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2026-08-14 - 21:43

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 Fri Aug 14, 2026 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3878449995747,7cyclictest3937621-21sendmail10:00:002
3878440995748,4cyclictest3893490-21fschecks_time07:50:150
3878444995140,7cyclictest3935419-21grep09:50:251
3878449994739,5cyclictest3931022-21kworker/u8:1+events_unbound09:44:452
3878449994739,5cyclictest3931022-21kworker/u8:1+events_unbound09:44:452
3878449994733,11cyclictest311ktimers/210:10:132
3878449994636,6cyclictest0-21swapper/208:00:012
3878440994636,6cyclictest3970206-21cron11:35:000
3878453994538,4cyclictest3885803-21latency_hist07:30:013
3878440994535,6cyclictest3898158-21cron08:05:010
3878453994432,8cyclictest3918442-21grep09:00:273
3878449994435,7cyclictest3920163-21kworker/u8:0+events_unbound09:19:342
3878444994431,8cyclictest0-21swapper/112:05:001
3878440994436,5cyclictest3899866-21auditctl08:10:010
3878453994336,5cyclictest3944399-21kworker/u8:0+events_unbound10:24:533
3878444994333,6cyclictest3981698-21unixbench_multi12:05:271
3878444994333,6cyclictest3981698-21unixbench_multi12:05:271
3878449994133,5cyclictest204-21dbus-daemon11:25:122
3878449994130,6cyclictest0-21swapper/211:55:182
3878449994128,10cyclictest311ktimers/211:10:122
3878449994033,4cyclictest3971922-21munin-run11:40:002
3878444994030,7cyclictest3917590-21fschecks_time09:00:171
3878449993928,6cyclictest3980452-21sh12:05:002
3878444993930,4cyclictest0-21swapper/110:45:001
3878453993831,4cyclictest3915435-21munin-plugin-st08:55:013
3878453993830,4cyclictest0-21swapper/311:20:003
3878453993827,7cyclictest3882376-21sh07:20:013
3878453993823,12cyclictest391ktimers/308:15:133
3878449993831,4cyclictest3889208-21munin-run07:40:012
3878453993730,5cyclictest3892720-21kworker/u8:1+events_unbound07:54:193
3878453993728,6cyclictest3957818-21grep10:55:263
3878449993729,4cyclictest0-21swapper/207:19:092
3878449993727,6cyclictest0-21swapper/212:25:262
3878444993727,6cyclictest0-21swapper/111:45:001
3878440993730,5cyclictest3971748-21kworker/u8:0+events_unbound11:40:170
3878453993625,7cyclictest0-21swapper/307:20:263
3878449993628,5cyclictest0-21swapper/211:50:002
3878444993629,4cyclictest3951237-21cron10:40:001
3878444993628,4cyclictest0-21swapper/108:04:191
3878444993627,5cyclictest0-21swapper/111:15:051
3878444993626,6cyclictest0-21swapper/111:40:001
3878444993625,7cyclictest0-21swapper/109:45:261
3878440993626,6cyclictest0-21swapper/009:25:290
3878440993625,6cyclictest0-21swapper/009:00:010
3878440993625,5cyclictest3920163-21kworker/u8:0+events_unbound09:14:340
3878453993526,6cyclictest0-21swapper/309:20:263
3878453993523,8cyclictest3879641-21grep07:10:263
3878449993528,3cyclictest0-21swapper/208:40:002
3878449993527,4cyclictest0-21swapper/210:30:252
3878444993524,7cyclictest0-21swapper/107:40:251
387844099359,5cyclictest131rcu_preempt10:55:120
387844099355,6cyclictest11-21ksoftirqd/012:15:130
3878440993528,4cyclictest3963380-21cron11:15:000
3878440993527,5cyclictest3976935-21kworker/u8:0+events_unbound12:00:220
3878440993517,5cyclictest3960757-21kworker/u8:0+events_unbound11:09:130
3878453993427,4cyclictest3896450-21cron08:00:013
3878453993427,4cyclictest0-21swapper/311:00:273
3878453993425,6cyclictest0-21swapper/310:10:263
3878453993424,4cyclictest0-21swapper/309:30:003
3878449993427,3cyclictest0-21swapper/208:25:252
3878449993426,5cyclictest3915092-21kworker/u8:0+events_unbound08:51:412
3878449993426,4cyclictest0-21swapper/210:40:012
3878449993417,10cyclictest3911694-21kworker/u8:2+events_unbound08:48:282
3878444993423,7cyclictest0-21swapper/112:30:241
