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2026-07-16 - 03:55

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 792 highest latencies:
System rackbslot5s.osadl.org (updated Thu Jul 16, 2026 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
845029995444,6cyclictest901588-21unixbench_multi21:50:261
845037995243,5cyclictest910118-21unixbench_multi22:15:253
845037995243,5cyclictest910118-21unixbench_multi22:15:253
845034995241,7cyclictest958803-21sendmail00:40:002
845034995237,11cyclictest311ktimers/221:35:142
845029994636,7cyclictest890135-21munin-plugin-st21:20:011
845025994635,9cyclictest121ktimers/019:10:130
845029994431,10cyclictest231ktimers/122:00:131
845034994331,9cyclictest311ktimers/219:50:142
845025994336,4cyclictest926186-21munin-plugin-st23:05:000
845025994232,6cyclictest0-21swapper/021:45:010
845029994131,7cyclictest0-21swapper/120:20:011
845029994127,10cyclictest231ktimers/121:55:131
845025994135,4cyclictest944914-21kworker/u8:0+events_unbound00:13:390
845025993931,4cyclictest0-21swapper/020:55:000
845025993928,7cyclictest924475-21sendmail23:00:000
845025993824,10cyclictest848533-21grep19:15:240
845029993729,5cyclictest924460-21munin-plugin-st23:00:001
845025993729,6cyclictest853861-21kworker/u8:0+events_unbound19:40:490
845037993630,4cyclictest893558-21idleruntime-cro21:30:013
845029993627,5cyclictest0-21swapper/119:55:261
845029993618,13cyclictest231ktimers/122:50:111
845025993625,7cyclictest0-21swapper/021:35:270
845025993625,5cyclictest892400-21kworker/u8:0+events_unbound21:31:150
845034993527,4cyclictest0-21swapper/200:03:242
845034993527,4cyclictest0-21swapper/200:03:242
845034993525,6cyclictest0-21swapper/221:20:012
845034993525,6cyclictest0-21swapper/200:25:262
845029993527,4cyclictest0-21swapper/122:30:161
845025993525,6cyclictest0-21swapper/021:45:240
84502599351,5cyclictest131rcu_preempt22:25:120
845034993426,4cyclictest0-21swapper/223:00:242
845034993426,4cyclictest0-21swapper/222:35:262
845029993426,4cyclictest0-21swapper/120:05:261
845029993424,7cyclictest884600-21grep21:00:241
84502999341,10cyclictest8712272wc20:25:011
845025993426,4cyclictest0-21swapper/023:25:250
845025993421,10cyclictest893556-21grep21:30:010
84502599341,5cyclictest131rcu_preempt19:20:120
845037993324,6cyclictest891843-21sh21:25:003
845037993320,9cyclictest391ktimers/322:50:123
845029993326,4cyclictest0-21swapper/119:50:171
845029993325,4cyclictest0-21swapper/122:10:171
845029993325,4cyclictest0-21swapper/122:10:171
845029993325,4cyclictest0-21swapper/100:25:151
845029993324,5cyclictest0-21swapper/121:20:261
845029993324,5cyclictest0-21swapper/100:10:171
845029993323,7cyclictest943428-21sh23:55:001
845029993322,7cyclictest946447-21unixbench_singl00:00:251
845029993322,7cyclictest946447-21unixbench_singl00:00:251
845029993317,12cyclictest231ktimers/100:05:141
845029993310,6cyclictest24-21ksoftirqd/119:45:161
845025993324,4cyclictest0-21swapper/021:05:190
845025993323,6cyclictest910167-21grep22:15:260
845025993323,6cyclictest910167-21grep22:15:260
84502599331,5cyclictest131rcu_preempt19:45:120
845037993225,3cyclictest0-21swapper/319:20:253
845037993224,6cyclictest871051-21kworker/u8:3+events_unbound20:25:593
845037993223,4cyclictest0-21swapper/321:40:173
845037993220,7cyclictest899904-21grep21:45:253
845034993225,4cyclictest924465-21cut23:00:002
84502999329,4cyclictest24-21ksoftirqd/123:45:011
845029993224,5cyclictest917641-21sendmail22:40:001
845029993223,5cyclictest0-21swapper/121:45:151
845029993220,8cyclictest912314-21auditctl22:25:001
845029993210,5cyclictest221rcuc/119:20:011
845025993222,6cyclictest932533-21grep23:20:260
