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2026-04-09 - 05:04

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 09, 2026 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4052769996253,7cyclictest4052291-21kworker/u8:1+events_unbound19:15:112
4052772995443,7cyclictest4102759-21grep21:30:233
4052769995440,10cyclictest311ktimers/219:40:122
4052772995343,6cyclictest204-21dbus-daemon22:10:203
4052760994835,10cyclictest121ktimers/022:00:120
4052769994734,9cyclictest311ktimers/219:20:112
405276099461,42cyclictest0-21swapper/023:25:110
4052769994535,7cyclictest438-21cron22:20:012
4052769994231,9cyclictest311ktimers/200:00:112
4052760994233,6cyclictest4125567-21sendmail22:40:000
4052772994131,5cyclictest4161982-21latency_hist00:25:003
4052764994128,9cyclictest4106116-21grep21:40:241
4052760994130,7cyclictest4099339-21grep21:20:250
4052769994026,10cyclictest0-21swapper/222:55:012
4052764994031,6cyclictest4072509-21fschecks_time20:05:161
4052764994029,7cyclictest4118090-21grep22:15:251
4052769993925,9cyclictest4085497-21grep20:40:242
4052764993929,7cyclictest4070360-21sendmail20:00:001
4052764993929,7cyclictest4070360-21sendmail20:00:001
4052764993929,7cyclictest4054454-21latency_hist19:15:001
4052764993929,7cyclictest4054454-21latency_hist19:15:001
4052764993928,7cyclictest0-21swapper/119:40:001
4052760993930,7cyclictest4121945-21idleruntime-cro22:30:010
4052760993930,7cyclictest4121945-21idleruntime-cro22:30:000
4052760993928,6cyclictest0-21swapper/022:55:330
4052764993830,4cyclictest0-21swapper/121:25:161
4052764993828,7cyclictest4111258-21grep21:55:261
4052769993731,4cyclictest4128903-21kworker/u8:3+events_unbound22:55:372
4052764993729,5cyclictest4136005-21idleruntime-cro23:10:011
4052764993729,5cyclictest4136005-21idleruntime-cro23:10:011
4052764993726,8cyclictest4119813-21grep22:20:261
4052764993726,8cyclictest4119813-21grep22:20:251
4052760993726,7cyclictest0-21swapper/023:05:150
4052760993726,7cyclictest0-21swapper/023:05:150
4052760993726,7cyclictest0-21swapper/019:25:260
4052772993628,5cyclictest4070348-21munin-run20:00:013
4052772993628,5cyclictest4070348-21munin-run20:00:013
4052769993628,6cyclictest4159184-21kworker/u8:1+events_unbound00:18:292
4052764993627,6cyclictest231ktimers/121:05:111
4052760993629,4cyclictest4166914-21sendmail00:40:010
4052772993527,4cyclictest0-21swapper/323:45:263
4052769993525,6cyclictest4147941-21sh23:45:002
4052764993527,4cyclictest0-21swapper/122:10:161
4052764993526,5cyclictest0-21swapper/100:40:001
4052764993524,7cyclictest4107878-21grep21:45:251
4052760993528,4cyclictest4085903-21cron20:45:010
4052760993525,6cyclictest0-21swapper/020:50:240
4052764993426,5cyclictest4084196-21munin-run20:40:011
4052764993426,4cyclictest0-21swapper/100:00:251
4052760993424,6cyclictest0-21swapper/021:00:000
4052760993424,6cyclictest0-21swapper/019:15:240
405277299338,5cyclictest40-21ksoftirqd/320:55:223
4052772993325,4cyclictest0-21swapper/323:30:243
4052772993323,5cyclictest0-21swapper/322:30:013
4052772993323,5cyclictest0-21swapper/322:30:003
4052769993325,4cyclictest0-21swapper/219:55:152
4052769993325,4cyclictest0-21swapper/219:55:152
4052764993323,7cyclictest4122221-21apt-config22:30:001
4052760993326,3cyclictest0-21swapper/000:30:000
4052760993325,5cyclictest0-21swapper/019:25:010
4052760993324,6cyclictest0-21swapper/021:10:250
4052760993323,7cyclictest0-21swapper/021:45:010
4052772993219,4cyclictest131rcu_preempt19:33:173
4052772993210,11cyclictest4052753-21cyclictest00:30:233
4052769993222,7cyclictest4136003-21apt23:10:012
4052769993222,7cyclictest4136003-21apt23:10:002
4052769993221,6cyclictest0-21swapper/221:35:172
