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2026-07-15 - 07:49

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 Wed Jul 15, 2026 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2372488995340,9cyclictest311ktimers/222:05:152
2372482994737,6cyclictest2452517-21munin-plugin-st23:00:001
2372490994538,4cyclictest2393888-21latency_hist20:10:013
2372482994534,7cyclictest2445039-21grep22:35:241
2372477994536,6cyclictest2404103-21cron20:40:000
2372482994434,6cyclictest2441610-21grep22:25:271
2372488994336,4cyclictest2461059-21cron23:25:002
2372490994235,4cyclictest2431847-21sendmail22:00:013
2372490994235,4cyclictest2376612-21cron19:20:013
2372488994130,6cyclictest0-21swapper/200:15:292
2372490994028,7cyclictest0-21swapper/323:50:003
2372490994028,7cyclictest0-21swapper/320:20:013
2372490994025,10cyclictest2446244-21if_eth122:40:173
2372482994027,9cyclictest2416157-21sshd21:11:091
2372477994031,6cyclictest2404761-21fschecks_time20:40:170
2372477994031,6cyclictest2404761-21fschecks_time20:40:170
2372490993929,7cyclictest2404118-21idleruntime-cro20:40:003
2372488993927,8cyclictest0-21swapper/221:35:012
2372482993931,4cyclictest0-21swapper/119:25:021
2372477993930,6cyclictest2477027-21fschecks_time00:10:160
2372477993928,7cyclictest0-21swapper/019:15:010
2372488993828,6cyclictest2474911-21cron00:05:002
2372488993824,10cyclictest311ktimers/200:20:112
2372477993831,4cyclictest2462762-21cut23:30:010
2372477993825,9cyclictest121ktimers/021:35:140
2372477993825,9cyclictest121ktimers/021:35:130
2372490993723,10cyclictest0-21swapper/322:40:013
2372482993724,9cyclictest0-21swapper/100:15:011
2372477993727,7cyclictest2445492-21sendmail22:40:000
2372477993727,6cyclictest2451255-21fschecks_time22:55:170
2372488993628,5cyclictest0-21swapper/220:00:012
2372488993627,5cyclictest2432243-21fschecks_count22:00:162
2372488993625,7cyclictest2414317-21grep21:05:262
2372488993625,6cyclictest0-21swapper/219:30:152
2372477993629,4cyclictest2397288-21apt20:20:000
2372490993527,4cyclictest0-21swapper/319:55:173
2372490993526,6cyclictest0-21swapper/321:00:003
2372490993524,7cyclictest2471061-21grep23:50:253
2372490993524,7cyclictest2391774-21grep20:00:273
2372488993528,3cyclictest0-21swapper/200:30:252
2372488993524,7cyclictest2436474-21grep22:10:272
2372482993527,4cyclictest0-21swapper/119:15:011
2372482993522,9cyclictest2438233-21grep22:15:271
2372477993527,4cyclictest0-21swapper/023:50:000
2372477993525,6cyclictest0-21swapper/023:15:260
2372490993426,4cyclictest0-21swapper/322:10:273
2372488993427,4cyclictest2466170-21idleruntime-cro23:40:012
2372482993424,7cyclictest0-21swapper/100:05:281
2372482993422,8cyclictest2398591-21grep20:20:261
2372477993426,4cyclictest0-21swapper/021:30:000
2372477993424,6cyclictest0-21swapper/022:31:340
2372477993424,6cyclictest0-21swapper/022:20:250
2372477993423,6cyclictest0-21swapper/019:45:270
2372477993421,9cyclictest0-21swapper/021:55:160
2372490993325,4cyclictest0-21swapper/323:40:233
2372490993322,8cyclictest2416931-21fschecks_time21:15:173
2372488993326,4cyclictest2431827-21sh22:00:012
2372488993324,4cyclictest0-21swapper/200:37:002
2372488993323,6cyclictest2388139-21grep19:50:262
2372488993320,7cyclictest2374466-21munin-node19:15:012
2372482993324,5cyclictest2473201-21sendmail00:00:001
2372482993323,5cyclictest0-21swapper/120:36:001
2372477993326,4cyclictest2395583-21apt20:15:010
2372477993324,6cyclictest2382099-21fschecks_count19:35:160
