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2026-06-05 - 08:58
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #e, slot #6

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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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.
Unexpectedly long latencies may be caused by SMIs
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 50 highest latencies:
System rackeslot6.osadl.org (updated Fri Jun 05, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
355383099143126,15cyclictest3647273-40mandb00:00:010
355383099127120,5cyclictest3619853-21latency_hist22:35:010
355383099117110,5cyclictest3642449-21kworker/u8:1+flush-179:000:05:000
35538319910999,7cyclictest3592269-21latency_hist21:10:011
355383099109102,5cyclictest3624871-21kworker/u8:2+events_unbound22:50:010
355383099107101,5cyclictest3599631-21kworker/u8:1+events_unbound21:55:000
355383099107101,5cyclictest3599631-21kworker/u8:1+events_unbound21:54:590
35538319910692,11cyclictest1213033-21systemd-journal23:40:011
35538309910295,5cyclictest3602074-21kworker/u8:2+flush-179:022:00:000
35538309910293,7cyclictest3642449-21kworker/u8:1+events_unbound00:25:010
35538309910194,5cyclictest3575151-21kworker/u8:1+events_unbound20:45:230
3553830999991,6cyclictest3587722-21kworker/u8:0+events_unbound21:00:140
3553830999889,7cyclictest3590718-21kworker/u8:3+flush-179:021:15:150
3553830999690,4cyclictest3558015-21kworker/u8:1+events_unbound19:40:250
3553830999686,7cyclictest3640840-21kworker/u8:2+events_unbound23:45:140
3553830999589,5cyclictest3642449-21kworker/u8:1+events_unbound23:50:260
3553830999589,5cyclictest3634747-21kworker/u8:0+events_unbound23:35:250
3553830999587,5cyclictest3642449-21kworker/u8:1+flush-179:000:15:210
3553830999488,5cyclictest3561796-21kworker/u8:3+events_unbound19:50:010
3553830999488,4cyclictest3558015-21kworker/u8:1+events_unbound19:25:160
3553830999387,5cyclictest3621765-21kworker/u8:1+flush-179:022:55:010
3553830999284,5cyclictest3621765-21kworker/u8:1+events_unbound23:10:210
3553830999184,4cyclictest3634747-21kworker/u8:0+events_unbound23:35:000
3553830999183,5cyclictest3570384-21kworker/u8:2+events_unbound20:15:190
3553830999082,5cyclictest3621719-21latency_hist22:40:020
3553830999082,5cyclictest3621719-21latency_hist22:40:020
3553830999081,6cyclictest3590718-21kworker/u8:3+flush-179:021:35:200
3553830999081,5cyclictest3634747-21kworker/u8:0+events_unbound23:40:250
3553830998982,6cyclictest3658943-21kworker/u8:0+events_unbound00:40:000
3553831998780,5cyclictest3558015-21kworker/u8:1+events_unbound19:45:011
3553830998779,5cyclictest3642449-21kworker/u8:1+events_unbound00:05:220
3553830998777,8cyclictest3580840-21kworker/u8:3+events_unbound20:40:230
3553830998679,4cyclictest3644042-21kworker/u8:0+events_unbound00:10:230
3553831998579,4cyclictest3642449-21kworker/u8:1+flush-179:000:10:011
3553831998574,9cyclictest3621976-21apt-get22:40:111
3553830998579,4cyclictest3602074-21kworker/u8:2+flush-179:022:05:240
3553831998474,7cyclictest3614277-21kworker/u8:1+flush-179:022:20:001
3553830998477,5cyclictest3575151-21kworker/u8:1+events_unbound20:35:240
3553830998476,6cyclictest3568153-21kworker/u8:1+events_unbound19:55:150
3553830998373,7cyclictest3587722-21kworker/u8:0+flush-179:021:05:150
3553830998373,7cyclictest3577686-21latency_hist20:25:020
3553831998276,4cyclictest3592524-21apt-get21:10:111
3553831998272,7cyclictest1213033-21systemd-journal22:05:001
3553830998274,6cyclictest3642449-21kworker/u8:1+flush-179:000:30:240
3553831998171,8cyclictest3580840-21kworker/u8:3+flush-179:020:50:011
3553830998072,5cyclictest3621765-21kworker/u8:1+events_unbound23:05:160
3553831997974,4cyclictest3577127-21kworker/u8:0+flush-179:020:30:241
3553831997974,4cyclictest3577127-21kworker/u8:0+flush-179:020:30:231
3553830997971,6cyclictest3553803-21kworker/u8:2+flush-179:019:15:240
3553830997964,11cyclictest1213033-21systemd-journal21:35:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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