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2026-04-23 - 22:55

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 highest latencies:
System rackbslot5s.osadl.org (updated Thu Apr 23, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
724224996947,6cyclictest733710-21kworker/u8:4+events_unbound07:35:192
724229995340,8cyclictest760737-21grep08:50:243
724220995240,8cyclictest813421-21apt-key11:25:011
724220995041,5cyclictest751419-21fschecks_time08:25:161
724215995022,25cyclictest749261-21munin-run08:20:000
72421599501,3cyclictest775074-21apt-get09:35:110
724220994734,9cyclictest804468-21idleruntime-cro11:00:001
724224994640,4cyclictest486446-21kworker/u8:2+events_unbound07:15:152
724224994640,4cyclictest486446-21kworker/u8:2+events_unbound07:15:152
724224994632,10cyclictest311ktimers/212:15:142
724215994622,20cyclictest0-21swapper/007:50:150
724215994619,23cyclictest0-21swapper/009:00:010
724215994516,25cyclictest811493-21auditctl11:20:000
72421599451,5cyclictest780531-21irqstats09:50:180
72421599451,4cyclictest820688-21apt-get11:45:120
724224994436,4cyclictest790411-21sendmail10:19:592
72421599441,7cyclictest839397-21date12:40:000
72421599441,5cyclictest764844-21apt-get09:05:130
72421599441,5cyclictest745838-21latency_hist08:10:010
724229994335,5cyclictest813222-21munin-plugin-st11:25:003
72421599431,10cyclictest773373-21/usr/sbin/munin09:30:110
724229994232,7cyclictest792123-21munin-plugin-st10:25:003
724220994230,8cyclictest0-21swapper/112:20:001
72421599422,32cyclictest726127-21grep07:15:010
724215994223,16cyclictest13550irq/42-30be0000.ethernet09:20:140
72421599421,8cyclictest835020-21/usr/sbin/munin12:25:240
72421599421,6cyclictest760063-21irqstats08:50:170
72421599421,4cyclictest757403-21users08:40:260
72421599421,3cyclictest0-21swapper/011:40:110
72421599421,38cyclictest728894-21/usr/sbin/munin07:20:190
72421599421,37cyclictest805743-21head11:00:250
72421599421,2cyclictest0-21swapper/012:20:000
72421599413,3cyclictest776795-21apt-get09:40:130
72421599412,36cyclictest833402-21/usr/sbin/munin12:20:220
72421599411,9cyclictest813653-21apt-get11:25:120
724215994117,21cyclictest804466-21sendmail11:00:000
724215994116,23cyclictest0-21swapper/007:25:250
72421599411,5cyclictest742449-21latency_hist08:00:010
72421599411,3cyclictest0-21swapper/010:30:210
72421599411,3cyclictest0-21swapper/009:25:180
72421599411,3cyclictest0-21swapper/009:25:180
724215994113,25cyclictest0-21swapper/010:25:000
72421599411,11cyclictest785649-21/usr/sbin/munin10:05:160
72421599411,10cyclictest732047-21sshd07:30:180
724229994033,5cyclictest776388-21kworker/u8:2+events_unbound10:16:013
724229994032,4cyclictest0-21swapper/307:20:153
724220994029,7cyclictest827671-21fschecks_count12:05:141
724220994029,7cyclictest827671-21fschecks_count12:05:141
724220994027,9cyclictest231ktimers/109:30:141
72421599403,5cyclictest783189-21cron09:58:010
72421599402,34cyclictest769715-21cron09:20:000
72421599401,9cyclictest825961-21tune2fs12:00:150
72421599401,9cyclictest778494-21/usr/sbin/munin09:45:120
72421599401,7cyclictest828071-21ntp_states12:05:210
72421599401,7cyclictest828071-21ntp_states12:05:200
72421599401,3cyclictest736928-21basename07:45:010
72421599401,3cyclictest0-21swapper/008:30:130
72421599400,11cyclictest808109-21apt-get11:10:110
724229993931,4cyclictest733289-21munin-plugin-st07:35:013
724229993921,10cyclictest131rcu_preempt07:10:253
724224993930,6cyclictest818335-21unixbench_singl11:35:252
724220993930,5cyclictest728151-21cron07:20:011
724220993930,5cyclictest728151-21cron07:20:001
72421599392,31cyclictest824113-21cpu11:55:130
72421599391,3cyclictest0-21swapper/011:35:110
72421599391,3cyclictest0-21swapper/010:45:010
