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2026-04-25 - 13:37

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 Sat Apr 25, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
531625994938,7cyclictest631626-21grep23:55:261
531630994716,7cyclictest131rcu_preempt23:20:132
531622994737,6cyclictest572852-21grep21:05:240
531630994437,5cyclictest590329-21kworker/u8:2+events_unbound23:32:152
531636994232,6cyclictest587142-21ls21:50:003
531630994235,4cyclictest618241-21apt23:20:012
531630994233,5cyclictest547856-21runrttasks19:55:002
531630994027,9cyclictest595178-21grep22:10:242
531622994031,4cyclictest0-21swapper/019:56:480
531622994031,4cyclictest0-21swapper/019:56:480
531630993929,6cyclictest579843-21grep21:25:252
531630993831,5cyclictest599639-21kworker/u8:3+events_unbound22:27:072
531630993831,5cyclictest533068-21kworker/u8:2+events_unbound19:11:412
531630993831,3cyclictest0-21swapper/222:20:002
531630993830,5cyclictest611225-21sendmail23:00:002
531630993830,5cyclictest611225-21sendmail23:00:002
531630993828,7cyclictest311ktimers/220:55:122
531630993827,9cyclictest311ktimers/221:10:122
531622993828,6cyclictest0-21swapper/020:30:160
531622993827,7cyclictest619552-21grep23:20:260
531636993729,4cyclictest0-21swapper/300:35:233
531636993729,4cyclictest0-21swapper/300:35:223
531625993729,4cyclictest0-21swapper/121:25:161
531636993627,6cyclictest0-21swapper/323:34:593
531636993627,5cyclictest0-21swapper/323:35:253
531630993628,4cyclictest0-21swapper/200:35:162
531630993628,4cyclictest0-21swapper/200:35:162
531630993625,7cyclictest554653-21latency_hist20:15:002
531625993628,4cyclictest0-21swapper/121:10:241
531625993624,9cyclictest549409-21idleruntime-cro20:00:011
531625993624,9cyclictest549409-21idleruntime-cro20:00:001
531622993629,4cyclictest556217-21cron20:20:010
531636993525,6cyclictest0-21swapper/323:00:003
531636993525,6cyclictest0-21swapper/323:00:003
531630993527,4cyclictest0-21swapper/222:00:162
531630993527,4cyclictest0-21swapper/221:50:262
531630993523,9cyclictest585436-21auditctl21:45:012
531625993527,4cyclictest0-21swapper/120:05:161
531625993526,4cyclictest0-21swapper/121:36:581
531625993523,8cyclictest573281-21cron21:10:001
531622993528,4cyclictest611211-21cut23:00:000
531622993528,4cyclictest611211-21cut22:59:590
531622993527,5cyclictest599085-21munin-plugin-st22:25:000
531636993427,5cyclictest637255-21kworker/u8:2+events_unbound00:28:443
531636993427,4cyclictest0-21swapper/321:10:013
531636993424,5cyclictest0-21swapper/321:19:593
531630993426,5cyclictest637427-21debian-sa100:15:002
531630993426,3cyclictest0-21swapper/223:35:152
531630993425,6cyclictest599332-21grep22:25:002
531625993426,4cyclictest0-21swapper/122:00:011
531625993426,4cyclictest0-21swapper/121:20:001
531622993426,4cyclictest580323-21ls21:30:010
531622993422,9cyclictest597363-21sendmail22:19:590
531622993421,8cyclictest616533-21sh23:15:010
531636993325,6cyclictest3625796-21kworker/u8:1+events_unbound19:40:243
531630993327,4cyclictest550757-21kworker/u8:3+events_unbound20:26:542
531630993325,4cyclictest0-21swapper/223:25:162
531630993324,6cyclictest566008-21grep20:45:272
531630993322,7cyclictest0-21swapper/219:40:262
53162299334,4cyclictest6048472cut22:40:150
531636993226,4cyclictest616245-21kworker/u8:1+events_unbound23:12:123
531636993224,4cyclictest0-21swapper/322:40:153
531636993224,4cyclictest0-21swapper/320:05:263
531636993224,4cyclictest0-21swapper/319:25:163
531636993223,6cyclictest0-21swapper/300:05:013
