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2026-07-30 - 10:12

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 Jul 30, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
398125995043,5cyclictest429332-21kworker/u8:2+events_unbound20:40:523
398121995025,22cyclictest432977-21sh20:50:022
398121994921,23cyclictest455618-21grep21:55:012
398125994839,6cyclictest391ktimers/323:10:143
398121994614,28cyclictest0-21swapper/221:35:012
398125994536,4cyclictest399842-21kthreadd19:15:023
398116994431,10cyclictest231ktimers/122:50:121
398125994333,8cyclictest391ktimers/320:45:123
398121994314,4cyclictest456010-21fschecks_time21:55:142
398116994334,5cyclictest403766-21cron19:25:011
398116994329,9cyclictest399858-21idleruntime-cro19:15:011
398125994235,5cyclictest198100-21kworker/u8:1+events_unbound19:24:423
398125994231,8cyclictest391ktimers/323:05:133
398125994231,6cyclictest496313-21grep23:50:253
398125994230,9cyclictest391ktimers/322:00:123
398121994215,3cyclictest0-21swapper/223:00:272
398121994211,7cyclictest422753-21tr20:20:002
398112994235,4cyclictest453665-21munin-plugin-st21:50:000
398121994111,3cyclictest498844-21fschecks_count00:00:182
398116994133,4cyclictest458985-21cron22:05:001
398116994130,9cyclictest231ktimers/119:50:141
398112994131,6cyclictest444502-21grep21:20:260
398125994033,4cyclictest457287-21idleruntime-cro22:00:013
398125994029,8cyclictest512333-21sendmail00:40:003
398125994029,8cyclictest460697-21idleruntime-cro22:10:003
398121994019,17cyclictest0-21swapper/222:10:262
398121994019,17cyclictest0-21swapper/222:10:252
398121994015,3cyclictest402045-21cron19:20:002
398121994013,3cyclictest466215-21fschecks_count22:25:162
398121994013,3cyclictest466215-21fschecks_count22:25:152
398116994031,5cyclictest451965-21idleruntime-cro21:45:001
398116994031,5cyclictest434685-21basename20:55:011
398112994030,6cyclictest477478-21grep22:55:280
398112994029,6cyclictest0-21swapper/022:25:010
398121993928,7cyclictest442779-21unixbench_singl21:15:242
398121993915,3cyclictest0-21swapper/200:25:232
398121993913,3cyclictest0-21swapper/223:40:202
398121993912,6cyclictest0-21swapper/221:40:222
39812199391,12cyclictest438091-21cron21:05:002
398116993931,4cyclictest402078-21sendmail19:20:001
398125993826,8cyclictest414213-21kthreadd19:55:003
398121993813,3cyclictest452188-21/usr/sbin/munin21:45:242
398121993813,3cyclictest0-21swapper/220:25:012
398116993830,5cyclictest407185-21munin-plugin-st19:35:021
398116993827,6cyclictest0-21swapper/122:40:001
398112993824,10cyclictest121ktimers/023:55:150
398125993726,8cyclictest508901-21latency_hist00:30:013
398121993730,4cyclictest399990-21ls19:15:012
398116993728,6cyclictest464518-21fschecks_count22:20:161
398116993725,9cyclictest443211-21cron21:20:011
398125993615,8cyclictest131rcu_preempt21:40:133
398121993613,4cyclictest483610-21if_eth023:15:152
398121993612,5cyclictest311ktimers/222:20:002
39812199361,13cyclictest412499-21cron19:50:002
398116993626,6cyclictest0-21swapper/121:00:011
398116993625,8cyclictest488199-21cron23:30:001
398116993625,8cyclictest488199-21cron23:30:001
398121993529,4cyclictest505285-21sendmail00:20:002
398121993527,4cyclictest0-21swapper/220:10:262
398112993525,7cyclictest469235-21cut22:35:000
398112993525,7cyclictest469235-21cut22:35:000
398112993524,8cyclictest406700-21grep19:30:240
398125993426,4cyclictest0-21swapper/323:20:003
398125993425,6cyclictest0-21swapper/321:50:133
398125993423,8cyclictest418882-21grep20:05:263
39812599340,8cyclictest0-21swapper/323:40:083
398121993413,5cyclictest311ktimers/220:05:222
398116993426,4cyclictest0-21swapper/122:45:291