72421599391,3cyclictest0-21swapper/008:10:120
72421599391,3cyclictest0-21swapper/007:45:090
72421599391,33cyclictest783914-21cat10:00:160
72421599391,12cyclictest742472-21apt-get08:00:120
72421599391,10cyclictest728170-21tr07:20:010
72421599391,10cyclictest728170-21tr07:20:000
72421599390,3cyclictest0-21swapper/009:10:090
724224993831,4cyclictest816836-21munin-plugin-st11:35:002
724220993831,4cyclictest762912-21idleruntime-cro09:00:011
72421599383,3cyclictest836354-21/usr/sbin/munin12:30:170
72421599383,31cyclictest830225-21grep12:10:230
72421599381,9cyclictest756067-21cron08:40:010
72421599381,7cyclictest751836-21processes08:25:220
72421599381,6cyclictest750672-21sshd08:21:240
72421599381,4cyclictest801849-21ntp_states10:50:200
72421599381,4cyclictest801849-21ntp_states10:50:190
72421599381,4cyclictest800153-21ntp_states10:45:230
72421599381,4cyclictest800153-21ntp_states10:45:230
72421599381,3cyclictest812504-21/usr/sbin/munin11:20:230
72421599381,34cyclictest815690-21irqstats11:30:170
72421599381,32cyclictest788008-21grep10:10:240
72421599381,11cyclictest822725-21irqstats11:50:160
72421599381,10cyclictest789255-21/usr/sbin/munin10:15:180
72421599381,10cyclictest763149-21/usr/sbin/munin09:00:130
72421599381,10cyclictest758631-21/usr/sbin/munin08:45:220
724224993729,4cyclictest828568-21unixbench_singl12:05:252
724224993729,4cyclictest828568-21unixbench_singl12:05:252
724220993730,4cyclictest766317-21sh09:10:001
724220993729,4cyclictest0-21swapper/108:15:001
724220993728,6cyclictest790387-21cron10:20:001
72421599371,4cyclictest806465-21/usr/sbin/munin11:05:140
72421599371,4cyclictest792556-21apt-get10:25:120
72421599371,3cyclictest733836-21df_inode07:35:150
724229993627,4cyclictest0-21swapper/311:54:593
724229993626,6cyclictest827268-21cron12:05:003
724224993628,4cyclictest0-21swapper/211:20:012
724220993628,4cyclictest0-21swapper/111:05:151
72421599362,7cyclictest796550-21awk10:35:210
724224993528,4cyclictest788489-21munin-plugin-st10:15:002
724224993527,5cyclictest800735-21kworker/u8:0+events_unbound11:11:112
724220993528,4cyclictest825567-21run-parts12:00:001
724220993528,4cyclictest779977-21idleruntime-cro09:50:011
724220993527,4cyclictest0-21swapper/109:35:161
724229993425,4cyclictest0-21swapper/307:50:293
724229993423,7cyclictest811511-21sendmail11:20:013
724224993428,4cyclictest823583-21kworker/u8:2+events_unbound12:01:242
724224993422,8cyclictest756093-21sendmail08:40:002
724220993424,6cyclictest0-21swapper/109:55:241
724220993424,6cyclictest0-21swapper/109:25:001
724220993423,7cyclictest0-21swapper/107:55:261
724220993413,6cyclictest24-21ksoftirqd/107:35:551
724229993325,4cyclictest0-21swapper/311:30:233
724229993323,6cyclictest0-21swapper/309:10:513
724224993326,5cyclictest790017-21kworker/u8:0+events_unbound10:20:222
72422499331,10cyclictest725408-21grep07:10:242
724220993325,4cyclictest769724-21kthreadd09:20:011
724220993314,13cyclictest724206-21cyclictest09:00:211
724229993223,5cyclictest743521-21unixbench_singl08:00:273
724229993223,4cyclictest0-21swapper/311:45:163
724229993221,6cyclictest0-21swapper/308:45:263
724224993224,5cyclictest0-21swapper/209:40:002
724224993224,4cyclictest0-21swapper/209:50:002
724220993222,6cyclictest748779-21grep08:15:271
724220993219,7cyclictest0-21swapper/108:00:271
724229993124,3cyclictest0-21swapper/308:40:213
724229993123,4cyclictest0-21swapper/311:35:253
724229993123,4cyclictest0-21swapper/309:50:553
724229993118,9cyclictest741845-21sshd07:55:333
724224993124,4cyclictest0-21swapper/210:00:252
724224993123,4cyclictest0-21swapper/211:45:262
724220993124,4cyclictest724206-21cyclictest10:45:271
724220993124,4cyclictest724206-21cyclictest10:45:261
724220993123,4cyclictest0-21swapper/112:05:001