4052764993225,4cyclictest0-21swapper/123:35:251
4052760993225,5cyclictest4118962-21fschecks_time22:20:150
4052760993225,5cyclictest4118962-21fschecks_time22:20:150
4052760993224,5cyclictest0-21swapper/023:15:000
4052760993222,6cyclictest0-21swapper/022:30:260
4052760993222,5cyclictest0-21swapper/021:50:240
405277299313,8cyclictest40-21ksoftirqd/320:45:003
4052772993116,5cyclictest131rcu_preempt19:45:113
4052769993124,3cyclictest0-21swapper/221:30:232
4052769993123,4cyclictest0-21swapper/220:20:152
4052769993121,6cyclictest4161393-21grep00:20:252
4052769993119,8cyclictest4068211-21head19:50:232
4052769993118,10cyclictest311ktimers/223:45:142
4052764993124,4cyclictest0-21swapper/119:45:261
4052764993123,5cyclictest4145304-21kworker/u8:2+events_unbound23:58:151
4052764993121,6cyclictest0-21swapper/122:30:251
4052764993120,7cyclictest4163495-21sh00:30:011
4052760993125,3cyclictest0-21swapper/020:20:250
4052760993124,4cyclictest0-21swapper/000:05:000
4052760993121,6cyclictest0-21swapper/021:15:260
405277299304,8cyclictest40-21ksoftirqd/321:20:163
4052772993023,4cyclictest0-21swapper/322:20:253
4052772993023,4cyclictest0-21swapper/322:20:253
4052772993022,4cyclictest0-21swapper/321:40:253
4052772993022,4cyclictest0-21swapper/319:15:003
4052772993022,4cyclictest0-21swapper/319:15:003
4052772993016,4cyclictest131rcu_preempt20:35:003
4052772993016,11cyclictest204-21dbus-daemon22:15:213
4052769993022,4cyclictest0-21swapper/223:50:152
4052769993022,4cyclictest0-21swapper/223:20:172
4052769993022,4cyclictest0-21swapper/223:05:012
4052769993022,4cyclictest0-21swapper/221:25:262
4052769993021,6cyclictest0-21swapper/220:05:262
4052769993021,5cyclictest0-21swapper/220:40:002
4052764993022,4cyclictest0-21swapper/123:20:251
4052764993022,4cyclictest0-21swapper/100:15:231
405276099307,7cyclictest4144971-21fschecks_time23:35:160
4052760993023,4cyclictest0-21swapper/020:15:250
4052760993020,6cyclictest0-21swapper/019:55:250
4052760993020,6cyclictest0-21swapper/019:55:240
405277299297,12cyclictest40-21ksoftirqd/321:25:153
405277299296,5cyclictest40-21ksoftirqd/319:40:003
4052772992923,4cyclictest391ktimers/300:14:243
4052772992922,4cyclictest0-21swapper/319:25:263
4052772992921,4cyclictest0-21swapper/320:00:153
4052772992920,6cyclictest4146223-21sh23:40:003
4052772992919,7cyclictest391ktimers/323:50:223
4052772992910,10cyclictest131rcu_preempt22:55:313
405276999293,4cyclictest131rcu_preempt22:35:132
4052769992920,6cyclictest0-21swapper/200:30:162
4052769992919,6cyclictest0-21swapper/222:25:262
4052769992919,6cyclictest0-21swapper/222:25:262
4052760992919,6cyclictest0-21swapper/021:55:160
405277299286,14cyclictest131rcu_preempt21:15:253
405277299285,8cyclictest40-21ksoftirqd/323:05:233
405277299285,8cyclictest40-21ksoftirqd/323:05:233
405277299283,7cyclictest40-21ksoftirqd/321:55:193
4052772992822,3cyclictest0-21swapper/323:15:243
4052772992820,4cyclictest0-21swapper/323:55:243
4052772992820,4cyclictest0-21swapper/322:35:153
4052772992816,4cyclictest131rcu_preempt21:05:413
4052772992813,3cyclictest131rcu_preempt00:28:503
4052772992811,10cyclictest131rcu_preempt22:40:193
4052772992810,11cyclictest131rcu_preempt19:22:363
4052769992821,5cyclictest4080453-21kworker/u8:3+events_unbound20:55:062
4052769992820,6cyclictest4115047-21kworker/u8:3+events_unbound22:10:212
4052769992820,4cyclictest0-21swapper/220:45:232
4052764992820,4cyclictest0-21swapper/123:50:141
4052764992820,4cyclictest0-21swapper/120:40:161
4052764992819,5cyclictest4132579-21cron23:00:001
4052764992818,7cyclictest4146704-21grep23:40:131
4052764992818,6cyclictest0-21swapper/121:30:171
