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2026-07-28 - 11:02

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 Tue Jul 28, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3440781995335,6cyclictest3515606-21kworker/u8:2+events_unbound23:07:362
3440772995039,7cyclictest3534636-21grep23:35:270
3440776994838,6cyclictest3446170-21grep19:20:251
3440776994534,8cyclictest231ktimers/121:05:151
3440776994534,8cyclictest231ktimers/121:05:151
3440781994438,4cyclictest3446328-21kworker/u8:0+events_unbound19:27:052
3440781994320,9cyclictest35352662cat23:40:012
3440776994334,5cyclictest3517855-21munin-plugin-st22:50:001
3440781994234,4cyclictest0-21swapper/219:15:022
3440781994133,5cyclictest3526379-21grep23:15:012
3440781994133,4cyclictest0-21swapper/222:50:002
3440781994128,8cyclictest3452986-21grep19:40:272
3440776994129,9cyclictest231ktimers/119:50:131
3440776994031,5cyclictest3496965-21ls21:50:001
3440776994029,7cyclictest208-21systemd-logind00:38:491
3440776994026,10cyclictest231ktimers/123:45:131
3440776994026,10cyclictest231ktimers/123:45:121
3440772994029,8cyclictest3442516-21munin-node19:15:010
344078199395,4cyclictest131rcu_preempt00:20:122
3440781993932,4cyclictest0-21swapper/221:35:012
3440781993928,7cyclictest0-21swapper/200:20:002
3440776993926,9cyclictest3521264-21sendmail23:00:011
3440772993932,5cyclictest3529714-21kworker/u8:2+events_unbound23:27:390
3440785993829,4cyclictest0-21swapper/322:27:313
3440785993828,6cyclictest0-21swapper/322:10:013
3440776993830,4cyclictest0-21swapper/122:30:171
3440776993826,8cyclictest3510358-21grep22:25:271
3440772993830,4cyclictest3505693-21kthreadd22:15:010
3440772993829,5cyclictest0-21swapper/022:40:000
3440772993824,10cyclictest121ktimers/022:45:130
3440785993728,4cyclictest0-21swapper/319:50:013
3440772993728,6cyclictest0-21swapper/000:05:010
3440772993726,6cyclictest0-21swapper/022:30:270
3440785993628,4cyclictest0-21swapper/323:00:013
3440781993629,4cyclictest3531714-21idleruntime-cro23:30:002
3440781993627,5cyclictest3507392-21sh22:20:012
3440781993626,7cyclictest3444916-21sh19:20:002
3440781993626,7cyclictest3444916-21sh19:20:002
3440781993625,6cyclictest0-21swapper/222:40:262
344078199361,4cyclictest131rcu_preempt20:00:142
3440776993629,4cyclictest0-21swapper/121:35:011
3440776993627,6cyclictest3478137-21fschecks_count20:55:171
3440776993627,5cyclictest0-21swapper/119:30:171
3440772993631,3cyclictest151rcuc/020:15:120
3440781993526,5cyclictest1-21systemd00:38:552
3440776993526,6cyclictest3498204-21unixbench_multi21:50:251
3440772993529,4cyclictest3453323-21kworker/u8:2+events_unbound19:52:070
3440785993427,4cyclictest0-21swapper/320:55:273
3440785993416,16cyclictest3440766-21cyclictest00:25:123
3440781993427,3cyclictest0-21swapper/221:40:152
3440781993426,4cyclictest0-21swapper/223:15:252
3440781993424,6cyclictest0-21swapper/221:25:282
3440781993416,5cyclictest3456795-21kworker/u8:1+events_unbound20:13:172
3440781993416,5cyclictest3456795-21kworker/u8:1+events_unbound20:13:162
3440776993427,4cyclictest3440766-21cyclictest22:05:001
3440776993427,4cyclictest0-21swapper/120:20:001
3440776993423,8cyclictest438-21cron20:00:001
3440772993426,4cyclictest0-21swapper/021:15:260
344077299341,10cyclictest3458565-21cron20:00:010
344077299340,5cyclictest131rcu_preempt19:15:440
344077299340,5cyclictest131rcu_preempt19:15:430
3440785993325,4cyclictest0-21swapper/320:45:273
3440785993323,6cyclictest3447064-21fschecks_time19:25:163
3440785993323,6cyclictest0-21swapper/323:25:273
3440776993323,6cyclictest0-21swapper/122:17:311
3440772993327,4cyclictest3524483-21kworker/u8:0+events_unbound23:12:360
