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2026-01-06 - 22:56
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 Tue Jan 06, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
3466412999381,9cyclictest3522054-21apt-get10:00:010
3466412999182,5cyclictest3495580-21kworker/u8:0+events_unbound09:20:000
3466414999076,5cyclictest3553282-21kworker/u8:2+events_unbound11:40:181
3466414999076,5cyclictest3553282-21kworker/u8:2+events_unbound11:40:181
3466412999082,6cyclictest3545492-21kworker/u8:1+flush-179:011:40:000
3466414998883,4cyclictest3539823-21kworker/u8:3+flush-179:011:10:241
3466412998879,6cyclictest3569212-21kworker/u8:1+flush-179:012:25:240
3466414998781,5cyclictest3545492-21kworker/u8:1+events_unbound11:35:031
3466414998479,4cyclictest3545492-21kworker/u8:1+flush-179:011:20:241
3466412998474,7cyclictest3471135-21kworker/u8:3+flush-179:007:35:210
3466414998378,4cyclictest3502377-21kworker/u8:1+events_unbound09:00:231
3466412998373,6cyclictest3565779-21latency_hist12:15:010
3466414998278,3cyclictest3483830-21kworker/u8:2+events_unbound08:20:241
3466412998075,3cyclictest3545492-21kworker/u8:1+flush-179:012:05:220
3466414997872,4cyclictest3512446-21kworker/u8:0+events_unbound09:50:031
3466412997769,6cyclictest3564175-21kworker/u8:0+flush-179:012:20:000
3466412997769,5cyclictest3553282-21kworker/u8:2+flush-179:012:00:240
3466414997672,3cyclictest3564175-21kworker/u8:0+events_unbound12:35:251
3466412997670,4cyclictest3545492-21kworker/u8:1+events_unbound11:30:240
3466412997670,4cyclictest3520458-21kworker/u8:3+flush-179:010:00:250
3466414997569,4cyclictest3533400-21kworker/u8:1+events_unbound10:45:001
3466414997470,3cyclictest3525443-21kworker/u8:1+events_unbound10:15:251
3466414997469,4cyclictest3471135-21kworker/u8:3+flush-179:007:45:001
3466414997369,3cyclictest3460214-21kworker/u8:0+events_unbound07:15:241
3466412997364,4cyclictest3512446-21kworker/u8:0+flush-179:010:45:230
3466412997259,4cyclictest3539823-21kworker/u8:3+flush-179:011:00:000
3466414997167,3cyclictest3483830-21kworker/u8:2+flush-179:008:40:231
3466414997166,4cyclictest3460214-21kworker/u8:0+flush-179:007:10:161
3466414997165,4cyclictest3512446-21kworker/u8:0+flush-179:010:45:151
3466412997165,4cyclictest3545492-21kworker/u8:1+flush-179:011:25:230
3466412997164,4cyclictest3565760-21kworker/u8:2+events_unbound12:20:240
3466412997161,7cyclictest3531833-21latency_hist10:30:000
3466414997066,3cyclictest3497414-21kworker/u8:1+events_unbound08:45:231
3466414997065,3cyclictest3495580-21kworker/u8:0+events_unbound09:15:141
3466412997064,4cyclictest3463329-21kworker/u8:2+flush-179:007:25:220
3466412997059,8cyclictest3502389-21apt-get09:00:000
3466414996965,3cyclictest3463329-21kworker/u8:2+flush-179:007:25:241
3466414996964,4cyclictest3512446-21kworker/u8:0+events_unbound11:00:241
3466412996957,9cyclictest3485446-21apt-get08:10:000
3466414996864,3cyclictest3471135-21kworker/u8:3+events_unbound07:45:231
3466414996859,6cyclictest3535019-21latency_hist10:40:011
3466412996862,4cyclictest3533469-21kworker/u8:2+flush-179:010:50:220
3466412996862,4cyclictest3533469-21kworker/u8:2+flush-179:010:50:220
3466414996760,5cyclictest3565760-21kworker/u8:2+events_unbound12:15:131
346641799660,64cyclictest0-21swapper/209:27:002
3466414996661,4cyclictest3512446-21kworker/u8:0+events_unbound10:10:241
3466412996658,5cyclictest3510655-21kworker/u8:2+flush-179:009:40:250
3466414996560,4cyclictest3510655-21kworker/u8:2+flush-179:009:25:191
3466412996558,5cyclictest3483830-21kworker/u8:2+flush-179:008:40:260
3466414996460,3cyclictest3507407-21kworker/u8:1+events_unbound09:20:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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