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2026-03-18 - 03:19

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 18, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
66708995443,7cyclictest111793-21sh21:20:000
66721994941,4cyclictest139515-21munin-plugin-st22:40:013
66708994841,4cyclictest169363-21munin-plugin-st00:05:000
66721994633,10cyclictest391ktimers/322:00:143
66716994430,9cyclictest97477-21grep20:35:262
66716994427,6cyclictest72253-21kworker/u8:2+events_unbound19:35:122
66713994333,7cyclictest104960-21sh21:00:021
66708994335,5cyclictest199-21systemd-network19:20:180
6671699420,10cyclictest0-21swapper/221:10:122
66721994134,4cyclictest111789-21cron21:20:003
66708994129,9cyclictest121ktimers/000:05:120
66721994030,6cyclictest148247-21cron23:05:003
66721994027,10cyclictest391ktimers/300:30:153
66713994030,5cyclictest0-21swapper/123:50:001
66708994025,11cyclictest121ktimers/022:40:120
66716993931,4cyclictest0-21swapper/223:10:162
66716993928,7cyclictest0-21swapper/222:30:002
66721993829,4cyclictest0-21swapper/321:35:013
66716993828,7cyclictest157187-21apt-key23:30:022
66708993829,5cyclictest0-21swapper/000:00:000
66721993727,6cyclictest0-21swapper/321:41:083
66716993730,4cyclictest144626-21kthreadd22:55:002
66716993730,4cyclictest144626-21kthreadd22:55:002
66716993725,9cyclictest165927-21sh23:55:002
66713993728,6cyclictest107921-21unixbench_multi21:05:251
66713993726,7cyclictest0-21swapper/120:05:261
66708993727,6cyclictest0-21swapper/022:10:010
66708993727,6cyclictest0-21swapper/021:10:010
66716993628,4cyclictest0-21swapper/221:55:142
66716993627,6cyclictest153585-21sendmail23:20:002
66713993628,4cyclictest0-21swapper/122:40:001
66713993611,13cyclictest131rcu_preempt22:05:131
66708993628,4cyclictest84316-21sendmail20:00:010
66708993628,4cyclictest0-21swapper/023:50:010
66721993528,4cyclictest80891-21munin-run19:50:013
66721993526,6cyclictest104965-21cron21:00:013
66716993527,4cyclictest0-21swapper/223:35:162
66716993525,6cyclictest0-21swapper/223:40:242
66716993525,6cyclictest0-21swapper/221:20:242
66713993520,12cyclictest231ktimers/121:30:131
66721993426,4cyclictest0-21swapper/319:20:003
66721993422,7cyclictest0-21swapper/320:15:173
66716993428,4cyclictest119006-21cut21:40:152
66716993426,4cyclictest0-21swapper/221:35:232
66713993423,6cyclictest0-21swapper/120:40:231
66713993422,7cyclictest0-21swapper/100:40:001
66708993425,6cyclictest0-21swapper/020:15:020
66721993324,5cyclictest0-21swapper/322:15:243
66721993324,4cyclictest0-21swapper/321:35:153
66721993323,6cyclictest0-21swapper/323:55:233
66721993321,7cyclictest149519-21grep23:05:243
66716993324,7cyclictest78896-21kworker/u8:1+events_unbound20:01:032
66716993322,8cyclictest172954-21latency_hist00:15:012
66716993321,9cyclictest88926-21grep20:10:252
66713993326,4cyclictest0-21swapper/120:20:151
66713993325,4cyclictest0-21swapper/100:15:001
66713993324,6cyclictest80420-21unixbench_multi19:45:241
66708993327,4cyclictest101268-21kworker/u8:1+events_unbound20:51:410
66708993325,5cyclictest0-21swapper/022:30:020
66708993324,6cyclictest0-21swapper/023:05:000
66708993324,4cyclictest0-21swapper/023:10:000
66708993323,6cyclictest0-21swapper/023:39:590
66708993323,6cyclictest0-21swapper/023:25:230
6671699329,4cyclictest1642622ls23:50:002
66716993224,6cyclictest130722-21kworker/u8:0+events_unbound22:36:142
66713993225,4cyclictest132469-21cron22:20:001
66713993224,4cyclictest0-21swapper/120:25:161
66713993224,4cyclictest0-21swapper/100:00:151
