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2026-09-15 - 14:09

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 Tue Sep 15, 2026 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3902730995547,4cyclictest3954857-21idleruntime-cro21:40:000
3902730995345,5cyclictest0-21swapper/019:20:130
3902738995134,13cyclictest311ktimers/223:00:122
3902738995034,12cyclictest311ktimers/220:15:142
3902738995034,12cyclictest311ktimers/220:15:132
3902730994943,4cyclictest3944490-21kworker/u8:1+events_unbound21:17:220
3902738994834,10cyclictest311ktimers/221:45:122
3902733994833,11cyclictest231ktimers/119:10:131
3902738994740,4cyclictest3970055-21kworker/u8:3+events_unbound22:22:362
3902738994632,11cyclictest311ktimers/200:00:132
3902742994533,8cyclictest3953149-21cron21:35:013
3902742994533,8cyclictest3953149-21cron21:35:013
3902738994333,6cyclictest3922045-21sed20:00:272
3902733994229,8cyclictest0-21swapper/122:55:001
3902742994132,6cyclictest3924599-21cut20:10:173
3902742994132,6cyclictest3924599-21cut20:10:173
3902730994128,10cyclictest121ktimers/019:25:130
3902742994029,8cyclictest3948044-21idleruntime-cro21:20:003
3902738994032,5cyclictest145-21jbd2/mmcblk1p2-819:47:052
3902730993934,2cyclictest3930652-21kworker/u8:0+events_unbound20:27:100
3902733993831,4cyclictest3954864-21munin-plugin-st21:40:001
3902733993831,4cyclictest3917341-21munin-plugin-st19:50:011
3902730993831,4cyclictest3968720-21munin-plugin-st22:20:000
3902730993830,4cyclictest3913699-21cron19:40:010
3902730993825,8cyclictest4014799-21sshd00:32:560
3902738993730,4cyclictest3992824-21idleruntime-cro23:30:002
3902738993730,4cyclictest3992824-21idleruntime-cro23:30:002
3902733993728,5cyclictest0-21swapper/119:32:011
3902733993722,11cyclictest231ktimers/122:20:121
3902730993728,6cyclictest3970013-21unixbench_singl22:20:260
390273099370,7cyclictest11-21ksoftirqd/022:30:130
3902742993627,6cyclictest4013278-21sh00:30:013
3902742993622,11cyclictest391ktimers/323:50:113
3902733993628,5cyclictest0-21swapper/120:20:141
3902733993625,8cyclictest231ktimers/100:15:131
3902730993610,6cyclictest131rcu_preempt00:35:120
3902730993610,6cyclictest131rcu_preempt00:35:120
3902742993527,4cyclictest0-21swapper/322:40:003
3902742993527,4cyclictest0-21swapper/322:40:003
3902738993526,5cyclictest3998353-21fschecks_time23:45:162
3902730993526,6cyclictest4002596-21unixbench_singl23:55:240
390273099351,8cyclictest11-21ksoftirqd/022:05:130
3902730993514,8cyclictest11-21ksoftirqd/023:15:000
3902742993425,5cyclictest3934396-21sendmail20:40:023
3902738993428,4cyclictest4011382-21kworker/u8:2+events_unbound00:37:512
3902738993428,4cyclictest4011382-21kworker/u8:2+events_unbound00:37:502
3902738993426,4cyclictest0-21swapper/222:40:152
3902730993427,4cyclictest4009894-21idleruntime-cro00:20:000
3902730993427,4cyclictest3941209-21cron21:00:000
3902730993426,5cyclictest3996214-21auditctl23:39:590
3902730993425,6cyclictest3926302-21fschecks_time20:15:170
3902730993425,6cyclictest3926302-21fschecks_time20:15:160
390273099341,8cyclictest11-21ksoftirqd/021:10:130
390274299336,6cyclictest40-21ksoftirqd/319:50:143
3902742993326,3cyclictest0-21swapper/323:00:253
3902742993325,4cyclictest0-21swapper/323:30:263
3902742993325,4cyclictest0-21swapper/321:05:253
3902742993323,6cyclictest0-21swapper/319:15:013
3902738993326,4cyclictest0-21swapper/223:40:002
3902738993326,4cyclictest0-21swapper/221:30:262
3902738993326,4cyclictest0-21swapper/221:30:262
3902733993323,6cyclictest0-21swapper/100:10:001
3902733993323,5cyclictest0-21swapper/122:05:171
390273099333,8cyclictest11-21ksoftirqd/023:50:110
3902730993322,6cyclictest0-21swapper/022:40:250
390273099331,9cyclictest11-21ksoftirqd/021:40:120
3902730993319,5cyclictest131rcu_preempt22:35:160