531636993220,8cyclictest542143-21grep19:35:253
53163099325,8cyclictest32-21ksoftirqd/220:00:122
53163099325,8cyclictest32-21ksoftirqd/220:00:122
531630993225,4cyclictest0-21swapper/220:35:252
531630993220,8cyclictest573276-21auditctl21:10:012
531630993215,5cyclictest633980-21kworker/u8:0+events_unbound00:07:492
531625993224,4cyclictest0-21swapper/123:25:251
531625993222,6cyclictest0-21swapper/123:05:251
531622993225,3cyclictest0-21swapper/019:45:000
531622993221,7cyclictest0-21swapper/019:10:250
531636993123,4cyclictest0-21swapper/319:10:253
531636993123,4cyclictest0-21swapper/300:30:263
531636993123,4cyclictest0-21swapper/300:30:263
531636993121,7cyclictest0-21swapper/300:00:003
531636993116,11cyclictest391ktimers/321:50:123
531630993123,4cyclictest0-21swapper/223:10:222
531630993122,6cyclictest0-21swapper/221:00:242
531625993120,8cyclictest606113-21grep22:45:011
531622993124,4cyclictest0-21swapper/023:30:100
531636993022,5cyclictest0-21swapper/323:20:013
531636993022,4cyclictest0-21swapper/319:20:163
53163099302,4cyclictest131rcu_preempt00:25:132
531630993020,6cyclictest0-21swapper/220:40:252
531625993022,4cyclictest0-21swapper/123:35:001
531625993021,5cyclictest607408-21unixbench_singl22:45:281
531625993021,5cyclictest0-21swapper/123:20:151
531625993018,9cyclictest231ktimers/119:35:111
53162299309,3cyclictest577215-21cat21:20:110
531622993023,3cyclictest0-21swapper/023:50:240
531622993022,4cyclictest0-21swapper/019:30:250
531636992922,3cyclictest0-21swapper/300:10:163
531636992921,4cyclictest0-21swapper/320:30:163
531636992921,4cyclictest0-21swapper/320:10:263
531636992918,8cyclictest635725-21sh00:10:003
531630992923,3cyclictest0-21swapper/219:30:152
531630992915,10cyclictest311ktimers/221:15:122
531625992921,4cyclictest0-21swapper/121:50:011
531622992922,3cyclictest0-21swapper/022:30:260
531636992821,5cyclictest524313-21kworker/u8:0+events_unbound19:31:443
531636992820,5cyclictest0-21swapper/322:40:013
531636992818,5cyclictest0-21swapper/320:15:183
531636992813,9cyclictest0-21swapper/320:45:173
531630992820,4cyclictest0-21swapper/223:10:012
531630992820,4cyclictest0-21swapper/221:35:002
53163099281,4cyclictest131rcu_preempt19:25:122
531625992817,7cyclictest0-21swapper/120:10:261
531622992821,4cyclictest0-21swapper/023:35:120
531622992821,3cyclictest0-21swapper/019:25:160
531622992818,6cyclictest545524-21grep19:45:250
531636992721,3cyclictest0-21swapper/321:00:013
531636992720,4cyclictest0-21swapper/322:30:263
531636992719,5cyclictest0-21swapper/321:40:263
531636992719,4cyclictest0-21swapper/323:40:263
531636992719,4cyclictest0-21swapper/319:15:153
531636992718,6cyclictest0-21swapper/322:45:283
531636992716,7cyclictest599104-21grep22:25:013
531630992720,5cyclictest626672-21kworker/u8:1+events_unbound23:54:242
531630992717,7cyclictest560870-21grep20:30:252
53163099271,6cyclictest0-21swapper/222:30:122
531625992721,3cyclictest0-21swapper/121:35:011
531625992720,5cyclictest3625796-21kworker/u8:1+events_unbound20:30:251
531625992720,4cyclictest0-21swapper/122:15:261
531625992719,5cyclictest625068-21munin-plugin-st23:40:001
531625992719,5cyclictest0-21swapper/122:25:001
531625992719,5cyclictest0-21swapper/122:05:241
531625992719,4cyclictest0-21swapper/122:35:251
531622992722,3cyclictest537479-21munin-plugin-st19:25:000
531622992720,4cyclictest621665-21latency_hist23:30:000
531622992720,4cyclictest588847-21munin-plugin-st21:55:010
531622992719,4cyclictest0-21swapper/000:00:150
