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2026-07-22 - 05:53

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 all highest latencies:
System rackbslot5s.osadl.org (updated Wed Jul 22, 2026 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
58786995643,8cyclictest136465-21grep22:50:243
58786995342,7cyclictest60493-21cron19:15:023
58786995043,4cyclictest159111-21idleruntime-cro00:00:003
58782994740,4cyclictest93643-21munin-plugin-st20:50:012
58782994233,5cyclictest103877-21grep21:20:002
58782994230,8cyclictest74396-21grep19:50:242
58782994230,8cyclictest74396-21grep19:50:242
58782994134,4cyclictest119019-21unixbench_singl22:00:272
58782993928,7cyclictest108509-21seq21:30:252
58782993928,7cyclictest108509-21seq21:30:242
58779993933,4cyclictest122556-21kworker/u8:0+events_unbound22:37:151
58782993832,4cyclictest152149-21kworker/u8:2+events_unbound23:48:422
58782993828,6cyclictest0-21swapper/222:50:242
58782993826,5cyclictest164102-21kworker/u8:2+events_unbound00:16:412
58775993831,5cyclictest58766-21cyclictest22:25:000
58786993729,5cyclictest0-21swapper/320:25:293
58782993730,4cyclictest645-21runrttasks21:20:182
58779993727,6cyclictest163805-21grep00:10:241
58782993628,4cyclictest0-21swapper/222:20:012
58782993626,6cyclictest0-21swapper/221:35:262
58782993625,4cyclictest131rcu_preempt19:25:152
58782993624,7cyclictest0-21swapper/219:55:272
58782993623,10cyclictest311ktimers/221:45:142
58779993628,5cyclictest90208-21cron20:40:001
58779993624,8cyclictest81216-21grep20:10:271
58775993629,4cyclictest164600-21seq00:15:160
58775993628,4cyclictest0-21swapper/019:35:000
58786993525,6cyclictest0-21swapper/323:19:593
58786993525,6cyclictest0-21swapper/323:19:593
58782993529,3cyclictest0-21swapper/221:40:272
58782993524,5cyclictest93254-21kworker/u8:3+events_unbound20:53:422
58782993518,9cyclictest131rcu_preempt19:45:222
58782993518,4cyclictest131rcu_preempt22:25:132
58782993516,11cyclictest131rcu_preempt20:25:292
58782993516,10cyclictest131rcu_preempt00:30:292
58779993528,5cyclictest93254-21kworker/u8:3+events_unbound20:47:001
5878699348,6cyclictest40-21ksoftirqd/300:10:013
58786993426,5cyclictest79991-21ls20:10:013
58786993425,4cyclictest0-21swapper/323:45:163
58786993422,7cyclictest0-21swapper/319:55:313
58786993420,11cyclictest391ktimers/321:35:143
58782993426,4cyclictest0-21swapper/223:27:242
58782993426,4cyclictest0-21swapper/223:27:242
58782993426,4cyclictest0-21swapper/220:30:262
58782993424,6cyclictest0-21swapper/223:55:242
58782993420,3cyclictest131rcu_preempt23:35:222
58782993418,5cyclictest131rcu_preempt00:35:022
58782993415,3cyclictest131rcu_preempt20:20:172
58779993426,6cyclictest103528-21kworker/u8:1+events_unbound22:02:111
58779993425,5cyclictest0-21swapper/121:12:021
5878699333,12cyclictest168722-21timerandwakeup00:25:263
58786993325,5cyclictest438-21cron23:29:593
58786993325,5cyclictest438-21cron23:29:593
58786993325,4cyclictest0-21swapper/323:40:003
58786993324,6cyclictest91926-21sh20:45:003
58786993323,7cyclictest122840-21sh22:15:013
58786993310,5cyclictest40-21ksoftirqd/320:15:013
58782993324,6cyclictest0-21swapper/222:25:012
58782993323,8cyclictest311ktimers/220:00:252
58782993323,7cyclictest311ktimers/222:35:252
58782993322,5cyclictest110715-21kworker/u8:2+events_unbound21:55:522
58782993316,10cyclictest66138-21kworker/u8:1-events_unbound19:30:182
58782993314,3cyclictest131rcu_preempt22:42:162
58782993311,7cyclictest32-21ksoftirqd/219:15:012
5877999336,5cyclictest131rcu_preempt21:05:151
58779993323,6cyclictest0-21swapper/122:25:281
