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2026-05-02 - 10:44

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 792 highest latencies:
System rackbslot5s.osadl.org (updated Sat May 02, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2376911996050,6cyclictest208-21systemd-logind19:56:450
2376920994937,8cyclictest2470154-21munin-plugin-st23:40:012
2376916994638,4cyclictest2491020-21cron00:40:001
2376911994638,4cyclictest2421977-21cron21:20:000
2376923994535,7cyclictest2416871-21cron21:05:013
2376923994535,7cyclictest2416871-21cron21:05:013
2376920994432,8cyclictest2427476-21fschecks_count21:35:152
2376920994432,7cyclictest2390662-21grep19:45:262
2376916994436,5cyclictest2428816-21munin-plugin-st21:40:011
2376911994436,4cyclictest0-21swapper/019:50:010
2376916994333,7cyclictest2387688-21sendmail19:40:011
2376911994233,5cyclictest208-21systemd-logind21:01:560
2376911994233,5cyclictest208-21systemd-logind21:01:560
2376920994029,7cyclictest0-21swapper/219:15:012
2376920993931,4cyclictest0-21swapper/200:25:012
2376916993928,7cyclictest2459466-21unixbench_multi23:05:221
2376911993931,5cyclictest2484245-21idleruntime-cro00:20:010
2376923993827,7cyclictest2445811-21grep22:25:253
2376916993826,6cyclictest0-21swapper/119:50:241
2376911993832,4cyclictest2384271-21munin-plugin-st19:30:010
2376923993727,6cyclictest0-21swapper/320:20:013
2376923993727,6cyclictest0-21swapper/300:20:013
2376920993724,9cyclictest0-21swapper/223:00:002
2376920993722,10cyclictest2408346-21munin-run20:40:002
2376916993725,7cyclictest0-21swapper/122:50:241
2376911993726,6cyclictest0-21swapper/022:55:240
2376920993627,5cyclictest0-21swapper/220:50:012
2376911993628,5cyclictest2437696-21kworker/u8:1+events_unbound22:27:060
2376911993626,7cyclictest2430524-21auditctl21:45:010
2376911993626,6cyclictest0-21swapper/023:55:000
2376920993524,5cyclictest2419868-21grep21:10:252
2376916993527,4cyclictest0-21swapper/123:45:001
2376916993527,4cyclictest0-21swapper/123:10:231
2376916993527,4cyclictest0-21swapper/122:05:151
2376916993525,6cyclictest0-21swapper/122:45:221
2376916993525,6cyclictest0-21swapper/122:45:221
2376916993525,6cyclictest0-21swapper/119:20:011
2376916993524,6cyclictest0-21swapper/121:45:241
2376911993527,5cyclictest0-21swapper/020:30:010
2376911993519,12cyclictest121ktimers/021:20:120
2376923993426,4cyclictest0-21swapper/319:16:413
2376923993425,5cyclictest0-21swapper/321:16:563
2376923993424,6cyclictest0-21swapper/320:35:243
237692099343,22cyclictest2401338-21sendmail-msp20:20:012
2376920993422,8cyclictest2476723-21grep23:55:262
2376920993422,8cyclictest0-21swapper/222:10:012
2376920993420,9cyclictest311ktimers/220:00:142
2376920993420,9cyclictest311ktimers/220:00:132
2376916993426,5cyclictest2467987-21grep23:30:241
2376916993425,6cyclictest0-21swapper/122:05:011
2376916993422,7cyclictest0-21swapper/120:35:231
2376911993427,4cyclictest2466736-21cron23:30:010
2376923993325,4cyclictest2428809-21kthreadd21:40:003
2376923993324,5cyclictest0-21swapper/321:52:003
2376923993323,7cyclictest2443253-21fschecks_count22:20:153
2376920993326,4cyclictest2480791-21latency_hist00:10:012
2376920993325,4cyclictest0-21swapper/219:15:232
2376916993325,5cyclictest0-21swapper/123:40:001
2376916993323,7cyclictest0-21swapper/100:05:001
2376916993323,6cyclictest0-21swapper/123:55:001
2376916993323,6cyclictest0-21swapper/119:45:251
2376916993322,7cyclictest0-21swapper/120:30:251
2376916993322,6cyclictest0-21swapper/100:20:251
2376923993225,4cyclictest2378110-21unixbench_singl19:10:253