3902730993319,5cyclictest131rcu_preempt22:35:160
3902730993314,5cyclictest3987700-21kworker/u8:0+events_unbound23:21:150
3902730993311,13cyclictest131rcu_preempt19:30:160
390273099331,10cyclictest11-21ksoftirqd/023:45:120
390274299329,8cyclictest0-21swapper/323:05:163
390274299327,13cyclictest40-21ksoftirqd/323:50:013
3902742993213,4cyclictest131rcu_preempt20:56:113
3902738993225,5cyclictest3978722-21kworker/u8:2+events_unbound22:47:382
3902738993224,4cyclictest0-21swapper/219:35:162
3902738993224,4cyclictest0-21swapper/219:35:012
3902733993225,4cyclictest3944154-21unixbench_multi21:05:241
3902733993225,4cyclictest0-21swapper/123:55:011
3902733993222,7cyclictest0-21swapper/123:20:001
3902730993224,6cyclictest3980453-21kworker/u8:1+events_unbound22:57:400
3902730993222,5cyclictest0-21swapper/021:55:250
3902730993221,5cyclictest131rcu_preempt22:45:520
3902730993215,9cyclictest131rcu_preempt22:02:190
3902730993215,5cyclictest131rcu_preempt19:45:160
390274299319,6cyclictest40-21ksoftirqd/323:35:223
390274299316,6cyclictest40-21ksoftirqd/321:05:013
390274299313,13cyclictest3970527-21sed22:25:013
3902742993124,4cyclictest0-21swapper/320:50:243
3902742993122,6cyclictest0-21swapper/319:35:153
3902738993125,3cyclictest0-21swapper/221:20:012
3902738993124,4cyclictest0-21swapper/221:55:252
3902738993124,4cyclictest0-21swapper/220:40:282
3902738993122,6cyclictest0-21swapper/200:20:002
3902738993121,6cyclictest0-21swapper/223:30:242
3902733993124,4cyclictest3948035-21kthreadd21:20:001
3902733993123,4cyclictest0-21swapper/120:50:151
3902733993121,7cyclictest3996668-21grep23:40:151
3902733993121,7cyclictest0-21swapper/122:30:001
390273099313,22cyclictest131rcu_preempt23:29:330
390273099313,22cyclictest131rcu_preempt23:29:320
3902730993121,7cyclictest3966522-21grep22:10:240
390273099311,9cyclictest11-21ksoftirqd/000:20:140
3902730993112,11cyclictest11-21ksoftirqd/019:10:240
3902730993110,13cyclictest131rcu_preempt23:40:230
390274299306,5cyclictest40-21ksoftirqd/321:55:213
390274299305,7cyclictest40-21ksoftirqd/319:15:043
390274299305,6cyclictest40-21ksoftirqd/321:50:173
390274299305,6cyclictest40-21ksoftirqd/319:45:033
3902742993023,4cyclictest3980653-21sh22:55:003
3902742993023,4cyclictest391ktimers/300:14:013
3902742993021,7cyclictest3971195-21ntp_kernel_pll_22:25:203
3902742993017,9cyclictest391ktimers/320:45:113
3902742993016,8cyclictest131rcu_preempt19:58:033
3902738993024,4cyclictest4007824-21kworker/u8:3+events_unbound00:32:592
3902738993021,5cyclictest0-21swapper/200:25:232
3902738993020,6cyclictest0-21swapper/223:55:002
3902733993022,4cyclictest0-21swapper/123:10:231
3902733993022,4cyclictest0-21swapper/122:55:161
3902733993022,4cyclictest0-21swapper/119:55:271
3902733993021,7cyclictest231ktimers/123:20:161
3902733993021,6cyclictest0-21swapper/122:10:161
3902733993020,7cyclictest0-21swapper/100:34:591
390273099309,12cyclictest11-21ksoftirqd/000:10:230
3902730993022,6cyclictest3928915-21kworker/u8:1+events_unbound20:30:440
3902730993020,6cyclictest0-21swapper/021:20:250
3902730993020,4cyclictest131rcu_preempt00:01:110
3902730993016,5cyclictest3944490-21kworker/u8:1+events_unbound21:09:040
390273099301,3cyclictest0-21swapper/020:45:120
390274299298,5cyclictest40-21ksoftirqd/323:55:243
390274299297,6cyclictest40-21ksoftirqd/320:15:173
390274299297,6cyclictest40-21ksoftirqd/320:15:173
390274299295,5cyclictest40-21ksoftirqd/320:20:173
390274299294,8cyclictest40-21ksoftirqd/320:30:253
390274299294,7cyclictest40-21ksoftirqd/321:40:243
3902742992922,3cyclictest0-21swapper/321:20:253
3902742992913,4cyclictest0-21swapper/300:35:123
3902742992913,4cyclictest0-21swapper/300:35:123
3902738992921,4cyclictest0-21swapper/221:05:242
3902733992920,6cyclictest231ktimers/120:45:121