724220993123,4cyclictest0-21swapper/107:10:131
724220993117,7cyclictest0-21swapper/108:40:241
724220993112,4cyclictest131rcu_preempt10:40:141
724229993025,2cyclictest486446-21kworker/u8:2+events_unbound07:45:283
724229993022,5cyclictest804468-21idleruntime-cro10:59:593
724229993021,6cyclictest769716-21cron09:20:003
724229993018,7cyclictest0-21swapper/309:10:013
724224993024,3cyclictest813470-21latency_hist11:25:012
724224993022,6cyclictest828714-21kworker/u8:0+events_unbound12:12:412
724224993022,4cyclictest0-21swapper/210:30:242
724224993022,4cyclictest0-21swapper/208:45:262
724220993015,3cyclictest131rcu_preempt11:45:181
724220993014,4cyclictest131rcu_preempt08:45:211
724229992922,5cyclictest704017-21kworker/u8:1+events_unbound07:40:233
724229992921,5cyclictest756082-21grep08:40:013
724229992921,4cyclictest749279-21idleruntime-cro08:20:013
724229992921,4cyclictest0-21swapper/310:45:003
724229992921,4cyclictest0-21swapper/308:10:163
724229992920,6cyclictest786318-21unixbench_multi10:05:243
724229992917,7cyclictest0-21swapper/309:55:253
724224992921,4cyclictest0-21swapper/210:26:032
724224992920,6cyclictest785447-21fschecks_count10:05:152
724224992920,6cyclictest0-21swapper/211:55:242
724224992920,4cyclictest0-21swapper/207:45:142
724224992918,7cyclictest748784-21grep08:15:272
724220992922,4cyclictest231ktimers/107:25:121
724220992920,5cyclictest0-21swapper/111:55:001
724220992918,6cyclictest131rcu_preempt10:23:371
724229992820,4cyclictest828568-21unixbench_singl12:05:253
724229992820,4cyclictest828568-21unixbench_singl12:05:253
724229992817,5cyclictest769630-21kworker/u8:0+events_unbound09:25:533
724229992817,5cyclictest769630-21kworker/u8:0+events_unbound09:25:533
724229992817,5cyclictest0-21swapper/310:50:003
724229992817,5cyclictest0-21swapper/310:50:003
724224992822,4cyclictest813200-21kworker/u8:3+events_unbound11:40:182
724224992820,4cyclictest806550-21fschecks_count11:05:152
724224992819,6cyclictest813789-21fschecks_count11:25:152
724224992819,6cyclictest769302-21grep09:15:262
724224992819,6cyclictest731928-21/usr/sbin/munin07:30:152
72422499281,5cyclictest131rcu_preempt09:05:132
72422099287,5cyclictest24-21ksoftirqd/107:20:171
72422099287,5cyclictest221rcuc/107:35:021
72422099285,7cyclictest24-21ksoftirqd/111:15:251
72422099284,7cyclictest24-21ksoftirqd/111:35:231
724220992821,4cyclictest0-21swapper/112:10:241
724220992819,6cyclictest767540-21unixbench_multi09:10:231
724220992819,6cyclictest0-21swapper/110:05:121
724220992818,5cyclictest0-21swapper/108:35:011
724220992817,8cyclictest0-21swapper/108:20:141
724220992817,7cyclictest0-21swapper/111:00:251
724220992813,4cyclictest131rcu_preempt11:10:131
724220992812,4cyclictest0-21swapper/110:05:011
72422099281,23cyclictest204-21dbus-daemon07:45:261
724220992810,4cyclictest131rcu_preempt09:50:241
724220992810,4cyclictest0-21swapper/112:35:211
724220992810,11cyclictest131rcu_preempt10:30:211
724229992718,6cyclictest808070-21latency_hist11:10:023
724229992718,6cyclictest750509-21unixbench_multi08:20:253
724229992717,6cyclictest0-21swapper/307:35:163
724229992716,6cyclictest0-21swapper/308:30:253
724224992720,4cyclictest744167-21kworker/u8:2+events_unbound08:15:022
724224992719,5cyclictest761132-21kworker/u8:3+events_unbound09:14:202
72422099275,8cyclictest24-21ksoftirqd/109:45:001
724220992716,8cyclictest745885-21latency_hist08:10:001
724220992715,9cyclictest204-21dbus-daemon07:50:301
724229992619,4cyclictest0-21swapper/310:50:173
724229992619,4cyclictest0-21swapper/310:50:163
724229992617,6cyclictest0-21swapper/312:19:593
724229992616,7cyclictest391ktimers/310:00:133
724229992616,6cyclictest0-21swapper/307:20:013
724229992616,6cyclictest0-21swapper/307:20:013
