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2025-07-19 - 06:29

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 Jul 19, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2230991150,7rtkit-daemon0-21swapper/018:37:041
2230991150,7rtkit-daemon0-21swapper/018:37:041
223099940,6rtkit-daemon0-21swapper/018:50:260
223099940,5rtkit-daemon0-21swapper/319:41:543
27364998269,8cyclictest38602sleep023:05:560
27364998130,43cyclictest1265-21runrttasks19:30:420
216522810,2sleep1201ktimersoftd/119:15:451
27364997922,50cyclictest0-21swapper/020:05:440
27364997922,50cyclictest0-21swapper/020:05:440
27364997526,42cyclictest21572-21chrt19:15:440
27364997525,43cyclictest0-21swapper/018:21:100
223099750,7rtkit-daemon0-21swapper/019:01:480
27364997425,41cyclictest0-21swapper/021:11:000
27364997323,43cyclictest0-21swapper/023:05:230
27364997323,43cyclictest0-21swapper/023:05:230
223099730,7rtkit-daemon0-21swapper/119:01:331
27364997230,35cyclictest18968-21latency22:30:480
27364997225,40cyclictest0-21swapper/023:19:100
27364997224,41cyclictest0-21swapper/020:16:020
27364997224,40cyclictest0-21swapper/021:00:410
27364997135,29cyclictest10424-21grep23:20:440
27364997131,13cyclictest6884-21yum-updatesd-he23:15:230
27364997130,35cyclictest26331-21taskset21:40:400
27364997130,34cyclictest27182-21munin-run22:50:220
27364997124,39cyclictest0-21swapper/020:55:410
27364997118,37cyclictest0-21swapper/020:40:550
223099710,9rtkit-daemon0-21swapper/321:35:353
27364997031,33cyclictest1265-21runrttasks22:55:420
27364997026,38cyclictest30806-21idleruntime-cro21:50:250
27364997026,38cyclictest0-21swapper/021:06:000
27364997025,37cyclictest27267-21munin-run20:35:270
27364997024,39cyclictest0-21swapper/023:48:310
27364997024,39cyclictest0-21swapper/023:48:310
223099700,6rtkit-daemon0-21swapper/018:30:570
27364996925,37cyclictest0-21swapper/019:40:310
27364996924,37cyclictest0-21swapper/018:55:430
27364996924,31cyclictest0-21swapper/020:22:450
27364996923,39cyclictest0-21swapper/019:45:590
27364996919,43cyclictest0-21swapper/023:25:320
27364996827,35cyclictest19035-21munin-node23:40:480
27364996827,35cyclictest0-21swapper/021:15:390
27364996826,35cyclictest28359-21basename22:50:440
27364996826,35cyclictest26036-21munin-run21:40:250
27364996825,36cyclictest0-21swapper/021:50:380
223099680,6rtkit-daemon0-21swapper/319:41:092
27364996729,32cyclictest6001-21missed_timers18:40:570
27364996726,34cyclictest0-21swapper/021:20:560
70912663,54sleep30-21swapper/323:15:263
27364996632,28cyclictest32718-21df20:45:450
27364996629,31cyclictest26485-21aten_r1power_vo19:25:420
27364996623,37cyclictest0-21swapper/021:30:450
27364996623,37cyclictest0-21swapper/021:30:450
27364996616,42cyclictest0-21swapper/023:36:400
223099660,8rtkit-daemon0-21swapper/119:33:171
223099660,8rtkit-daemon0-21swapper/118:34:491
223099660,7rtkit-daemon0-21swapper/123:44:151
223099660,7rtkit-daemon0-21swapper/018:55:110
27364996544,15cyclictest0-21swapper/022:40:520
27364996539,18cyclictest1265-21runrttasks20:01:450
27364996532,27cyclictest1265-21runrttasks19:57:020
27364996532,26cyclictest12278-21timerandwakeup22:15:570
27364996532,26cyclictest12278-21timerandwakeup22:15:570
27364996531,27cyclictest2743-21cpuspeed_turbos20:50:400
27364996531,27cyclictest2743-21cpuspeed_turbos20:50:400
27364996531,27cyclictest0-21swapper/020:10:510
27364996526,24cyclictest7380-21swap22:05:580
27364996523,12cyclictest2579-21telnet18:35:460
27364996523,12cyclictest2579-21telnet18:35:460
27364996518,41cyclictest0-21swapper/022:00:350
223099650,8rtkit-daemon0-21swapper/119:10:331
223099650,8rtkit-daemon0-21swapper/118:56:331
223099650,8rtkit-daemon0-21swapper/118:47:411
223099650,8rtkit-daemon0-21swapper/118:40:341
223099650,7rtkit-daemon0-21swapper/123:46:221
223099650,7rtkit-daemon0-21swapper/123:46:221
223099650,7rtkit-daemon0-21swapper/119:29:021
223099650,7rtkit-daemon0-21swapper/119:20:471
223099650,7rtkit-daemon0-21swapper/119:07:111
223099650,7rtkit-daemon0-21swapper/118:51:561
223099650,7rtkit-daemon0-21swapper/118:30:040
223099650,7rtkit-daemon0-21swapper/019:21:320
223099650,7rtkit-daemon0-21swapper/019:11:180
223099650,7rtkit-daemon0-21swapper/019:06:260
27364996434,25cyclictest0-21swapper/019:41:560
27364996430,28cyclictest9105-21gltestperf22:10:430
27364996426,32cyclictest0-21swapper/020:36:000
27364996330,27cyclictest13695-21cut22:20:390
27364996319,38cyclictest0-21swapper/021:25:360
223099620,9rtkit-daemon0-21swapper/322:41:253
223099620,9rtkit-daemon0-21swapper/320:36:593
223099620,8rtkit-daemon0-21swapper/323:21:463
223099620,8rtkit-daemon0-21swapper/320:29:153
223099620,8rtkit-daemon0-21swapper/319:58:463
223099620,7rtkit-daemon0-21swapper/320:13:153
223099620,3rtkit-daemon0-21swapper/322:26:333
223099620,10rtkit-daemon0-21swapper/323:02:393
223099620,10rtkit-daemon0-21swapper/323:02:393
223099620,10rtkit-daemon0-21swapper/321:54:343
2736899615,40cyclictest0-21swapper/318:21:033
27368996118,29cyclictest0-21swapper/322:10:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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