2376923993225,4cyclictest0-21swapper/323:25:263
2376923993223,5cyclictest0-21swapper/320:25:243
2376920993223,4cyclictest0-21swapper/220:55:152
2376920993222,7cyclictest2434170-21sort21:55:012
2376920993222,5cyclictest0-21swapper/222:05:012
2376920993222,5cyclictest0-21swapper/219:35:262
2376920993220,7cyclictest0-21swapper/220:40:262
2376920993220,10cyclictest311ktimers/219:30:122
2376916993223,6cyclictest2378122-21unixbench_singl19:10:271
2376916993223,5cyclictest0-21swapper/123:58:031
2376916993222,6cyclictest0-21swapper/122:10:261
2376916993222,6cyclictest0-21swapper/121:40:241
2376916993222,6cyclictest0-21swapper/121:10:251
2376916993222,6cyclictest0-21swapper/100:20:011
2376916993221,6cyclictest0-21swapper/120:50:011
2376916993220,9cyclictest2463328-21cron23:20:011
2376911993221,8cyclictest2481627-21runrttasks00:10:210
2376923993124,4cyclictest0-21swapper/300:05:313
2376923993123,4cyclictest0-21swapper/320:05:253
2376920993123,6cyclictest2425081-21kworker/u8:3+events_unbound22:22:052
2376920993123,4cyclictest0-21swapper/220:55:012
2376920993123,4cyclictest0-21swapper/200:39:592
2376920993122,5cyclictest0-21swapper/221:30:262
2376920993120,8cyclictest2471993-21ls23:45:012
2376920993120,7cyclictest2450933-21grep22:40:242
237692099311,3cyclictest131rcu_preempt20:10:122
2376916993122,5cyclictest0-21swapper/121:35:001
2376916993120,7cyclictest2415569-21cut21:00:151
2376916993120,7cyclictest2415569-21cut21:00:151
2376916993120,7cyclictest0-21swapper/121:25:011
2376916993120,6cyclictest0-21swapper/100:05:301
2376911993125,3cyclictest0-21swapper/019:35:000
2376911993122,6cyclictest2444577-21cron22:25:010
2376923993023,4cyclictest2424140-21fschecks_time21:25:163
2376923993022,6cyclictest391ktimers/323:30:133
2376923993022,5cyclictest2477181-21kthreadd00:00:013
2376920993022,5cyclictest2454808-21munin-plugin-st22:55:002
2376920993022,4cyclictest0-21swapper/222:45:232
2376920993022,4cyclictest0-21swapper/222:45:232
2376920993022,4cyclictest0-21swapper/219:25:262
2376920993021,5cyclictest438-21cron21:20:002
2376920993021,5cyclictest0-21swapper/223:20:252
2376920993021,4cyclictest0-21swapper/221:00:162
2376920993021,4cyclictest0-21swapper/221:00:152
2376920993020,6cyclictest0-21swapper/221:55:162
2376920993015,5cyclictest2425081-21kworker/u8:3+events_unbound23:25:012
2376916993023,5cyclictest2434166-21latency_hist21:55:001
2376916993022,5cyclictest0-21swapper/120:25:011
2376916993020,6cyclictest0-21swapper/120:10:151
2376916993020,6cyclictest0-21swapper/119:25:251
2376916993019,7cyclictest0-21swapper/123:45:291
2376911993023,4cyclictest0-21swapper/020:20:240
2376911993022,5cyclictest0-21swapper/020:45:010
2376923992924,3cyclictest2394287-21kworker/u8:0+events_unbound20:01:473
2376923992924,3cyclictest2394287-21kworker/u8:0+events_unbound20:01:463
2376923992923,3cyclictest0-21swapper/323:45:003
2376923992922,4cyclictest2391086-21latency_hist19:50:013
2376923992922,4cyclictest0-21swapper/320:10:253
2376923992921,4cyclictest0-21swapper/321:50:013
2376923992921,4cyclictest0-21swapper/321:30:263
2376923992917,9cyclictest2456531-21basename22:59:593
237692099292,4cyclictest131rcu_preempt20:05:122
2376920992921,4cyclictest0-21swapper/221:45:142
2376920992919,5cyclictest0-21swapper/223:05:002
2376920992918,8cyclictest2440249-21ntp_offset22:10:212
2376920992918,7cyclictest2425002-21grep21:25:252
2376916992921,4cyclictest0-21swapper/122:35:251
2376916992920,5cyclictest0-21swapper/120:00:011
2376916992915,8cyclictest0-21swapper/122:30:241
2376911992921,5cyclictest0-21swapper/023:05:010