2372477993324,5cyclictest0-21swapper/023:05:260
2372477993323,6cyclictest0-21swapper/022:25:260
2372477993323,6cyclictest0-21swapper/000:40:000
2372490993225,3cyclictest0-21swapper/323:25:273
2372490993223,6cyclictest2418669-21grep21:20:173
2372490993223,6cyclictest0-21swapper/319:45:003
2372488993225,3cyclictest0-21swapper/221:20:262
2372488993220,8cyclictest2483428-21cron00:30:002
2372482993226,4cyclictest2436822-21kworker/u8:1+events_unbound22:21:341
2372482993224,4cyclictest0-21swapper/123:20:161
2372482993224,4cyclictest0-21swapper/121:25:261
2372477993225,4cyclictest2450342-21unixbench_multi22:50:270
2372477993223,6cyclictest0-21swapper/020:55:010
2372477993223,6cyclictest0-21swapper/019:50:270
2372477993223,5cyclictest0-21swapper/023:55:250
2372477993223,5cyclictest0-21swapper/023:30:270
2372477993223,5cyclictest0-21swapper/023:10:280
2372477993222,6cyclictest0-21swapper/019:55:270
2372490993124,4cyclictest0-21swapper/300:05:273
2372490993123,4cyclictest0-21swapper/323:00:263
2372490993123,4cyclictest0-21swapper/322:50:273
2372490993123,4cyclictest0-21swapper/322:35:013
2372490993122,6cyclictest0-21swapper/321:40:273
2372490993120,7cyclictest2399002-21sh20:25:003
2372488993124,3cyclictest0-21swapper/221:10:272
2372488993123,4cyclictest0-21swapper/223:45:252
2372488993123,4cyclictest0-21swapper/220:15:162
2372488993122,5cyclictest0-21swapper/223:05:002
2372488993121,6cyclictest2407309-21grep20:45:252
2372482993124,4cyclictest2469579-21kthreadd23:50:011
2372482993123,4cyclictest0-21swapper/123:25:261
2372477993123,4cyclictest0-21swapper/000:35:000
2372477993121,6cyclictest0-21swapper/020:10:010
2372477993118,4cyclictest131rcu_preempt20:28:510
2372490993023,4cyclictest0-21swapper/319:20:263
2372490993023,3cyclictest0-21swapper/300:05:003
2372490993020,6cyclictest0-21swapper/321:15:003
237247799307,7cyclictest11-21ksoftirqd/000:05:120
237247799305,7cyclictest0-21swapper/022:00:130
2372477993020,6cyclictest0-21swapper/021:35:000
2372490992922,3cyclictest0-21swapper/300:00:013
2372490992921,5cyclictest0-21swapper/319:15:013
2372490992921,4cyclictest0-21swapper/321:25:263
2372490992919,6cyclictest0-21swapper/322:55:273
2372490992916,10cyclictest0-21swapper/300:19:333
2372490992915,9cyclictest0-21swapper/320:40:173
2372490992915,9cyclictest0-21swapper/320:40:173
2372488992918,8cyclictest0-21swapper/222:20:012
2372488992916,9cyclictest2473374-21cat00:00:012
2372482992921,5cyclictest0-21swapper/121:55:171
2372482992921,4cyclictest0-21swapper/123:50:251
2372482992919,6cyclictest0-21swapper/120:20:011
2372482992918,8cyclictest231ktimers/119:15:121
2372477992921,5cyclictest121ktimers/021:05:220
2372477992920,6cyclictest0-21swapper/021:45:010
2372477992919,6cyclictest0-21swapper/023:50:260
2372477992919,6cyclictest0-21swapper/023:35:260
2372477992919,3cyclictest131rcu_preempt21:19:050
2372477992918,7cyclictest0-21swapper/021:50:260
2372477992910,6cyclictest0-21swapper/020:00:150
2372490992820,5cyclictest2381721-21cron19:35:013
2372490992818,7cyclictest2383448-21sendmail19:40:003
2372490992814,11cyclictest2459698-21df_inode23:20:153
2372490992814,11cyclictest0-21swapper/321:50:213
2372488992820,4cyclictest0-21swapper/220:30:262
2372482992822,3cyclictest0-21swapper/121:45:261
2372482992820,4cyclictest0-21swapper/119:30:241
2372482992820,4cyclictest0-21swapper/100:30:241
2372482992819,5cyclictest0-21swapper/120:50:171
237247799284,5cyclictest151rcuc/000:20:140
237247799283,6cyclictest11-21ksoftirqd/019:30:200