4052760992820,5cyclictest0-21swapper/023:20:250
4052760992818,6cyclictest4164720-21grep00:30:260
405277299275,5cyclictest40-21ksoftirqd/323:12:083
405277299274,7cyclictest40-21ksoftirqd/321:05:003
4052772992720,4cyclictest4073294-21tail20:05:253
4052772992719,5cyclictest4154362-21unixbench_singl00:00:243
4052772992718,5cyclictest41099862sleep321:55:003
4052772992717,7cyclictest391ktimers/323:25:173
4052772992717,2cyclictest131rcu_preempt00:35:383
4052772992715,4cyclictest131rcu_preempt20:15:113
4052772992714,7cyclictest0-21swapper/300:07:453
4052772992711,9cyclictest0-21swapper/320:51:163
4052769992721,3cyclictest0-21swapper/221:50:162
4052769992721,3cyclictest0-21swapper/200:15:002
4052769992717,6cyclictest0-21swapper/221:20:172
4052769992716,8cyclictest4080787-21cron20:30:012
4052769992712,10cyclictest1-21systemd21:40:182
4052764992721,3cyclictest0-21swapper/122:35:241
4052764992719,4cyclictest0-21swapper/119:30:231
4052764992719,4cyclictest0-21swapper/119:25:251
4052764992718,6cyclictest0-21swapper/121:10:151
4052760992720,4cyclictest0-21swapper/019:40:240
4052760992718,5cyclictest0-21swapper/020:35:240
4052760992718,5cyclictest0-21swapper/000:10:010
4052760992715,8cyclictest204-21dbus-daemon21:05:060
405277299268,11cyclictest131rcu_preempt23:00:423
405277299268,10cyclictest40-21ksoftirqd/319:40:193
405277299267,6cyclictest40-21ksoftirqd/321:35:113
405277299265,5cyclictest40-21ksoftirqd/322:50:003
4052772992614,10cyclictest391ktimers/321:45:133
4052772992610,5cyclictest131rcu_preempt00:15:153
4052769992618,6cyclictest4127697-21fschecks_time22:45:212
4052769992618,4cyclictest0-21swapper/222:40:152
4052769992616,7cyclictest4153073-21basename00:00:012
4052769992616,7cyclictest4075032-21grep20:10:242
4052764992619,3cyclictest0-21swapper/122:00:191
4052764992619,3cyclictest0-21swapper/100:15:001
4052764992618,4cyclictest0-21swapper/123:45:151
4052764992618,4cyclictest0-21swapper/123:25:151
4052764992618,4cyclictest0-21swapper/121:50:241
4052764992617,5cyclictest0-21swapper/122:55:001
4052764992617,5cyclictest0-21swapper/121:15:161
4052764992616,6cyclictest4121044-21sshd22:25:231
4052760992621,3cyclictest4080799-21kthreadd20:30:000
4052760992620,4cyclictest4080453-21kworker/u8:3+events_unbound21:30:180
4052760992620,3cyclictest0-21swapper/019:50:190
4052760992618,5cyclictest0-21swapper/023:00:270
4052760992617,5cyclictest0-21swapper/021:25:250
405276099261,4cyclictest4092945-21idleruntime-cro21:05:000
405277299258,9cyclictest40-21ksoftirqd/322:30:253
405277299257,9cyclictest40-21ksoftirqd/323:20:013
405277299255,6cyclictest40-21ksoftirqd/319:50:173
405277299255,4cyclictest40-21ksoftirqd/322:05:133
405277299254,6cyclictest40-21ksoftirqd/319:15:133
4052772992519,3cyclictest0-21swapper/322:00:173
405277299251,7cyclictest40-21ksoftirqd/320:49:083
4052772992515,7cyclictest391ktimers/321:10:123
4052772992512,4cyclictest131rcu_preempt23:41:483
405276999257,14cyclictest4163391-21sshd00:28:502
4052769992520,3cyclictest4080453-21kworker/u8:3+events_unbound21:10:062
4052769992519,3cyclictest0-21swapper/220:20:012
4052769992519,3cyclictest0-21swapper/219:35:262
4052769992518,4cyclictest0-21swapper/223:25:252
4052769992517,6cyclictest4161547-21kworker/u8:0+events_unbound00:38:382
4052769992516,5cyclictest4066940-21apt19:50:012
405276999251,12cyclictest0-21swapper/221:15:072
4052764992519,3cyclictest0-21swapper/122:45:281
4052764992517,5cyclictest0-21swapper/122:40:241
4052764992517,5cyclictest0-21swapper/119:20:011
4052764992514,8cyclictest4155887-21cat00:05:241
4052760992521,2cyclictest13550irq/42-30be0000.ethernet00:15:030
