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2025-12-06 - 12:18

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, 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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  Intel
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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot6s.osadl.org (updated Sat Dec 06, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
243799980,6rtkit-daemon0-21swapper/319:01:113
243799980,5rtkit-daemon0-21swapper/323:37:523
243799970,5rtkit-daemon0-21swapper/300:01:223
243799960,6rtkit-daemon0-21swapper/322:26:553
243799960,5rtkit-daemon0-21swapper/323:23:383
243799950,6rtkit-daemon0-21swapper/323:49:523
243799950,6rtkit-daemon0-21swapper/323:49:523
243799950,5rtkit-daemon37-21ksoftirqd/300:13:143
243799950,5rtkit-daemon0-21swapper/318:54:193
243799950,3rtkit-daemon0-21swapper/318:56:183
243799950,3rtkit-daemon0-21swapper/318:56:183
243799940,6rtkit-daemon0-21swapper/300:10:443
2270699923,81cyclictest1618-21nscd23:05:580
22706998630,49cyclictest16047-21cpuspeed_turbos20:46:170
22706998528,51cyclictest4590-21sed20:21:210
22706998414,12cyclictest22685-21idleruntime-cro18:46:080
22706998228,10cyclictest24397-21cpuspeed_turbos19:56:200
22706998227,8cyclictest4239-21unixbench_singl21:26:350
22706998224,7cyclictest1369-21runrttasks21:02:240
22706998224,7cyclictest1369-21runrttasks21:02:240
22706998223,10cyclictest9616-21taskset20:31:290
243799810,26rtkit-daemon0-21swapper/223:51:293
243799810,26rtkit-daemon0-21swapper/223:41:303
2270699814,8cyclictest6969-21gltestperf20:26:250
2270699814,70cyclictest0-21swapper/020:51:200
22706998134,39cyclictest26937-21grep21:06:360
2270699813,31cyclictest0-21swapper/022:31:580
2270699813,12cyclictest0-21swapper/020:56:360
2270699813,12cyclictest0-21swapper/019:46:260
22706998114,19cyclictest31555-21cpuspeed_turbos20:11:180
2270699803,25cyclictest0-21swapper/019:16:410
2270699803,24cyclictest7541-21tr23:51:100
22706998025,48cyclictest0-21swapper/020:36:240
22706998023,11cyclictest30907-21grep19:01:260
2270699794,12cyclictest0-21swapper/023:56:190
22706997918,12cyclictest24133-21grep18:46:330
2270699784,29cyclictest0-21swapper/000:11:110
2270699784,25cyclictest0-21swapper/020:41:360
2270699784,12cyclictest0-21swapper/022:26:340
2270699784,12cyclictest0-21swapper/021:41:210
2270699784,12cyclictest0-21swapper/021:41:210
2270699783,12cyclictest0-21swapper/019:51:180
22706997821,10cyclictest15333-21tail19:36:260
22706997821,10cyclictest15333-21tail19:36:260
22706997820,10cyclictest1618-21nscd22:10:590
2270699774,8cyclictest1369-21runrttasks21:40:460
2270699774,11cyclictest0-21swapper/023:16:290
22706997732,39cyclictest13741-21grep00:01:320
2270699773,32cyclictest0-21swapper/021:56:260
2270699773,32cyclictest0-21swapper/021:31:190
2270699773,30cyclictest0-21swapper/021:56:010
2270699773,30cyclictest0-21swapper/019:22:110
2270699773,27cyclictest13260-21grep21:46:280
2270699773,24cyclictest0-21swapper/019:11:260
2270699773,11cyclictest0-21swapper/019:08:100
22706997724,9cyclictest28092-21grep22:16:360
22706997724,7cyclictest1369-21runrttasks22:44:110
22706997724,10cyclictest0-21swapper/020:16:210
22706997721,8cyclictest25177-21telnet23:21:090
22706997714,10cyclictest0-21swapper/022:51:110
108802770,5sleep110882-21aten2.4-expect22:51:111
2270699763,8cyclictest22171-21chrt23:11:330
22706997523,8cyclictest1369-21runrttasks22:39:310
22706997513,17cyclictest0-21swapper/022:21:110
2270699744,14cyclictest0-21swapper/021:21:360
22706997424,10cyclictest19185-21strings23:06:230
22706997424,10cyclictest19185-21strings23:06:230
22706997422,8cyclictest30927-21hwlatdetect21:16:210
22706997422,7cyclictest31006-21munin-run20:11:040
2270699734,10cyclictest0-21swapper/019:31:210
2270699733,19cyclictest0-21swapper/019:28:500
22706997323,7cyclictest27786-21cpu21:11:160
22706997321,8cyclictest14758-21cstates00:06:120
22706997224,9cyclictest0-21swapper/022:46:280
22706997219,8cyclictest27557-21aten2.4-expect23:26:070
22706997216,8cyclictest25445-21python22:11:320
2270699715,14cyclictest0-21swapper/023:41:240
2270699714,28cyclictest0-21swapper/020:02:360
2270699713,29cyclictest0-21swapper/023:46:270
2270699713,29cyclictest0-21swapper/023:46:270
22706997121,8cyclictest30726-21gltestperf23:31:180
22706997121,8cyclictest1084-21needreboot23:36:230
2270699704,28cyclictest0-21swapper/019:01:080
2270699704,28cyclictest0-21swapper/019:01:080
2270699693,8cyclictest19269-21aten_r1power_en22:01:150
22706996925,11cyclictest0-21swapper/022:56:280
2270699683,31cyclictest0-21swapper/019:41:160
22712996411,31cyclictest0-21swapper/321:46:013
22712996411,31cyclictest0-21swapper/321:46:013
2271099643,55cyclictest0-21swapper/100:03:371
2271199623,50cyclictest4290-21grep19:11:402
2271199623,40cyclictest0-21swapper/223:25:572
2270699623,10cyclictest0-21swapper/018:51:200
185962603,49sleep10-21swapper/120:51:211
24102594,47sleep20-21swapper/222:31:262
22712995838,13cyclictest2806-21cpuspeed_turbos21:26:153
22712995838,12cyclictest18844-21gltestperf23:06:173
22712995838,12cyclictest18844-21gltestperf23:06:173
2271099573,48cyclictest0-21swapper/123:56:071
2271099573,47cyclictest0-21swapper/121:51:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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