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2026-08-21 - 09:08

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 21, 2026 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
228641995445,5cyclictest241122-21munin-plugin-st19:45:012
228645995243,5cyclictest315744-21idleruntime-cro23:20:003
228645995239,8cyclictest235739-21kworker/u8:1+events_unbound19:27:083
228636994432,9cyclictest232594-21sendmail19:20:001
228645994230,9cyclictest391ktimers/321:55:113
228645994230,5cyclictest282334-21kworker/u8:0+events_unbound21:44:423
228641994235,4cyclictest230259-21sh19:15:002
228641994235,4cyclictest230259-21sh19:15:002
228636994231,8cyclictest303461-21kworker/u8:2+events_unbound23:00:121
228645994033,4cyclictest265797-21fschecks_count20:55:163
228645994032,5cyclictest332997-21sh00:10:003
228636994031,6cyclictest231ktimers/123:40:111
228636994029,6cyclictest0-21swapper/123:50:261
228645993931,6cyclictest252982-21kworker/u8:1+events_unbound20:27:183
228645993931,6cyclictest252982-21kworker/u8:1+events_unbound20:27:183
228641993928,7cyclictest253038-21auditctl20:20:002
228645993830,5cyclictest322776-21sendmail23:40:003
228645993828,5cyclictest0-21swapper/322:30:163
228645993828,5cyclictest0-21swapper/300:00:153
228645993823,9cyclictest131rcu_preempt23:53:493
228641993830,5cyclictest238926-21unixbench_multi19:35:232
228636993831,4cyclictest277356-21apt21:30:001
228636993831,4cyclictest277356-21apt21:30:001
228636993828,5cyclictest0-21swapper/119:40:151
228645993724,9cyclictest391ktimers/319:55:133
228645993720,11cyclictest131rcu_preempt21:52:473
228636993728,6cyclictest278858-21unixbench_singl21:30:271
228645993628,6cyclictest235739-21kworker/u8:1+events_unbound19:44:423
228645993622,4cyclictest131rcu_preempt22:00:263
228641993630,4cyclictest331000-21kworker/u8:1+events_unbound00:17:562
228641993630,4cyclictest331000-21kworker/u8:1+events_unbound00:17:562
228641993629,3cyclictest0-21swapper/222:20:002
228641993629,3cyclictest0-21swapper/222:20:002
228641993629,3cyclictest0-21swapper/219:20:002
228641993628,4cyclictest0-21swapper/223:55:262
228636993625,6cyclictest0-21swapper/121:10:161
228632993628,5cyclictest294648-21sendmail-msp22:20:000
228632993628,5cyclictest294648-21sendmail-msp22:20:000
228632993627,6cyclictest0-21swapper/023:20:000
228645993529,4cyclictest308353-21kworker/u8:1+events_unbound22:56:403
228645993529,3cyclictest0-21swapper/300:25:283
228645993527,4cyclictest0-21swapper/323:20:243
228645993521,8cyclictest131rcu_preempt19:50:213
228636993523,7cyclictest0-21swapper/120:40:251
228636993522,8cyclictest0-21swapper/121:20:001
228632993526,4cyclictest0-21swapper/023:47:520
228632993525,7cyclictest334221-21grep00:10:260
228645993428,4cyclictest251194-21kworker/u8:2+events_unbound20:23:423
228645993426,4cyclictest0-21swapper/322:15:153
228645993426,4cyclictest0-21swapper/322:15:153
228645993422,8cyclictest325752-21grep23:45:273
228645993422,4cyclictest0-21swapper/323:00:163
228645993411,6cyclictest40-21ksoftirqd/300:20:163
228636993427,4cyclictest270090-21unixbench_singl21:05:261
228636993425,6cyclictest329103-21unixbench_multi23:55:261
228636993425,4cyclictest0-21swapper/122:30:161
228632993427,4cyclictest121ktimers/023:20:100
228632993423,8cyclictest121ktimers/019:45:120
22863299341,29cyclictest0-21swapper/023:30:120
228645993325,4cyclictest0-21swapper/321:35:283
228645993323,7cyclictest0-21swapper/320:15:003
228645993323,4cyclictest131rcu_preempt21:08:573
228645993315,11cyclictest131rcu_preempt00:10:013
228645993313,10cyclictest245843-21kworker/u8:0-events_freezable_power_20:02:203
228645993311,6cyclictest381rcuc/323:56:323
228645993311,12cyclictest131rcu_preempt20:40:003
228641993325,5cyclictest331692-21fschecks_count00:05:182