3878440993426,5cyclictest0-21swapper/008:20:000
3878440993425,6cyclictest0-21swapper/007:45:000
3878440993424,4cyclictest0-21swapper/007:10:250
3878453993327,4cyclictest3973496-21kworker/u8:2+events_unbound11:55:203
387845399332,4cyclictest0-21swapper/310:35:113
3878453993323,7cyclictest391ktimers/308:35:143
3878453993322,7cyclictest3888717-21grep07:35:273
3878449993322,8cyclictest3894328-21grep07:50:242
3878444993324,5cyclictest0-21swapper/109:45:001
3878444993324,5cyclictest0-21swapper/109:45:001
3878444993323,6cyclictest0-21swapper/108:35:001
3878444993321,8cyclictest0-21swapper/110:10:261
3878444993321,7cyclictest0-21swapper/110:20:001
3878440993327,4cyclictest3990733-21kworker/u8:1+events_unbound12:35:260
3878440993326,3cyclictest0-21swapper/007:55:270
3878440993324,6cyclictest0-21swapper/008:55:020
3878440993324,5cyclictest3974873-21unixbench_multi11:45:250
3878453993224,6cyclictest3958517-21kworker/u8:1+events_unbound11:10:103
3878453993224,6cyclictest391ktimers/309:40:123
3878453993224,6cyclictest391ktimers/309:40:123
3878453993219,9cyclictest3980040-21grep12:00:273
3878449993226,4cyclictest3964707-21kworker/u8:2+events_unbound11:20:142
3878449993225,4cyclictest3934200-21latency_hist09:50:002
3878449993222,6cyclictest0-21swapper/212:40:002
3878444993225,4cyclictest3923945-21cron09:20:001
3878444993224,4cyclictest0-21swapper/108:10:161
3878444993223,6cyclictest0-21swapper/111:05:241
3878444993222,6cyclictest0-21swapper/110:30:251
3878444993219,8cyclictest1-21systemd11:55:181
387844099326,5cyclictest131rcu_preempt11:25:120
3878440993223,5cyclictest0-21swapper/010:05:010
3878440993223,5cyclictest0-21swapper/008:40:000
3878453993124,4cyclictest0-21swapper/312:30:153
3878453993123,4cyclictest0-21swapper/310:45:153
3878453993123,4cyclictest0-21swapper/307:30:293
3878453993117,7cyclictest0-21swapper/312:20:003
387845399311,14cyclictest0-21swapper/308:32:493
387845399310,5cyclictest0-21swapper/310:40:123
3878449993123,5cyclictest0-21swapper/208:10:262
3878449993123,4cyclictest0-21swapper/207:40:252
3878449993121,6cyclictest0-21swapper/211:15:242
3878444993123,5cyclictest3917131-21munin-run09:00:011
3878444993122,6cyclictest0-21swapper/109:25:291
3878444993121,7cyclictest0-21swapper/110:05:261
3878444993119,8cyclictest0-21swapper/108:55:011
3878444993119,7cyclictest0-21swapper/111:20:241
3878440993124,3cyclictest13550irq/42-30be0000.ethernet08:45:260
3878440993124,3cyclictest0-21swapper/012:00:000
3878440993123,4cyclictest0-21swapper/008:20:260
3878440993122,4cyclictest0-21swapper/010:09:480
3878453993022,5cyclictest3971933-21idleruntime-cro11:40:013
387845399301,6cyclictest0-21swapper/312:35:113
3878449993023,4cyclictest0-21swapper/212:15:272
3878444993022,5cyclictest0-21swapper/110:55:171
3878444993020,7cyclictest0-21swapper/109:20:251
3878444993020,6cyclictest0-21swapper/107:15:001
3878444993019,8cyclictest3982617-21fschecks_time12:10:171
3878440993025,3cyclictest3966035-21sendmail_mailqu11:20:220
3878440993021,4cyclictest0-21swapper/007:50:000
3878440993020,6cyclictest0-21swapper/008:30:260
3878440993014,13cyclictest11-21ksoftirqd/008:10:130
3878453992923,3cyclictest3944422-21kthreadd10:20:003
3878453992922,5cyclictest3911694-21kworker/u8:2+events_unbound09:09:343
3878453992922,4cyclictest0-21swapper/310:05:163
3878453992922,4cyclictest0-21swapper/308:55:303
3878453992921,6cyclictest3937264-21kworker/u8:1+events_unbound09:59:413
3878453992921,4cyclictest0-21swapper/311:20:243
3878453992918,7cyclictest3930772-21sh09:40:003
3878449992920,7cyclictest3927345-21kworker/u8:1+events_unbound09:34:412
3878449992920,6cyclictest3954865-21auditctl10:50:002
3878449992920,5cyclictest0-21swapper/211:40:152
