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2026-09-17 - 13:00

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 Sep 17, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
854262995345,5cyclictest53-21kcompactd022:00:241
854267994939,7cyclictest866924-21kworker/u8:1+events_unbound20:04:522
854275994737,7cyclictest391ktimers/321:25:123
854261994629,4cyclictest131rcu_preempt21:23:210
854267994537,5cyclictest1-21systemd22:40:202
854262994539,4cyclictest906460-21kworker/u8:2+events_unbound21:40:081
854261994424,17cyclictest0-21swapper/019:10:020
854262994337,4cyclictest866924-21kworker/u8:1+events_unbound19:54:481
854261994337,4cyclictest939282-21kworker/u8:1+events_unbound23:35:330
854275994234,4cyclictest0-21swapper/322:40:203
854275994231,8cyclictest870155-21sh19:55:013
854261994234,6cyclictest866924-21kworker/u8:1+events_unbound20:19:540
854261994135,4cyclictest0-21swapper/023:40:120
854261994134,5cyclictest885768-21kworker/u8:2+events_unbound20:40:000
854261994133,6cyclictest121ktimers/022:00:120
854275994032,4cyclictest0-21swapper/320:05:003
854275994031,6cyclictest949454-21grep23:40:253
854262994032,4cyclictest0-21swapper/122:10:151
854262994029,5cyclictest918344-21kworker/u8:1+events_unbound22:15:171
854262994029,5cyclictest918344-21kworker/u8:1+events_unbound22:15:171
854261994021,11cyclictest131rcu_preempt00:00:000
854275993932,4cyclictest0-21swapper/300:35:003
854267993918,3cyclictest0-21swapper/221:55:242
854267993916,3cyclictest0-21swapper/222:25:192
854262993932,5cyclictest890729-21kworker/u8:2+events_unbound20:55:001
854262993826,8cyclictest0-21swapper/123:00:001
854262993826,8cyclictest0-21swapper/123:00:001
854261993820,4cyclictest131rcu_preempt22:10:220
854261993819,11cyclictest858906-21kworker/u8:1-events_freezable_power_19:24:320
854275993728,5cyclictest953519-21idleruntime-cro23:55:013
854267993723,10cyclictest311ktimers/222:15:162
854267993723,10cyclictest311ktimers/222:15:162
854261993731,4cyclictest901187-21kworker/u8:1+events_unbound21:35:090
854261993724,4cyclictest131rcu_preempt00:27:240
854261993710,19cyclictest131rcu_preempt22:50:000
854275993628,4cyclictest0-21swapper/323:45:163
854275993625,7cyclictest945993-21grep23:30:233
854267993619,2cyclictest0-21swapper/221:45:102
85426199368,22cyclictest11-21ksoftirqd/019:50:180
854261993627,6cyclictest934313-21cron23:00:000
854261993627,6cyclictest934313-21cron23:00:000
854275993525,6cyclictest0-21swapper/322:30:253
854267993528,4cyclictest0-21swapper/223:25:252
854267993525,6cyclictest918149-21grep22:10:252
854262993527,4cyclictest0-21swapper/121:25:161
854262993527,4cyclictest0-21swapper/100:00:251
854261993526,6cyclictest0-21swapper/022:45:010
854261993525,7cyclictest894221-21grep21:00:250
854261993522,4cyclictest131rcu_preempt23:12:450
854261993521,3cyclictest131rcu_preempt20:41:560
854261993518,4cyclictest131rcu_preempt20:30:470
854261993516,5cyclictest131rcu_preempt22:36:380
854261993514,4cyclictest131rcu_preempt20:10:250
854275993426,4cyclictest0-21swapper/319:55:253
854275993426,4cyclictest0-21swapper/300:25:153
854267993423,8cyclictest924972-21grep22:30:242
854262993426,4cyclictest0-21swapper/121:10:261
85426299342,5cyclictest24-21ksoftirqd/122:50:131
854262993425,5cyclictest0-21swapper/123:25:001
854262993422,9cyclictest231ktimers/120:20:111
85426199349,6cyclictest131rcu_preempt23:00:180
854261993419,4cyclictest131rcu_preempt21:34:390
854261993415,3cyclictest0-21swapper/020:09:580
854261993415,11cyclictest131rcu_preempt21:15:170
854261993414,4cyclictest131rcu_preempt19:47:330
