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2026-03-19 - 06:28

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 Mar 19, 2026 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2725341995726,27cyclictest2798779-21cron22:40:010
2725341995318,31cyclictest438-21cron23:50:000
272534199514,12cyclictest13550irq/42-30be0000.ethernet21:35:100
272534199514,12cyclictest13550irq/42-30be0000.ethernet21:35:100
2725346995041,6cyclictest2753320-21kworker/u8:1+events_unbound20:50:201
2725350994937,9cyclictest311ktimers/220:20:122
2725350994737,6cyclictest2766963-21grep21:05:252
2725350994538,5cyclictest2775783-21kworker/u8:2+events_unbound21:50:332
2725346994532,9cyclictest2784712-21sh22:00:011
272534199459,9cyclictest204-21dbus-daemon00:03:420
2725346994437,4cyclictest2734407-21munin-plugin-st19:35:011
2725341994417,24cyclictest0-21swapper/022:25:260
2725350994334,6cyclictest2791969-21sendmail22:20:002
2725346994233,6cyclictest231ktimers/123:15:111
2725346994233,6cyclictest1-21systemd20:15:141
2725355994130,7cyclictest2804479-21fschecks_count22:55:153
2725346994132,6cyclictest231ktimers/119:25:131
2725341994032,4cyclictest0-21swapper/023:55:000
2725341994028,7cyclictest0-21swapper/021:25:270
2725341994028,7cyclictest0-21swapper/021:25:270
272534199401,14cyclictest2738024-21cron19:45:010
2725355993928,7cyclictest0-21swapper/319:20:003
2725355993928,7cyclictest0-21swapper/319:20:003
2725355993928,6cyclictest0-21swapper/320:00:113
2725350993931,4cyclictest0-21swapper/221:10:262
2725350993929,6cyclictest0-21swapper/220:05:012
2725346993931,4cyclictest2747218-21fschecks_time20:10:171
2725341993932,4cyclictest2819457-21cron23:40:000
2725341993932,4cyclictest2819457-21cron23:40:000
2725355993829,6cyclictest2817333-21unixbench_singl23:30:253
2725355993829,6cyclictest2817333-21unixbench_singl23:30:253
2725350993830,4cyclictest0-21swapper/200:00:002
2725350993826,6cyclictest0-21swapper/221:55:242
2725346993829,5cyclictest0-21swapper/119:25:001
2725341993818,3cyclictest13550irq/42-30be0000.ethernet22:10:110
2725355993725,8cyclictest2750188-21sendmail20:20:003
2725346993726,8cyclictest2818989-21grep23:35:261
2725346993726,8cyclictest2818989-21grep23:35:251
2725341993728,6cyclictest2800491-21debian-sa122:45:010
272534199370,21cyclictest0-21swapper/021:02:460
2725355993629,4cyclictest2746562-21munin-plugin-st20:10:013
2725355993629,4cyclictest0-21swapper/300:20:003
2725355993626,7cyclictest2777670-21sh21:40:003
2725355993626,7cyclictest2777670-21sh21:40:003
2725350993617,7cyclictest131rcu_preempt22:25:002
2725341993628,4cyclictest0-21swapper/021:10:260
2725355993524,7cyclictest0-21swapper/319:35:243
272535099354,7cyclictest32-21ksoftirqd/220:50:012
2725350993518,14cyclictest311ktimers/221:48:172
2725350993517,15cyclictest311ktimers/223:20:332
2725346993526,5cyclictest0-21swapper/123:50:231
2725346993524,8cyclictest2803921-21gpgv22:55:011
2725341993527,4cyclictest0-21swapper/023:55:250
2725350993424,8cyclictest2753583-21cron20:30:002
2725350993424,8cyclictest2753583-21cron20:30:002
2725350993424,4cyclictest131rcu_preempt22:40:122
2725350993424,4cyclictest131rcu_preempt19:16:112
2725350993424,4cyclictest131rcu_preempt19:16:112
2725350993423,7cyclictest2743136-21auditctl20:00:012
2725346993424,5cyclictest0-21swapper/123:00:251
2725341993427,4cyclictest2767432-21cron21:10:000
272534199340,31cyclictest0-21swapper/000:20:110
2725355993325,4cyclictest0-21swapper/321:45:163
2725355993325,4cyclictest0-21swapper/320:20:153
272535099336,5cyclictest32-21ksoftirqd/200:25:222
2725350993325,4cyclictest0-21swapper/222:10:002
2725350993325,4cyclictest0-21swapper/200:40:002
2725350993324,6cyclictest2731448-21fschecks_time19:25:162
2725350993323,7cyclictest311ktimers/222:55:162
2725350993323,6cyclictest0-21swapper/222:15:012