3440772993326,4cyclictest3451764-21sendmail19:40:000
3440785993223,4cyclictest0-21swapper/321:00:293
3440785993222,6cyclictest3538530-21ls23:50:003
3440785993222,6cyclictest3538530-21ls23:50:003
3440785993220,8cyclictest3451761-21ls19:40:013
3440781993226,3cyclictest0-21swapper/220:40:002
3440781993221,7cyclictest3541925-21sh00:00:002
3440781993221,7cyclictest3493075-21grep21:35:262
344078199321,4cyclictest131rcu_preempt19:30:132
3440776993223,6cyclictest0-21swapper/119:15:011
3440776993221,7cyclictest0-21swapper/123:20:001
3440772993216,6cyclictest3446328-21kworker/u8:0+events_unbound19:25:200
3440785993124,3cyclictest0-21swapper/319:20:013
3440785993124,3cyclictest0-21swapper/319:20:013
3440785993123,4cyclictest0-21swapper/323:05:253
3440785993121,6cyclictest0-21swapper/320:10:003
344078199314,4cyclictest131rcu_preempt19:20:112
3440781993124,5cyclictest3479406-21kworker/u8:0+events_unbound21:02:232
3440781993124,4cyclictest0-21swapper/219:50:162
3440781993121,8cyclictest311ktimers/223:50:132
3440781993121,6cyclictest0-21swapper/200:05:262
3440781993119,8cyclictest311ktimers/221:50:122
344077699316,4cyclictest131rcu_preempt20:05:121
3440776993124,4cyclictest0-21swapper/123:10:171
3440776993123,4cyclictest0-21swapper/119:45:171
3440776993122,6cyclictest3500367-21munin-plugin-st22:00:001
3440776993122,6cyclictest0-21swapper/100:10:251
3440776993120,7cyclictest0-21swapper/121:40:001
3440772993123,5cyclictest3502093-21munin-plugin-st22:05:000
3440772993120,6cyclictest0-21swapper/021:40:250
344077299311,7cyclictest3524660-21cron23:10:000
3440785993023,4cyclictest3514219-21cron22:40:003
3440785993022,4cyclictest0-21swapper/322:10:253
3440785993021,4cyclictest0-21swapper/321:45:143
3440781993021,6cyclictest0-21swapper/223:00:272
3440781993018,7cyclictest0-21swapper/220:05:262
3440781993012,6cyclictest3468844-21kworker/u8:0+events_unbound20:32:492
3440776993022,4cyclictest0-21swapper/123:40:001
3440776993020,6cyclictest0-21swapper/120:00:281
3440776993019,7cyclictest0-21swapper/121:15:011
3440776993019,7cyclictest0-21swapper/120:50:271
344077299307,20cyclictest121ktimers/019:20:140
3440772993022,4cyclictest0-21swapper/020:10:010
3440772993021,6cyclictest0-21swapper/020:45:010
3440772993020,7cyclictest3515486-21grep22:40:250
344077299301,5cyclictest131rcu_preempt00:05:140
3440785992921,4cyclictest0-21swapper/323:15:163
3440785992921,4cyclictest0-21swapper/320:20:263
3440781992921,4cyclictest0-21swapper/220:20:262
3440781992920,6cyclictest3533401-21sh23:35:002
344078199291,4cyclictest131rcu_preempt19:45:122
3440776992921,4cyclictest0-21swapper/120:25:271
3440776992920,6cyclictest0-21swapper/100:10:011
3440776992918,7cyclictest0-21swapper/121:25:281
3440772992923,4cyclictest3552035-21kworker/u8:1+events_unbound00:32:450
3440772992923,4cyclictest0-21swapper/023:40:130
3440772992922,5cyclictest3498312-21kworker/u8:0+events_unbound21:52:300
3440785992821,3cyclictest0-21swapper/320:40:013
3440785992820,5cyclictest3545054-21kworker/u8:0+events_unbound00:38:553
3440785992820,4cyclictest0-21swapper/300:15:243
3440781992821,5cyclictest3515606-21kworker/u8:2+events_unbound22:57:082
3440781992821,4cyclictest0-21swapper/223:47:392
3440781992821,4cyclictest0-21swapper/223:47:392
3440781992821,3cyclictest3550846-21fschecks_count00:25:162
3440781992821,3cyclictest0-21swapper/220:50:272
3440781992819,6cyclictest3530034-21sort23:25:012
3440781992818,6cyclictest0-21swapper/222:10:252
3440776992821,4cyclictest0-21swapper/120:10:271
3440776992821,4cyclictest0-21swapper/120:10:271
3440776992820,6cyclictest3533417-21cut23:35:001