531622992718,5cyclictest0-21swapper/022:14:590
531622992718,4cyclictest0-21swapper/020:05:260
531622992717,6cyclictest0-21swapper/020:10:250
531636992620,3cyclictest0-21swapper/323:25:233
531636992619,4cyclictest0-21swapper/322:05:253
531636992618,4cyclictest0-21swapper/321:55:263
531636992617,4cyclictest0-21swapper/321:05:013
531636992616,5cyclictest564341-21grep20:40:253
531636992611,9cyclictest131rcu_preempt22:13:323
531630992619,5cyclictest626672-21kworker/u8:1+events_unbound23:45:242
531630992619,5cyclictest0-21swapper/223:40:252
531630992618,6cyclictest550757-21kworker/u8:3+events_unbound20:07:002
531630992618,5cyclictest543568-21kworker/u8:2+events_unbound19:45:172
531630992618,5cyclictest0-21swapper/200:30:262
531630992618,5cyclictest0-21swapper/200:30:252
531630992617,5cyclictest438-21cron00:00:012
531625992619,5cyclictest178-21systemd-udevd20:20:411
531625992618,4cyclictest0-21swapper/122:10:151
531622992619,3cyclictest0-21swapper/000:00:000
531622992618,5cyclictest0-21swapper/000:15:260
531622992615,8cyclictest627016-21date23:45:020
531622992615,6cyclictest0-21swapper/022:40:000
531636992519,4cyclictest616245-21kworker/u8:1+events_unbound23:22:133
531636992519,4cyclictest543568-21kworker/u8:2+events_unbound20:35:243
531636992519,3cyclictest0-21swapper/320:55:003
531636992517,4cyclictest0-21swapper/323:05:243
531636992516,6cyclictest0-21swapper/322:25:163
531636992515,6cyclictest0-21swapper/321:30:263
531636992514,7cyclictest0-21swapper/321:25:263
531630992519,4cyclictest628614-21kworker/u8:3+events_unbound00:18:422
531630992519,4cyclictest590329-21kworker/u8:2+events_unbound22:54:192
531630992519,4cyclictest576822-21kworker/u8:1+events_unbound21:20:432
531630992519,4cyclictest524313-21kworker/u8:0+events_unbound19:21:422
531630992517,6cyclictest568935-21kworker/u8:3+events_unbound21:35:422
531630992516,6cyclictest0-21swapper/223:05:012
531630992516,6cyclictest0-21swapper/200:05:002
531630992514,8cyclictest204-21dbus-daemon22:37:092
531625992518,5cyclictest164-21systemd-journal19:20:411
531625992518,4cyclictest0-21swapper/123:00:161
531625992516,6cyclictest0-21swapper/119:15:001
531625992512,9cyclictest611236-21basename23:00:011
531625992512,9cyclictest611236-21basename23:00:001
531622992518,5cyclictest606344-21kworker/u8:1+events_unbound23:02:110
531622992516,7cyclictest121ktimers/023:45:060
531622992516,4cyclictest0-21swapper/000:05:250
531622992515,6cyclictest0-21swapper/021:00:250
531622992515,6cyclictest0-21swapper/020:40:250
531622992514,7cyclictest590562-21basename22:00:010
53162299251,20cyclictest0-21swapper/022:04:120
531622992511,12cyclictest592259-21latency_hist22:05:010
531636992418,3cyclictest0-21swapper/323:05:003
531636992418,3cyclictest0-21swapper/319:50:243
531636992417,4cyclictest549396-21munin-run20:00:013
531636992417,4cyclictest549396-21munin-run20:00:013
531636992416,5cyclictest621494-21kworker/u8:0+events_unbound23:45:063
531636992415,4cyclictest0-21swapper/322:17:053
531636992414,7cyclictest608949-21wc22:50:253
531630992418,4cyclictest580025-21kworker/u8:0+events_unbound21:57:032
531630992418,4cyclictest5343982sleep219:15:172
531630992416,6cyclictest3625796-21kworker/u8:1+events_unbound20:15:162
531625992418,4cyclictest178-21systemd-udevd21:20:401
531625992417,4cyclictest0-21swapper/123:45:261
531625992416,5cyclictest0-21swapper/120:00:251
531625992416,5cyclictest0-21swapper/120:00:251
531625992416,5cyclictest0-21swapper/100:20:261