2725350993315,6cyclictest131rcu_preempt22:25:122
2725350993315,3cyclictest131rcu_preempt23:30:172
2725350993315,3cyclictest131rcu_preempt23:30:162
2725350993313,8cyclictest2747559-21ntpq20:10:222
2725346993327,4cyclictest2753320-21kworker/u8:1+events_unbound20:35:191
2725346993326,5cyclictest2753320-21kworker/u8:1+events_unbound20:45:201
2725346993325,4cyclictest0-21swapper/120:30:231
2725346993325,3cyclictest0-21swapper/123:45:241
2725346993320,9cyclictest204-21dbus-daemon19:15:041
2725346993320,9cyclictest204-21dbus-daemon19:15:031
2725355993223,6cyclictest0-21swapper/323:25:003
272535099325,7cyclictest32-21ksoftirqd/223:40:012
272535099325,7cyclictest32-21ksoftirqd/223:40:012
2725350993224,4cyclictest0-21swapper/223:15:012
2725350993222,7cyclictest311ktimers/222:45:242
2725350993217,3cyclictest131rcu_preempt00:10:152
2725350993216,3cyclictest131rcu_preempt20:40:212
2725350993216,10cyclictest131rcu_preempt20:15:212
2725350993214,10cyclictest131rcu_preempt19:45:202
2725346993226,4cyclictest2786311-21kworker/u8:3+events_unbound22:05:351
2725346993224,4cyclictest0-21swapper/123:20:241
2725346993222,7cyclictest2741427-21sh19:55:011
2725346993221,7cyclictest2801711-21grep22:45:251
2725341993226,4cyclictest2743146-21munin-plugin-st20:00:010
2725341993225,4cyclictest2793668-21sh22:25:000
2725341993224,5cyclictest2757028-21idleruntime-cro20:40:000
2725355993123,4cyclictest0-21swapper/322:30:243
2725355993121,6cyclictest0-21swapper/300:05:233
272535099319,6cyclictest32-21ksoftirqd/219:15:002
272535099319,14cyclictest32-21ksoftirqd/219:40:232
2725350993121,7cyclictest301rcuc/220:08:052
2725350993120,8cyclictest311ktimers/219:20:172
2725350993116,3cyclictest131rcu_preempt21:15:122
2725350993114,11cyclictest131rcu_preempt20:33:362
2725350993113,4cyclictest131rcu_preempt20:55:142
2725350993110,6cyclictest32-21ksoftirqd/222:55:012
2725346993123,5cyclictest2817752-21auditctl23:35:001
2725346993123,5cyclictest2817752-21auditctl23:35:001
2725341993123,4cyclictest0-21swapper/020:40:210
2725341993121,6cyclictest0-21swapper/022:00:250
2725355993019,6cyclictest0-21swapper/320:55:163
272535099309,12cyclictest32-21ksoftirqd/223:40:012
272535099309,12cyclictest32-21ksoftirqd/223:40:012
272535099308,7cyclictest32-21ksoftirqd/219:35:242
272535099308,7cyclictest32-21ksoftirqd/200:20:002
2725350993017,5cyclictest2755211-21kworker/u8:3+events_unbound21:21:102
2725350993013,10cyclictest131rcu_preempt21:00:272
2725350993012,4cyclictest131rcu_preempt23:03:152
2725350993012,11cyclictest131rcu_preempt22:33:362
2725350993010,5cyclictest131rcu_preempt19:30:152
2725350993010,11cyclictest32-21ksoftirqd/223:30:002
2725346993022,5cyclictest0-21swapper/100:05:231
2725346993022,4cyclictest0-21swapper/122:30:241
2725346993022,4cyclictest0-21swapper/100:20:001
2725346993020,6cyclictest2780629-21grep21:45:251
2725346993019,7cyclictest0-21swapper/120:05:251
2725346993017,9cyclictest204-21dbus-daemon21:05:231
2725341993026,2cyclictest13550irq/42-30be0000.ethernet21:50:180
2725355992921,5cyclictest0-21swapper/323:00:253
2725355992921,4cyclictest0-21swapper/321:30:253
2725355992921,4cyclictest0-21swapper/321:30:243
2725355992921,4cyclictest0-21swapper/320:35:173
272535099297,6cyclictest32-21ksoftirqd/221:25:172
272535099297,6cyclictest32-21ksoftirqd/221:25:172
272535099297,13cyclictest0-21swapper/222:35:132
272535099295,6cyclictest32-21ksoftirqd/223:05:162
272535099295,4cyclictest32-21ksoftirqd/221:30:182
272535099295,4cyclictest32-21ksoftirqd/221:30:182
272535099295,13cyclictest32-21ksoftirqd/223:50:172
272535099292,8cyclictest32-21ksoftirqd/200:30:162
2725350992922,4cyclictest0-21swapper/221:40:152
2725350992919,7cyclictest311ktimers/200:00:172
2725350992918,8cyclictest311ktimers/220:50:152