3878444992922,4cyclictest0-21swapper/110:45:251
3878444992922,3cyclictest0-21swapper/112:20:161
3878444992921,4cyclictest0-21swapper/108:45:261
3878444992918,7cyclictest0-21swapper/108:30:001
3878444992918,7cyclictest0-21swapper/108:15:281
3878440992923,3cyclictest13550irq/42-30be0000.ethernet11:00:280
3878440992922,3cyclictest0-21swapper/007:20:260
3878453992821,5cyclictest3887294-21kworker/u8:0+events_unbound07:45:573
3878453992821,3cyclictest0-21swapper/311:40:153
3878453992820,4cyclictest0-21swapper/311:45:253
3878453992820,4cyclictest0-21swapper/308:00:163
3878453992818,6cyclictest0-21swapper/308:29:223
3878453992818,5cyclictest0-21swapper/312:10:253
3878453992817,7cyclictest0-21swapper/310:35:003
3878453992811,6cyclictest3920163-21kworker/u8:0+events_unbound09:32:203
387844999283,5cyclictest131rcu_preempt09:50:122
3878449992821,5cyclictest3953064-21kworker/u8:1+events_unbound10:44:412
3878449992820,5cyclictest3878434-21cyclictest09:00:012
3878449992818,7cyclictest3956124-21runrttasks10:50:242
3878449992815,8cyclictest3883640-21grep07:20:262
3878444992821,5cyclictest3966459-21kworker/u8:0+events_unbound11:25:141
3878444992821,4cyclictest3938060-21fschecks_time10:00:151
3878444992820,5cyclictest0-21swapper/107:30:011
3878444992819,6cyclictest0-21swapper/108:40:261
3878444992818,6cyclictest0-21swapper/112:15:251
3878444992818,6cyclictest0-21swapper/111:00:271
3878440992822,4cyclictest3887294-21kworker/u8:0+events_unbound07:39:140
3878440992820,5cyclictest3942585-21kworker/u8:1+events_unbound10:29:580
3878440992820,5cyclictest0-21swapper/010:20:000
3878440992818,5cyclictest0-21swapper/009:05:250
3878453992720,3cyclictest0-21swapper/310:50:153
3878453992717,5cyclictest438-21cron11:10:023
3878453992717,5cyclictest0-21swapper/309:15:193
3878453992715,7cyclictest438-21cron10:05:013
3878453992711,9cyclictest204-21dbus-daemon08:44:253
3878449992721,4cyclictest3911694-21kworker/u8:2+events_unbound09:04:422
3878449992719,5cyclictest0-21swapper/210:55:172
3878449992718,6cyclictest3960852-21grep11:05:212
3878449992718,6cyclictest0-21swapper/208:05:012
3878449992718,5cyclictest0-21swapper/209:05:142
3878449992717,7cyclictest0-21swapper/207:25:202
3878449992713,4cyclictest3942585-21kworker/u8:1+events_unbound10:29:272
3878444992720,4cyclictest3975228-21kworker/u8:1+events_unbound11:50:191
3878444992720,3cyclictest0-21swapper/107:40:011
3878444992719,4cyclictest3956565-21auditctl10:55:001
3878444992717,7cyclictest0-21swapper/107:25:011
3878444992717,6cyclictest0-21swapper/111:50:001
3878444992717,6cyclictest0-21swapper/109:10:271
3878444992717,6cyclictest0-21swapper/107:50:251
3878444992715,8cyclictest231ktimers/109:55:131
3878440992721,4cyclictest3935147-21sendmail_mailtr09:50:230
3878440992719,5cyclictest0-21swapper/012:30:240
3878440992717,6cyclictest0-21swapper/009:15:260
3878440992717,6cyclictest0-21swapper/009:05:000
387844099271,23cyclictest0-21swapper/012:25:130
387844099271,11cyclictest3882374-21cron07:20:010
387845399263,12cyclictest0-21swapper/312:25:233
387845399262,14cyclictest0-21swapper/309:46:533
3878453992615,8cyclictest3987021-21grep12:20:263
3878453992613,9cyclictest391ktimers/308:05:133
3878453992612,5cyclictest3968239-21kworker/u8:2+events_unbound11:31:213
387845399261,13cyclictest0-21swapper/312:08:303
387845399261,13cyclictest0-21swapper/312:08:303
387845399260,12cyclictest0-21swapper/310:27:243
3878449992620,3cyclictest3930786-21cron09:40:002
3878449992620,3cyclictest0-21swapper/207:50:012
3878449992619,5cyclictest3975228-21kworker/u8:1+events_unbound11:50:122
3878449992619,5cyclictest3958517-21kworker/u8:1+events_unbound11:30:172
3878449992618,4cyclictest0-21swapper/212:30:162