2376911992920,7cyclictest2424482-21tr21:25:210
237692399287,8cyclictest131rcu_preempt21:20:113
2376923992821,4cyclictest0-21swapper/319:35:253
2376923992821,4cyclictest0-21swapper/319:20:223
2376923992821,3cyclictest0-21swapper/319:50:173
2376923992820,4cyclictest0-21swapper/320:50:223
2376923992819,6cyclictest2484603-21fschecks_count00:20:163
2376923992819,5cyclictest0-21swapper/300:28:343
2376923992818,6cyclictest0-21swapper/323:05:233
2376920992821,4cyclictest2445877-21unixbench_singl22:25:252
2376920992820,4cyclictest0-21swapper/223:50:132
2376916992820,4cyclictest0-21swapper/119:40:241
2376916992819,5cyclictest0-21swapper/119:20:121
2376916992818,6cyclictest0-21swapper/119:30:261
2376911992821,4cyclictest2491027-21cron00:40:000
2376911992821,3cyclictest0-21swapper/020:40:010
2376911992820,5cyclictest0-21swapper/022:00:010
2376911992820,4cyclictest0-21swapper/023:25:000
2376911992819,5cyclictest0-21swapper/022:50:230
2376911992818,7cyclictest2479274-21grep00:05:200
2376911992818,5cyclictest24677772sleep023:30:250
2376923992721,4cyclictest2463063-21sh23:17:003
2376923992721,4cyclictest2437696-21kworker/u8:1+events_unbound22:32:053
2376923992720,5cyclictest2431861-21kworker/u8:0+events_unbound21:57:023
2376923992719,5cyclictest0-21swapper/322:05:243
2376923992717,6cyclictest0-21swapper/300:33:363
237692099273,17cyclictest2473373-21head23:45:292
237692099273,16cyclictest1-21systemd20:31:512
2376920992721,4cyclictest2437696-21kworker/u8:1+events_unbound22:37:032
2376920992716,6cyclictest0-21swapper/223:20:012
237692099271,5cyclictest131rcu_preempt21:20:112
2376916992717,6cyclictest0-21swapper/121:05:251
2376916992717,5cyclictest0-21swapper/123:00:281
2376916992717,5cyclictest0-21swapper/100:10:251
2376916992716,7cyclictest0-21swapper/120:15:151
2376911992720,4cyclictest13850irq/36-mmc121:40:000
2376911992718,6cyclictest0-21swapper/021:55:010
2376911992718,6cyclictest0-21swapper/000:30:240
2376911992717,6cyclictest2441174-21taskset22:15:010
2376923992620,4cyclictest2469991-21kworker/u8:1+events_unbound00:13:273
2376923992619,4cyclictest0-21swapper/322:40:153
2376923992618,5cyclictest0-21swapper/322:39:593
2376923992618,5cyclictest0-21swapper/320:50:003
2376923992614,9cyclictest2489558-21apt-get00:35:093
2376920992619,5cyclictest2396073-21kworker/u8:2+events_unbound20:28:412
2376920992617,5cyclictest0-21swapper/219:55:252
2376920992613,8cyclictest2418139-21grep21:05:252
237692099260,5cyclictest131rcu_preempt23:05:102
2376916992616,6cyclictest0-21swapper/120:50:231
237691199269,8cyclictest11-21ksoftirqd/020:59:180
237691199269,4cyclictest131rcu_preempt23:15:230
237691199267,10cyclictest131rcu_preempt21:12:150
2376911992620,3cyclictest0-21swapper/022:40:000
2376911992619,4cyclictest2413044-21head20:50:230
2376911992619,4cyclictest0-21swapper/023:40:260
2376911992619,4cyclictest0-21swapper/021:45:240
2376911992618,5cyclictest0-21swapper/022:45:230
2376911992618,5cyclictest0-21swapper/022:45:230
2376911992618,4cyclictest0-21swapper/020:45:250
2376911992617,4cyclictest0-21swapper/022:30:180
2376911992617,4cyclictest0-21swapper/019:21:420
2376911992615,8cyclictest2442870-21latency_hist22:20:010
237691199261,20cyclictest2468891-21fschecks_time23:35:150
237692399254,7cyclictest131rcu_preempt22:15:113
2376923992518,4cyclictest0-21swapper/321:00:013
2376923992517,5cyclictest0-21swapper/322:50:233
2376923992515,7cyclictest2441162-21cron22:15:013
237692099252,16cyclictest2388944-21head19:40:232
2376920992519,3cyclictest0-21swapper/222:30:152