724229992615,7cyclictest763058-21seq09:00:013
724229992615,7cyclictest0-21swapper/309:00:253
724229992614,7cyclictest0-21swapper/307:25:243
724224992620,4cyclictest767636-21kworker/u8:1+events_unbound09:22:412
724224992620,4cyclictest756191-21kworker/u8:1+events_unbound08:50:502
724224992620,3cyclictest0-21swapper/210:40:012
724224992619,4cyclictest0-21swapper/211:00:242
724224992619,3cyclictest0-21swapper/207:55:022
724224992618,5cyclictest729587-21kworker/u8:3+events_unbound07:26:342
724224992618,4cyclictest0-21swapper/208:40:252
72422499261,5cyclictest131rcu_preempt10:45:132
72422499261,5cyclictest131rcu_preempt10:45:122
724224992615,7cyclictest837064-21grep12:30:252
72422099269,10cyclictest131rcu_preempt12:34:081
72422099269,10cyclictest131rcu_preempt09:25:541
72422099269,10cyclictest131rcu_preempt09:25:531
72422099266,8cyclictest131rcu_preempt10:14:081
72422099263,6cyclictest24-21ksoftirqd/111:25:201
724220992620,4cyclictest645-21runrttasks08:35:161
72422099261,8cyclictest24-21ksoftirqd/107:40:161
724220992616,6cyclictest0-21swapper/111:30:111
724229992521,2cyclictest0-21swapper/311:25:103
724229992518,3cyclictest0-21swapper/312:40:013
724229992518,3cyclictest0-21swapper/309:45:273
724229992517,4cyclictest0-21swapper/311:10:253
724229992515,6cyclictest0-21swapper/312:14:593
724224992519,3cyclictest0-21swapper/207:20:232
724224992518,5cyclictest704017-21kworker/u8:1+events_unbound07:42:092
724224992518,3cyclictest0-21swapper/209:00:502
724224992517,5cyclictest0-21swapper/209:30:262
72422099259,4cyclictest131rcu_preempt10:53:281
72422099259,4cyclictest131rcu_preempt10:53:271
724220992519,4cyclictest231ktimers/110:29:401
724220992514,4cyclictest131rcu_preempt08:52:571
724229992418,4cyclictest816489-21kworker/u8:1+events_unbound11:56:263
724229992417,3cyclictest0-21swapper/312:25:003
724229992413,6cyclictest0-21swapper/309:40:243
724229992412,7cyclictest0-21swapper/308:10:013
724224992418,4cyclictest802625-21kworker/u8:3+events_unbound10:56:102
724224992418,3cyclictest0-21swapper/212:20:212
724224992417,3cyclictest0-21swapper/212:35:202
724224992417,3cyclictest0-21swapper/208:00:152
72422499240,12cyclictest0-21swapper/208:28:272
724220992413,4cyclictest131rcu_preempt12:26:251
724220992410,4cyclictest131rcu_preempt11:40:101
724229992317,4cyclictest776388-21kworker/u8:2+events_unbound10:36:063
724229992316,5cyclictest785038-21kworker/u8:1+events_unbound10:11:123
724229992315,4cyclictest0-21swapper/309:30:163
72422499237,5cyclictest131rcu_preempt08:20:162
72422499236,4cyclictest131rcu_preempt09:40:252
724224992317,4cyclictest145-21jbd2/mmcblk1p2-811:53:062
724224992317,3cyclictest0-21swapper/208:05:102
724224992315,4cyclictest438-21cron09:00:002
724224992313,6cyclictest798663-21grep10:40:242
724229992215,4cyclictest775232-21fschecks_count09:35:153
724229992214,4cyclictest0-21swapper/312:30:163
724229992213,6cyclictest751778-21ntpq08:25:213
724229992213,5cyclictest800735-21kworker/u8:0+events_unbound11:05:003
724224992215,4cyclictest754557-21latency_hist08:35:012
724224992215,4cyclictest311ktimers/209:59:052
724229992116,3cyclictest785038-21kworker/u8:1+events_unbound10:26:043
724229992115,3cyclictest0-21swapper/311:40:223
724229992115,3cyclictest0-21swapper/309:20:193
724224992114,5cyclictest733710-21kworker/u8:4+events_unbound07:55:072
72422999206,9cyclictest794394-21fschecks_count10:30:143
724229992013,3cyclictest0-21swapper/312:30:013
72422499207,4cyclictest131rcu_preempt09:25:182
72422499207,4cyclictest131rcu_preempt09:25:172
72422499201,5cyclictest0-21swapper/209:50:132
724224992013,3cyclictest0-21swapper/212:25:252
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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