58779993321,8cyclictest0-21swapper/119:40:011
58775993326,5cyclictest69321-21unixbench_singl19:35:270
5878699329,6cyclictest40-21ksoftirqd/322:10:013
58786993224,5cyclictest0-21swapper/320:40:013
58786993222,6cyclictest72761-21grep19:45:283
58786993210,7cyclictest40-21ksoftirqd/323:30:183
58782993224,5cyclictest0-21swapper/220:55:172
58782993220,6cyclictest131rcu_preempt00:14:412
58782993217,9cyclictest131rcu_preempt23:50:192
58782993216,5cyclictest131rcu_preempt21:50:192
58782993213,11cyclictest131rcu_preempt20:35:152
58782993211,5cyclictest131rcu_preempt19:40:242
58782993210,12cyclictest32-21ksoftirqd/223:15:252
58782993210,12cyclictest32-21ksoftirqd/223:15:242
58775993226,4cyclictest160452-21kworker/u8:0+events_unbound00:27:320
58786993124,4cyclictest0-21swapper/300:00:283
58786993121,7cyclictest64688-21latency_hist19:25:023
58786993121,6cyclictest125835-21head22:20:253
58782993124,5cyclictest301rcuc/219:21:152
58782993123,5cyclictest0-21swapper/221:25:282
58782993123,5cyclictest0-21swapper/221:25:282
5878299312,13cyclictest32-21ksoftirqd/223:35:002
58782993119,9cyclictest311ktimers/221:10:152
58782993117,3cyclictest131rcu_preempt20:40:262
58782993116,9cyclictest131rcu_preempt22:45:212
58782993115,9cyclictest131rcu_preempt22:05:222
58782993114,10cyclictest131rcu_preempt00:20:202
58782993111,12cyclictest131rcu_preempt23:00:192
58782993110,13cyclictest32-21ksoftirqd/223:11:352
58779993123,4cyclictest0-21swapper/121:25:271
58779993123,4cyclictest0-21swapper/121:25:271
58779993122,5cyclictest0-21swapper/123:50:261
58779993121,6cyclictest0-21swapper/122:20:001
58779993118,9cyclictest58766-21cyclictest21:55:131
58775993124,4cyclictest0-21swapper/021:50:250
58775993123,4cyclictest0-21swapper/000:00:280
58786993023,4cyclictest0-21swapper/321:25:283
58786993023,4cyclictest0-21swapper/321:25:273
58786993019,8cyclictest113240-21ls21:45:193
58786993018,8cyclictest391ktimers/300:30:113
5878699300,11cyclictest164402-21cat00:15:013
5878299309,6cyclictest32-21ksoftirqd/222:15:012
5878299309,12cyclictest32-21ksoftirqd/220:10:182
5878299308,19cyclictest311ktimers/219:35:182
5878299308,12cyclictest32-21ksoftirqd/221:00:562
5878299304,17cyclictest32-21ksoftirqd/223:20:152
5878299304,17cyclictest32-21ksoftirqd/223:20:152
58782993019,4cyclictest131rcu_preempt19:15:202
58782993017,7cyclictest152149-21kworker/u8:2+events_unbound23:44:242
58779993024,4cyclictest155678-21sh23:50:001
58779993024,4cyclictest110715-21kworker/u8:2+events_unbound22:06:401
58779993024,3cyclictest0-21swapper/121:20:011
58779993023,4cyclictest60492-21cron19:15:021
58779993023,3cyclictest0-21swapper/100:15:261
58779993018,9cyclictest145848-21grep23:20:161
58779993018,9cyclictest145848-21grep23:20:161
58775993021,6cyclictest64446-21munin-plugin-st19:25:010
58786992922,3cyclictest0-21swapper/300:35:173
58786992921,4cyclictest0-21swapper/321:00:273
58786992920,6cyclictest0-21swapper/321:45:003
58786992919,7cyclictest119392-21taskset22:04:273
58786992912,12cyclictest0-21swapper/320:30:133
58786992910,4cyclictest40-21ksoftirqd/323:10:223
5878299297,14cyclictest32-21ksoftirqd/222:55:152
5878299293,8cyclictest32-21ksoftirqd/220:05:172
58782992919,7cyclictest311ktimers/223:05:162
58782992913,5cyclictest131rcu_preempt22:30:252
58779992922,5cyclictest170876-21kworker/u8:3+events_unbound00:38:411
58779992918,4cyclictest153875-21kworker/u8:0+events_unbound23:43:501
58775992923,3cyclictest13550irq/42-30be0000.ethernet21:30:230
58775992923,3cyclictest13550irq/42-30be0000.ethernet21:30:220
58775992923,3cyclictest0-21swapper/023:50:250