2725350992917,6cyclictest2810549-21kworker/u8:1+events_unbound23:15:332
2725350992917,5cyclictest2755211-21kworker/u8:3+events_unbound21:37:472
2725350992917,5cyclictest2755211-21kworker/u8:3+events_unbound21:37:462
2725350992916,4cyclictest131rcu_preempt23:47:462
2725350992912,4cyclictest131rcu_preempt00:20:202
2725346992921,4cyclictest0-21swapper/123:40:161
2725346992921,4cyclictest0-21swapper/123:40:161
2725346992921,4cyclictest0-21swapper/121:30:161
2725346992921,4cyclictest0-21swapper/121:30:161
2725346992921,4cyclictest0-21swapper/120:00:011
2725346992920,5cyclictest0-21swapper/121:00:151
2725355992820,4cyclictest2767840-21fschecks_count21:10:153
2725355992817,7cyclictest0-21swapper/323:40:003
2725355992817,7cyclictest0-21swapper/323:40:003
272535099288,13cyclictest32-21ksoftirqd/200:05:202
272535099285,4cyclictest301rcuc/222:04:482
2725346992820,5cyclictest2789619-21unixbench_singl22:10:251
2725346992820,4cyclictest0-21swapper/122:55:251
2725346992820,4cyclictest0-21swapper/121:55:011
2725341992821,3cyclictest0-21swapper/020:20:150
2725341992817,7cyclictest204-21dbus-daemon19:50:090
2725355992722,3cyclictest2835409-21fschecks_count00:25:143
2725355992719,4cyclictest0-21swapper/322:40:253
2725355992719,4cyclictest0-21swapper/322:20:263
2725355992718,5cyclictest0-21swapper/322:45:253
2725355992718,5cyclictest0-21swapper/321:25:243
2725355992718,5cyclictest0-21swapper/321:25:243
2725355992716,8cyclictest2765556-21gpgv21:05:013
2725355992714,7cyclictest204-21dbus-daemon22:25:403
2725350992711,8cyclictest131rcu_preempt20:35:182
2725350992710,9cyclictest131rcu_preempt19:50:192
2725346992719,6cyclictest2753320-21kworker/u8:1+events_unbound20:55:221
2725346992719,5cyclictest0-21swapper/121:20:161
2725346992719,4cyclictest0-21swapper/121:40:151
2725346992718,5cyclictest2836728-21auditctl00:30:001
2725341992721,3cyclictest2760415-21kthreadd20:50:010
2725355992619,4cyclictest2767442-21latency_hist21:10:003
2725355992619,4cyclictest0-21swapper/319:10:103
2725355992618,5cyclictest2787872-21grep22:05:263
2725355992618,5cyclictest0-21swapper/320:40:223
2725355992618,4cyclictest0-21swapper/300:35:163
2725355992616,6cyclictest28081642sleep323:05:183
272534699267,3cyclictest2786806-21date22:05:011
2725346992618,6cyclictest231ktimers/119:35:131
2725346992618,4cyclictest0-21swapper/100:10:141
2725346992617,5cyclictest0-21swapper/100:40:001
2725346992614,9cyclictest231ktimers/123:25:121
2725346992614,8cyclictest204-21dbus-daemon23:58:221
2725341992621,3cyclictest2746150-21unixbench_singl20:05:250
2725341992620,3cyclictest645-21runrttasks21:15:110
2725341992619,3cyclictest0-21swapper/022:15:280
2725341992619,3cyclictest0-21swapper/020:30:230
2725341992615,7cyclictest0-21swapper/023:05:210
2725355992519,3cyclictest0-21swapper/323:40:253
2725355992519,3cyclictest0-21swapper/323:40:253
2725355992519,3cyclictest0-21swapper/323:10:143
2725355992518,4cyclictest391ktimers/323:50:383
2725355992518,4cyclictest2791957-21sh22:20:003
2725355992518,4cyclictest0-21swapper/322:05:003
2725355992514,6cyclictest0-21swapper/319:50:013
2725346992519,4cyclictest2746231-21kworker/u8:2+events_unbound20:25:171
2725346992519,4cyclictest2746231-21kworker/u8:2+events_unbound20:25:171
2725346992519,3cyclictest0-21swapper/122:40:161
2725346992515,7cyclictest2798774-21sh22:40:011
272534199253,3cyclictest2795835-21perl22:30:150
2725341992520,2cyclictest13550irq/42-30be0000.ethernet00:38:410
2725341992518,4cyclictest0-21swapper/023:15:240
2725341992517,4cyclictest0-21swapper/020:00:280
2725341992516,6cyclictest204-21dbus-daemon19:25:050
2725341992515,7cyclictest2817184-21cat23:30:240
2725341992515,7cyclictest2817184-21cat23:30:240
2725341992515,7cyclictest0-21swapper/020:15:210
2725341992515,6cyclictest2779399-21ls21:45:000
