclictest0-21swapper/008:20:270
3240219993014,9cyclictest11-21ksoftirqd/010:11:540
3240219993013,6cyclictest131rcu_preempt11:15:120
3240219993010,6cyclictest131rcu_preempt08:50:280
3240219993010,6cyclictest131rcu_preempt08:50:280
3240230992919,6cyclictest0-21swapper/307:45:263
3240230992919,6cyclictest0-21swapper/307:30:013
3240230992919,6cyclictest0-21swapper/307:20:023
3240228992921,5cyclictest3340986-21kworker/u8:1+events_unbound11:56:162
3240228992919,7cyclictest3320230-21grep10:55:242
3240228992915,5cyclictest3310191-21kworker/u8:1+events_unbound10:42:062
3240228992915,5cyclictest3310191-21kworker/u8:1+events_unbound10:42:062
3240228992914,7cyclictest3247807-21/usr/sbin/munin07:30:152
324022899291,13cyclictest0-21swapper/212:09:542
3240223992920,4cyclictest0-21swapper/109:20:161
3240223992919,6cyclictest0-21swapper/111:15:261
3240223992919,6cyclictest0-21swapper/108:30:001
3240223992918,7cyclictest1-21systemd11:49:271
324021999298,11cyclictest131rcu_preempt07:10:240
3240219992923,3cyclictest3344766-21kthreadd12:10:000
3240219992914,4cyclictest131rcu_preempt09:10:250
3240219992910,13cyclictest151rcuc/008:15:230
324023099283,7cyclictest32797752sed09:00:183
3240230992819,5cyclictest0-21swapper/309:55:133
3240230992817,5cyclictest3239792-21kworker/u8:0+events_unbound08:10:253
324023099281,4cyclictest131rcu_preempt11:40:113
3240228992820,5cyclictest3348164-21sh12:20:002
3240228992820,5cyclictest3348164-21sh12:19:592
3240228992818,6cyclictest0-21swapper/208:40:252
3240228992817,7cyclictest3345131-21fschecks_count12:10:152
3240223992821,3cyclictest0-21swapper/111:00:141
3240223992820,4cyclictest0-21swapper/111:05:151
3240223992817,3cyclictest0-21swapper/108:20:131
324021999288,3cyclictest0-21swapper/011:42:350
324021999288,3cyclictest0-21swapper/010:42:490
324021999288,3cyclictest0-21swapper/010:42:490
324021999287,12cyclictest131rcu_preempt11:00:230
3240219992818,4cyclictest131rcu_preempt12:16:470
3240219992818,4cyclictest131rcu_preempt12:16:460
3240230992719,4cyclictest0-21swapper/308:05:263
3240230992718,4cyclictest0-21swapper/310:20:263
3240230992717,5cyclictest0-21swapper/310:30:233
3240228992721,3cyclictest0-21swapper/209:00:222
3240228992720,5cyclictest3268114-21kworker/u8:0+events_unbound09:20:192
3240228992720,4cyclictest3244163-21latency_hist07:20:012
3240228992719,5cyclictest3264922-21kworker/u8:2+events_unbound08:23:052
3240228992717,4cyclictest131rcu_preempt11:10:142
3240228992710,11cyclictest131rcu_preempt12:35:102
3240223992717,6cyclictest0-21swapper/111:40:011
3240223992717,6cyclictest0-21swapper/108:15:251
324021999272,8cyclictest11-21ksoftirqd/012:00:230
3240219992717,7cyclictest3312533-21grep10:35:150
3240219992712,4cyclictest131rcu_preempt09:25:230
3240219992710,3cyclictest131rcu_preempt11:05:100
324023099262,4cyclictest131rcu_preempt10:10:013
3240230992620,4cyclictest3278877-21kworker/u8:3+events_unbound09:24:013
3240230992617,5cyclictest0-21swapper/311:15:203
3240230992616,4cyclictest3289082-21kworker/u8:2+events_unbound09:27:103
3240228992620,4cyclictest3240211-21cyclictest12:30:192
3240228992620,4cyclictest3220590-21kworker/u8:1+events_unbound07:10:142