398116993425,5cyclictest0-21swapper/120:15:461
398116993421,10cyclictest438-21cron23:50:011
398125993319,9cyclictest204-21dbus-daemon21:31:003
398125993319,5cyclictest412284-21kworker/u8:1+events_unbound20:04:293
398121993327,4cyclictest498438-21munin-plugin-st00:00:002
398121993325,4cyclictest0-21swapper/223:35:262
398121993324,6cyclictest444455-21grep21:20:262
398121993312,4cyclictest311ktimers/200:20:112
398112993327,3cyclictest0-21swapper/000:05:290
398112993315,15cyclictest11-21ksoftirqd/020:05:130
398125993220,9cyclictest391ktimers/321:45:123
398125993217,6cyclictest438081-21kworker/u8:1+events_unbound21:07:253
39812599321,4cyclictest0-21swapper/321:35:113
39812599321,4cyclictest0-21swapper/320:30:123
398121993222,7cyclictest311ktimers/220:25:122
398121993222,7cyclictest311ktimers/220:25:122
398116993224,4cyclictest0-21swapper/122:25:251
398116993224,4cyclictest0-21swapper/122:25:251
398116993224,4cyclictest0-21swapper/100:20:161
398112993226,3cyclictest13550irq/42-30be0000.ethernet00:05:010
398112993221,9cyclictest11-21ksoftirqd/022:40:140
398112993216,14cyclictest11-21ksoftirqd/019:10:130
398125993125,4cyclictest410515-21kworker/u8:0+events_unbound19:46:413
398125993124,5cyclictest484484-21kworker/u8:3+events_unbound23:35:303
398121993122,5cyclictest410808-21kthreadd19:45:002
398116993123,4cyclictest491602-21cron23:39:591
398116993118,10cyclictest398105-21cyclictest20:45:131
398112993124,4cyclictest505285-21sh00:20:000
398112993124,4cyclictest491602-21cron23:40:000
398112993121,6cyclictest0-21swapper/000:30:270
398112993120,7cyclictest503558-21debian-sa100:15:000
398125993023,5cyclictest484484-21kworker/u8:3+events_unbound23:25:113
398125993023,5cyclictest484484-21kworker/u8:3+events_unbound23:25:113
39812599302,14cyclictest3477161-21kworker/3:0-events22:16:123
398125993014,6cyclictest484484-21kworker/u8:3+events_unbound00:04:453
39812199301,11cyclictest512330-21munin-plugin-st00:40:002
398116993022,5cyclictest0-21swapper/123:00:011
398116993017,9cyclictest231ktimers/100:35:121
398116993016,10cyclictest231ktimers/120:05:131
398112993023,4cyclictest0-21swapper/023:15:010
398112993023,4cyclictest0-21swapper/000:20:260
398125992923,3cyclictest0-21swapper/300:35:003
398125992922,4cyclictest0-21swapper/300:20:153
398125992921,4cyclictest0-21swapper/319:25:153
398125992921,3cyclictest0-21swapper/323:24:593
398125992920,6cyclictest0-21swapper/321:20:003
39812599291,7cyclictest0-21swapper/323:00:133
39812599290,4cyclictest0-21swapper/300:10:123
398121992922,3cyclictest0-21swapper/221:00:002
398121992920,5cyclictest0-21swapper/219:55:432
398116992922,4cyclictest457306-21idleruntime-cro22:00:001
398116992921,4cyclictest0-21swapper/122:30:161
398116992921,4cyclictest0-21swapper/122:30:151
398116992921,4cyclictest0-21swapper/120:00:011
398116992919,6cyclictest0-21swapper/123:34:591
398112992919,6cyclictest450244-21sendmail21:40:000
398125992822,4cyclictest465486-21kworker/u8:0+events_unbound22:33:413
398125992822,4cyclictest465486-21kworker/u8:0+events_unbound22:33:413
398125992822,4cyclictest432607-21kworker/u8:3+events_unbound21:11:373
398125992822,4cyclictest414043-21kworker/u8:0+events_unbound19:55:203
398125992821,4cyclictest0-21swapper/300:15:263
398125992817,8cyclictest402080-21basename19:20:013
398121992821,4cyclictest0-21swapper/221:10:182
398121992819,5cyclictest0-21swapper/222:45:002
398121992819,4cyclictest0-21swapper/223:50:232
398121992815,9cyclictest0-21swapper/223:34:592
398116992819,6cyclictest479783-21latency_hist23:05:011
398116992818,6cyclictest0-21swapper/122:10:251
398116992818,6cyclictest0-21swapper/122:10:241