531625992414,7cyclictest204-21dbus-daemon00:13:371
531625992414,6cyclictest0-21swapper/123:45:021
531625992412,9cyclictest561791-21cut20:35:151
531625992412,8cyclictest0-21swapper/122:35:001
531622992417,3cyclictest0-21swapper/020:47:450
53162299241,6cyclictest642194-21taskset00:25:490
531622992413,7cyclictest0-21swapper/020:25:000
53162299241,19cyclictest0-21swapper/023:06:180
53162299241,19cyclictest0-21swapper/021:44:470
53162299241,19cyclictest0-21swapper/021:17:560
53162299241,19cyclictest0-21swapper/020:39:270
531636992314,5cyclictest0-21swapper/300:15:173
531636992313,7cyclictest640706-21seq00:23:233
531636992313,7cyclictest590845-21cat22:00:143
531636992313,7cyclictest556548-21ls20:20:133
531636992312,8cyclictest629796-21sed23:50:243
531636992312,8cyclictest545836-21seq19:48:113
531630992315,5cyclictest0-21swapper/220:20:252
531625992316,4cyclictest0-21swapper/119:55:011
531625992316,4cyclictest0-21swapper/100:35:161
531625992316,4cyclictest0-21swapper/100:35:151
531625992316,4cyclictest0-21swapper/100:15:161
531625992316,3cyclictest0-21swapper/119:45:241
531625992315,4cyclictest0-21swapper/119:25:251
531622992317,4cyclictest582771-21ntpq21:35:210
531622992317,2cyclictest0-21swapper/000:10:200
531622992313,6cyclictest559214-21grep20:25:260
53162299231,18cyclictest0-21swapper/023:19:450
53162299231,18cyclictest0-21swapper/022:50:300
53162299231,18cyclictest0-21swapper/021:14:180
53162299231,18cyclictest0-21swapper/020:02:290
53162299231,18cyclictest0-21swapper/020:02:290
53162299231,18cyclictest0-21swapper/000:30:350
53162299231,18cyclictest0-21swapper/000:30:350
531622992311,2cyclictest131rcu_preempt19:15:120
53162299230,19cyclictest0-21swapper/021:30:330
53162299230,19cyclictest0-21swapper/020:56:560
531636992216,3cyclictest0-21swapper/321:10:023
531636992216,3cyclictest0-21swapper/320:25:163
531636992215,3cyclictest0-21swapper/321:35:213
53163699221,3cyclictest131rcu_preempt21:20:223
531630992216,3cyclictest0-21swapper/219:55:242
531630992216,3cyclictest0-21swapper/219:55:232
531630992214,5cyclictest311ktimers/222:05:222
531630992213,6cyclictest0-21swapper/221:45:182
53163099221,11cyclictest645-21runrttasks00:24:342
531625992216,4cyclictest178-21systemd-udevd22:54:401
531625992216,3cyclictest0-21swapper/100:00:241
531625992214,5cyclictest0-21swapper/122:00:251
531625992214,5cyclictest0-21swapper/119:40:171
531625992213,6cyclictest0-21swapper/120:15:211
531622992215,3cyclictest0-21swapper/022:45:400
531622992214,5cyclictest0-21swapper/000:35:250
531622992214,5cyclictest0-21swapper/000:35:240
53162299221,3cyclictest599518-21apt-get22:25:130
531622992213,6cyclictest0-21swapper/019:50:160
53162299220,18cyclictest0-21swapper/021:48:290
53163099212,14cyclictest542576-21cron19:40:012
531630992115,4cyclictest580025-21kworker/u8:0+events_unbound22:48:592
531630992115,3cyclictest0-21swapper/220:50:202
531625992116,3cyclictest0-21swapper/119:15:031
531625992114,4cyclictest0-21swapper/120:45:271
531622992116,3cyclictest0-21swapper/000:23:010
531625992015,3cyclictest0-21swapper/120:28:021
531625992014,3cyclictest0-21swapper/122:25:171
531625992014,3cyclictest0-21swapper/120:40:121
531625992013,4cyclictest231ktimers/123:19:161
53162599201,16cyclictest588366-21grep21:50:251
531625992010,7cyclictest569651-21seq20:57:351
53162599199,7cyclictest635189-21sed00:05:241
531625991913,4cyclictest0-21swapper/120:50:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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