3902733992919,6cyclictest0-21swapper/100:35:251
3902733992919,6cyclictest0-21swapper/100:35:241
390273099298,6cyclictest3983946-21kworker/u8:1+events_unbound23:08:390
3902730992923,4cyclictest3999427-21kworker/u8:1+events_unbound00:07:520
3902730992923,4cyclictest151rcuc/021:25:130
3902730992922,5cyclictest3904824-21kworker/u8:2+events_unbound19:57:430
390273099291,8cyclictest11-21ksoftirqd/022:50:120
390274299287,7cyclictest40-21ksoftirqd/322:45:003
390274299287,6cyclictest40-21ksoftirqd/322:00:183
390274299285,6cyclictest40-21ksoftirqd/321:50:013
390274299285,6cyclictest40-21ksoftirqd/300:30:263
390274299285,6cyclictest0-21swapper/323:20:063
390274299285,6cyclictest0-21swapper/300:05:223
390274299284,8cyclictest40-21ksoftirqd/319:25:243
390274299284,8cyclictest40-21ksoftirqd/300:20:173
390274299282,8cyclictest3968819-21latency_hist22:20:003
390274299282,7cyclictest40-21ksoftirqd/319:40:253
3902742992821,4cyclictest0-21swapper/322:10:243
3902742992820,5cyclictest0-21swapper/319:20:253
3902742992811,4cyclictest0-21swapper/323:10:183
3902738992821,4cyclictest0-21swapper/223:40:252
3902738992821,4cyclictest0-21swapper/222:50:162
3902738992821,3cyclictest0-21swapper/200:20:262
3902738992820,5cyclictest0-21swapper/222:15:232
3902733992821,4cyclictest0-21swapper/120:05:161
3902733992820,5cyclictest0-21swapper/123:39:591
3902733992820,4cyclictest0-21swapper/121:00:011
3902733992819,6cyclictest0-21swapper/119:40:211
390273099286,11cyclictest11-21ksoftirqd/020:50:180
3902730992813,9cyclictest131rcu_preempt19:50:150
390273099281,13cyclictest0-21swapper/022:29:370
390274299277,6cyclictest40-21ksoftirqd/300:15:143
390274299273,7cyclictest40-21ksoftirqd/323:15:153
3902742992719,5cyclictest0-21swapper/323:25:153
3902742992719,5cyclictest0-21swapper/323:25:153
3902742992717,7cyclictest3951463-21basename21:30:003
3902738992721,4cyclictest3985717-21kworker/u8:2+events_unbound23:15:012
3902738992721,4cyclictest3944490-21kworker/u8:1+events_unbound21:22:222
3902738992720,4cyclictest0-21swapper/220:25:152
3902738992720,4cyclictest0-21swapper/219:50:162
3902738992719,4cyclictest0-21swapper/220:55:242
390273399270,8cyclictest3925846-21cron20:15:011
390273399270,8cyclictest3925846-21cron20:15:011
390273099278,11cyclictest11-21ksoftirqd/021:45:160
390273099276,11cyclictest11-21ksoftirqd/020:35:200
3902730992721,4cyclictest3902723-21cyclictest20:09:250
3902730992719,5cyclictest0-21swapper/020:00:270
3902730992717,7cyclictest151rcuc/020:20:110
3902730992716,6cyclictest0-21swapper/019:40:270
390273099271,4cyclictest3953151-21apt21:35:010
390273099271,4cyclictest3953151-21apt21:35:010
3902730992710,7cyclictest11-21ksoftirqd/023:00:250
390274299268,9cyclictest131rcu_preempt22:31:093
390274299267,6cyclictest40-21ksoftirqd/322:05:243
390274299264,6cyclictest40-21ksoftirqd/323:40:213
390274299264,6cyclictest40-21ksoftirqd/320:05:143
390274299264,5cyclictest40-21ksoftirqd/300:05:013
390274299264,4cyclictest40-21ksoftirqd/320:40:223
3902742992620,3cyclictest0-21swapper/321:10:223
3902742992618,5cyclictest0-21swapper/319:30:253
3902742992616,7cyclictest391ktimers/320:00:263
3902742992614,7cyclictest131rcu_preempt22:45:163
3902738992620,4cyclictest3904824-21kworker/u8:2+events_unbound19:42:032
3902738992620,3cyclictest3965312-21kthreadd22:10:012
3902738992619,3cyclictest0-21swapper/223:20:012
3902738992618,4cyclictest0-21swapper/219:15:252
3902738992617,5cyclictest0-21swapper/223:05:232
3902738992616,7cyclictest0-21swapper/221:45:012
3902733992620,4cyclictest0-21swapper/100:00:121
3902733992619,4cyclictest3958475-21latency_hist21:50:021
3902733992619,4cyclictest0-21swapper/122:35:261
3902733992619,4cyclictest0-21swapper/122:35:261
3902733992619,4cyclictest0-21swapper/119:35:241