39811299289,15cyclictest441499-21cron21:15:000
398112992821,5cyclictest489560-21kworker/u8:0+events_unbound23:31:250
398112992821,3cyclictest0-21swapper/000:37:360
398112992820,4cyclictest0-21swapper/023:20:250
398112992820,4cyclictest0-21swapper/019:20:250
398112992818,6cyclictest0-21swapper/022:10:240
398112992818,6cyclictest0-21swapper/022:10:240
398112992818,6cyclictest0-21swapper/020:20:000
39812599275,4cyclictest131rcu_preempt22:45:123
398125992718,6cyclictest0-21swapper/322:45:003
39812599271,15cyclictest0-21swapper/321:23:243
398121992720,4cyclictest0-21swapper/222:00:152
398121992719,4cyclictest0-21swapper/219:30:022
398121992718,6cyclictest464538-21fschecks_time22:20:162
398116992719,4cyclictest0-21swapper/120:30:161
398116992718,5cyclictest481374-21cron23:10:001
398116992715,8cyclictest0-21swapper/100:10:271
398112992718,6cyclictest446624-21auditctl21:30:010
398112992713,12cyclictest0-21swapper/020:15:020
39812599267,11cyclictest40-21ksoftirqd/319:45:013
39812599263,12cyclictest436865-21/usr/sbin/munin21:00:173
39812599263,12cyclictest40-21ksoftirqd/320:12:133
398125992620,4cyclictest452764-21kworker/u8:2+events_unbound22:25:233
398125992620,4cyclictest452764-21kworker/u8:2+events_unbound22:25:223
398125992618,4cyclictest0-21swapper/322:55:283
398121992619,4cyclictest0-21swapper/219:20:262
398121992618,5cyclictest0-21swapper/200:05:302
398116992619,3cyclictest0-21swapper/123:20:001
398116992618,4cyclictest0-21swapper/119:40:251
398116992616,6cyclictest0-21swapper/119:45:141
398116992615,7cyclictest0-21swapper/120:10:261
398112992620,3cyclictest0-21swapper/021:20:000
398112992619,4cyclictest13550irq/42-30be0000.ethernet19:25:240
398112992619,3cyclictest0-21swapper/019:55:160
398125992519,4cyclictest463728-21kworker/u8:1+events_unbound22:20:183
398125992519,4cyclictest420848-21kworker/u8:1+events_unbound20:21:003
39812599251,8cyclictest0-21swapper/320:35:143
398125992518,5cyclictest432607-21kworker/u8:3+events_unbound20:50:143
398125992518,5cyclictest406959-21kworker/u8:0+events_unbound19:34:333
398125992517,5cyclictest0-21swapper/300:00:013
398125992517,4cyclictest0-21swapper/323:45:153
398125992517,4cyclictest0-21swapper/300:05:193
398125992510,9cyclictest131rcu_preempt20:25:253
398125992510,9cyclictest131rcu_preempt20:25:253
398121992518,4cyclictest429559-21kthreadd20:40:002
398121992517,5cyclictest0-21swapper/222:05:142
398116992518,3cyclictest510155-21grep00:30:271
398116992518,3cyclictest0-21swapper/100:05:011
398116992517,4cyclictest0-21swapper/121:35:281
398116992514,7cyclictest0-21swapper/119:40:021
398116992513,9cyclictest508699-21apt-get00:30:001
39811299259,13cyclictest121ktimers/023:45:010
39811299253,20cyclictest0-21swapper/019:40:180
398112992519,3cyclictest424451-21sh20:25:000
398112992519,3cyclictest13850irq/36-mmc123:20:000
398112992518,3cyclictest0-21swapper/021:35:010
398112992517,4cyclictest488216-21munin-plugin-st23:29:590
398112992517,4cyclictest488216-21munin-plugin-st23:29:590
398112992516,6cyclictest0-21swapper/000:30:010
39812599249,3cyclictest131rcu_preempt19:35:263
398125992417,4cyclictest465486-21kworker/u8:0+events_unbound22:38:483
398125992417,4cyclictest440029-21kworker/u8:0+events_unbound21:28:193
398125992416,6cyclictest462006-21kworker/u8:0+events_unbound22:15:003
398125992416,6cyclictest462006-21kworker/u8:0+events_unbound22:15:003
398121992418,4cyclictest0-21swapper/219:35:262
398121992417,4cyclictest406696-21grep19:30:242
398121992417,3cyclictest0-21swapper/221:30:002
398121992414,7cyclictest482163-21ntpq23:10:212
398116992418,3cyclictest0-21swapper/121:20:221
