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2025-12-27 - 18:42
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 27, 2025 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
496430999482,4cyclictest552969-21kworker/u8:2+events_unbound11:20:011
496428999285,6cyclictest585265-21kworker/u8:3+events_unbound12:15:020
496430998781,4cyclictest515753-21kworker/u8:2+events_unbound08:20:241
496430998681,3cyclictest548131-21kworker/u8:3+events_unbound10:05:011
496430998673,5cyclictest501153-21kworker/u8:1+events_unbound07:30:151
496430998580,3cyclictest549964-21kworker/u8:1+flush-179:009:55:251
496430998479,4cyclictest569128-21kworker/u8:3+events_unbound11:05:231
496428998469,5cyclictest1-21systemd07:20:000
496430998271,4cyclictest528237-21kworker/u8:1+events_unbound09:10:251
496428998277,4cyclictest552969-21kworker/u8:2+events_unbound10:50:240
496430998176,4cyclictest506211-21kworker/u8:3+events_unbound07:40:221
496428998176,4cyclictest548131-21kworker/u8:3+events_unbound10:00:240
496428997970,3cyclictest552969-21kworker/u8:2+events_unbound10:45:240
496430997870,5cyclictest593283-21kworker/u8:1+events_unbound12:25:191
496430997870,5cyclictest569128-21kworker/u8:3+events_unbound11:00:221
496430997865,5cyclictest552969-21kworker/u8:2+events_unbound11:40:131
496430997865,5cyclictest552969-21kworker/u8:2+events_unbound11:40:131
496428997869,7cyclictest531711-21latency_hist09:00:010
49642899770,76cyclictest1-21systemd09:09:590
496430997671,4cyclictest515753-21kworker/u8:2+events_unbound08:30:251
496430997670,5cyclictest526089-21kworker/u8:0+flush-179:008:45:011
496430997664,4cyclictest536963-21kworker/u8:2+events_unbound09:15:181
496430997571,3cyclictest585265-21kworker/u8:3+events_unbound12:15:241
496428997571,3cyclictest574368-21kworker/u8:0+flush-179:011:15:240
496428997544,1cyclictest0-21swapper/009:11:000
496430997467,5cyclictest585265-21kworker/u8:3+events_unbound12:10:201
496428997470,3cyclictest496382-21kworker/u8:0+flush-179:007:20:280
496430997368,4cyclictest537023-21kworker/u8:3+events_unbound09:25:241
496428997368,4cyclictest590030-21kworker/u8:0+flush-179:012:05:250
496428997368,4cyclictest574368-21kworker/u8:0+events_unbound11:25:240
496430997268,3cyclictest585265-21kworker/u8:3+flush-179:012:00:211
496428997267,4cyclictest574368-21kworker/u8:0+events_unbound11:10:230
496430997059,4cyclictest574368-21kworker/u8:0+events_unbound11:20:281
496428997065,4cyclictest556084-21kworker/u8:1+events_unbound10:25:250
496428997065,4cyclictest509131-21kworker/u8:0+flush-179:008:25:200
496430996962,5cyclictest542312-21diskstats09:30:151
496430996960,6cyclictest552969-21kworker/u8:2+events_unbound10:30:161
496428996964,4cyclictest501153-21kworker/u8:1+flush-179:007:35:260
496430996863,4cyclictest585265-21kworker/u8:3+flush-179:011:55:241
496430996863,4cyclictest531667-21kworker/u8:0+events_unbound09:10:001
496430996863,4cyclictest496382-21kworker/u8:0+flush-179:007:20:261
496430996857,4cyclictest574368-21kworker/u8:0+events_unbound11:30:231
496428996863,4cyclictest598326-21kworker/u8:3+flush-179:012:35:210
496430996757,5cyclictest501153-21kworker/u8:1+events_unbound07:45:181
496428996762,4cyclictest593283-21kworker/u8:1+flush-179:012:25:250
496428996762,4cyclictest574368-21kworker/u8:0+flush-179:011:45:290
496430996661,4cyclictest574368-21kworker/u8:0+flush-179:011:50:201
496430996561,3cyclictest564369-21kworker/u8:0+flush-179:010:40:271
496430996560,4cyclictest598326-21kworker/u8:3+flush-179:012:35:011
496430996558,5cyclictest531667-21kworker/u8:0+flush-179:009:05:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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