2376920992518,5cyclictest2361323-21kworker/u8:2+events_unbound19:23:062
2376920992518,4cyclictest0-21swapper/222:15:232
2376920992515,5cyclictest0-21swapper/200:15:162
2376916992519,3cyclictest0-21swapper/100:25:231
2376916992518,4cyclictest0-21swapper/122:20:151
2376916992517,5cyclictest0-21swapper/121:15:251
2376916992515,6cyclictest0-21swapper/100:30:251
237691199251,9cyclictest2418570-21cron21:09:590
2376911992519,3cyclictest0-21swapper/019:15:160
237691199251,8cyclictest2401332-21tr20:20:000
2376923992418,4cyclictest2464598-21unixbench_multi23:20:243
2376923992417,4cyclictest0-21swapper/323:00:283
2376923992417,3cyclictest0-21swapper/322:45:143
2376923992417,3cyclictest0-21swapper/322:45:143
2376923992416,4cyclictest0-21swapper/323:50:233
2376923992415,5cyclictest2868751-1kworker/3:1H+kblockd21:10:003
2376923992414,6cyclictest0-21swapper/322:00:243
2376923992413,8cyclictest2394496-21ls20:00:003
2376920992416,6cyclictest2375010-21kworker/u8:1+events_unbound19:50:422
2376916992416,4cyclictest0-21swapper/121:00:011
2376916992415,5cyclictest0-21swapper/122:00:001
2376916992414,7cyclictest438-21cron20:09:591
2376911992420,2cyclictest0-21swapper/022:45:000
2376911992417,4cyclictest0-21swapper/022:05:250
2376911992417,3cyclictest0-21swapper/020:05:260
2376911992416,6cyclictest0-21swapper/023:55:150
2376911992416,4cyclictest0-21swapper/023:05:230
237691199241,4cyclictest2398241-21df20:10:140
2376911992414,7cyclictest2386821-21grep19:35:230
237691199241,19cyclictest0-21swapper/023:14:040
237691199241,19cyclictest0-21swapper/020:34:310
237691199240,20cyclictest0-21swapper/022:02:430
237691199240,20cyclictest0-21swapper/019:14:550
2376923992316,4cyclictest0-21swapper/321:10:243
2376923992316,4cyclictest0-21swapper/319:40:153
2376923992315,5cyclictest0-21swapper/323:40:013
2376920992317,4cyclictest2472600-21kworker/u8:0+events_unbound00:10:372
2376920992313,5cyclictest0-21swapper/200:25:252
2376916992317,3cyclictest0-21swapper/123:20:251
2376916992315,4cyclictest0-21swapper/122:25:241
2376916992311,7cyclictest0-21swapper/121:25:171
2376911992314,6cyclictest0-21swapper/020:00:210
2376911992314,6cyclictest0-21swapper/020:00:200
2376911992313,7cyclictest2486257-21cat00:25:130
2376923992216,4cyclictest391ktimers/323:45:283
2376923992215,5cyclictest0-21swapper/319:25:153
2376923992214,5cyclictest391ktimers/300:00:243
2376923992214,4cyclictest0-21swapper/320:40:273
237692399221,3cyclictest2384492-21apt-get19:30:113
2376923992213,5cyclictest391ktimers/320:30:233
237691699225,4cyclictest131rcu_preempt23:25:171
2376916992215,4cyclictest0-21swapper/120:40:161
2376911992218,2cyclictest0-21swapper/000:00:270
2376911992216,3cyclictest0-21swapper/023:49:590
2376911992214,5cyclictest0-21swapper/021:30:230
237691199221,3cyclictest0-21swapper/019:40:430
237691199220,19cyclictest0-21swapper/019:54:430
2376923992115,3cyclictest0-21swapper/323:10:203
237692099212,13cyclictest2461614-21cron23:15:012
2376920992113,4cyclictest0-21swapper/223:30:192
2376916992115,3cyclictest0-21swapper/122:40:221
2376916992115,3cyclictest0-21swapper/120:05:011
2376916992115,3cyclictest0-21swapper/120:05:011
2376916992113,6cyclictest0-21swapper/120:30:011
2376916992111,7cyclictest2456116-21seq22:55:281
2376911992112,6cyclictest2485325-21cat00:20:250
2376923992014,3cyclictest0-21swapper/320:20:193
2376920992014,4cyclictest311ktimers/221:40:082
2376920992013,4cyclictest2477589-21fschecks_count00:00:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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