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2026-09-24 - 18:55

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 100 highest latencies:
System rackbslot5s.osadl.org (updated Thu Sep 24, 2026 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4001639995242,6cyclictest4060569-21unixbench_singl09:55:283
4001636994840,5cyclictest1-21systemd07:50:152
4001632994535,7cyclictest4038170-21cron08:55:011
4001639994432,9cyclictest391ktimers/309:20:133
4001636994436,5cyclictest4026031-21munin-plugin-st08:20:012
4001636994335,4cyclictest0-21swapper/212:00:012
4001636994333,6cyclictest204-21dbus-daemon07:25:032
4001632994336,4cyclictest4053947-21cron09:40:001
4001627994333,7cyclictest4019207-21grep08:00:000
4001636994235,4cyclictest4003362-21munin-plugin-st07:15:012
4001632994235,4cyclictest4057380-21munin-plugin-st09:50:001
4001636994132,6cyclictest4053955-21sh09:40:002
4001632994131,6cyclictest0-21swapper/112:40:001
4001632994127,10cyclictest231ktimers/110:25:121
4001636994032,4cyclictest53-21kcompactd009:55:282
4001627994032,4cyclictest0-21swapper/010:45:000
4001636993930,5cyclictest4001622-21cyclictest12:06:012
4001636993929,6cyclictest4062288-21grep10:00:252
4001632993932,4cyclictest4003421-21latency07:15:011
4001627993931,4cyclictest0-21swapper/009:40:010
4001636993831,4cyclictest4045017-21munin-plugin-st09:15:002
4001636993830,4cyclictest4033094-21idleruntime-cro08:40:012
4001632993829,6cyclictest0-21swapper/107:25:011
4001627993828,8cyclictest121ktimers/010:50:190
4001632993725,8cyclictest4114076-21grep12:30:291
4001627993729,4cyclictest4001622-21cyclictest10:05:250
4001627993729,4cyclictest0-21swapper/011:55:000
4001627993725,8cyclictest4088693-21cron11:20:010
4001639993627,5cyclictest0-21swapper/308:25:003
4001636993628,4cyclictest0-21swapper/210:05:162
4001632993629,4cyclictest4081881-21latency_hist11:00:001
4001632993628,4cyclictest0-21swapper/109:15:001
4001627993626,6cyclictest4097047-21grep11:40:240
4001639993525,7cyclictest391ktimers/312:15:103
4001636993527,4cyclictest0-21swapper/211:50:252
4001636993527,4cyclictest0-21swapper/211:45:132
4001636993526,5cyclictest0-21swapper/212:30:012
4001636993524,6cyclictest4034362-21grep08:40:242
4001632993525,6cyclictest0-21swapper/108:55:261
4001632993523,7cyclictest0-21swapper/109:30:251
4001627993528,4cyclictest4044558-21unixbench_multi09:10:230
4001627993528,4cyclictest0-21swapper/010:45:150
4001627993526,5cyclictest0-21swapper/009:35:020
4001627993526,4cyclictest0-21swapper/008:25:250
4001636993428,4cyclictest4001622-21cyclictest09:20:022
4001636993426,4cyclictest0-21swapper/210:35:242
4001632993426,4cyclictest0-21swapper/111:20:001
4001632993425,6cyclictest0-21swapper/112:25:001
4001632993425,4cyclictest0-21swapper/108:30:161
4001632993423,7cyclictest0-21swapper/112:25:231
4001632993418,9cyclictest40057902date07:20:021
4001627993423,6cyclictest0-21swapper/012:05:000
4001627993415,15cyclictest0-21swapper/008:25:010
4001639993325,4cyclictest4068028-21cron10:20:003
4001636993325,4cyclictest0-21swapper/212:00:162
4001636993325,4cyclictest0-21swapper/211:20:232
4001636993323,7cyclictest311ktimers/211:30:302
4001636993322,8cyclictest311ktimers/211:00:162
4001636993322,5cyclictest0-21swapper/211:40:002
4001632993324,5cyclictest4075079-21sendmail10:40:011
4001632993324,4cyclictest0-21swapper/111:30:001
4001632993323,6cyclictest0-21swapper/109:40:251
4001632993323,6cyclictest0-21swapper/109:15:241
4001627993325,4cyclictest0-21swapper/010:20:000
4001627993317,13cyclictest11-21ksoftirqd/010:35:110
4001636993225,4cyclictest0-21swapper/210:50:302
4001636993224,4cyclictest0-21swapper/209:35:002
4001636993224,4cyclictest0-21swapper/207:35:252
4001636993222,5cyclictest0-21swapper/212:25:002
4001636993221,7cyclictest4075464-21grep10:40:152
4001632993225,4cyclictest0-21swapper/107:50:251
4001632993222,6cyclictest0-21swapper/110:35:001
4001632993220,7cyclictest0-21swapper/112:00:001
4001627993225,4cyclictest4085307-21idleruntime-cro11:10:000
4001627993215,14cyclictest11-21ksoftirqd/007:35:130
4001639993124,4cyclictest0-21swapper/312:30:193
4001639993121,6cyclictest0-21swapper/308:35:243
4001639993120,8cyclictest438-21cron07:50:003
4001636993122,6cyclictest0-21swapper/210:15:012
4001632993123,5cyclictest4003190-21kworker/u8:2+events_unbound07:35:111
4001632993122,5cyclictest0-21swapper/108:30:011
4001627993121,6cyclictest0-21swapper/010:25:240
4001627993110,3cyclictest4007294-21awk07:25:010
4001639993022,4cyclictest0-21swapper/307:30:243
4001639993021,6cyclictest4015686-21kworker/u8:0+events_unbound07:50:163
4001639993021,4cyclictest0-21swapper/307:20:253
4001636993024,3cyclictest0-21swapper/207:45:162
4001636993023,4cyclictest0-21swapper/212:10:302
4001632993022,4cyclictest0-21swapper/109:55:021
4001632993022,4cyclictest0-21swapper/109:55:021
4001632993021,6cyclictest0-21swapper/108:50:001
4001632993020,6cyclictest0-21swapper/107:45:151
4001632993017,10cyclictest231ktimers/107:25:131
4001632993010,3cyclictest4024697-21grep08:15:151
4001627993023,3cyclictest0-21swapper/008:45:210
4001627993021,5cyclictest0-21swapper/009:00:000
4001627993020,7cyclictest4062269-21unixbench_singl10:00:250
4001639992922,4cyclictest4043296-21cron09:10:013
4001639992921,4cyclictest0-21swapper/311:35:253
4001639992920,5cyclictest0-21swapper/308:05:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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