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2026-03-11 - 05:06

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 Mar 11, 2026 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2478841994840,4cyclictest0-21swapper/123:25:001
2478841994832,12cyclictest231ktimers/119:10:131
2478844994734,10cyclictest311ktimers/223:50:112
2478841994638,5cyclictest2478504-21kworker/u8:2+events_unbound19:15:451
2478848994534,8cyclictest391ktimers/300:20:133
2478844994435,5cyclictest2513680-21sh20:50:002
2478841994233,4cyclictest0-21swapper/122:06:181
2478835994231,7cyclictest2566977-21unixbench_singl23:20:240
2478848994132,6cyclictest2580801-21tail00:00:273
2478848994127,6cyclictest2485893-21kworker/u8:3+events_unbound20:56:043
2478844994134,4cyclictest2563774-21munin-plugin-st23:15:002
2478835994134,3cyclictest2486202-21idleruntime-cro19:30:010
2478835994029,7cyclictest2507308-21grep20:30:170
2478848993933,4cyclictest2511904-21kworker/u8:2+events_unbound21:11:083
2478841993931,4cyclictest0-21swapper/123:00:001
2478835993928,7cyclictest2573958-21grep23:40:240
2478848993830,4cyclictest2482778-21cron19:20:003
2478841993831,4cyclictest2520509-21cron21:10:001
2478841993830,4cyclictest2505175-21munin-plugin-st20:25:001
2478841993830,4cyclictest2505175-21munin-plugin-st20:25:001
2478835993828,6cyclictest0-21swapper/023:20:010
2478835993827,7cyclictest0-21swapper/022:05:250
2478835993827,6cyclictest0-21swapper/000:10:240
2478848993729,4cyclictest0-21swapper/323:06:273
2478848993729,4cyclictest0-21swapper/319:10:193
2478848993725,9cyclictest2487885-21cron19:35:013
2478844993728,5cyclictest0-21swapper/221:45:152
2478844993725,9cyclictest2569301-21cron23:30:002
2478844993725,9cyclictest2569301-21cron23:29:592
2478841993727,7cyclictest2527358-21latency_hist21:30:011
2478835993732,3cyclictest2555031-21cron22:50:000
2478835993726,6cyclictest0-21swapper/020:25:230
2478835993725,8cyclictest2528820-21grep21:30:250
2478848993630,4cyclictest2485893-21kworker/u8:3+events_unbound21:01:073
2478848993627,4cyclictest0-21swapper/323:39:593
2478841993628,5cyclictest0-21swapper/119:45:001
2478835993627,5cyclictest0-21swapper/021:20:000
2478835993624,7cyclictest0-21swapper/021:20:230
2478848993529,4cyclictest2478828-21cyclictest22:40:183
2478848993528,3cyclictest0-21swapper/323:15:003
2478848993527,4cyclictest0-21swapper/320:40:003
2478848993526,6cyclictest2529240-21sh21:35:003
2478848993525,7cyclictest2566979-21grep23:20:253
2478844993527,4cyclictest0-21swapper/222:35:252
2478844993527,4cyclictest0-21swapper/222:35:252
2478841993528,4cyclictest0-21swapper/121:05:011
2478841993526,6cyclictest2502998-21grep20:15:271
2478841993526,6cyclictest2502998-21grep20:15:271
2478835993526,6cyclictest0-21swapper/021:40:010
2478848993426,5cyclictest0-21swapper/319:45:003
2478848993426,4cyclictest0-21swapper/300:35:263
2478848993425,6cyclictest0-21swapper/322:00:003
2478848993424,6cyclictest2494523-21grep19:50:253
2478844993426,4cyclictest0-21swapper/219:45:162
2478844993424,6cyclictest0-21swapper/221:50:162
2478844993423,7cyclictest2485726-21grep19:25:262
2478841993427,4cyclictest2573960-21unixbench_multi23:40:251
2478841993427,4cyclictest2549928-21munin-plugin-st22:35:011
2478841993427,4cyclictest2549928-21munin-plugin-st22:35:001
2478841993426,4cyclictest0-21swapper/100:30:001
2478835993425,6cyclictest0-21swapper/000:40:000
2478835993424,6cyclictest0-21swapper/022:40:000
2478835993424,6cyclictest0-21swapper/022:39:590
2478835993424,6cyclictest0-21swapper/020:35:260
2478848993326,3cyclictest0-21swapper/321:20:013
2478848993325,5cyclictest0-21swapper/319:40:013
2478848993322,8cyclictest2575660-21grep23:45:243
2478848993318,11cyclictest391ktimers/322:55:153