3440776992820,4cyclictest0-21swapper/120:45:261
3440776992818,6cyclictest0-21swapper/123:05:251
3440772992824,2cyclictest13550irq/42-30be0000.ethernet20:00:180
3440772992821,4cyclictest0-21swapper/022:05:270
3440772992820,5cyclictest3487148-21tune2fs21:20:160
3440772992820,5cyclictest3466988-21kworker/u8:2+events_unbound21:00:010
3440785992719,6cyclictest3549565-21ntp_offset00:20:223
3440785992719,4cyclictest3460282-21cron20:05:013
3440785992719,4cyclictest0-21swapper/322:15:273
3440785992719,4cyclictest0-21swapper/320:10:273
3440785992719,4cyclictest0-21swapper/320:10:273
3440785992719,3cyclictest0-21swapper/321:50:243
3440785992718,6cyclictest3484972-21sed21:15:013
3440785992718,4cyclictest0-21swapper/323:15:013
3440785992715,8cyclictest3500387-21basename22:00:003
3440781992719,4cyclictest0-21swapper/221:05:182
3440781992719,4cyclictest0-21swapper/221:05:172
3440781992719,3cyclictest0-21swapper/221:00:012
3440781992715,7cyclictest3519081-21grep22:50:242
3440781992715,7cyclictest3500370-21cut22:00:002
344078199271,13cyclictest0-21swapper/223:41:092
3440776992719,5cyclictest0-21swapper/121:00:241
3440776992716,7cyclictest0-21swapper/100:20:261
3440772992719,5cyclictest3481361-21kworker/u8:1+events_unbound21:05:290
3440772992719,5cyclictest3481361-21kworker/u8:1+events_unbound21:05:290
344077299271,4cyclictest131rcu_preempt20:35:130
3440772992713,10cyclictest121ktimers/000:25:130
3440772992710,14cyclictest3555113-21unixbench_multi00:35:260
3440785992619,4cyclictest0-21swapper/322:40:273
3440785992619,3cyclictest0-21swapper/323:20:253
3440785992619,3cyclictest0-21swapper/321:40:163
3440785992618,4cyclictest0-21swapper/321:30:263
3440785992617,5cyclictest0-21swapper/322:20:153
3440785992617,4cyclictest0-21swapper/322:00:253
3440785992617,4cyclictest0-21swapper/320:32:203
3440785992615,6cyclictest0-21swapper/321:20:013
344078199266,11cyclictest32-21ksoftirqd/222:05:272
344078199262,4cyclictest131rcu_preempt20:15:132
344078199261,13cyclictest0-21swapper/222:00:552
344078199260,8cyclictest3508368-21/usr/sbin/munin22:20:232
3440776992618,5cyclictest0-21swapper/120:40:011
3440776992617,6cyclictest0-21swapper/121:20:251
3440776992617,6cyclictest0-21swapper/121:15:171
3440772992620,4cyclictest3537176-21kworker/u8:0+events_unbound23:45:200
3440772992620,4cyclictest3537176-21kworker/u8:0+events_unbound23:45:200
3440772992617,6cyclictest3509112-21debian-sa122:25:010
3440772992617,5cyclictest0-21swapper/023:20:000
3440785992519,3cyclictest0-21swapper/320:50:163
3440785992517,4cyclictest0-21swapper/300:10:263
344078199253,11cyclictest32-21ksoftirqd/222:30:482
3440781992519,4cyclictest3496600-21kworker/u8:1+events_unbound21:49:182
3440781992518,5cyclictest3468844-21kworker/u8:0+events_unbound20:40:212
3440781992518,3cyclictest0-21swapper/200:05:012
3440781992516,4cyclictest0-21swapper/220:25:182
3440781992515,6cyclictest3451777-21basename19:40:012
344078199250,12cyclictest0-21swapper/222:35:202
3440776992518,5cyclictest3491537-21kworker/u8:2+events_unbound21:43:501
3440776992518,4cyclictest3451778-21sendmail19:40:011
3440776992518,4cyclictest0-21swapper/122:09:591
3440776992518,4cyclictest0-21swapper/100:00:001
344077299258,9cyclictest11-21ksoftirqd/022:50:240
344077299256,11cyclictest11-21ksoftirqd/000:20:210
3440772992519,4cyclictest3475956-21kworker/u8:0+events_unbound20:52:220
3440772992519,3cyclictest0-21swapper/021:45:240
3440772992519,3cyclictest0-21swapper/021:15:000
3440772992519,3cyclictest0-21swapper/000:20:010
3440772992518,3cyclictest0-21swapper/000:00:000
344077299251,4cyclictest3489247-21ntp_states21:25:240
3440772992513,8cyclictest204-21dbus-daemon20:27:180