854261993413,10cyclictest131rcu_preempt19:17:350
854261993410,6cyclictest11-21ksoftirqd/020:55:010
854275993325,4cyclictest0-21swapper/322:00:243
854275993325,4cyclictest0-21swapper/300:24:453
854275993325,4cyclictest0-21swapper/300:00:163
854267993325,4cyclictest0-21swapper/223:40:242
854262993326,4cyclictest938992-21unixbench_multi23:10:271
854262993323,6cyclictest910024-21cron21:50:001
854262993322,8cyclictest963985-21sh00:25:001
854262993322,8cyclictest858226-21munin-plugin-st19:20:011
854262993314,5cyclictest131rcu_preempt22:35:121
854261993326,5cyclictest946702-21kworker/u8:2+events_unbound23:53:140
854261993320,5cyclictest131rcu_preempt22:20:240
854261993320,5cyclictest131rcu_preempt20:55:190
854261993316,4cyclictest131rcu_preempt21:12:210
854261993315,11cyclictest131rcu_preempt20:00:150
854261993313,5cyclictest131rcu_preempt19:55:170
854261993313,10cyclictest0-21swapper/019:33:140
854275993226,4cyclictest892970-21sendmail21:00:003
854275993224,5cyclictest968669-21head00:35:253
854275993220,9cyclictest391ktimers/323:20:103
854267993225,3cyclictest0-21swapper/222:40:012
854262993224,4cyclictest0-21swapper/119:25:141
854262993224,4cyclictest0-21swapper/119:25:141
854262993223,4cyclictest0-21swapper/119:30:161
854262993220,9cyclictest231ktimers/123:40:121
85426299321,9cyclictest0-21swapper/120:30:121
85426199326,19cyclictest131rcu_preempt00:05:250
85426199324,6cyclictest11-21ksoftirqd/021:25:050
85426199324,21cyclictest11-21ksoftirqd/000:10:110
854261993224,5cyclictest944774-21idleruntime-cro23:30:000
854261993215,5cyclictest131rcu_preempt21:55:180
854261993214,4cyclictest131rcu_preempt21:07:070
854261993214,3cyclictest0-21swapper/019:27:030
854261993214,3cyclictest0-21swapper/019:27:030
854261993214,10cyclictest131rcu_preempt19:35:230
854261993213,5cyclictest0-21swapper/021:43:510
854261993213,10cyclictest131rcu_preempt21:51:050
854275993124,4cyclictest0-21swapper/321:10:263
854275993123,4cyclictest0-21swapper/321:05:183
85427599311,10cyclictest9179242threads22:10:243
854267993124,4cyclictest0-21swapper/222:20:242
854267993124,3cyclictest0-21swapper/223:45:252
854267993121,5cyclictest0-21swapper/221:10:042
854267993119,9cyclictest311ktimers/220:40:112
854262993124,4cyclictest0-21swapper/122:20:151
854262993119,8cyclictest1-21systemd22:45:211
85426299310,5cyclictest131rcu_preempt22:05:121
854261993119,4cyclictest131rcu_preempt23:20:230
854261993116,5cyclictest923596-21kworker/u8:1-events_freezable_power_22:34:040
854261993115,3cyclictest131rcu_preempt19:40:570
854261993113,11cyclictest131rcu_preempt23:30:140
85426199311,23cyclictest11-21ksoftirqd/021:45:160
854261993112,11cyclictest131rcu_preempt20:30:010
854261993110,6cyclictest11-21ksoftirqd/022:50:120
854261993110,12cyclictest11-21ksoftirqd/022:15:290
854261993110,12cyclictest11-21ksoftirqd/022:15:280
854275993022,4cyclictest0-21swapper/320:30:243
854275993022,4cyclictest0-21swapper/300:10:253
854275993021,6cyclictest887644-21sh20:45:013
854267993024,3cyclictest0-21swapper/219:10:252
854267993023,4cyclictest0-21swapper/223:00:002
854267993023,4cyclictest0-21swapper/222:59:592
854267993022,4cyclictest0-21swapper/220:50:172
854262993024,4cyclictest936028-21cron23:04:591
854262993022,4cyclictest0-21swapper/123:25:151
854262993022,4cyclictest0-21swapper/121:30:241
854262993020,7cyclictest953504-21cron23:55:011
854262993017,9cyclictest231ktimers/119:10:111
85426199307,5cyclictest131rcu_preempt20:20:210
854261993018,4cyclictest131rcu_preempt22:05:360
854261993014,4cyclictest131rcu_preempt00:20:120