228641993325,4cyclictest0-21swapper/220:10:242
228641993322,6cyclictest0-21swapper/219:30:242
228636993327,4cyclictest289160-21kworker/u8:0+events_unbound22:12:411
228636993327,4cyclictest289160-21kworker/u8:0+events_unbound22:12:411
228636993325,4cyclictest0-21swapper/100:25:281
228636993324,5cyclictest0-21swapper/100:39:591
228636993323,6cyclictest0-21swapper/121:20:251
228636993321,7cyclictest0-21swapper/122:35:251
228636993321,7cyclictest0-21swapper/122:35:251
228632993325,4cyclictest0-21swapper/022:07:400
228632993322,7cyclictest308911-21grep23:00:010
22864599325,8cyclictest40-21ksoftirqd/319:15:033
22864599324,8cyclictest40-21ksoftirqd/321:20:163
228645993221,4cyclictest131rcu_preempt22:05:123
228645993221,4cyclictest131rcu_preempt21:34:483
228645993216,10cyclictest131rcu_preempt19:34:563
228645993212,5cyclictest131rcu_preempt22:45:003
228645993211,6cyclictest40-21ksoftirqd/321:30:013
228645993211,6cyclictest40-21ksoftirqd/321:30:013
228641993220,8cyclictest311ktimers/222:20:142
228636993221,6cyclictest0-21swapper/121:50:261
228636993219,9cyclictest0-21swapper/122:55:151
228632993222,7cyclictest121ktimers/021:10:130
22864599319,16cyclictest40-21ksoftirqd/320:32:253
22864599313,7cyclictest40-21ksoftirqd/321:20:013
228645993120,5cyclictest241333-21kworker/u8:0+events_unbound19:46:423
228645993119,6cyclictest131rcu_preempt19:10:263
228645993119,6cyclictest131rcu_preempt19:10:263
228645993119,4cyclictest131rcu_preempt21:45:223
228645993113,9cyclictest131rcu_preempt00:15:483
228645993113,9cyclictest131rcu_preempt00:15:483
228645993112,11cyclictest131rcu_preempt23:05:133
228645993111,5cyclictest131rcu_preempt00:30:243
228641993123,4cyclictest0-21swapper/200:20:262
228641993122,4cyclictest0-21swapper/222:10:172
228641993122,4cyclictest0-21swapper/222:10:172
228641993122,4cyclictest0-21swapper/220:00:012
228636993124,3cyclictest0-21swapper/120:35:251
228636993121,6cyclictest0-21swapper/119:30:241
228632993122,7cyclictest312322-21cut23:10:000
228632993121,7cyclictest266637-21grep20:55:250
22864599309,4cyclictest391ktimers/322:35:113
22864599309,4cyclictest391ktimers/322:35:113
22864599303,9cyclictest40-21ksoftirqd/323:25:213
228645993020,7cyclictest391ktimers/320:45:133
228645993020,7cyclictest381rcuc/320:52:023
228645993018,4cyclictest131rcu_preempt22:13:083
228645993018,4cyclictest131rcu_preempt22:13:083
228645993018,4cyclictest131rcu_preempt20:07:063
228645993015,8cyclictest131rcu_preempt22:22:173
228645993013,9cyclictest131rcu_preempt21:10:123
228645993012,10cyclictest131rcu_preempt23:30:113
228645993011,5cyclictest131rcu_preempt22:45:213
228641993023,4cyclictest0-21swapper/221:00:012
228641993023,3cyclictest0-21swapper/220:20:252
228641993023,3cyclictest0-21swapper/220:05:272
228636993020,6cyclictest0-21swapper/119:25:001
228636993020,6cyclictest0-21swapper/100:10:001
228632993023,4cyclictest248380-21fschecks_time20:05:170
228632993022,4cyclictest0-21swapper/020:40:010
22864599299,13cyclictest40-21ksoftirqd/322:25:283
22864599299,13cyclictest324477-21munin-run23:45:003
228645992917,3cyclictest131rcu_preempt19:36:213
228645992916,6cyclictest251194-21kworker/u8:2+events_unbound20:16:293
228641992923,3cyclictest0-21swapper/223:50:002
228641992923,3cyclictest0-21swapper/221:40:242
228641992919,7cyclictest0-21swapper/223:55:002
228641992918,7cyclictest0-21swapper/222:30:012
228636992922,3cyclictest0-21swapper/123:35:271
228636992921,6cyclictest24-21ksoftirqd/122:50:121
228636992921,4cyclictest0-21swapper/122:40:151
228636992921,4cyclictest0-21swapper/122:05:271
228636992921,4cyclictest0-21swapper/100:20:171
228632992924,2cyclictest13550irq/42-30be0000.ethernet23:25:160
228632992921,4cyclictest0-21swapper/021:45:260
22864599286,7cyclictest40-21ksoftirqd/322:50:113