398116992416,4cyclictest0-21swapper/120:00:261
398116992415,6cyclictest0-21swapper/123:50:261
398116992415,5cyclictest0-21swapper/120:40:271
398116992415,4cyclictest0-21swapper/100:20:011
398116992414,7cyclictest0-21swapper/122:05:231
398116992414,6cyclictest0-21swapper/121:00:241
398112992418,3cyclictest0-21swapper/023:45:210
398112992417,4cyclictest475773-21tail22:50:240
398112992417,4cyclictest457279-21munin-plugin-st22:00:010
398112992417,3cyclictest0-21swapper/022:47:450
398112992417,3cyclictest0-21swapper/020:31:180
398112992416,6cyclictest121ktimers/022:15:220
398112992414,6cyclictest0-21swapper/021:40:260
39811299241,19cyclictest0-21swapper/023:09:570
39811299241,19cyclictest0-21swapper/020:54:100
39811299241,19cyclictest0-21swapper/019:36:560
39811299240,20cyclictest0-21swapper/022:05:440
39811299240,20cyclictest0-21swapper/020:57:430
398125992316,4cyclictest0-21swapper/322:50:133
39812199232,5cyclictest509117-21test00:30:022
398121992317,3cyclictest0-21swapper/223:05:162
398121992316,4cyclictest0-21swapper/220:40:282
398116992316,4cyclictest0-21swapper/120:25:261
398116992316,4cyclictest0-21swapper/120:25:261
398116992315,5cyclictest0-21swapper/121:10:231
398116992315,4cyclictest471336-21fschecks_count22:40:161
398116992311,9cyclictest231ktimers/100:05:151
398116992311,7cyclictest0-21swapper/123:55:271
39811299233,2cyclictest0-21swapper/020:43:340
398112992317,4cyclictest432607-21kworker/u8:3+events_unbound21:05:570
398112992316,3cyclictest0-21swapper/022:35:490
398112992316,3cyclictest0-21swapper/020:01:540
398112992314,6cyclictest427592-21kworker/u8:1+events_unbound20:45:410
398112992314,6cyclictest121ktimers/021:55:010
398112992313,8cyclictest0-21swapper/020:35:290
398112992313,7cyclictest413364-21proc_pri19:50:240
39811299230,20cyclictest479295-21chrt23:00:310
39811299230,19cyclictest0-21swapper/023:54:330
398125992212,7cyclictest381rcuc/320:15:143
398121992217,2cyclictest0-21swapper/223:45:222
398121992216,3cyclictest0-21swapper/222:39:592
398121992216,3cyclictest0-21swapper/221:05:272
398121992215,4cyclictest0-21swapper/222:55:012
398121992214,4cyclictest0-21swapper/222:56:182
398116992216,3cyclictest0-21swapper/119:25:211
398116992215,3cyclictest0-21swapper/121:05:171
39811299221,8cyclictest458046-21ntpq22:00:200
39811299221,8cyclictest437704-21users21:00:260
39812199218,11cyclictest398105-21cyclictest19:50:152
398121992115,4cyclictest0-21swapper/220:50:252
398121992114,4cyclictest486070-21grep23:20:262
398121992114,4cyclictest448262-21kworker/u8:0+events_unbound21:35:242
39811699211,5cyclictest131rcu_preempt23:20:121
398116992115,3cyclictest0-21swapper/123:40:151
398116992114,3cyclictest2-21kthreadd21:35:001
398116992113,5cyclictest0-21swapper/120:20:201
398116992111,7cyclictest452324-21/usr/sbin/munin21:45:171
398116992111,6cyclictest0-21swapper/122:15:261
398116992110,7cyclictest0-21swapper/123:10:261
398112992114,5cyclictest121ktimers/019:15:040
398121992014,3cyclictest0-21swapper/223:25:202
398121992014,3cyclictest0-21swapper/223:25:202
398121992013,4cyclictest311ktimers/222:45:242
398121992012,6cyclictest53-21kcompactd000:10:162
398121992010,8cyclictest427009-21proc_pri20:30:222
398116992015,3cyclictest398105-21cyclictest21:50:101
398116992011,6cyclictest445268-21/usr/sbin/munin21:25:131
39811299201,3cyclictest0-21swapper/020:25:030
39811299201,3cyclictest0-21swapper/020:25:030
39812199189,6cyclictest416854-21/usr/sbin/munin20:00:232
398121991811,5cyclictest311ktimers/222:30:222
398121991811,5cyclictest311ktimers/222:30:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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