854261993012,11cyclictest131rcu_preempt23:05:130
854261993011,4cyclictest131rcu_preempt23:17:540
854275992921,6cyclictest906184-21unixbench_singl21:35:263
854275992921,5cyclictest0-21swapper/319:20:263
854275992920,5cyclictest0-21swapper/321:45:233
854267992922,4cyclictest0-21swapper/220:45:262
854267992920,6cyclictest0-21swapper/200:15:002
854267992919,8cyclictest311ktimers/222:00:112
854262992922,4cyclictest0-21swapper/100:30:261
85426199298,10cyclictest11-21ksoftirqd/000:15:180
854261992918,4cyclictest131rcu_preempt22:25:370
854261992918,4cyclictest131rcu_preempt00:30:450
854261992910,5cyclictest131rcu_preempt20:45:200
854275992822,3cyclictest0-21swapper/322:50:013
854275992821,3cyclictest0-21swapper/323:20:013
854275992820,6cyclictest927104-21kthreadd22:40:013
854275992819,5cyclictest0-21swapper/321:40:273
854267992822,3cyclictest0-21swapper/221:30:242
854267992821,4cyclictest0-21swapper/221:15:262
854267992821,4cyclictest0-21swapper/200:34:592
854267992820,4cyclictest0-21swapper/221:20:242
854267992819,6cyclictest0-21swapper/221:30:012
854267992818,7cyclictest204-21dbus-daemon21:50:112
854267992818,6cyclictest0-21swapper/223:30:242
854262992821,4cyclictest875706-21kthreadd20:10:001
854262992820,6cyclictest890729-21kworker/u8:2+events_unbound20:55:181
854262992820,4cyclictest0-21swapper/123:35:261
854262992820,4cyclictest0-21swapper/120:15:191
854262992819,4cyclictest0-21swapper/100:20:001
85426199288,5cyclictest131rcu_preempt00:35:250
85426199283,7cyclictest11-21ksoftirqd/023:45:230
854275992721,3cyclictest0-21swapper/321:00:153
854275992720,4cyclictest0-21swapper/320:15:283
854275992720,3cyclictest0-21swapper/323:10:173
854275992716,8cyclictest204-21dbus-daemon20:55:013
854275992716,7cyclictest1-21systemd20:39:583
854267992720,4cyclictest940038-21cut23:15:162
854267992719,4cyclictest0-21swapper/221:35:152
854267992719,4cyclictest0-21swapper/220:30:252
854262992721,4cyclictest916623-21kworker/u8:0+events_unbound22:28:411
854262992719,4cyclictest0-21swapper/119:59:501
854261992710,5cyclictest131rcu_preempt19:10:220
854275992619,3cyclictest0-21swapper/321:55:233
854275992618,5cyclictest391ktimers/323:05:133
854275992618,4cyclictest0-21swapper/323:25:253
854267992619,5cyclictest0-21swapper/223:10:182
854267992616,7cyclictest952034-21apt23:50:112
85426299263,4cyclictest131rcu_preempt00:35:131
854262992620,4cyclictest923596-21kworker/u8:1+events_unbound22:31:201
854262992619,4cyclictest0-21swapper/121:00:251
854262992614,4cyclictest131rcu_preempt20:40:351
854262992613,5cyclictest866924-21kworker/u8:1+events_unbound20:00:341
854262992612,7cyclictest24-21ksoftirqd/123:55:231
854262992610,4cyclictest940030-21fschecks_count23:15:171
854262992610,4cyclictest911657-21kworker/u8:2+events_unbound21:59:021
85426199265,7cyclictest11-21ksoftirqd/000:00:200
854275992519,3cyclictest0-21swapper/323:55:233
854275992519,3cyclictest0-21swapper/319:35:153
854275992518,4cyclictest0-21swapper/320:30:013
854275992518,3cyclictest0-21swapper/319:45:263
854275992517,4cyclictest0-21swapper/300:05:193
854267992519,3cyclictest0-21swapper/222:50:142
854267992519,3cyclictest0-21swapper/220:10:212
854267992518,5cyclictest857730-21unixbench_multi19:15:262
854267992518,4cyclictest0-21swapper/200:20:162
854267992517,5cyclictest0-21swapper/221:40:182
854267992514,8cyclictest955777-21df00:00:142
854267992513,9cyclictest957886-21cat00:05:222
854267992511,9cyclictest204-21dbus-daemon23:58:292
854262992519,4cyclictest963619-21kworker/u8:1+events_unbound00:26:421
