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2026-08-25 - 16:39

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 Tue Aug 25, 2026 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3782961995035,11cyclictest121ktimers/008:40:110
3782973994840,5cyclictest438-21cron10:40:003
3782965994839,6cyclictest3863440-21sh11:00:001
3782961994634,9cyclictest121ktimers/007:25:130
3782970994536,6cyclictest3881310-21cut11:50:162
3782973994435,6cyclictest3868347-21grep11:10:253
3782965994431,10cyclictest231ktimers/108:20:121
3782973994335,4cyclictest3891159-21sendmail12:20:003
3782973994233,6cyclictest3804183-21munin-plugin-st08:10:023
3782970994233,6cyclictest3894103-21unixbench_multi12:25:262
3782973994133,4cyclictest3814430-21sendmail08:40:013
3782965994131,7cyclictest3825866-21grep09:10:241
3782973994027,8cyclictest0-21swapper/308:40:253
3782970994033,4cyclictest3782954-21cyclictest08:29:192
3782970994031,6cyclictest0-21swapper/209:20:002
3782970994028,7cyclictest3814335-21sshd08:39:192
3782965994032,4cyclictest0-21swapper/109:04:221
3782965994029,8cyclictest3892442-21grep12:20:271
3782961994029,8cyclictest121ktimers/010:10:130
3782973993928,7cyclictest0-21swapper/309:30:273
3782973993927,6cyclictest0-21swapper/307:30:253
3782970993930,4cyclictest0-21swapper/208:55:162
3782965993931,4cyclictest0-21swapper/107:15:011
3782965993930,4cyclictest0-21swapper/112:30:171
3782961993932,4cyclictest3805889-21munin-plugin-st08:15:010
3782973993826,7cyclictest0-21swapper/309:30:003
3782965993824,10cyclictest231ktimers/108:05:121
3782973993729,5cyclictest3811000-21auditctl08:30:003
3782973993728,6cyclictest3795430-21cron07:45:013
3782973993725,8cyclictest3860069-21latency_hist10:50:003
3782970993729,5cyclictest3807605-21chrt08:20:022
3782965993728,6cyclictest0-21swapper/112:00:001
3782961993730,5cyclictest3871950-21kworker/u8:1+events_unbound11:29:430
3782973993629,4cyclictest3786906-21munin-plugin-st07:20:023
3782973993627,6cyclictest3871734-21unixbench_multi11:20:263
3782973993624,7cyclictest0-21swapper/312:35:253
3782970993630,4cyclictest3829609-21kworker/u8:3+events_unbound09:34:282
3782970993629,3cyclictest0-21swapper/211:00:002
3782965993626,6cyclictest0-21swapper/110:15:171
3782965993625,7cyclictest3840008-21grep09:50:261
3782973993528,5cyclictest3827697-21kworker/u8:0+events_unbound09:24:273
3782973993525,6cyclictest0-21swapper/307:25:163
3782970993524,8cyclictest3892462-21grep12:20:272
3782970993523,8cyclictest3842120-21auditctl10:00:002
3782961993528,3cyclictest0-21swapper/007:49:130
3782973993424,6cyclictest0-21swapper/307:25:013
378297099344,5cyclictest131rcu_preempt12:35:122
3782970993425,6cyclictest3849171-21idleruntime-cro10:20:002
378297099341,29cyclictest3842536-21fschecks_count10:00:162
3782965993426,4cyclictest0-21swapper/112:40:011
3782965993424,6cyclictest0-21swapper/111:09:421
3782961993427,4cyclictest2-21kthreadd07:15:020
3782973993325,4cyclictest0-21swapper/311:30:153
3782973993324,6cyclictest0-21swapper/309:20:003
3782973993323,6cyclictest0-21swapper/309:45:243
3782973993322,9cyclictest391ktimers/310:15:133
3782973993320,11cyclictest391ktimers/308:45:133
3782970993327,3cyclictest0-21swapper/211:40:012
3782970993324,5cyclictest3788218-21head07:20:272
3782970993323,6cyclictest0-21swapper/208:30:272
3782965993325,5cyclictest0-21swapper/109:45:001
3782965993325,4cyclictest0-21swapper/111:15:171
3782965993325,4cyclictest0-21swapper/111:15:161
3782965993321,8cyclictest3876805-21grep11:35:251
3782965993320,10cyclictest231ktimers/109:20:131
3782961993325,4cyclictest0-21swapper/008:50:260