2478844993326,4cyclictest0-21swapper/200:40:012
2478844993325,4cyclictest0-21swapper/220:40:002
2478844993324,5cyclictest0-21swapper/200:25:012
2478841993326,4cyclictest2565684-21munin-run23:20:001
2478835993326,4cyclictest2586361-21cron00:20:010
2478835993324,4cyclictest0-21swapper/022:00:000
2478848993226,3cyclictest0-21swapper/323:55:263
2478848993224,4cyclictest0-21swapper/320:40:173
2478848993222,6cyclictest2577381-21grep23:50:253
2478848993210,5cyclictest2554666-21kworker/u8:2+events_unbound22:45:513
2478844993224,4cyclictest0-21swapper/223:00:152
2478844993224,4cyclictest0-21swapper/222:49:592
2478844993222,7cyclictest2591499-21latency_hist00:35:012
2478841993224,6cyclictest2530922-21kworker/u8:2+events_unbound21:55:121
2478841993224,5cyclictest2534365-21sh21:50:001
2478841993224,4cyclictest0-21swapper/122:40:151
2478841993223,6cyclictest0-21swapper/100:20:151
2478841993223,5cyclictest2480398-21kworker/u8:0+events_unbound19:50:501
2478841993222,7cyclictest2523455-21grep21:15:261
2478835993226,4cyclictest2561747-21kworker/u8:3+events_unbound23:06:280
2478835993223,6cyclictest0-21swapper/019:20:000
2478835993223,5cyclictest2532239-21unixbench_singl21:40:260
2478835993222,6cyclictest0-21swapper/020:55:260
2478835993222,5cyclictest2542408-21grep22:10:250
2478835993221,7cyclictest2489132-21grep19:35:260
2478848993125,4cyclictest2540254-21kworker/u8:3+events_unbound22:26:233
2478848993125,4cyclictest2508103-21unixbench_multi20:30:263
2478848993124,4cyclictest0-21swapper/300:25:163
2478848993123,4cyclictest0-21swapper/320:00:013
2478848993123,3cyclictest0-21swapper/321:20:233
2478848993122,6cyclictest391ktimers/300:10:113
2478844993123,4cyclictest0-21swapper/223:40:002
2478844993123,4cyclictest0-21swapper/200:05:272
2478844993116,3cyclictest131rcu_preempt23:45:102
2478841993123,4cyclictest0-21swapper/123:55:161
2478841993119,8cyclictest2584229-21grep00:10:251
2478835993124,4cyclictest2559897-21unixbench_multi23:00:240
2478835993123,4cyclictest2520088-21grep21:05:260
2478835993123,3cyclictest0-21swapper/022:20:000
2478848993024,3cyclictest0-21swapper/321:50:233
2478848993021,4cyclictest0-21swapper/320:00:173
2478848993014,5cyclictest2480398-21kworker/u8:0+events_unbound19:21:093
2478841993023,4cyclictest0-21swapper/122:50:271
2478841993022,4cyclictest0-21swapper/123:11:291
2478841993022,4cyclictest0-21swapper/122:20:271
2478841993022,4cyclictest0-21swapper/122:00:151
2478841993021,4cyclictest0-21swapper/100:20:011
2478841993019,7cyclictest2542460-21grep22:10:241
2478835993020,6cyclictest0-21swapper/023:35:250
2478848992923,4cyclictest2511904-21kworker/u8:2+events_unbound20:51:053
2478848992922,3cyclictest0-21swapper/300:30:243
2478848992919,7cyclictest2539848-21fschecks_count22:05:153
2478848992919,6cyclictest2506428-21grep20:25:233
2478848992919,6cyclictest0-21swapper/300:10:003
2478844992919,6cyclictest2567391-21cron23:25:002
2478841992923,4cyclictest2485893-21kworker/u8:3+events_unbound20:05:521
2478841992922,4cyclictest0-21swapper/120:55:161
2478841992920,6cyclictest0-21swapper/121:40:251
2478841992919,6cyclictest2575702-21grep23:45:251
247884199291,7cyclictest0-21swapper/100:35:141
2478841992916,8cyclictest231ktimers/121:30:111
2478835992925,2cyclictest0-21swapper/020:10:120
2478835992921,5cyclictest0-21swapper/020:25:010
2478835992921,5cyclictest0-21swapper/020:25:010
2478835992921,4cyclictest0-21swapper/023:49:590
247883599291,4cyclictest131rcu_preempt23:10:130
2478848992821,4cyclictest0-21swapper/322:25:003
2478848992821,4cyclictest0-21swapper/320:10:253
2478848992820,4cyclictest0-21swapper/322:10:163
2478848992818,7cyclictest2538252-21ls22:00:153
2478848992818,6cyclictest0-21swapper/319:45:173