2372477992818,6cyclictest0-21swapper/019:25:260
2372477992818,6cyclictest0-21swapper/000:05:000
2372477992818,5cyclictest0-21swapper/019:15:260
2372477992817,7cyclictest0-21swapper/022:45:270
2372477992817,7cyclictest0-21swapper/000:15:170
2372477992813,4cyclictest131rcu_preempt22:05:180
237247799281,23cyclictest2415200-21grep21:10:160
2372490992720,4cyclictest0-21swapper/300:35:173
2372490992717,7cyclictest2437480-21if_eth022:15:183
2372490992717,7cyclictest0-21swapper/320:45:243
2372488992720,4cyclictest2383437-21sendmail19:40:012
2372488992719,4cyclictest0-21swapper/220:40:262
2372488992719,4cyclictest0-21swapper/220:40:262
2372488992717,6cyclictest0-21swapper/221:00:182
2372488992715,9cyclictest0-21swapper/223:09:542
2372482992720,4cyclictest0-21swapper/121:35:281
2372482992720,4cyclictest0-21swapper/121:35:271
2372482992719,4cyclictest0-21swapper/100:40:001
237247799279,11cyclictest131rcu_preempt22:16:390
237247799279,11cyclictest131rcu_preempt19:40:210
237247799278,5cyclictest0-21swapper/020:55:250
2372477992719,5cyclictest0-21swapper/023:40:160
2372490992620,3cyclictest0-21swapper/322:00:223
2372490992615,9cyclictest391ktimers/320:10:133
2372488992619,3cyclictest0-21swapper/222:40:252
2372488992619,3cyclictest0-21swapper/220:40:022
2372488992618,4cyclictest0-21swapper/219:45:262
2372488992616,7cyclictest2475277-21fschecks_count00:05:172
2372488992616,6cyclictest2458041-21tune2fs23:15:162
2372488992616,6cyclictest0-21swapper/221:15:172
2372488992616,5cyclictest0-21swapper/220:55:282
2372488992613,10cyclictest0-21swapper/221:41:342
2372482992621,3cyclictest2372471-21cyclictest21:40:171
2372482992619,4cyclictest0-21swapper/122:45:281
2372482992618,5cyclictest0-21swapper/120:40:271
2372482992618,5cyclictest0-21swapper/120:40:271
2372482992618,5cyclictest0-21swapper/119:55:011
2372482992618,4cyclictest0-21swapper/120:15:011
2372482992618,4cyclictest0-21swapper/120:00:261
2372482992617,6cyclictest0-21swapper/122:00:251
2372482992615,7cyclictest0-21swapper/122:55:011
237247799265,6cyclictest11-21ksoftirqd/023:03:080
237247799265,6cyclictest11-21ksoftirqd/021:47:520
237247799264,13cyclictest11-21ksoftirqd/021:00:130
2372477992617,5cyclictest0-21swapper/000:25:260
2372490992518,4cyclictest0-21swapper/323:35:163
2372490992518,4cyclictest0-21swapper/323:10:273
2372490992517,5cyclictest0-21swapper/319:25:263
2372490992516,6cyclictest2413281-21cat21:05:013
2372490992516,6cyclictest0-21swapper/319:50:263
2372488992519,3cyclictest0-21swapper/200:10:192
2372488992517,5cyclictest2380055-21ls19:30:012
2372488992517,4cyclictest0-21swapper/222:55:162
2372488992515,7cyclictest0-21swapper/220:10:212
2372488992515,7cyclictest0-21swapper/219:40:182
2372488992513,9cyclictest0-21swapper/220:28:142
2372482992518,4cyclictest0-21swapper/123:40:011
2372482992517,4cyclictest0-21swapper/121:01:061
2372482992516,7cyclictest2411039-21kworker/u8:2+events_unbound21:21:121
2372482992516,7cyclictest231ktimers/120:55:141
2372482992515,5cyclictest2474510-21grep00:00:301
2372482992514,7cyclictest1-21systemd20:46:021
237247799254,7cyclictest11-21ksoftirqd/022:40:040
237247799252,5cyclictest11-21ksoftirqd/020:46:030
2372477992519,4cyclictest151rcuc/021:20:120
2372477992516,6cyclictest121ktimers/023:20:190
2372477992513,3cyclictest131rcu_preempt19:20:140
237249099249,12cyclictest2399519-21/usr/sbin/munin20:25:193
237249099242,4cyclictest2484185-21/usr/sbin/munin00:30:193
2372490992417,4cyclictest0-21swapper/321:05:263