3782961993324,6cyclictest0-21swapper/010:45:000
3782961993322,6cyclictest0-21swapper/010:50:000
3782973993224,4cyclictest3887736-21auditctl12:10:003
3782973993223,6cyclictest0-21swapper/308:15:023
3782973993222,7cyclictest391ktimers/307:50:133
3782973993222,6cyclictest0-21swapper/312:20:283
3782970993226,4cyclictest3854531-21kworker/u8:1+events_unbound10:54:412
3782970993225,4cyclictest3836796-21cron09:45:012
3782970993224,6cyclictest3831362-21kworker/u8:1+events_unbound09:29:292
3782970993223,6cyclictest3840010-21unixbench_singl09:50:262
3782965993225,4cyclictest3891165-21sendmail12:20:001
3782965993224,4cyclictest0-21swapper/110:50:171
3782961993225,4cyclictest3811000-21sh08:30:000
3782961993224,4cyclictest0-21swapper/010:00:020
3782973993124,4cyclictest3894563-21cron12:30:003
3782973993123,4cyclictest0-21swapper/310:55:263
3782973993123,4cyclictest0-21swapper/310:20:233
3782973993121,6cyclictest0-21swapper/308:00:233
3782973993121,6cyclictest0-21swapper/307:35:263
3782973993120,7cyclictest0-21swapper/310:15:013
3782970993121,6cyclictest0-21swapper/208:45:262
3782965993124,4cyclictest0-21swapper/110:05:261
3782965993123,4cyclictest0-21swapper/110:00:011
3782965993122,6cyclictest0-21swapper/107:25:251
3782965993122,5cyclictest0-21swapper/111:25:251
3782965993121,7cyclictest3850414-21grep10:20:231
3782961993122,5cyclictest121ktimers/007:40:130
3782973993020,6cyclictest0-21swapper/312:10:153
3782973993019,7cyclictest0-21swapper/308:50:263
3782970993024,4cyclictest3836512-21kworker/u8:2+events_unbound09:46:402
3782970993023,5cyclictest3859758-21kworker/u8:0+events_unbound10:49:412
3782970993021,7cyclictest3819166-21kworker/u8:2+events_unbound08:54:212
3782970993019,7cyclictest0-21swapper/208:00:232
3782970993014,5cyclictest3882307-21kworker/u8:0+events_unbound11:55:232
3782965993023,4cyclictest0-21swapper/112:05:261
3782965993023,4cyclictest0-21swapper/108:50:001
3782965993022,5cyclictest0-21swapper/108:20:011
3782965993021,5cyclictest3847462-21munin-plugin-st10:15:011
3782965993021,5cyclictest0-21swapper/107:35:021
3782965993021,4cyclictest0-21swapper/111:05:001
3782961993022,5cyclictest11-21ksoftirqd/008:00:100
3782973992921,6cyclictest3866741-21kworker/u8:2+events_unbound11:49:453
3782973992920,5cyclictest0-21swapper/310:25:183
3782973992919,6cyclictest0-21swapper/311:50:263
3782973992919,6cyclictest0-21swapper/307:10:313
3782973992918,6cyclictest0-21swapper/311:35:253
3782970992923,4cyclictest3866741-21kworker/u8:2+events_unbound11:44:372
3782970992923,4cyclictest3819166-21kworker/u8:2+events_unbound09:11:422
3782970992923,3cyclictest0-21swapper/212:05:272
3782970992921,6cyclictest3793339-21kworker/u8:2+events_unbound07:45:242
3782970992919,7cyclictest3850460-21grep10:20:232
3782970992919,7cyclictest3786897-21auditctl07:20:012
3782970992919,6cyclictest3855986-21grep10:35:262
3782970992918,7cyclictest3829582-21grep09:20:252
3782970992918,7cyclictest204-21dbus-daemon11:34:442
3782965992920,7cyclictest3810646-21kworker/u8:1+events_unbound08:30:151
3782965992920,6cyclictest3889021-21unixbench_singl12:10:261
3782965992919,6cyclictest0-21swapper/108:15:011
3782961992923,3cyclictest0-21swapper/008:40:000
3782961992921,4cyclictest0-21swapper/010:50:280
3782961992910,6cyclictest3864739-21awk11:00:250
3782973992820,5cyclictest0-21swapper/308:20:013
3782973992818,6cyclictest0-21swapper/309:15:003
3782970992822,4cyclictest3824259-21kworker/u8:0+events_unbound09:09:232
3782970992822,4cyclictest3824259-21kworker/u8:0+events_unbound09:09:232
3782970992815,8cyclictest204-21dbus-daemon10:09:342
