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2025-12-26 - 01:16
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #b, slot #1

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
Characteristics of the 50 highest latencies:
System rackbslot1.osadl.org (updated Thu Dec 25, 2025 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
35249382197173,14sleep00-21swapper/007:08:440
35249992195171,14sleep10-21swapper/107:09:281
35249352194171,13sleep20-21swapper/207:08:412
35248832193169,14sleep30-21swapper/307:08:023
3525269996539,25cyclictest3826258-21kworker/u8:3+flush-179:012:15:342
3525271996459,4cyclictest3687124-21kworker/u8:2+flush-179:010:00:353
3525271996459,3cyclictest3641139-21kworker/u8:4+events_unbound09:25:123
3525271996360,2cyclictest3483832-21kworker/u8:4+events_unbound07:20:343
3525269996360,2cyclictest3530278-21kworker/u8:0+flush-179:007:20:292
3525269996359,3cyclictest3629846-21kworker/u8:0+flush-179:009:05:332
3525269996358,4cyclictest3733376-21kworker/u8:1+flush-179:010:35:092
3525261996056,3cyclictest3743558-21kworker/u8:0+events_unbound10:40:270
3525261996054,2cyclictest3702746-21kworker/u8:4+flush-179:010:20:290
3525269995955,3cyclictest3743558-21kworker/u8:0+flush-179:010:55:302
3525269995952,3cyclictest3530278-21kworker/u8:0+flush-179:008:35:162
3525261995955,3cyclictest3641139-21kworker/u8:4+flush-179:009:05:250
3525261995853,4cyclictest3676669-21kworker/u8:0+flush-179:009:39:330
3525269995653,2cyclictest3702746-21kworker/u8:4+flush-179:010:15:142
3525269995651,4cyclictest3634959-21kworker/u8:1+flush-179:009:00:002
3525261995651,3cyclictest3483832-21kworker/u8:4+events_unbound07:35:190
3525271995551,3cyclictest3712894-21kworker/u8:2+flush-179:010:55:003
3525271995551,3cyclictest3692639-21kworker/u8:3+flush-179:010:10:203
3525271995550,4cyclictest3677139-21cp09:35:023
3525269995549,4cyclictest3785761-21/usr/share/muni11:20:162
3525261995552,2cyclictest3541850-21kworker/u8:2+events_unbound08:25:110
3525261995551,3cyclictest3712894-21kworker/u8:2+flush-179:010:50:100
3525261995551,3cyclictest3641139-21kworker/u8:4+flush-179:009:20:320
3525271995451,2cyclictest3712894-21kworker/u8:2+flush-179:010:25:263
3525271995450,3cyclictest3530278-21kworker/u8:0+flush-179:008:05:103
3525271995450,2cyclictest3655696-21kworker/u8:1+events_unbound10:05:143
3525269995450,3cyclictest3712894-21kworker/u8:2+events_unbound10:50:262
3525264995449,4cyclictest3784686-31munin-html11:15:351
3525264995448,5cyclictest3810852-21kworker/u8:0+flush-179:011:45:131
3525271995350,3cyclictest3647736-21kworker/u8:2+events_unbound09:15:293
3525271995350,2cyclictest3641139-21kworker/u8:4+flush-179:009:00:323
3525271995346,2cyclictest3541850-21kworker/u8:2+flush-179:007:35:253
3525271995344,4cyclictest3541850-21kworker/u8:2+events_unbound08:12:143
3525269995350,2cyclictest3647736-21kworker/u8:2+flush-179:009:15:442
3525269995347,2cyclictest3816223-21kworker/u8:2+flush-179:012:30:002
3525261995349,3cyclictest3805915-21latency_hist11:40:010
3525261995348,3cyclictest3702746-21kworker/u8:4+events_unbound11:11:140
3525261995348,3cyclictest3702746-21kworker/u8:4+events_unbound11:11:140
3525271995249,2cyclictest3810852-21kworker/u8:0+flush-179:011:50:203
3525271995247,3cyclictest3826258-21kworker/u8:3+events_unbound12:14:063
3525269995249,2cyclictest3810852-21kworker/u8:0+flush-179:011:50:162
3525269995245,5cyclictest76405-21systemd-journal11:30:012
3525264995246,5cyclictest3851435-31munin-html12:20:361
3525261995249,2cyclictest3483832-21kworker/u8:4+events_unbound07:25:140
3525269995137,13cyclictest3773438-21kworker/2:2+pm11:32:242
3525261995148,2cyclictest3524980-21kworker/u8:1+events_unbound07:10:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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