58775992923,3cyclictest0-21swapper/020:15:000
58775992921,4cyclictest0-21swapper/023:55:250
58775992920,7cyclictest73950-21ntp_offset19:50:190
58775992920,7cyclictest73950-21ntp_offset19:50:190
58775992920,6cyclictest70211-21fschecks_time19:40:170
58775992920,6cyclictest0-21swapper/019:20:010
5878699287,6cyclictest40-21ksoftirqd/319:15:233
5878699285,7cyclictest68713-21date19:35:183
58786992822,3cyclictest0-21swapper/322:35:273
58786992821,4cyclictest93169-21tail20:45:253
58786992821,4cyclictest165940-21sendmail00:20:003
58786992821,4cyclictest0-21swapper/319:40:163
58786992819,2cyclictest131rcu_preempt20:20:443
58786992818,7cyclictest105316-21/usr/sbin/munin21:20:283
58782992819,6cyclictest311ktimers/220:15:192
58779992820,4cyclictest0-21swapper/100:00:271
5877999281,5cyclictest131rcu_preempt23:15:151
5877999281,5cyclictest131rcu_preempt23:15:151
5877999281,4cyclictest131rcu_preempt23:35:131
5877999281,4cyclictest131rcu_preempt22:40:121
5877999280,4cyclictest131rcu_preempt00:30:111
58775992822,4cyclictest85017-21kworker/u8:1+events_unbound20:31:560
58775992822,3cyclictest0-21swapper/022:45:000
58775992822,3cyclictest0-21swapper/022:20:000
58775992821,4cyclictest98332-21head21:00:260
5878699278,11cyclictest40-21ksoftirqd/322:55:023
58786992719,6cyclictest391ktimers/322:45:113
58786992719,4cyclictest0-21swapper/319:51:443
58786992719,4cyclictest0-21swapper/319:51:443
58786992718,5cyclictest103884-21sendmail21:20:003
58786992717,7cyclictest147246-21latency_hist23:25:013
58786992717,7cyclictest147246-21latency_hist23:25:013
58786992714,10cyclictest64991-21/usr/sbin/munin19:25:153
58779992721,4cyclictest85017-21kworker/u8:1+events_unbound20:52:511
58779992721,4cyclictest60277-21kworker/u8:2+events_unbound19:15:331
58779992721,4cyclictest58510-21kworker/u8:0+events_unbound19:31:411
58779992721,4cyclictest105489-21kworker/u8:2+events_unbound21:21:421
58779992719,4cyclictest0-21swapper/122:47:181
58779992719,4cyclictest0-21swapper/120:05:251
58779992718,6cyclictest64202-21kworker/u8:3+events_unbound19:23:411
58779992716,8cyclictest0-21swapper/123:15:001
5877999270,4cyclictest131rcu_preempt22:20:131
58775992721,3cyclictest148863-21kthreadd23:29:590
58775992721,3cyclictest148863-21kthreadd23:29:590
58775992720,4cyclictest0-21swapper/000:05:260
58775992719,5cyclictest135676-21fschecks_time22:50:150
58775992719,4cyclictest0-21swapper/020:15:270
58775992718,5cyclictest167641-21basename00:25:000
5878699269,12cyclictest0-21swapper/320:15:133
5878699264,11cyclictest0-21swapper/321:33:513
5878699264,11cyclictest0-21swapper/321:33:513
58786992618,5cyclictest139866-21unixbench_multi23:00:273
58786992618,5cyclictest124073-21tail22:15:253
58786992618,4cyclictest0-21swapper/322:40:253
58786992617,5cyclictest0-21swapper/319:30:153
58786992616,7cyclictest391ktimers/321:55:123
58786992615,7cyclictest76814-21munin-node20:00:123
58786992613,10cyclictest166425-21/usr/sbin/munin00:20:153
58786992612,11cyclictest127055-21/usr/sbin/munin22:25:193
58779992621,3cyclictest58766-21cyclictest20:20:141
58779992620,3cyclictest0-21swapper/123:30:231
58779992620,3cyclictest0-21swapper/100:00:011
58779992619,5cyclictest110715-21kworker/u8:2+events_unbound21:40:201
58779992619,4cyclictest1213712sleep122:10:121
58779992618,4cyclictest0-21swapper/119:45:001
58775992619,4cyclictest13550irq/42-30be0000.ethernet23:40:000
58775992617,6cyclictest0-21swapper/022:30:000
58775992614,9cyclictest164-21systemd-journal19:26:380
58786992518,4cyclictest0-21swapper/323:05:163
58786992513,9cyclictest95667-21/usr/sbin/munin20:55:163