3782965992820,5cyclictest0-21swapper/111:20:251
3782965992820,5cyclictest0-21swapper/110:45:151
3782965992818,7cyclictest231ktimers/110:25:061
3782965992818,6cyclictest0-21swapper/110:00:161
3782961992822,3cyclictest0-21swapper/010:30:230
3782961992821,3cyclictest0-21swapper/009:30:270
3782961992821,3cyclictest0-21swapper/008:25:010
3782961992820,4cyclictest0-21swapper/012:05:260
3782961992818,7cyclictest3852921-21sed10:30:020
3782961992811,15cyclictest0-21swapper/009:19:260
3782973992719,5cyclictest0-21swapper/308:55:163
3782973992718,7cyclictest3850668-21kworker/u8:2+events_unbound10:34:373
3782973992717,6cyclictest0-21swapper/309:40:003
3782973992716,7cyclictest0-21swapper/310:05:263
3782970992722,3cyclictest3894499-21kworker/u8:1+events_unbound12:34:502
3782970992720,4cyclictest3867871-21ntpq11:10:232
3782970992719,5cyclictest3800511-21kworker/u8:0+events_unbound08:41:502
3782970992719,5cyclictest0-21swapper/210:40:172
3782965992720,4cyclictest0-21swapper/109:00:011
3782965992717,7cyclictest3880717-21basename11:50:011
3782965992716,8cyclictest3802015-21grep08:00:231
3782961992721,3cyclictest645-21runrttasks09:00:000
3782961992720,4cyclictest0-21swapper/011:35:000
3782961992719,5cyclictest0-21swapper/011:35:150
3782961992717,7cyclictest3872191-21latency_hist11:25:010
3782961992717,6cyclictest0-21swapper/011:50:270
3782961992717,6cyclictest0-21swapper/008:30:290
3782973992620,3cyclictest0-21swapper/312:30:173
3782973992617,6cyclictest0-21swapper/312:00:183
3782973992616,6cyclictest0-21swapper/309:05:003
3782970992618,4cyclictest0-21swapper/207:40:012
3782970992616,7cyclictest3805411-21grep08:10:252
378297099261,4cyclictest131rcu_preempt12:15:252
3782965992620,3cyclictest0-21swapper/107:55:251
3782965992619,4cyclictest0-21swapper/107:50:161
3782965992619,3cyclictest0-21swapper/107:15:021
3782965992618,4cyclictest0-21swapper/108:40:251
3782965992617,6cyclictest0-21swapper/109:15:201
3782961992622,2cyclictest13550irq/42-30be0000.ethernet12:25:130
3782961992619,4cyclictest3897968-21kthreadd12:40:000
3782961992619,4cyclictest3884346-21sendmail12:00:010
3782961992619,4cyclictest13550irq/42-30be0000.ethernet08:20:010
3782961992619,3cyclictest0-21swapper/011:00:020
3782973992517,5cyclictest0-21swapper/310:50:173
3782973992516,6cyclictest0-21swapper/310:00:013
3782973992515,6cyclictest0-21swapper/311:55:253
3782970992519,4cyclictest3788469-21kworker/u8:2+events_unbound07:26:212
3782970992518,5cyclictest3868480-21kworker/u8:1+events_unbound11:15:532
3782970992518,5cyclictest3868480-21kworker/u8:1+events_unbound11:15:532
3782970992517,5cyclictest145-21jbd2/mmcblk1p2-809:35:162
3782970992512,8cyclictest3873419-21grep11:25:252
3782965992519,3cyclictest0-21swapper/109:30:241
3782965992517,5cyclictest0-21swapper/110:35:201
3782965992516,6cyclictest3837413-21fschecks_count09:45:161
3782965992516,5cyclictest438-21cron09:40:001
3782965992515,7cyclictest0-21swapper/107:40:011
3782965992514,8cyclictest3830854-21cut09:25:241
3782961992519,3cyclictest0-21swapper/011:10:000
3782973992418,3cyclictest0-21swapper/309:50:233
3782973992416,6cyclictest3866741-21kworker/u8:2+events_unbound11:19:443
3782973992416,6cyclictest3866741-21kworker/u8:2+events_unbound11:19:443
3782973992415,5cyclictest0-21swapper/310:00:263
3782973992414,6cyclictest0-21swapper/309:40:253
378297099247,13cyclictest3865355-21cron11:05:002
3782970992418,3cyclictest0-21swapper/211:45:242
3782970992417,3cyclictest0-21swapper/211:25:002
3782965992418,3cyclictest0-21swapper/111:10:191
3782965992416,5cyclictest3824641-21auditctl09:10:001