3902733992617,6cyclictest0-21swapper/122:40:241
390273099262,4cyclictest0-21swapper/023:15:210
3902730992620,4cyclictest3956185-21kworker/u8:2+events_unbound21:52:280
390273099261,22cyclictest121ktimers/021:00:170
3902730992611,4cyclictest131rcu_preempt20:40:280
390273099261,13cyclictest0-21swapper/000:26:440
390274299252,8cyclictest40-21ksoftirqd/320:25:143
390274299251,7cyclictest40-21ksoftirqd/321:35:243
3902738992519,4cyclictest3936906-21kworker/u8:2+events_unbound20:47:152
3902738992518,5cyclictest3971819-21kworker/u8:2+events_unbound22:35:312
3902738992518,5cyclictest3971819-21kworker/u8:2+events_unbound22:35:312
3902738992518,4cyclictest311ktimers/221:11:182
3902738992517,5cyclictest311ktimers/220:50:122
3902738992514,9cyclictest3902723-21cyclictest19:25:122
390273099258,5cyclictest131rcu_preempt23:30:170
3902730992514,9cyclictest3925593-21auditctl20:12:000
3902730992514,9cyclictest3925593-21auditctl20:12:000
3902738992417,4cyclictest4002290-21mailstats23:55:212
3902738992416,5cyclictest4008167-21basename00:15:012
3902738992416,5cyclictest0-21swapper/223:25:012
3902738992416,4cyclictest0-21swapper/221:35:212
3902733992418,3cyclictest0-21swapper/120:00:271
3902733992418,3cyclictest0-21swapper/119:30:021
3902733992417,4cyclictest0-21swapper/120:40:271
3902733992417,4cyclictest0-21swapper/100:10:251
3902733992412,7cyclictest0-21swapper/123:27:441
3902733992412,7cyclictest0-21swapper/123:27:431
3902738992317,4cyclictest4006248-21kworker/u8:2+events_unbound00:08:262
3902738992317,3cyclictest0-21swapper/222:30:262
3902738992316,4cyclictest3904352-21cron19:15:012
3902738992316,4cyclictest0-21swapper/223:00:002
3902738992314,6cyclictest3933408-21sed20:35:212
3902738992314,6cyclictest3923092-21cat20:05:202
3902738992314,6cyclictest0-21swapper/222:25:192
3902733992317,3cyclictest0-21swapper/123:55:131
3902733992317,3cyclictest0-21swapper/122:15:181
3902733992317,3cyclictest0-21swapper/119:55:011
3902733992316,4cyclictest3956568-21sh21:45:001
3902733992316,4cyclictest0-21swapper/121:55:161
3902733992315,5cyclictest0-21swapper/122:30:211
3902733992315,5cyclictest0-21swapper/119:20:161
3902733992312,6cyclictest0-21swapper/121:00:281
3902738992215,4cyclictest3924091-21kworker/u8:0+events_unbound20:10:102
3902738992215,4cyclictest3924091-21kworker/u8:0+events_unbound20:10:092
3902738992215,3cyclictest0-21swapper/219:20:162
3902733992217,3cyclictest0-21swapper/123:30:211
3902733992213,6cyclictest0-21swapper/119:15:251
3902738992115,3cyclictest0-21swapper/221:25:142
3902738992110,8cyclictest3962250-21df_inode22:00:162
3902733992115,3cyclictest0-21swapper/121:32:031
3902733992115,3cyclictest0-21swapper/121:32:031
3902733992115,3cyclictest0-21swapper/120:30:181
3902733992114,4cyclictest3983644-21unixbench_singl23:00:261
3902733992114,4cyclictest0-21swapper/122:45:231
3902733992113,5cyclictest231ktimers/122:00:191
3902738992015,3cyclictest3965716-21fschecks_count22:10:152
3902738992015,3cyclictest0-21swapper/220:30:192
3902738992013,5cyclictest311ktimers/220:20:122
3902733992014,4cyclictest3924091-21kworker/u8:0+events_unbound20:15:221
3902733992014,4cyclictest3924091-21kworker/u8:0+events_unbound20:15:221
3902733992014,3cyclictest0-21swapper/120:25:161
3902733992013,5cyclictest231ktimers/123:45:201
3902733992013,5cyclictest231ktimers/121:50:131
3902733992013,4cyclictest3949756-21idleruntime-cro21:25:011
390273399201,16cyclictest3984312-21chrt23:05:111
390273899199,7cyclictest3919417-21cut19:55:162
3902733991912,5cyclictest231ktimers/121:10:131
3902733991912,5cyclictest231ktimers/120:35:141
3902733991912,5cyclictest231ktimers/100:20:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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