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2026-05-30 - 14:05

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #3

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 100 highest latencies:
System rack5slot3s.osadl.org (updated Sat May 30, 2026 12:44:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27122236162,23sleep20-21swapper/207:06:472
28212203170,22sleep30-21swapper/307:08:123
27112202166,24sleep10-21swapper/107:06:461
26472199163,25sleep00-21swapper/007:05:550
3239621420,4sleep0304499cyclictest09:25:250
295042600,4sleep3306199cyclictest08:05:273
304499346,13cyclictest1150-21munin-run10:45:010
305099330,25cyclictest0-21swapper/111:54:161
305099321,22cyclictest0-21swapper/110:53:531
305099310,24cyclictest0-21swapper/109:35:291
304499314,12cyclictest4341-21idleruntime-cro08:25:010
305099301,17cyclictest0-21swapper/109:58:401
305099300,11cyclictest0-21swapper/110:59:291
305099291,12cyclictest0-21swapper/108:24:291
305099290,17cyclictest0-21swapper/111:37:211
305099290,12cyclictest0-21swapper/107:21:091
305099281,9cyclictest0-21swapper/107:50:401
305099281,9cyclictest0-21swapper/107:13:251
305099281,11cyclictest0-21swapper/111:01:011
305099281,11cyclictest0-21swapper/108:04:521
305099281,10cyclictest0-21swapper/109:10:051
305099281,10cyclictest0-21swapper/108:29:571
305099280,12cyclictest0-21swapper/110:32:291
304499284,12cyclictest21933-21awk09:05:010
304499283,12cyclictest3385-21perf10:50:010
304499281,13cyclictest2131-21munin-run08:20:020
305099271,16cyclictest0-21swapper/107:30:411
305099271,10cyclictest0-21swapper/109:52:081
305099270,18cyclictest0-21swapper/108:33:131
305099270,12cyclictest0-21swapper/109:20:251
305099270,12cyclictest0-21swapper/108:49:411
305099270,12cyclictest0-21swapper/108:49:411
305099270,12cyclictest0-21swapper/108:43:291
305099270,10cyclictest0-21swapper/111:47:001
304499278,8cyclictest3045-21/usr/sbin/munin12:00:190
306199262,12cyclictest25158-21irqstats09:10:193
306199261,9cyclictest0-21swapper/309:59:513
306199261,10cyclictest0-21swapper/312:21:593
306199261,10cyclictest0-21swapper/308:30:033
305099261,9cyclictest0-21swapper/112:31:531
305099261,9cyclictest0-21swapper/110:45:411
305099261,9cyclictest0-21swapper/108:38:271
305099261,9cyclictest0-21swapper/108:11:411
305099261,16cyclictest0-21swapper/108:59:531
305099261,11cyclictest7326-21sort09:45:001
305099261,10cyclictest0-21swapper/110:04:161
305099261,10cyclictest0-21swapper/108:53:291
305099260,9cyclictest0-21swapper/107:40:571
305099260,8cyclictest0-21swapper/107:25:571
305099260,11cyclictest0-21swapper/109:03:091
304499264,14cyclictest13925-21/usr/sbin/munin11:10:240
3044992616,6cyclictest13737-40dnf10:00:030
3044992615,3cyclictest18433-21cpuspeed_turbos10:10:130
304499260,12cyclictest5232-21idleruntime-cro07:15:010
306199251,9cyclictest0-21swapper/307:57:393
3061992512,6cyclictest0-21swapper/309:45:533
306199251,11cyclictest0-21swapper/307:38:553
306199251,10cyclictest0-21swapper/309:07:273
306199251,10cyclictest0-21swapper/307:24:593
306199250,9cyclictest0-21swapper/311:08:553
306199250,9cyclictest0-21swapper/311:08:553
306199250,10cyclictest0-21swapper/312:25:353
305799252,5cyclictest0-21swapper/209:52:512
305099251,9cyclictest0-21swapper/110:35:491
305099251,9cyclictest0-21swapper/107:38:291
305099251,7cyclictest0-21swapper/110:22:091
305099251,12cyclictest0-21swapper/111:05:451
305099251,12cyclictest0-21swapper/111:05:451
305099251,10cyclictest0-21swapper/109:26:531
305099250,9cyclictest0-21swapper/112:20:051
305099250,9cyclictest0-21swapper/110:25:171
304499258,8cyclictest0-21swapper/009:35:260
304499255,5cyclictest87350irq/126-enp1s0-09:25:020
304499255,10cyclictest30315-21/usr/sbin/munin08:10:170
304499252,6cyclictest87350irq/126-enp1s0-10:29:260
304499251,12cyclictest14697-21munin-run07:35:000
306199249,3cyclictest0-21swapper/309:16:393
306199247,3cyclictest0-21swapper/307:40:593
306199246,3cyclictest0-21swapper/310:21:513
306199241,4cyclictest0-21swapper/311:12:223
306199241,11cyclictest0-21swapper/310:03:593
306199241,11cyclictest0-21swapper/308:16:393
306199241,10cyclictest0-21swapper/308:55:513
306199241,10cyclictest0-21swapper/308:13:273
306199240,12cyclictest0-21swapper/311:53:433
306199240,12cyclictest0-21swapper/310:06:553
305099247,6cyclictest0-21swapper/107:55:081
305099246,7cyclictest0-21swapper/112:00:091
305099241,8cyclictest0-21swapper/109:06:371
305099241,11cyclictest0-21swapper/112:36:531
305099241,11cyclictest0-21swapper/110:43:451
305099241,10cyclictest0-21swapper/107:16:391
305099240,8cyclictest0-21swapper/112:07:171
305099240,15cyclictest0-21swapper/111:29:531
305099240,11cyclictest0-21swapper/112:28:291
304499249,7cyclictest7717-21diskstats09:45:150
304499248,8cyclictest24656-21/usr/sbin/munin11:35:250
304499243,12cyclictest0-21swapper/010:57:400
304499241,11cyclictest19106-21awk07:45:010
163382241,19sleep216511-21df_inode10:05:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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