2372490992414,7cyclictest2455974-21latency_hist23:10:013
237248899246,13cyclictest2392173-21cron20:05:012
2372488992417,4cyclictest2409023-21grep20:50:272
2372488992417,3cyclictest0-21swapper/219:15:172
2372488992416,5cyclictest0-21swapper/221:35:212
2372488992416,5cyclictest0-21swapper/221:35:212
2372488992414,7cyclictest2445715-21sed22:40:012
2372488992413,8cyclictest2392979-21ntp_states20:05:212
237248899241,10cyclictest645-21runrttasks23:13:392
2372482992418,3cyclictest0-21swapper/122:40:261
2372482992418,3cyclictest0-21swapper/120:05:231
2372482992416,5cyclictest0-21swapper/119:40:241
2372482992416,4cyclictest0-21swapper/119:35:161
237247799247,4cyclictest0-21swapper/022:10:220
237247799241,7cyclictest11-21ksoftirqd/020:30:120
2372477992414,7cyclictest121ktimers/020:22:070
2372490992317,3cyclictest0-21swapper/320:30:173
2372490992315,5cyclictest0-21swapper/300:20:163
2372490992314,6cyclictest1-21systemd00:11:543
2372490992313,8cyclictest0-21swapper/322:25:013
2372490992313,7cyclictest2464019-21grep23:30:273
2372490992311,9cyclictest2408380-21wc20:50:203
2372490992310,10cyclictest0-21swapper/323:19:333
2372488992317,3cyclictest2440808-21fschecks_time22:25:162
2372488992317,3cyclictest0-21swapper/219:20:172
2372488992316,4cyclictest2467443-21grep23:40:232
2372488992315,5cyclictest0-21swapper/223:55:002
2372488992315,5cyclictest0-21swapper/221:55:022
2372488992314,5cyclictest0-21swapper/222:45:172
2372488992310,9cyclictest0-21swapper/222:30:152
2372482992317,4cyclictest2372471-21cyclictest00:20:261
2372482992315,5cyclictest0-21swapper/121:30:251
2372482992315,5cyclictest0-21swapper/119:55:271
2372482992315,4cyclictest0-21swapper/123:40:241
237248299231,19cyclictest23789612sleep119:25:201
2372490992212,7cyclictest2448127-21grep22:45:213
2372488992216,4cyclictest2427310-21kernelversion21:45:192
2372488992216,3cyclictest0-21swapper/223:30:232
2372488992215,4cyclictest2420322-21fschecks_time21:25:172
2372488992214,4cyclictest0-21swapper/222:21:322
237248899220,7cyclictest0-21swapper/223:26:492
237248299229,9cyclictest2443321-21grep22:30:251
2372482992216,4cyclictest2479944-21kworker/u8:1-ext4-rsv-conversion00:30:001
2372482992216,3cyclictest0-21swapper/123:10:251
2372482992215,5cyclictest231ktimers/100:15:171
2372482992215,3cyclictest0-21swapper/121:05:161
2372482992214,5cyclictest2401123-21fschecks_time20:30:161
2372482992214,5cyclictest231ktimers/123:30:141
2372482992213,6cyclictest0-21swapper/121:20:011
237248299220,6cyclictest2429666-21unixbench_multi21:50:261
2372490992112,6cyclictest2424270-21mailstats21:35:253
2372490992112,6cyclictest2424270-21mailstats21:35:253
2372490992112,6cyclictest0-21swapper/319:45:153
2372490992111,7cyclictest24832152chrt00:27:253
2372488992113,5cyclictest0-21swapper/220:20:262
237248299212,14cyclictest2386841-21cron19:50:011
2372482992115,4cyclictest2433376-21kworker/u8:1+events_unbound22:05:431
2372482992115,3cyclictest0-21swapper/123:00:151
237248299211,10cyclictest0-21swapper/122:14:151
2372490992013,4cyclictest2435256-21latency_hist22:10:023
2372490992011,6cyclictest2439775-21sed22:20:253
237248299202,13cyclictest2455457-21grep23:05:261
2372482992013,5cyclictest231ktimers/120:25:131
237249099192,13cyclictest2422987-21sshd21:31:143
237249099190,7cyclictest0-21swapper/321:49:073
237248299191,4cyclictest0-21swapper/123:15:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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