84503799314,6cyclictest131rcu_preempt23:25:133
845037993125,3cyclictest0-21swapper/319:15:243
84503799312,4cyclictest131rcu_preempt00:05:133
845037993123,6cyclictest846392-21kworker/u8:3+events_unbound19:25:473
845037993123,5cyclictest0-21swapper/320:40:003
845037993122,6cyclictest0-21swapper/323:25:003
845037993120,7cyclictest896539-21grep21:35:273
845034993123,4cyclictest0-21swapper/223:35:172
845034993122,6cyclictest948553-21sh00:10:002
845034993122,4cyclictest0-21swapper/220:50:262
845034993121,7cyclictest53-21kcompactd022:00:272
845029993125,4cyclictest951989-21sendmail00:20:011
845029993122,5cyclictest0-21swapper/123:30:011
845029993113,3cyclictest0-21swapper/120:30:221
845025993123,5cyclictest0-21swapper/022:20:240
845025993113,4cyclictest121ktimers/000:15:240
845037993023,4cyclictest903797-21sendmail22:00:003
845037993023,4cyclictest0-21swapper/300:25:263
845037993022,4cyclictest0-21swapper/320:10:243
845037993021,6cyclictest0-21swapper/323:55:233
845037993020,7cyclictest0-21swapper/322:30:253
845037993019,7cyclictest204-21dbus-daemon23:47:223
845034993024,3cyclictest0-21swapper/222:45:152
845034993023,4cyclictest882869-21head20:55:252
845034993023,3cyclictest0-21swapper/222:05:242
845034993022,4cyclictest0-21swapper/221:55:262
84503499302,15cyclictest131rcu_preempt20:10:102
845034993020,6cyclictest0-21swapper/222:40:252
84502999309,5cyclictest24-21ksoftirqd/123:30:241
84502999307,5cyclictest0-21swapper/122:15:241
84502999307,5cyclictest0-21swapper/122:15:231
84502999306,5cyclictest0-21swapper/100:32:391
845029993018,4cyclictest131rcu_preempt22:08:441
845029993010,5cyclictest24-21ksoftirqd/119:40:021
845025993024,3cyclictest0-21swapper/023:40:010
845025993023,3cyclictest0-21swapper/000:30:240
845025993020,6cyclictest955386-21ls00:30:000
845037992922,4cyclictest888009-21unixbench_singl21:10:273
845037992922,4cyclictest0-21swapper/323:30:263
845037992921,5cyclictest0-21swapper/321:30:173
845037992921,4cyclictest0-21swapper/319:55:163
845037992921,4cyclictest0-21swapper/319:55:013
845037992919,6cyclictest0-21swapper/320:35:003
845037992917,4cyclictest913648-21kworker/u8:1+events_unbound22:30:013
845034992922,4cyclictest953680-21debian-sa100:25:002
845034992920,6cyclictest948928-21grep00:10:172
845034992918,7cyclictest846788-21cat19:15:012
845029992920,4cyclictest0-21swapper/123:55:101
845029992919,7cyclictest846751-21apt19:15:011
845029992919,6cyclictest0-21swapper/120:40:001
845029992910,5cyclictest0-21swapper/123:15:251
845025992923,4cyclictest934413-21kworker/u8:1+events_unbound23:50:060
845025992919,7cyclictest922744-21cron22:55:000
845025992918,8cyclictest958788-21sendmail00:40:000
845037992822,3cyclictest0-21swapper/320:45:003
845037992821,4cyclictest0-21swapper/323:15:003
845037992821,4cyclictest0-21swapper/323:15:003
845034992820,4cyclictest607-21lldpd00:30:232
845029992821,4cyclictest0-21swapper/122:25:251
845029992815,10cyclictest231ktimers/123:45:111
845025992822,3cyclictest882701-21timerandwakeup20:55:250
845025992821,5cyclictest864130-21kworker/u8:0+events_unbound20:15:580
845025992818,6cyclictest0-21swapper/022:35:010
845025992815,9cyclictest903455-21sshd21:56:170
845037992721,4cyclictest950150-21kworker/u8:1+events_unbound00:23:403
845037992720,5cyclictest859067-21kworker/u8:2+events_unbound20:15:193
845037992720,3cyclictest0-21swapper/300:35:263
845037992719,5cyclictest391ktimers/320:45:133
845037992719,5cyclictest391ktimers/320:45:133
845037992719,4cyclictest0-21swapper/319:15:023
845034992720,5cyclictest927851-21kworker/u8:2+events_unbound23:31:352
845034992720,4cyclictest0-21swapper/223:20:262
845034992720,3cyclictest0-21swapper/223:50:262