66713993223,5cyclictest0-21swapper/123:00:001
66713993222,7cyclictest0-21swapper/100:10:011
66713993221,7cyclictest0-21swapper/100:15:241
66713993221,7cyclictest0-21swapper/100:15:241
66708993220,8cyclictest144750-21apt-key22:55:010
66708993220,8cyclictest144750-21apt-key22:55:010
66721993124,5cyclictest130722-21kworker/u8:0+events_unbound22:26:143
66721993121,6cyclictest153129-21grep23:15:263
66721993119,8cyclictest0-21swapper/320:10:013
66716993124,4cyclictest0-21swapper/219:55:252
66716993123,4cyclictest0-21swapper/222:00:272
66716993122,6cyclictest0-21swapper/223:20:262
66716993120,8cyclictest169762-21tune2fs00:05:152
66716993120,7cyclictest0-21swapper/219:15:012
66716993110,5cyclictest78896-21kworker/u8:1+events_unbound19:50:152
66713993120,7cyclictest0-21swapper/123:00:271
66708993124,5cyclictest78896-21kworker/u8:1+events_unbound19:41:380
66708993124,5cyclictest78896-21kworker/u8:1+events_unbound19:41:370
66708993123,4cyclictest0-21swapper/020:00:250
66708993123,4cyclictest0-21swapper/019:25:250
66708993121,6cyclictest0-21swapper/000:30:280
66708993119,8cyclictest204-21dbus-daemon19:30:590
6670899311,3cyclictest0-21swapper/022:20:100
66721993023,5cyclictest160333-21kworker/u8:1+events_unbound23:41:253
66721993023,4cyclictest0-21swapper/322:10:263
66721993020,7cyclictest181915-21run-parts00:40:013
66716993021,6cyclictest99454-21unixbench_singl20:40:232
66716993018,8cyclictest130341-21grep22:10:272
66713993024,4cyclictest135901-21idleruntime-cro22:30:001
66713993023,4cyclictest0-21swapper/120:30:171
66713993023,3cyclictest0-21swapper/123:35:271
66713993019,7cyclictest0-21swapper/121:20:001
66713993019,6cyclictest0-21swapper/100:25:251
66713993018,7cyclictest0-21swapper/123:30:001
66708993024,3cyclictest13850irq/36-mmc122:20:000
66708993021,6cyclictest0-21swapper/021:40:250
66708993020,7cyclictest130333-21grep22:10:260
66721992923,3cyclictest0-21swapper/300:20:253
66721992920,6cyclictest0-21swapper/321:05:003
66716992923,4cyclictest89114-21kworker/u8:4+events_unbound20:16:032
66716992923,4cyclictest136324-21kworker/u8:2+events_unbound22:41:002
66716992922,5cyclictest97742-21kworker/u8:2+events_unbound21:17:432
66716992922,4cyclictest0-21swapper/220:30:252
66716992921,5cyclictest0-21swapper/219:20:242
66713992922,4cyclictest0-21swapper/119:15:261
66713992918,7cyclictest137321-21grep22:30:251
66713992918,7cyclictest0-21swapper/123:15:251
66713992918,7cyclictest0-21swapper/121:50:011
66713992918,7cyclictest0-21swapper/121:20:251
66713992911,5cyclictest131rcu_preempt21:50:111
66708992923,3cyclictest0-21swapper/021:30:000
66708992922,4cyclictest0-21swapper/021:00:170
66708992922,3cyclictest0-21swapper/000:40:010
66708992921,5cyclictest0-21swapper/023:40:240
66708992921,5cyclictest0-21swapper/020:45:020
66708992920,6cyclictest0-21swapper/020:30:000
66721992821,5cyclictest158524-21kworker/u8:2+events_unbound00:06:293
66721992820,5cyclictest146543-21munin-run23:00:013
66721992820,4cyclictest0-21swapper/320:50:153
66721992818,6cyclictest0-21swapper/323:30:003
66721992818,6cyclictest0-21swapper/320:00:013
66716992822,4cyclictest169164-21kworker/u8:1+events_unbound00:38:012
66716992821,4cyclictest0-21swapper/222:05:172
66716992821,4cyclictest0-21swapper/221:06:052
66716992820,5cyclictest311ktimers/220:45:112
66713992821,5cyclictest113188-21kworker/u8:1+events_unbound22:21:141
66713992821,4cyclictest77487-21sendmail19:40:011
66713992821,4cyclictest180006-21idleruntime-cro00:35:001
66713992821,3cyclictest0-21swapper/120:50:151