3440772992513,7cyclictest0-21swapper/019:40:270
3440772992510,12cyclictest3476063-21latency_hist20:50:010
3440785992418,3cyclictest0-21swapper/319:55:163
3440785992418,3cyclictest0-21swapper/300:05:203
3440785992416,5cyclictest0-21swapper/319:40:273
3440785992416,4cyclictest0-21swapper/320:15:263
3440785992416,4cyclictest0-21swapper/319:20:253
3440785992414,7cyclictest0-21swapper/321:10:013
3440785992414,7cyclictest0-21swapper/321:10:013
3440781992416,6cyclictest3534944-21kworker/u8:1+events_unbound00:10:272
3440781992415,6cyclictest3510912-21date22:30:002
344078199241,18cyclictest3484803-21apt-get21:15:002
3440776992418,4cyclictest3466988-21kworker/u8:2+events_unbound20:32:211
3440776992418,3cyclictest3552180-21kthreadd00:30:001
344077699241,14cyclictest0-21swapper/119:15:441
344077699241,14cyclictest0-21swapper/119:15:441
3440776992411,10cyclictest231ktimers/120:40:131
344077299246,10cyclictest11-21ksoftirqd/022:25:210
3440772992418,4cyclictest0-21swapper/000:10:210
3440772992417,3cyclictest0-21swapper/021:03:470
3440772992417,3cyclictest0-21swapper/020:20:170
3440772992415,6cyclictest121ktimers/020:10:200
3440772992415,6cyclictest121ktimers/020:10:200
3440772992414,6cyclictest3493074-21grep21:35:260
344077299241,3cyclictest3520120-21irqstats22:55:200
3440772992413,8cyclictest3539724-21cat23:50:240
344077299241,19cyclictest0-21swapper/020:34:320
344077299241,19cyclictest0-21swapper/019:31:130
3440772992410,11cyclictest3490817-21meminfo21:30:190
344077299240,3cyclictest0-21swapper/019:45:150
3440785992317,3cyclictest3493536-21cron21:40:013
3440785992317,3cyclictest0-21swapper/322:50:163
3440785992317,3cyclictest0-21swapper/322:45:253
3440785992316,3cyclictest0-21swapper/300:00:293
3440785992314,6cyclictest0-21swapper/323:40:003
3440785992313,6cyclictest3442558-21munin-node19:15:013
3440785992313,4cyclictest0-21swapper/323:30:173
3440785992310,10cyclictest3440766-21cyclictest19:50:133
344078199232,11cyclictest32-21ksoftirqd/221:24:132
344078199231,5cyclictest2436024-21kworker/2:1+mm_percpu_wq21:15:052
3440776992316,5cyclictest145-21jbd2/mmcblk1p2-823:50:101
3440776992316,4cyclictest0-21swapper/123:40:261
3440776992315,5cyclictest0-21swapper/122:20:251
3440776992313,6cyclictest0-21swapper/120:25:001
3440772992316,5cyclictest3527917-21kworker/u8:1+events_unbound23:20:230
3440772992316,3cyclictest0-21swapper/023:32:570
3440772992310,6cyclictest11-21ksoftirqd/023:00:230
3440785992214,5cyclictest0-21swapper/319:30:263
3440781992216,3cyclictest0-21swapper/220:45:272
3440776992216,3cyclictest0-21swapper/122:45:011
3440776992213,6cyclictest0-21swapper/119:25:201
3440776992212,6cyclictest0-21swapper/119:40:271
344077299221,19cyclictest0-21swapper/021:58:080
3440785992115,3cyclictest0-21swapper/322:35:013
3440785992114,4cyclictest3487068-21cstates21:20:133
3440785992112,6cyclictest391ktimers/321:28:113
3440781992115,4cyclictest3552035-21kworker/u8:1+events_unbound00:30:412
3440776992115,3cyclictest0-21swapper/100:00:271
3440776992114,5cyclictest0-21swapper/100:15:151
3440785992014,3cyclictest0-21swapper/323:50:163
3440785992012,4cyclictest0-21swapper/320:40:253
344077699208,7cyclictest0-21swapper/122:10:241
3440776992014,3cyclictest0-21swapper/122:50:221
3440776992012,5cyclictest0-21swapper/123:25:181
3440776992011,6cyclictest0-21swapper/123:00:201
3440785991910,7cyclictest3552409-21apt-get00:30:133
344077699199,7cyclictest3552568-21grep00:30:161
3440776991912,5cyclictest231ktimers/123:20:121
3440785991812,3cyclictest0-21swapper/323:56:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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