22864599285,5cyclictest40-21ksoftirqd/323:10:243
22864599284,6cyclictest40-21ksoftirqd/320:40:183
228645992818,7cyclictest391ktimers/319:20:143
228641992822,4cyclictest263123-21kworker/u8:3+events_unbound20:50:412
228641992816,7cyclictest0-21swapper/219:50:262
228636992821,5cyclictest287416-21kworker/u8:3+events_unbound21:57:391
228636992821,4cyclictest239409-21sendmail19:40:011
228636992821,3cyclictest0-21swapper/123:20:231
228636992820,4cyclictest0-21swapper/120:25:241
228636992820,4cyclictest0-21swapper/120:25:231
228636992820,4cyclictest0-21swapper/119:55:011
228636992819,6cyclictest0-21swapper/100:30:161
228636992818,6cyclictest0-21swapper/120:30:171
228632992821,4cyclictest268589-21kworker/u8:0+events_unbound21:02:250
228632992812,12cyclictest121ktimers/021:20:120
228632992810,14cyclictest239424-21idleruntime-cro19:40:010
22864599279,10cyclictest40-21ksoftirqd/321:00:203
22864599276,6cyclictest40-21ksoftirqd/300:35:193
228641992721,4cyclictest268589-21kworker/u8:0+events_unbound21:15:502
228636992720,5cyclictest24-21ksoftirqd/123:05:121
228636992720,4cyclictest326174-21kthreadd23:50:001
228636992720,3cyclictest0-21swapper/122:45:221
228636992719,4cyclictest0-21swapper/122:25:271
228636992718,5cyclictest0-21swapper/121:40:261
228636992717,6cyclictest0-21swapper/121:35:221
228632992720,4cyclictest0-21swapper/020:45:260
228632992719,4cyclictest0-21swapper/021:25:260
228632992719,4cyclictest0-21swapper/021:25:250
228632992717,7cyclictest280981-21run-parts21:40:010
228632992714,10cyclictest0-21swapper/020:00:010
228641992620,3cyclictest0-21swapper/222:35:212
228641992620,3cyclictest0-21swapper/222:35:212
228641992619,5cyclictest275519-21kworker/u8:2+events_unbound21:30:042
228641992619,5cyclictest259775-21kworker/u8:2+events_unbound20:45:272
228641992619,4cyclictest0-21swapper/223:40:252
228641992619,3cyclictest0-21swapper/221:10:262
228641992617,6cyclictest0-21swapper/222:45:172
228641992616,6cyclictest308244-21grep22:55:252
228636992620,4cyclictest252101-21tr20:15:201
228636992618,5cyclictest331000-21kworker/u8:1+events_unbound00:02:551
228636992618,4cyclictest0-21swapper/121:00:161
228636992618,4cyclictest0-21swapper/120:10:251
228636992617,6cyclictest24-21ksoftirqd/119:45:111
228636992617,6cyclictest0-21swapper/100:15:001
228632992620,3cyclictest0-21swapper/021:30:260
228632992619,3cyclictest0-21swapper/023:40:000
228632992619,3cyclictest0-21swapper/022:30:010
228632992619,3cyclictest0-21swapper/022:00:270
228632992618,5cyclictest274185-1kworker/0:2H+mmc_complete22:00:000
22864199258,4cyclictest131rcu_preempt23:15:002
228641992519,3cyclictest0-21swapper/200:35:262
228641992518,5cyclictest339582-21kworker/u8:1+events_unbound00:30:252
228641992518,5cyclictest252982-21kworker/u8:1+events_unbound20:28:192
228641992518,5cyclictest252982-21kworker/u8:1+events_unbound20:28:192
228641992517,5cyclictest314774-21ntpq23:15:212
228641992516,4cyclictest0-21swapper/220:30:262
228641992515,7cyclictest303589-21awk22:45:002
228641992515,7cyclictest275252-21grep21:20:252
228636992519,4cyclictest294231-21kworker/u8:2+events_unbound22:22:431
228636992519,3cyclictest293499-21kernelversion22:15:171
228636992519,3cyclictest293499-21kernelversion22:15:171
228636992517,5cyclictest0-21swapper/123:25:241
228636992517,4cyclictest0-21swapper/119:25:171
228636992514,8cyclictest245793-21grep19:55:261
228632992518,4cyclictest0-21swapper/000:30:260
228632992518,3cyclictest0-21swapper/000:00:000
228632992517,5cyclictest0-21swapper/022:40:150
228632992515,6cyclictest335928-21grep00:15:270
228632992515,6cyclictest335928-21grep00:15:270
228641992418,3cyclictest0-21swapper/223:25:172
228641992416,4cyclictest0-21swapper/222:00:002
228641992415,6cyclictest0-21swapper/221:45:262