58786992513,8cyclictest115598-21grep21:50:253
58779992519,3cyclictest0-21swapper/121:45:151
58779992513,4cyclictest138537-21kworker/u8:0+events_unbound23:08:401
58775992520,3cyclictest139874-21unixbench_multi23:00:270
58775992519,3cyclictest0-21swapper/023:19:590
58775992519,3cyclictest0-21swapper/023:19:590
58775992518,5cyclictest0-21swapper/020:09:550
58775992518,4cyclictest119036-21head22:00:280
58775992518,4cyclictest0-21swapper/020:45:250
58775992517,5cyclictest116411-21fschecks_count21:55:160
58775992517,5cyclictest0-21swapper/020:00:260
58775992516,6cyclictest0-21swapper/000:35:010
58775992516,5cyclictest0-21swapper/000:35:270
58775992515,7cyclictest140804-21/usr/sbin/munin23:05:170
5878699248,9cyclictest131rcu_preempt20:53:093
5878699242,19cyclictest99203-21fschecks_time21:05:193
58786992414,7cyclictest101902-21sshd21:12:003
5878699241,15cyclictest0-21swapper/323:52:563
58779992418,4cyclictest103528-21kworker/u8:1+events_unbound21:51:421
58779992418,3cyclictest0-21swapper/119:55:191
58779992418,3cyclictest0-21swapper/119:25:221
58779992417,5cyclictest96700-21kworker/u8:0+events_unbound20:57:341
58779992417,4cyclictest169329-21sh00:30:001
58779992417,4cyclictest0-21swapper/121:00:191
58779992416,5cyclictest0-21swapper/123:00:121
58779992416,5cyclictest0-21swapper/120:30:001
58779992413,8cyclictest1-21systemd22:52:181
5877599241,9cyclictest76599-21idleruntime-cro20:00:010
58775992417,5cyclictest0-21swapper/022:39:380
58775992417,3cyclictest0-21swapper/023:45:210
58775992417,3cyclictest0-21swapper/021:11:310
58775992417,3cyclictest0-21swapper/020:54:120
58775992417,3cyclictest0-21swapper/020:20:270
58775992416,4cyclictest0-21swapper/021:25:270
58775992416,4cyclictest0-21swapper/021:25:270
58775992415,6cyclictest0-21swapper/021:20:230
58775992414,6cyclictest0-21swapper/022:13:280
5877599241,18cyclictest0-21swapper/019:48:350
5877599240,20cyclictest0-21swapper/022:30:460
5878699239,11cyclictest152632-21/usr/sbin/munin23:40:153
5878699231,15cyclictest0-21swapper/322:31:173
5877999232,3cyclictest131rcu_preempt20:15:191
58779992317,3cyclictest0-21swapper/100:20:241
58779992316,3cyclictest0-21swapper/119:50:201
58779992316,3cyclictest0-21swapper/119:50:201
58779992314,6cyclictest110434-21grep21:35:261
5877999230,12cyclictest0-21swapper/122:57:181
58775992318,3cyclictest13550irq/42-30be0000.ethernet23:10:120
58775992316,5cyclictest121ktimers/021:15:240
58775992315,5cyclictest0-21swapper/023:40:160
58775992313,7cyclictest91475-21tail20:40:280
5877599231,20cyclictest0-21swapper/022:05:190
5877599231,20cyclictest0-21swapper/021:45:130
5877599231,20cyclictest0-21swapper/021:35:420
5877599231,18cyclictest0-21swapper/022:45:340
5877599231,18cyclictest0-21swapper/020:25:350
5877599230,19cyclictest0-21swapper/023:33:460
5877599230,19cyclictest0-21swapper/000:10:070
5877999221,6cyclictest90608-21fschecks_count20:40:191
58779992214,4cyclictest0-21swapper/119:45:271
58775992215,3cyclictest0-21swapper/023:20:510
58775992215,3cyclictest0-21swapper/023:20:510
5877599221,3cyclictest137599-21memory22:55:210
5877599221,19cyclictest0-21swapper/020:56:370
58779992115,3cyclictest0-21swapper/120:30:151
58779992114,4cyclictest0-21swapper/121:30:261
58779992114,4cyclictest0-21swapper/121:30:261
58779992110,8cyclictest128731-21df22:30:171
58775992114,3cyclictest0-21swapper/021:06:010
5877999201,17cyclictest231ktimers/100:05:131
58779991912,5cyclictest231ktimers/120:00:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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