2478844992821,3cyclictest0-21swapper/220:50:262
2478844992818,6cyclictest0-21swapper/221:30:172
2478844992815,10cyclictest2478828-21cyclictest20:30:132
2478841992822,4cyclictest2494603-21kworker/u8:2+events_unbound20:04:451
2478841992820,4cyclictest0-21swapper/123:39:591
2478841992817,8cyclictest2577347-21grep23:50:251
2478841992812,9cyclictest0-21swapper/121:20:101
247884199280,5cyclictest131rcu_preempt22:25:111
2478835992821,5cyclictest2527205-21kworker/u8:1+events_unbound21:54:410
2478835992818,7cyclictest2545249-21tune2fs22:20:150
2478848992718,4cyclictest0-21swapper/320:05:283
2478848992716,8cyclictest2544814-21munin-plugin-st22:20:013
2478844992721,3cyclictest0-21swapper/222:15:002
2478844992720,4cyclictest0-21swapper/221:10:252
2478844992720,3cyclictest0-21swapper/222:25:012
2478844992718,7cyclictest2510990-21missed_timers20:40:202
2478844992718,6cyclictest0-21swapper/219:15:012
247884199279,5cyclictest2487655-21kworker/u8:1+events_unbound19:55:501
247884199277,10cyclictest24-21ksoftirqd/121:10:141
2478841992720,4cyclictest0-21swapper/122:15:251
2478841992719,5cyclictest2569453-21grep23:30:011
2478841992719,5cyclictest2569453-21grep23:30:011
2478841992712,5cyclictest2500545-21kworker/u8:0+events_unbound20:34:041
2478835992720,4cyclictest2564204-21kworker/u8:0+events_unbound23:26:310
2478835992720,4cyclictest2564204-21kworker/u8:0+events_unbound23:26:310
247883599271,23cyclictest629-21snmpd00:00:460
2478848992620,4cyclictest2527603-21latency_hist21:30:013
2478848992619,3cyclictest0-21swapper/321:40:013
2478848992617,6cyclictest0-21swapper/322:55:013
2478844992619,3cyclictest0-21swapper/222:55:002
2478844992615,7cyclictest0-21swapper/221:55:252
2478841992620,4cyclictest2480398-21kworker/u8:0+events_unbound19:30:171
2478841992618,5cyclictest2555034-21latency_hist22:50:001
2478841992616,7cyclictest2579965-21grep00:00:161
247883599262,4cyclictest131rcu_preempt00:20:130
2478835992620,4cyclictest2547792-21unixbench_singl22:25:240
2478835992620,3cyclictest0-21swapper/021:05:000
2478835992619,3cyclictest0-21swapper/022:40:190
2478835992619,3cyclictest0-21swapper/019:20:160
2478835992618,5cyclictest0-21swapper/020:20:010
2478835992618,5cyclictest0-21swapper/020:20:000
247883599261,5cyclictest131rcu_preempt19:45:110
247883599261,3cyclictest131rcu_preempt20:55:000
247883599261,21cyclictest2526488-21ps21:25:220
2478835992610,8cyclictest11-21ksoftirqd/019:30:430
2478848992517,5cyclictest0-21swapper/320:25:013
2478848992517,5cyclictest0-21swapper/320:25:013
247884899251,13cyclictest2586355-21auditctl00:20:013
2478844992518,4cyclictest0-21swapper/223:30:242
2478844992518,4cyclictest0-21swapper/223:30:232
2478844992518,4cyclictest0-21swapper/221:30:012
2478844992518,3cyclictest0-21swapper/222:30:232
2478844992518,3cyclictest0-21swapper/222:30:232
2478844992517,4cyclictest0-21swapper/222:55:182
2478841992518,5cyclictest2485893-21kworker/u8:3+events_unbound20:15:011
2478841992518,3cyclictest0-21swapper/119:25:161
2478841992516,6cyclictest2530108-21grep21:35:231
2478841992515,6cyclictest0-21swapper/120:50:251
247884199251,3cyclictest2489716-21grep19:40:001
2478841992513,4cyclictest2487655-21kworker/u8:1+events_unbound19:46:351
247883599259,13cyclictest2522214-21latency_hist21:15:020
247883599258,4cyclictest151rcuc/020:40:270
2478835992520,2cyclictest0-21swapper/022:05:010
2478835992519,4cyclictest2554666-21kworker/u8:2+events_unbound22:51:270
2478835992518,4cyclictest2496659-21idleruntime-cro20:00:010
2478835992517,4cyclictest0-21swapper/022:30:200
2478835992517,4cyclictest0-21swapper/022:30:190
2478835992515,7cyclictest2577365-21grep23:50:250
2478835992515,7cyclictest2499156-21ntpq20:05:240
2478848992418,3cyclictest0-21swapper/322:30:253