228636992417,3cyclictest0-21swapper/120:00:171
228636992415,6cyclictest0-21swapper/120:05:271
228636992414,6cyclictest0-21swapper/119:15:011
22863299244,16cyclictest121ktimers/020:00:260
228632992418,3cyclictest0-21swapper/019:30:220
228632992415,5cyclictest0-21swapper/021:05:260
228632992412,8cyclictest204-21dbus-daemon00:37:490
22863299241,19cyclictest0-21swapper/023:14:370
22863299241,19cyclictest0-21swapper/021:44:120
22863299241,19cyclictest0-21swapper/021:16:000
22863299241,19cyclictest0-21swapper/000:08:400
22863299240,20cyclictest0-21swapper/022:11:520
22863299240,20cyclictest0-21swapper/022:11:520
228641992317,3cyclictest0-21swapper/223:35:182
228641992317,3cyclictest0-21swapper/222:55:012
228641992317,3cyclictest0-21swapper/222:05:172
228641992317,3cyclictest0-21swapper/221:50:262
228641992317,3cyclictest0-21swapper/220:35:152
228641992317,3cyclictest0-21swapper/219:45:222
228641992316,4cyclictest277572-21apt-key21:30:012
228641992316,4cyclictest277572-21apt-key21:30:012
228641992316,3cyclictest0-21swapper/223:35:002
228641992315,4cyclictest438-21cron20:45:012
228641992314,6cyclictest0-21swapper/200:10:262
228636992316,4cyclictest0-21swapper/100:20:001
228636992316,4cyclictest0-21swapper/100:20:001
228636992315,5cyclictest315359-21kworker/u8:0+events_unbound23:34:411
228636992315,5cyclictest0-21swapper/123:15:001
228636992315,5cyclictest0-21swapper/120:50:251
228636992311,7cyclictest0-21swapper/120:55:231
228632992318,3cyclictest13550irq/42-30be0000.ethernet23:00:050
228632992317,3cyclictest0-21swapper/020:15:150
228632992317,2cyclictest13550irq/42-30be0000.ethernet23:40:250
228632992317,2cyclictest0-21swapper/022:20:200
228632992316,4cyclictest243258-21fschecks_time19:50:160
228632992316,3cyclictest0-21swapper/020:10:280
228632992315,5cyclictest121ktimers/020:35:010
22863299231,4cyclictest285192-21ntp_states21:50:230
228632992311,9cyclictest204-21dbus-daemon22:47:440
22863299231,18cyclictest0-21swapper/022:34:330
22863299231,18cyclictest0-21swapper/019:21:370
22863299231,18cyclictest0-21swapper/000:25:020
228641992216,3cyclictest0-21swapper/200:30:002
228641992216,3cyclictest0-21swapper/200:00:132
228641992214,5cyclictest311ktimers/223:05:012
228641992214,5cyclictest311ktimers/221:36:502
228641992211,8cyclictest316527-21cut23:20:172
228636992213,5cyclictest0-21swapper/119:10:151
228632992218,2cyclictest13550irq/42-30be0000.ethernet19:10:170
228632992218,2cyclictest13550irq/42-30be0000.ethernet19:10:170
228632992216,4cyclictest0-21swapper/000:20:020
228632992216,3cyclictest0-21swapper/019:27:080
228632992215,3cyclictest0-21swapper/022:36:400
228632992215,3cyclictest0-21swapper/022:36:400
228632992215,3cyclictest0-21swapper/020:25:080
228632992215,3cyclictest0-21swapper/020:25:080
228632992215,3cyclictest0-21swapper/019:40:240
22863299220,20cyclictest0-21swapper/020:50:130
228641992115,3cyclictest0-21swapper/220:00:182
228641992114,5cyclictest145-21jbd2/mmcblk1p2-819:20:162
22863699212,12cyclictest0-21swapper/123:17:471
228636992114,3cyclictest0-21swapper/120:45:161
228632992114,4cyclictest0-21swapper/020:40:260
228632992113,4cyclictest0-21swapper/020:20:250
22863299211,18cyclictest0-21swapper/000:01:440
228641992013,5cyclictest311ktimers/222:02:002
228641992013,5cyclictest296223-21kworker/u8:1+events_unbound22:31:072
228641992013,4cyclictest235994-21idleruntime-cro19:30:012
22864199201,13cyclictest268819-21cron21:05:012
22863699209,8cyclictest253852-21ntp_states20:20:211
228632992014,4cyclictest326486-21cpuspeed23:50:150
228636991912,5cyclictest53-21kcompactd022:00:201
228641991811,5cyclictest311ktimers/223:05:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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