2725341992514,8cyclictest204-21dbus-daemon00:28:530
272534199251,20cyclictest0-21swapper/023:27:160
2725355992417,4cyclictest0-21swapper/320:25:253
2725355992417,4cyclictest0-21swapper/320:25:253
2725355992417,3cyclictest0-21swapper/319:55:163
2725355992416,3cyclictest0-21swapper/320:35:013
2725355992415,6cyclictest0-21swapper/322:15:003
2725355992414,7cyclictest2798631-21kworker/u8:3+events_unbound22:50:473
2725346992417,4cyclictest0-21swapper/120:00:271
2725346992415,4cyclictest0-21swapper/121:30:001
2725346992415,4cyclictest0-21swapper/121:29:591
272534199242,4cyclictest2763423-21users20:55:260
2725341992417,3cyclictest0-21swapper/019:15:000
2725341992416,5cyclictest0-21swapper/023:20:240
272534199241,5cyclictest2730608-21users19:20:260
2725341992414,7cyclictest2772084-21grep21:20:250
272534199241,21cyclictest0-21swapper/019:35:070
272534199241,19cyclictest0-21swapper/000:10:440
272534199240,20cyclictest0-21swapper/023:10:530
2725355992316,3cyclictest0-21swapper/323:25:263
2725355992315,4cyclictest2828203-21sh00:05:013
2725355992315,4cyclictest2741021-21head19:50:253
272535599230,12cyclictest0-21swapper/319:28:593
2725346992317,4cyclictest2786311-21kworker/u8:3+events_unbound22:15:401
2725346992317,3cyclictest0-21swapper/122:25:231
2725346992316,4cyclictest0-21swapper/123:05:251
272534199232,17cyclictest2787934-21grep22:05:270
272534199232,17cyclictest2761660-21grep20:50:260
2725341992318,2cyclictest0-21swapper/019:15:020
2725341992318,2cyclictest0-21swapper/019:15:020
2725341992317,3cyclictest0-21swapper/023:40:230
2725341992317,3cyclictest0-21swapper/023:40:230
2725341992317,3cyclictest0-21swapper/019:35:020
2725341992316,4cyclictest0-21swapper/021:45:250
2725341992316,3cyclictest0-21swapper/021:58:550
2725341992316,3cyclictest0-21swapper/000:15:250
272534199231,5cyclictest2738405-21runrttasks19:45:150
2725341992313,7cyclictest2804476-21grep22:55:150
272534199231,20cyclictest0-21swapper/000:30:210
272534199231,18cyclictest0-21swapper/023:01:340
272534199230,19cyclictest0-21swapper/022:50:290
2725355992215,3cyclictest0-21swapper/300:20:243
2725355992214,5cyclictest2782923-21sort21:55:003
2725355992212,6cyclictest0-21swapper/322:00:013
2725346992216,3cyclictest0-21swapper/121:35:221
2725346992216,3cyclictest0-21swapper/121:35:221
2725346992216,3cyclictest0-21swapper/100:30:151
272534699221,17cyclictest2810922-21cron23:15:001
2725341992217,3cyclictest13550irq/42-30be0000.ethernet22:45:120
2725341992215,3cyclictest0-21swapper/020:11:190
272534199221,17cyclictest0-21swapper/020:28:450
272534199221,17cyclictest0-21swapper/020:28:450
2725355992115,3cyclictest0-21swapper/322:35:193
2725355992115,3cyclictest0-21swapper/320:50:173
2725355992114,4cyclictest391ktimers/319:21:363
2725355992114,4cyclictest2760403-21cron20:50:013
2725355992114,4cyclictest2737569-21grep19:40:253
2725355992113,5cyclictest0-21swapper/320:10:033
2725355992110,8cyclictest2733384-21memory19:30:193
2725346992114,5cyclictest231ktimers/100:20:181
2725346992113,4cyclictest0-21swapper/120:40:111
2725341992114,4cyclictest2775558-21grep21:30:250
2725341992114,4cyclictest2775558-21grep21:30:240
2725341992113,5cyclictest0-21swapper/000:05:230
272535599209,8cyclictest2838036-21users00:30:253
2725355992014,3cyclictest2778084-21fschecks_count21:40:153
2725355992010,7cyclictest2830702-21ntpq00:10:193
2725355992010,7cyclictest2771337-21fw_packets21:20:173
272534699207,10cyclictest2738262-21sshd19:45:091
2725346992015,3cyclictest0-21swapper/122:20:241
2725346992013,5cyclictest2746231-21kworker/u8:2+events_unbound20:20:211
2725346991911,5cyclictest231ktimers/100:00:171
272534699181,5cyclictest0-21swapper/119:40:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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