3878444992615,7cyclictest0-21swapper/108:35:271
387844499261,14cyclictest0-21swapper/109:30:121
387844099269,11cyclictest3920163-21kworker/u8:0+events_unbound09:37:310
3878440992620,4cyclictest3878434-21cyclictest08:25:170
3878440992619,3cyclictest0-21swapper/011:20:000
3878440992614,5cyclictest3932474-21kworker/u8:3+events_unbound09:46:340
3878440992612,8cyclictest131rcu_preempt09:59:480
3878440992612,7cyclictest131rcu_preempt10:45:200
3878453992517,5cyclictest3892720-21kworker/u8:1+events_unbound08:20:153
3878453992516,6cyclictest3911694-21kworker/u8:2+events_unbound09:11:413
387845399251,13cyclictest0-21swapper/307:40:253
3878449992519,4cyclictest3937264-21kworker/u8:1+events_unbound10:03:412
3878449992518,5cyclictest3978686-21kworker/u8:1+events_unbound12:10:212
3878449992518,3cyclictest0-21swapper/207:10:252
3878449992517,5cyclictest0-21swapper/211:00:172
3878449992513,7cyclictest3925262-21sed09:20:252
3878444992517,4cyclictest0-21swapper/108:05:171
3878444992515,7cyclictest3904523-21unixbench_multi08:20:261
387844099258,8cyclictest131rcu_preempt09:21:150
3878440992519,4cyclictest3942585-21kworker/u8:1+events_unbound10:37:170
3878440992519,4cyclictest3887294-21kworker/u8:0+events_unbound07:34:130
3878440992517,5cyclictest3976310-21mailstats11:50:230
3878440992517,5cyclictest0-21swapper/010:40:230
387844099251,5cyclictest131rcu_preempt09:30:120
3878440992515,6cyclictest0-21swapper/010:10:260
3878440992512,7cyclictest3973496-21kworker/u8:2+events_unbound12:20:150
387844099251,22cyclictest0-21swapper/009:40:130
387844099251,22cyclictest0-21swapper/009:40:120
3878453992418,3cyclictest0-21swapper/309:50:133
3878453992417,4cyclictest3976568-21unixbench_multi11:50:253
3878453992417,3cyclictest0-21swapper/308:15:013
387845399241,11cyclictest3913417-21runrttasks08:46:263
3878449992418,3cyclictest0-21swapper/208:40:162
3878449992416,5cyclictest0-21swapper/210:20:262
3878449992414,7cyclictest3921831-21grep09:10:272
3878449992411,7cyclictest131rcu_preempt12:20:262
3878444992418,3cyclictest0-21swapper/107:15:141
3878444992417,4cyclictest0-21swapper/112:35:251
3878444992417,4cyclictest0-21swapper/112:30:001
3878444992415,6cyclictest0-21swapper/107:30:291
3878440992417,4cyclictest13550irq/42-30be0000.ethernet12:10:250
3878440992414,7cyclictest3945704-21unixbench_singl10:20:260
387844099241,19cyclictest0-21swapper/012:07:040
387844099241,19cyclictest0-21swapper/012:07:040
3878453992313,7cyclictest391ktimers/311:25:123
3878449992318,3cyclictest3943485-21ntp_kernel_pll_10:15:212
3878449992317,3cyclictest0-21swapper/208:15:172
3878449992317,3cyclictest0-21swapper/208:05:202
387844999231,6cyclictest3905004-21idleruntime-cro08:25:002
3878449992315,5cyclictest0-21swapper/210:05:252
3878449992315,4cyclictest0-21swapper/207:34:132
3878449992314,7cyclictest311ktimers/208:30:132
3878444992313,8cyclictest3946175-21sed10:25:011
3878444992313,6cyclictest0-21swapper/111:30:251
3878440992316,5cyclictest0-21swapper/008:43:450
3878440992316,3cyclictest0-21swapper/010:31:270
387844099231,20cyclictest0-21swapper/010:54:130
387844099230,19cyclictest0-21swapper/011:37:340
3878449992215,5cyclictest3973496-21kworker/u8:2+events_unbound12:07:052
3878449992215,5cyclictest3973496-21kworker/u8:2+events_unbound12:07:052
3878444992215,4cyclictest0-21swapper/111:10:241
3878444992214,5cyclictest231ktimers/110:25:151
3878444992214,4cyclictest3919258-21fschecks_time09:05:151
3878440992213,6cyclictest3884596-21if_err_eth007:25:200
3878444992113,5cyclictest0-21swapper/109:35:141
3878444992012,5cyclictest231ktimers/107:55:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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