4052760992518,3cyclictest0-21swapper/022:40:140
4052760992518,3cyclictest0-21swapper/019:50:000
405276099251,7cyclictest4075044-21unixbench_singl20:10:240
4052760992517,4cyclictest0-21swapper/020:09:560
4052760992516,5cyclictest0-21swapper/021:45:260
4052760992515,7cyclictest4152555-21grep23:55:240
405276099251,20cyclictest0-21swapper/020:49:030
405277299249,9cyclictest131rcu_preempt20:38:173
4052772992414,4cyclictest131rcu_preempt20:25:263
4052772992410,4cyclictest131rcu_preempt22:51:123
4052772992410,4cyclictest131rcu_preempt20:20:243
405277299240,6cyclictest40-21ksoftirqd/320:13:483
4052769992418,3cyclictest0-21swapper/221:45:252
4052769992417,5cyclictest4108519-21kworker/u8:0+events_unbound22:08:252
4052769992416,5cyclictest4115047-21kworker/u8:3+events_unbound22:33:522
4052769992416,5cyclictest0-21swapper/220:30:252
4052764992418,4cyclictest0-21swapper/119:40:101
4052764992418,3cyclictest0-21swapper/120:30:231
4052764992415,6cyclictest0-21swapper/121:25:001
4052764992414,7cyclictest204-21dbus-daemon20:04:551
4052764992413,8cyclictest4086259-21df_inode20:45:131
4052760992417,4cyclictest0-21swapper/020:30:240
4052760992417,3cyclictest0-21swapper/022:14:050
4052760992415,6cyclictest4114110-21grep22:05:190
4052760992415,6cyclictest121ktimers/020:00:120
4052760992414,6cyclictest0-21swapper/023:30:240
405276099241,20cyclictest4060344-21taskset19:30:090
405276099241,19cyclictest0-21swapper/023:18:470
405276099241,19cyclictest0-21swapper/022:52:540
405276099241,19cyclictest0-21swapper/019:13:240
405276099241,19cyclictest0-21swapper/019:13:240
4052769992316,3cyclictest0-21swapper/223:15:162
4052769992315,5cyclictest0-21swapper/222:00:152
4052769992315,5cyclictest0-21swapper/220:00:252
4052769992313,6cyclictest311ktimers/220:55:012
4052769992311,9cyclictest311ktimers/223:10:112
4052764992316,4cyclictest0-21swapper/120:25:251
4052764992312,7cyclictest4090805-21grep20:55:251
4052764992311,8cyclictest4143241-21grep23:30:161
4052760992317,3cyclictest0-21swapper/022:45:250
4052760992316,3cyclictest0-21swapper/000:14:250
4052760992315,5cyclictest0-21swapper/022:15:240
405276099231,18cyclictest0-21swapper/021:35:340
405276099230,21cyclictest0-21swapper/023:46:560
405276099230,19cyclictest0-21swapper/019:38:570
405276099230,19cyclictest0-21swapper/000:20:320
4052769992216,3cyclictest0-21swapper/219:30:012
4052769992215,5cyclictest4052291-21kworker/u8:1+events_unbound19:14:112
4052769992215,5cyclictest4052291-21kworker/u8:1+events_unbound19:14:112
4052769992210,8cyclictest4155998-21grep00:05:242
405276499224,3cyclictest4091649-21cut21:00:161
4052764992216,3cyclictest0-21swapper/123:10:191
4052764992214,5cyclictest0-21swapper/119:50:151
4052764992213,6cyclictest4160429-21ls00:20:121
4052764992213,6cyclictest0-21swapper/120:15:161
4052764992212,7cyclictest204-21dbus-daemon23:15:311
4052764992211,7cyclictest4103566-21grep21:35:131
4052760992213,6cyclictest0-21swapper/023:50:230
4052769992115,3cyclictest0-21swapper/222:20:172
4052769992115,3cyclictest0-21swapper/222:20:162
4052764992115,4cyclictest3646133-1kworker/1:2H+kblockd20:25:001
4052764992115,3cyclictest0-21swapper/100:30:211
4052764992113,5cyclictest231ktimers/123:02:261
4052769992015,2cyclictest0-21swapper/219:32:072
4052769992014,4cyclictest4128903-21kworker/u8:3+events_unbound23:35:082
4052769992013,5cyclictest4128903-21kworker/u8:3+events_unbound23:30:112
4052764992010,7cyclictest4114380-21which22:05:221
4052769991913,3cyclictest4093401-21fschecks_time21:05:142
4052769991910,7cyclictest4092542-21awk21:00:252
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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