3782965992416,5cyclictest3824641-21auditctl09:10:001
3782965992416,4cyclictest0-21swapper/108:25:161
3782965992416,4cyclictest0-21swapper/107:20:261
3782965992414,7cyclictest3795444-21ls07:45:001
3782961992417,3cyclictest0-21swapper/007:16:280
3782961992412,8cyclictest0-21swapper/010:05:260
378296199241,20cyclictest3867641-21grep11:10:180
378296199241,19cyclictest0-21swapper/012:04:410
378296199241,19cyclictest0-21swapper/010:21:020
378296199241,19cyclictest0-21swapper/008:46:070
378296199241,19cyclictest0-21swapper/007:36:410
3782973992315,5cyclictest0-21swapper/310:40:253
3782973992315,4cyclictest0-21swapper/311:25:263
3782973992314,6cyclictest3811765-21ntpq08:30:223
3782973992314,5cyclictest0-21swapper/311:40:253
3782973992314,5cyclictest0-21swapper/311:00:263
3782970992317,4cyclictest3803765-21unixbench_singl08:05:262
3782970992316,5cyclictest3786738-21kworker/u8:1+events_unbound07:33:402
3782970992315,5cyclictest0-21swapper/210:25:272
3782970992313,8cyclictest3821646-21cut09:00:172
3782965992317,4cyclictest3892755-21kworker/u8:0+events_unbound12:26:111
3782965992317,4cyclictest3800511-21kworker/u8:0+events_unbound08:39:201
3782965992316,5cyclictest3854531-21kworker/u8:1+events_unbound10:43:521
3782965992315,6cyclictest231ktimers/111:50:041
378296199234,17cyclictest0-21swapper/012:35:000
3782961992319,2cyclictest13550irq/42-30be0000.ethernet09:20:140
3782961992319,2cyclictest13550irq/42-30be0000.ethernet09:10:170
3782961992316,3cyclictest0-21swapper/011:45:470
3782961992316,3cyclictest0-21swapper/009:00:410
3782961992316,3cyclictest0-21swapper/007:50:160
3782961992315,4cyclictest3799498-21fschecks_time07:55:160
3782961992315,4cyclictest0-21swapper/009:50:270
3782961992314,6cyclictest3890737-21unixbench_singl12:15:250
3782961992312,8cyclictest3835772-21cat09:40:200
378296199231,18cyclictest0-21swapper/008:08:340
3782961992310,9cyclictest204-21dbus-daemon11:19:430
3782961992310,9cyclictest204-21dbus-daemon11:19:420
378296199230,19cyclictest0-21swapper/012:21:490
378296199230,19cyclictest0-21swapper/010:36:340
378296199230,19cyclictest0-21swapper/007:24:590
3782973992213,5cyclictest0-21swapper/308:20:143
3782973992210,10cyclictest3782954-21cyclictest07:45:133
378297099222,13cyclictest3795454-21idleruntime-cro07:45:002
3782970992215,3cyclictest0-21swapper/207:55:232
3782970992213,6cyclictest3865681-21sort11:05:142
378297099221,12cyclictest0-21swapper/212:10:172
3782965992215,4cyclictest0-21swapper/112:00:221
3782961992216,3cyclictest0-21swapper/009:05:210
3782961992216,3cyclictest0-21swapper/009:05:210
3782961992215,5cyclictest3838578-21kworker/u8:1+events_unbound09:49:320
3782961992214,4cyclictest0-21swapper/012:10:250
378296199221,19cyclictest0-21swapper/010:00:160
378296199221,19cyclictest0-21swapper/009:37:000
378296199220,18cyclictest0-21swapper/010:15:400
378296199220,18cyclictest0-21swapper/007:30:100
3782973992110,8cyclictest3800763-21munin-plugin-st08:00:003
378297099212,14cyclictest3854221-21unixbench_multi10:30:242
3782970992113,5cyclictest0-21swapper/210:10:262
3782970992111,7cyclictest164-21systemd-journal07:50:412
378297099211,14cyclictest3886024-21cron12:05:002
3782965992115,3cyclictest0-21swapper/111:30:141
3782965992113,6cyclictest3795912-21idleruntime07:45:181
3782965992110,8cyclictest3877698-21grep11:40:171
378296199210,3cyclictest0-21swapper/009:26:460
378297399201,10cyclictest3866082-21wc11:05:193
3782965991911,5cyclictest0-21swapper/108:50:141
3782961991912,4cyclictest3877538-21apt-get11:40:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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