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2025-12-06 - 23:39
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 Sat Dec 06, 2025 12:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
3223039999590,3cyclictest3319173-21kworker/u8:2+flush-179:012:05:261
3223036999082,6cyclictest3235965-21kworker/u8:3+flush-179:008:00:010
3223039998882,4cyclictest3277603-21kworker/u8:0+flush-179:010:30:261
3223039998675,8cyclictest3290797-21/usr/sbin/munin10:40:261
3223036998682,3cyclictest3272250-21kworker/u8:0+events_unbound09:40:250
3223039998575,7cyclictest3289189-21/usr/sbin/munin10:35:241
3223039998373,7cyclictest3242294-21latency_hist08:10:011
3223039998169,9cyclictest3293736-21apt-get10:50:001
3223036998075,4cyclictest3313322-21kworker/u8:1+events_unbound11:50:250
3223036998075,4cyclictest3290522-21kworker/u8:1+events_unbound11:05:250
3223039997969,7cyclictest3258199-21latency_hist09:00:001
3223036997974,4cyclictest3300647-21kworker/u8:2+events_unbound11:15:240
3223036997974,4cyclictest3272785-21kworker/u8:2+events_unbound09:55:250
3223036997969,7cyclictest3253440-21latency_hist08:45:010
3223039997871,5cyclictest3282564-21kworker/u8:3+flush-179:010:20:001
3223036997873,4cyclictest3277603-21kworker/u8:0+events_unbound10:15:230
3223036997773,3cyclictest3277603-21kworker/u8:0+events_unbound10:10:250
3223036997764,9cyclictest3216887-21kworker/u8:3+flush-179:007:15:010
3223036997665,8cyclictest3297402-21cat11:00:010
3223039997566,7cyclictest3324488-21latency_hist12:25:011
3223036997470,3cyclictest3272785-21kworker/u8:2+events_unbound10:00:240
3223039997366,5cyclictest3272785-21kworker/u8:2+flush-179:009:50:231
3223036997369,3cyclictest3226067-21kworker/u8:1+events_unbound07:20:240
3223036997368,4cyclictest3232808-21kworker/u8:1+events_unbound08:10:140
3223039997263,6cyclictest3230849-21kworker/u8:0+flush-179:007:50:011
3223036997166,4cyclictest3247111-21kworker/u8:3+events_unbound08:45:230
3223039997058,8cyclictest3297160-21apt-get11:00:001
3223036997062,6cyclictest3326309-21/usr/sbin/munin12:30:260
3223036997061,6cyclictest3319944-21/usr/sbin/munin12:10:220
3223047996862,4cyclictest3258212-21turbostat09:00:003
3223039996855,10cyclictest3270945-21apt-get09:40:001
3223036996857,8cyclictest3262974-21latency_hist09:15:000
3223036996857,8cyclictest3262974-21latency_hist09:15:000
3223036996759,3cyclictest3313322-21kworker/u8:1+events_unbound12:05:180
3223039996660,4cyclictest3222893-21latency_hist07:10:021
3223039996657,5cyclictest3261423-21kworker/u8:3+flush-179:009:30:281
3223036996661,4cyclictest3300647-21kworker/u8:2+flush-179:011:30:270
3223036996661,4cyclictest3259781-21kworker/u8:1+events_unbound10:05:230
3223039996458,4cyclictest3322936-21kworker/u8:1+flush-179:012:30:001
3223039996458,4cyclictest3302453-21apt-get11:15:121
3223039996455,6cyclictest3322891-21latency_hist12:20:011
3223036996460,3cyclictest3322936-21kworker/u8:1+flush-179:012:20:240
3223036996459,4cyclictest3314910-21kworker/u8:0+events_unbound12:00:250
3223039996354,7cyclictest271-21systemd-journal07:55:001
3223036996353,4cyclictest3290522-21kworker/u8:1+events_unbound10:40:440
3223039996253,6cyclictest3242553-21kworker/u8:0+flush-179:008:50:261
3223036996258,3cyclictest3227734-21kworker/u8:2+flush-179:007:39:550
3223036996255,6cyclictest3277603-21kworker/u8:0+events_unbound10:30:230
3223036996254,3cyclictest3235965-21kworker/u8:3+events_unbound08:00:210
3223042996157,2cyclictest0-21swapper/212:29:582
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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