66713992820,5cyclictest0-21swapper/119:20:241
66713992818,6cyclictest0-21swapper/123:40:251
66713992817,7cyclictest0-21swapper/123:10:271
66708992821,5cyclictest0-21swapper/019:15:010
6670899280,25cyclictest0-21swapper/023:15:130
66721992721,4cyclictest158524-21kworker/u8:2+events_unbound00:16:323
66721992721,4cyclictest158524-21kworker/u8:2+events_unbound00:16:313
66716992720,5cyclictest114910-21kworker/u8:2+events_unbound21:28:242
66716992717,7cyclictest0-21swapper/219:40:252
66716992717,7cyclictest0-21swapper/219:40:252
66716992717,5cyclictest169345-21cron00:05:002
66713992719,6cyclictest150029-21latency_hist23:10:021
66708992721,4cyclictest62962-21kworker/u8:3+events_unbound20:05:080
66708992721,3cyclictest0-21swapper/023:35:000
66708992721,3cyclictest0-21swapper/000:15:010
66708992718,6cyclictest0-21swapper/020:20:010
66708992718,6cyclictest0-21swapper/000:29:590
66708992716,7cyclictest80551-21sshd19:46:030
66721992618,5cyclictest0-21swapper/321:10:243
66721992618,4cyclictest0-21swapper/319:20:253
66721992616,7cyclictest391ktimers/320:25:133
66716992620,4cyclictest178103-21http00:30:002
66716992619,5cyclictest78896-21kworker/u8:1+events_unbound20:20:162
66716992617,5cyclictest0-21swapper/223:30:162
66716992617,4cyclictest0-21swapper/221:00:012
66713992620,4cyclictest78716-21unixbench_multi19:40:261
66713992620,4cyclictest78716-21unixbench_multi19:40:251
66713992619,5cyclictest113188-21kworker/u8:1+events_unbound21:26:071
66713992619,4cyclictest0-21swapper/121:55:241
66713992619,3cyclictest0-21swapper/121:40:241
66713992618,5cyclictest91122-21sendmail20:20:011
66713992617,6cyclictest0-21swapper/122:40:251
66713992617,6cyclictest0-21swapper/120:05:021
6670899267,5cyclictest118774-21date21:40:010
66708992620,3cyclictest13850irq/36-mmc120:40:010
66708992618,5cyclictest0-21swapper/022:05:010
66708992618,5cyclictest0-21swapper/020:55:250
66721992519,3cyclictest0-21swapper/320:40:013
66721992518,5cyclictest0-21swapper/323:35:263
66721992517,5cyclictest0-21swapper/320:30:263
66721992516,6cyclictest122094-21apt-key21:50:013
66721992516,4cyclictest0-21swapper/319:25:593
66716992518,5cyclictest78896-21kworker/u8:1+events_unbound19:47:002
66716992518,5cyclictest3725008-21kworker/u8:0+events_unbound19:15:412
66716992518,5cyclictest130722-21kworker/u8:0+events_unbound22:30:232
66716992518,4cyclictest1494702sleep223:05:242
66716992517,6cyclictest169164-21kworker/u8:1+events_unbound00:20:142
66716992517,5cyclictest0-21swapper/220:05:242
66716992516,6cyclictest0-21swapper/221:50:252
66713992516,5cyclictest0-21swapper/122:55:001
66713992516,5cyclictest0-21swapper/122:55:001
6670899253,4cyclictest131rcu_preempt22:55:110
66708992518,5cyclictest0-21swapper/020:20:250
66721992418,3cyclictest0-21swapper/321:55:103
66721992418,3cyclictest0-21swapper/319:50:153
66721992418,3cyclictest0-21swapper/300:15:003
66721992417,3cyclictest0-21swapper/322:40:163
66721992416,5cyclictest72253-21kworker/u8:2+events_unbound19:41:333
66721992416,5cyclictest72253-21kworker/u8:2+events_unbound19:41:333
66721992415,6cyclictest0-21swapper/321:05:173
66721992414,7cyclictest92229-21wc20:20:243
6671699242,17cyclictest122047-21idleruntime-cro21:50:012
66716992418,4cyclictest158524-21kworker/u8:2+events_unbound00:16:072
66716992418,4cyclictest158524-21kworker/u8:2+events_unbound00:16:062
66716992418,3cyclictest0-21swapper/221:00:262
66716992417,5cyclictest130722-21kworker/u8:0+events_unbound22:18:432
66716992416,5cyclictest0-21swapper/222:55:242