854262992518,5cyclictest946702-21kworker/u8:2+events_unbound23:48:101
854262992518,4cyclictest0-21swapper/123:05:161
854262992517,5cyclictest0-21swapper/120:45:251
854262992517,4cyclictest0-21swapper/119:50:011
854262992510,4cyclictest896616-21kworker/u8:3+events_unbound21:19:021
854275992419,3cyclictest0-21swapper/320:05:143
854275992417,5cyclictest164-21systemd-journal22:08:403
854275992417,3cyclictest0-21swapper/321:50:143
854275992416,5cyclictest0-21swapper/319:25:233
854275992416,5cyclictest0-21swapper/319:25:233
854275992413,7cyclictest933852-21grep22:55:273
854275992413,7cyclictest933852-21grep22:55:273
854275992412,9cyclictest1-21systemd00:18:423
854267992418,4cyclictest872081-21cut20:00:012
854267992418,4cyclictest854259-21cyclictest22:50:012
854267992418,3cyclictest0-21swapper/223:20:212
854267992418,3cyclictest0-21swapper/219:50:192
854267992417,4cyclictest0-21swapper/220:20:002
854267992417,4cyclictest0-21swapper/200:20:002
854267992417,3cyclictest0-21swapper/219:35:242
854267992416,5cyclictest934727-21fschecks_count23:00:152
854267992416,5cyclictest0-21swapper/220:40:012
854267992414,7cyclictest867191-21cut19:45:172
854267992414,7cyclictest204-21dbus-daemon23:05:292
854267992413,8cyclictest947311-21awk23:35:232
854267992413,8cyclictest895876-21cat21:05:262
854267992413,8cyclictest893323-21df_inode21:00:142
85426299249,5cyclictest953201-21kworker/u8:0+events_unbound00:05:411
854262992417,5cyclictest955140-21kworker/u8:1+events_unbound00:11:051
854262992417,5cyclictest906460-21kworker/u8:2+events_unbound21:39:441
854262992415,2cyclictest24-21ksoftirqd/119:35:241
854262992413,4cyclictest882283-21kworker/u8:1+events_unbound20:36:401
854275992316,3cyclictest0-21swapper/321:20:013
854275992314,6cyclictest866754-21sh19:45:003
854275992313,6cyclictest0-21swapper/320:50:003
854267992313,7cyclictest862246-21wc19:30:192
854267992312,8cyclictest964356-21awk00:25:152
854267992312,8cyclictest859453-21grep19:20:242
85426299235,5cyclictest131rcu_preempt21:50:111
854262992317,4cyclictest859194-21mailstats19:20:241
854262992317,3cyclictest0-21swapper/121:05:211
854262992316,5cyclictest145-21jbd2/mmcblk1p2-820:25:171
854262992316,3cyclictest0-21swapper/122:40:141
854262992314,6cyclictest900272-21tune2fs21:20:151
854275992216,3cyclictest0-21swapper/322:24:593
854275992216,3cyclictest0-21swapper/319:15:043
854275992215,5cyclictest164-21systemd-journal22:18:403
854275992215,5cyclictest164-21systemd-journal22:18:403
854275992215,4cyclictest0-21swapper/321:30:243
854275992214,6cyclictest932738-21latency_hist22:55:003
854275992213,6cyclictest936030-21sh23:05:003
854267992216,3cyclictest0-21swapper/219:40:142
854267992216,3cyclictest0-21swapper/200:35:222
854267992215,5cyclictest0-21swapper/220:20:202
854262992214,4cyclictest0-21swapper/123:30:231
854275992115,3cyclictest0-21swapper/320:20:163
854275992115,3cyclictest0-21swapper/320:10:023
854275992115,3cyclictest0-21swapper/319:10:153
854275992114,4cyclictest900522-21missed_timers21:20:193
854275992114,4cyclictest391ktimers/322:25:233
85426799218,9cyclictest311ktimers/220:05:122
854262992112,3cyclictest24-21ksoftirqd/119:40:181
854267992015,3cyclictest0-21swapper/219:25:192
854267992015,3cyclictest0-21swapper/219:25:192
854267992014,4cyclictest311ktimers/222:05:122
854275991913,3cyclictest391ktimers/323:35:133
85426799199,7cyclictest881516-21wc20:25:202
854275991811,4cyclictest862023-21fschecks_count19:30:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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