2478848992418,3cyclictest0-21swapper/322:30:243
2478848992417,5cyclictest2568292-21kworker/u8:3+events_unbound23:41:253
2478848992415,4cyclictest0-21swapper/323:29:593
2478848992415,4cyclictest0-21swapper/323:29:593
247884499249,11cyclictest311ktimers/220:25:102
2478844992418,4cyclictest2547766-21unixbench_multi22:25:242
2478844992417,4cyclictest0-21swapper/221:00:242
2478844992416,4cyclictest0-21swapper/223:55:252
2478844992416,4cyclictest0-21swapper/222:40:242
2478844992416,4cyclictest0-21swapper/220:55:272
2478844992415,6cyclictest0-21swapper/221:40:002
2478841992418,3cyclictest0-21swapper/122:35:211
2478841992418,3cyclictest0-21swapper/122:35:211
2478841992417,5cyclictest2564204-21kworker/u8:0+events_unbound23:34:201
2478841992417,5cyclictest2564204-21kworker/u8:0+events_unbound23:34:201
2478841992417,5cyclictest2554666-21kworker/u8:2+events_unbound23:04:371
2478841992416,6cyclictest2554666-21kworker/u8:2+events_unbound23:05:421
247884199240,21cyclictest231ktimers/121:50:241
2478835992417,4cyclictest2497933-21grep20:00:270
2478835992416,5cyclictest0-21swapper/019:50:180
2478835992414,7cyclictest2533473-21ntpq21:45:200
2478835992413,8cyclictest438-21cron00:30:000
247883599241,19cyclictest0-21swapper/019:43:340
247883599241,19cyclictest0-21swapper/000:06:020
2478848992317,3cyclictest0-21swapper/323:00:253
2478848992317,3cyclictest0-21swapper/321:45:153
2478848992315,6cyclictest2511794-21kworker/u8:0+events_unbound20:48:423
2478848992315,6cyclictest2500545-21kworker/u8:0+events_unbound20:15:143
2478848992315,6cyclictest2500545-21kworker/u8:0+events_unbound20:15:143
2478848992315,4cyclictest2565710-21sendmail-msp23:20:013
247884499232,7cyclictest25249402cat21:20:232
247884499232,18cyclictest629-21snmpd19:35:132
2478844992318,3cyclictest2486466-21cpu19:30:122
2478844992317,4cyclictest2478828-21cyclictest20:20:132
2478844992317,4cyclictest2478828-21cyclictest20:20:132
2478844992317,3cyclictest0-21swapper/220:00:252
2478844992316,4cyclictest0-21swapper/221:05:252
2478844992316,3cyclictest0-21swapper/219:45:012
2478841992317,3cyclictest0-21swapper/119:20:171
2478835992316,4cyclictest2479208-21fschecks_time19:10:170
2478835992313,7cyclictest2578881-21cat23:55:250
247883599230,19cyclictest0-21swapper/023:32:130
247883599230,19cyclictest0-21swapper/023:32:130
247884899222,3cyclictest2520046-21unixbench_multi21:05:253
2478848992217,2cyclictest0-21swapper/322:35:183
2478848992217,2cyclictest0-21swapper/322:35:173
2478844992216,3cyclictest2589778-21kthreadd00:30:012
2478844992216,3cyclictest0-21swapper/219:55:172
2478844992215,5cyclictest311ktimers/222:00:102
2478844992214,6cyclictest311ktimers/219:15:202
2478844992214,5cyclictest2564345-21cut23:15:152
2478844992214,5cyclictest0-21swapper/200:05:022
2478844992213,6cyclictest0-21swapper/222:15:172
2478841992212,6cyclictest0-21swapper/120:40:261
2478835992216,3cyclictest13850irq/36-mmc100:35:000
2478835992214,6cyclictest2512392-21tune2fs20:45:160
2478844992115,3cyclictest0-21swapper/223:05:262
2478844992115,3cyclictest0-21swapper/220:10:262
2478844992115,3cyclictest0-21swapper/219:20:262
2478844992114,5cyclictest311ktimers/220:15:242
2478844992114,5cyclictest311ktimers/220:15:242
2478844992114,4cyclictest645-21runrttasks23:40:252
2478844992114,4cyclictest0-21swapper/220:10:012
2478844992111,7cyclictest0-21swapper/200:10:192
247884199217,3cyclictest0-21swapper/120:45:221
2478844992014,4cyclictest2531310-21df_inode21:40:142
2478844992014,4cyclictest2522748-21if_eth121:15:192
2478844991912,5cyclictest311ktimers/219:50:212
2478844991812,4cyclictest311ktimers/222:05:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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