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2026-04-09 - 08:28

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 Thu Apr 09, 2026 00:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
118852237164,24sleep30-21swapper/319:07:023
120632226153,24sleep20-21swapper/219:09:222
117852202167,23sleep10-21swapper/119:05:431
118672201165,25sleep00-21swapper/019:06:470
1705021650,4sleep21220799cyclictest00:10:242
3235721530,4sleep31221499cyclictest19:51:273
224022670,4sleep022400-21grep21:55:260
59352630,4sleep25929-21munin-run22:35:012
12207996057,2cyclictest0-21swapper/222:39:262
65982590,4sleep31221499cyclictest21:20:213
40692540,2sleep121-21rcuc/121:15:181
198432500,2sleep00-21swapper/019:25:120
240422490,3sleep230-21rcuc/219:35:022
313492470,2sleep20-21swapper/219:50:152
51382460,3sleep339-21rcuc/320:05:133
39682360,4sleep01219599cyclictest21:15:170
1219599349,12cyclictest30105-21munin-run23:30:020
1219599341,19cyclictest13933-21kworker/0:021:40:570
1220799311,21cyclictest0-21swapper/223:40:212
1220799311,14cyclictest0-21swapper/223:34:252
12195993120,3cyclictest24948-21kworker/0:222:15:000
12195993110,7cyclictest17069-21kworker/0:119:20:490
1220799301,12cyclictest0-21swapper/221:50:172
1220799301,12cyclictest0-21swapper/220:30:132
1220799300,21cyclictest0-21swapper/219:42:432
1219599307,11cyclictest24480-21basename20:50:010
273202290,2sleep30-21swapper/322:10:023
1220799291,18cyclictest0-21swapper/200:19:012
1220799291,13cyclictest0-21swapper/219:16:392
1220299291,3cyclictest4337-21latency_hist23:45:011
1219599292,25cyclictest18927-21kworker/0:323:05:250
12195992920,3cyclictest19393-21kworker/0:300:29:210
1219599291,10cyclictest2986-21kworker/0:221:25:130
1219599291,10cyclictest14932-21kworker/0:222:58:530
1220799281,21cyclictest0-21swapper/223:46:172
1220799281,17cyclictest0-21swapper/221:41:212
1220799281,14cyclictest0-21swapper/222:59:172
1220799281,14cyclictest0-21swapper/200:06:252
1220799281,13cyclictest0-21swapper/223:57:212
1220799281,12cyclictest14765-21ntpq20:25:212
1220799281,12cyclictest14765-21ntpq20:25:212
1220799281,12cyclictest0-21swapper/222:22:252
1220799281,12cyclictest0-21swapper/219:10:212
1220799281,12cyclictest0-21swapper/219:10:212
1220799281,11cyclictest0-21swapper/223:35:172
1220799281,11cyclictest0-21swapper/220:07:312
1220799281,10cyclictest0-21swapper/222:16:132
1220799280,13cyclictest0-21swapper/221:22:412
1220799280,12cyclictest0-21swapper/223:27:392
1220799280,12cyclictest0-21swapper/221:34:132
1219599286,11cyclictest87350irq/126-enp1s0-00:21:130
1219599281,13cyclictest11900-21munin-run21:35:010
1220799279,3cyclictest0-21swapper/200:30:172
1220799271,9cyclictest0-21swapper/220:49:192
1220799271,13cyclictest0-21swapper/222:46:172
1220799271,13cyclictest0-21swapper/221:55:372
1220799271,12cyclictest0-21swapper/222:52:172
1220799271,12cyclictest0-21swapper/222:52:172
1220799271,12cyclictest0-21swapper/222:02:052
1220799271,12cyclictest0-21swapper/200:26:332
1220799271,11cyclictest0-21swapper/221:14:402
1220799271,10cyclictest0-21swapper/219:38:032
1220799270,2cyclictest0-21swapper/219:24:152
1220799270,13cyclictest0-21swapper/200:39:572
1220299277,10cyclictest18779-21smartctl20:35:151
1219599279,15cyclictest31692-21munin-run22:20:010
12195992713,3cyclictest13933-21kworker/0:021:53:410
1219599271,12cyclictest5619-21kworker/0:222:35:290
1220799261,12cyclictest0-21swapper/223:14:162
1220799261,11cyclictest0-21swapper/223:53:492
1220799260,13cyclictest0-21swapper/222:14:492
1220799260,12cyclictest0-21swapper/222:07:052
1220299260,17cyclictest0-21swapper/122:44:281
1219599262,10cyclictest596-21kworker/0:121:08:570
1219599262,10cyclictest23656-21kworker/0:019:42:090
1219599262,10cyclictest21601-21kworker/0:000:32:130
1219599261,9cyclictest6487-21kworker/0:100:15:090
1219599261,9cyclictest30382-21kworker/0:119:55:170
1219599261,20cyclictest3364-21kworker/0:122:30:410
1219599261,13cyclictest9082-21munin-run20:15:010
1219599261,11cyclictest17809-21kworker/0:120:40:330
1219599261,10cyclictest24948-21kworker/0:222:04:490
1219599261,10cyclictest18394-21kworker/0:221:49:330
12214992520,3cyclictest14124-21cat00:05:163
1220799251,13cyclictest0-21swapper/200:20:292
1220799251,12cyclictest0-21swapper/221:28:012
1220799251,10cyclictest0-21swapper/221:37:332
1220799251,10cyclictest0-21swapper/221:37:332
1220799250,17cyclictest0-21swapper/223:22:192
1219599259,12cyclictest31323-21strings23:30:190
1219599258,3cyclictest22302-21kworker/0:020:50:130
1219599255,3cyclictest14932-21kworker/0:223:14:090
1219599252,9cyclictest22622-21kworker/0:023:19:330
1219599252,8cyclictest30785-21kworker/0:021:11:530
1219599251,10cyclictest1978-21kworker/0:023:39:250
1221499247,7cyclictest23403-21expr22:00:123
1220799241,9cyclictest0-21swapper/221:08:392
1220799241,15cyclictest0-21swapper/222:41:292
1220799241,10cyclictest0-21swapper/223:16:452
1220799240,12cyclictest0-21swapper/221:16:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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