845034992718,5cyclictest0-21swapper/222:20:242
845034992715,8cyclictest204-21dbus-daemon22:26:222
845029992719,4cyclictest0-21swapper/120:30:011
845029992717,7cyclictest895691-21fschecks_time21:35:181
845029992714,7cyclictest0-21swapper/120:53:381
845025992720,5cyclictest944914-21kworker/u8:0+events_unbound00:08:340
845025992720,5cyclictest881335-21kworker/u8:0+events_unbound21:00:560
845025992720,5cyclictest13550irq/42-30be0000.ethernet20:40:000
845025992719,5cyclictest0-21swapper/021:50:270
845025992717,7cyclictest931307-21basename23:20:000
845025992716,6cyclictest0-21swapper/021:20:260
845025992715,7cyclictest889691-21grep21:15:260
845037992621,3cyclictest930956-21kworker/u8:0+events_unbound23:16:323
845037992618,4cyclictest0-21swapper/319:35:273
84503799261,13cyclictest0-21swapper/300:30:133
845034992620,3cyclictest951983-21sendmail00:20:012
845034992619,5cyclictest896823-21kworker/u8:2+events_unbound21:46:192
845034992618,4cyclictest0-21swapper/220:25:162
845034992616,6cyclictest0-21swapper/219:15:442
845034992613,9cyclictest939401-21grep23:40:252
84502999269,5cyclictest131rcu_preempt23:03:211
84502999267,5cyclictest0-21swapper/119:30:271
845029992619,5cyclictest231ktimers/121:09:151
845029992618,4cyclictest0-21swapper/122:50:011
845029992618,4cyclictest0-21swapper/119:25:151
845029992616,7cyclictest897405-21tune2fs21:40:171
845029992612,6cyclictest131rcu_preempt20:12:221
845025992622,2cyclictest13550irq/42-30be0000.ethernet23:30:190
845025992620,3cyclictest0-21swapper/023:10:210
845025992620,3cyclictest0-21swapper/023:10:210
845025992618,6cyclictest862383-21kworker/u8:3+events_unbound19:57:430
84502599261,6cyclictest940623-21ntp_states23:45:200
845025992616,7cyclictest121ktimers/000:20:130
84502599261,21cyclictest870702-21grep20:20:260
84502599261,12cyclictest0-21swapper/023:07:000
84502599261,12cyclictest0-21swapper/023:07:000
845037992519,4cyclictest881335-21kworker/u8:0+events_unbound20:56:063
845037992519,4cyclictest859067-21kworker/u8:2+events_unbound20:00:553
845037992518,4cyclictest0-21swapper/322:40:153
845037992518,3cyclictest0-21swapper/322:55:143
845037992514,7cyclictest204-21dbus-daemon19:30:473
845034992519,3cyclictest0-21swapper/221:20:202
845034992518,4cyclictest0-21swapper/220:40:252
845034992516,6cyclictest876047-21grep20:35:262
845034992515,6cyclictest0-21swapper/220:20:262
84502999254,4cyclictest24-21ksoftirqd/123:05:391
84502999254,4cyclictest24-21ksoftirqd/123:05:391
845029992517,5cyclictest231ktimers/119:45:011
845029992515,7cyclictest931832-21cat23:20:171
845029992514,4cyclictest131rcu_preempt00:20:121
845029992512,4cyclictest131rcu_preempt21:29:501
845029992510,8cyclictest131rcu_preempt20:01:451
845025992521,2cyclictest13550irq/42-30be0000.ethernet20:00:120
84502599251,4cyclictest876954-21perl20:40:160
84502599251,4cyclictest131rcu_preempt19:25:120
845025992513,10cyclictest13550irq/42-30be0000.ethernet00:00:160
845025992513,10cyclictest13550irq/42-30be0000.ethernet00:00:160
84502599251,12cyclictest0-21swapper/022:09:000
84503799246,3cyclictest131rcu_preempt21:05:153
845037992419,3cyclictest845019-21cyclictest22:35:123
845037992418,4cyclictest907127-21kworker/u8:2+events_unbound22:10:163
845037992418,4cyclictest907127-21kworker/u8:2+events_unbound22:10:163
845037992418,3cyclictest0-21swapper/320:50:273
845037992417,4cyclictest910835-21kworker/u8:1+events_unbound22:20:123
845037992416,4cyclictest0-21swapper/320:20:163
845037992414,6cyclictest0-21swapper/323:00:233
84503499243,16cyclictest852384-21sh19:30:012
845034992418,3cyclictest0-21swapper/220:05:262
845034992418,3cyclictest0-21swapper/220:00:162