324022899261,14cyclictest0-21swapper/211:19:542
3240223992618,4cyclictest0-21swapper/112:20:241
3240223992618,4cyclictest0-21swapper/109:25:251
3240223992617,5cyclictest0-21swapper/109:45:111
3240223992617,5cyclictest0-21swapper/109:00:011
3240223992617,5cyclictest0-21swapper/109:00:001
3240223992616,6cyclictest0-21swapper/107:55:241
324021999266,7cyclictest11-21ksoftirqd/010:30:010
3240230992518,5cyclictest3264922-21kworker/u8:2+events_unbound08:40:143
3240230992517,5cyclictest0-21swapper/312:04:593
3240230992517,4cyclictest0-21swapper/310:40:013
324022899257,10cyclictest32-21ksoftirqd/210:10:172
324022899253,12cyclictest32-21ksoftirqd/211:51:532
3240228992516,6cyclictest0-21swapper/209:40:002
3240228992514,4cyclictest131rcu_preempt09:45:012
324022899251,13cyclictest0-21swapper/210:39:112
3240223992517,4cyclictest0-21swapper/111:25:001
3240223992517,4cyclictest0-21swapper/107:15:021
3240223992516,5cyclictest0-21swapper/110:45:151
3240223992516,5cyclictest0-21swapper/110:45:151
3240223992516,5cyclictest0-21swapper/110:25:251
3240223992515,7cyclictest231ktimers/111:30:121
3240223992515,6cyclictest0-21swapper/112:30:251
3240223992510,3cyclictest131rcu_preempt10:40:131
3240223992510,3cyclictest131rcu_preempt10:40:131
3240230992416,4cyclictest0-21swapper/311:55:013
324022899248,10cyclictest131rcu_preempt11:05:212
3240228992415,6cyclictest3311083-21latency10:30:152
324022899241,13cyclictest0-21swapper/207:44:452
3240223992417,5cyclictest3324539-21kworker/u8:0+events_unbound11:10:221
3240223992416,4cyclictest3263336-21sh08:15:011
3240223992416,4cyclictest0-21swapper/110:10:151
3240223992414,6cyclictest0-21swapper/112:05:261
3240223992414,6cyclictest0-21swapper/111:55:241
3240230992316,3cyclictest0-21swapper/311:00:003
3240230992316,3cyclictest0-21swapper/307:10:193
3240230992313,6cyclictest0-21swapper/308:30:013
3240228992317,4cyclictest3271847-21kworker/u8:1+events_unbound08:50:012
3240228992317,4cyclictest3271847-21kworker/u8:1+events_unbound08:50:012
324022899231,11cyclictest2118798-21kworker/2:1+mm_percpu_wq09:53:472
3240223992317,4cyclictest3330717-21kworker/u8:2+events_unbound11:54:191
3240223992317,3cyclictest0-21swapper/109:45:001
3240223992315,5cyclictest0-21swapper/111:40:151
3240223992314,6cyclictest0-21swapper/112:10:221
3240223992314,5cyclictest0-21swapper/108:35:251
3240228992210,4cyclictest131rcu_preempt10:45:172
3240228992210,4cyclictest131rcu_preempt10:45:172
3240223992216,4cyclictest145-21jbd2/mmcblk1p2-809:35:071
3240223992216,3cyclictest0-21swapper/109:05:241
3240223992215,4cyclictest0-21swapper/110:55:141
3240223992213,6cyclictest3269256-21ntpq08:30:211
3240223992213,4cyclictest0-21swapper/109:30:271
3240223992113,5cyclictest0-21swapper/108:00:241
3240223992014,4cyclictest3311196-21ntpq10:30:171
3240223992012,5cyclictest231ktimers/111:25:191
324022399190,5cyclictest0-21swapper/112:04:311
324022399190,11cyclictest0-21swapper/109:02:191
3240223991812,3cyclictest0-21swapper/108:50:131
3240223991812,3cyclictest0-21swapper/108:50:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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