66716992416,5cyclictest0-21swapper/222:50:012
66716992416,5cyclictest0-21swapper/222:50:002
66716992415,6cyclictest311ktimers/220:50:162
6671699241,12cyclictest0-21swapper/222:23:002
66713992417,4cyclictest0-21swapper/119:55:241
66713992416,5cyclictest231ktimers/119:30:101
66713992415,4cyclictest0-21swapper/123:31:221
66713992412,9cyclictest231ktimers/123:50:101
66708992418,4cyclictest82115-21unixbench_multi19:50:250
66708992418,4cyclictest0-21swapper/022:31:120
66708992418,3cyclictest0-21swapper/022:45:240
66708992418,3cyclictest0-21swapper/022:45:240
66708992417,4cyclictest158524-21kworker/u8:2+events_unbound23:50:210
66708992415,7cyclictest11-21ksoftirqd/021:45:210
66708992415,5cyclictest121ktimers/021:34:400
66708992414,7cyclictest154879-21grep23:20:260
66708992413,9cyclictest11-21ksoftirqd/021:50:570
6670899241,19cyclictest0-21swapper/019:17:390
66721992317,3cyclictest0-21swapper/321:25:233
66721992316,5cyclictest154370-21ntpq23:20:223
66721992316,3cyclictest0-21swapper/320:40:153
66721992316,3cyclictest0-21swapper/319:10:153
66721992315,5cyclictest0-21swapper/322:05:273
66721992314,6cyclictest0-21swapper/322:55:013
66721992314,6cyclictest0-21swapper/322:55:003
66716992316,4cyclictest0-21swapper/220:25:172
66716992315,4cyclictest166710-21ntpq23:55:202
66713992317,3cyclictest0-21swapper/121:40:001
66713992316,3cyclictest0-21swapper/120:46:041
6671399231,2cyclictest0-21swapper/119:54:271
66708992316,4cyclictest0-21swapper/021:20:150
66708992316,3cyclictest0-21swapper/021:13:460
66708992315,5cyclictest0-21swapper/019:35:240
66708992315,4cyclictest0-21swapper/020:30:260
66708992314,5cyclictest101562-21latency_hist20:50:000
6670899230,21cyclictest0-21swapper/022:35:120
6670899230,19cyclictest0-21swapper/023:10:580
66721992215,4cyclictest75757-21sh19:35:003
66721992215,4cyclictest391ktimers/323:10:123
66721992215,3cyclictest0-21swapper/323:35:003
66721992215,3cyclictest0-21swapper/300:29:593
66721992214,6cyclictest133596-21wc22:20:223
66721992213,7cyclictest164384-21sed23:50:023
66721992213,6cyclictest142945-21basename22:50:003
66721992213,6cyclictest142945-21basename22:50:003
6671699223,10cyclictest180002-21munin-run00:35:002
6671699222,15cyclictest74057-21cron19:30:002
66716992216,3cyclictest75943-21latency_hist19:35:022
66713992216,3cyclictest0-21swapper/120:35:211
66713992215,3cyclictest0-21swapper/123:21:211
6670899221,19cyclictest0-21swapper/000:24:200
66721992115,4cyclictest82465-21kworker/u8:0+events_unbound20:10:183
66721992115,3cyclictest0-21swapper/321:50:143
66721992114,4cyclictest76568-21ntpq19:35:213
66721992114,3cyclictest0-21swapper/323:50:243
6671699212,13cyclictest164-21systemd-journal21:31:062
66716992112,6cyclictest147671-21sort23:00:272
66713992115,3cyclictest0-21swapper/119:15:011
66713992113,5cyclictest0-21swapper/119:30:001
6671399211,17cyclictest231ktimers/122:10:251
66713992111,7cyclictest0-21swapper/123:55:231
66721992013,4cyclictest112738-21sendmail_mailst21:20:223
66721992012,5cyclictest0-21swapper/322:30:273
66721992010,7cyclictest85307-21awk20:00:243
6671399207,3cyclictest131rcu_preempt00:20:031
66713992013,4cyclictest231ktimers/121:00:241
66713992013,3cyclictest0-21swapper/122:45:151
66713992013,3cyclictest0-21swapper/122:45:141
6671399199,7cyclictest89300-21seq20:13:511
66713991913,3cyclictest0-21swapper/122:00:241
66721991810,5cyclictest0-21swapper/320:45:193
66713991810,5cyclictest0-21swapper/121:10:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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