845034992417,3cyclictest0-21swapper/220:15:162
845034992416,6cyclictest0-21swapper/222:55:012
845034992416,4cyclictest849374-21fschecks_count19:20:162
845034992413,8cyclictest901173-21ntp_states21:50:232
845034992413,8cyclictest862649-21basename20:00:012
84502999245,13cyclictest24-21ksoftirqd/123:35:211
845029992418,3cyclictest0-21swapper/121:10:271
845029992413,7cyclictest0-21swapper/100:35:261
845029992410,4cyclictest131rcu_preempt20:55:011
845025992418,4cyclictest879584-21kworker/u8:1+events_unbound20:47:170
845025992418,4cyclictest879584-21kworker/u8:1+events_unbound20:47:170
845025992418,3cyclictest13850irq/36-mmc120:35:010
845025992417,3cyclictest0-21swapper/023:56:570
84502599241,3cyclictest852731-21df_inode19:30:140
84503799231,3cyclictest131rcu_preempt21:00:243
845037992313,8cyclictest856185-21cut19:40:153
845037992313,7cyclictest943001-21grep23:50:263
845034992317,3cyclictest0-21swapper/221:10:142
845034992317,3cyclictest0-21swapper/221:05:212
845034992316,4cyclictest0-21swapper/220:30:152
845034992316,4cyclictest0-21swapper/219:35:162
845034992316,3cyclictest0-21swapper/223:50:002
845034992316,3cyclictest0-21swapper/221:40:242
845034992315,5cyclictest0-21swapper/223:05:262
845034992315,5cyclictest0-21swapper/223:05:262
84502999238,8cyclictest131rcu_preempt20:41:331
84502999236,4cyclictest0-21swapper/121:30:251
845029992314,5cyclictest878604-21grep20:45:171
845029992314,5cyclictest878604-21grep20:45:171
845029992313,7cyclictest0-21swapper/119:20:201
84502599232,16cyclictest0-21swapper/020:05:260
845025992316,5cyclictest121ktimers/021:10:130
845025992316,3cyclictest0-21swapper/023:44:210
845025992316,3cyclictest0-21swapper/019:38:030
845025992314,7cyclictest916994-21sed22:35:250
84502599231,19cyclictest0-21swapper/019:53:050
84502599231,18cyclictest0-21swapper/022:47:240
84502599231,18cyclictest0-21swapper/022:43:160
84502599231,18cyclictest0-21swapper/020:26:410
845025992311,10cyclictest151rcuc/022:10:010
845025992311,10cyclictest151rcuc/022:10:010
84503799222,10cyclictest0-21swapper/300:18:023
845037992216,3cyclictest0-21swapper/323:05:153
845037992216,3cyclictest0-21swapper/323:05:153
845037992216,3cyclictest0-21swapper/321:20:013
845037992216,3cyclictest0-21swapper/319:50:013
845037992215,5cyclictest920820-21kworker/u8:2+events_unbound22:48:093
845037992215,5cyclictest391ktimers/323:40:133
845037992215,3cyclictest0-21swapper/321:50:203
84503799221,4cyclictest905071-21grep22:00:273
845034992216,3cyclictest0-21swapper/223:55:232
845034992214,5cyclictest311ktimers/219:30:182
845034992211,8cyclictest915272-21unixbench_singl22:30:252
84502999229,6cyclictest131rcu_preempt22:40:421
845025992215,5cyclictest151rcuc/020:10:160
84503799215,3cyclictest0-21swapper/300:10:133
845037992112,7cyclictest906626-21expr22:05:243
845037992111,7cyclictest938215-21cut23:40:013
845034992114,4cyclictest311ktimers/220:45:232
845034992114,4cyclictest311ktimers/220:45:232
845034992111,7cyclictest892082-21seq21:25:122
845034992014,3cyclictest0-21swapper/219:45:172
845034992010,7cyclictest909058-21cut22:15:012
845034992010,7cyclictest909058-21cut22:15:012
845034992010,7cyclictest0-21swapper/222:20:002
845034992010,7cyclictest0-21swapper/222:20:002
845037991913,3cyclictest0-21swapper/320:05:143
84503499191,4cyclictest0-21swapper/223:12:272
84503499191,4cyclictest0-21swapper/223:12:272
84503499191,13cyclictest934694-21cron23:30:012
845034991910,6cyclictest894385-21/usr/sbin/munin21:30:232
845034991812,4cyclictest856344-21if_eth119:40:152
845034991711,4cyclictest311ktimers/223:15:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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