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2024-07-27 - 14:26

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, 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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack3slot6s.osadl.org (updated Sat Jul 27, 2024 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
324342115104,6sleep00-21swapper/007:07:390
325082114104,6sleep20-21swapper/207:08:372
32430211392,15sleep10-21swapper/107:07:361
32377210696,6sleep30-21swapper/307:06:553
143962930,1sleep2301ktimersoftd/212:36:002
8632690,1sleep1864-21sh11:46:571
213822620,1sleep30-21swapper/310:25:043
287172220,0sleep30-21swapper/310:32:153
32649992116,3cyclictest2429-21chrt08:35:113
3264599210,19cyclictest0-21swapper/111:00:101
3264499212,18cyclictest0-21swapper/008:25:140
149422210,0sleep20-21swapper/209:05:162
3264999200,18cyclictest0-21swapper/307:55:093
3264599200,18cyclictest0-21swapper/107:55:091
3264499201,2cyclictest0-21swapper/011:50:120
3264899190,2cyclictest0-21swapper/210:10:052
3264899190,17cyclictest0-21swapper/210:33:042
3264599190,2cyclictest0-21swapper/112:25:111
145862190,1sleep2301ktimersoftd/210:51:422
32648991815,2cyclictest6197-21ssh10:43:042
32648991815,2cyclictest392-21kworker/u8:011:16:052
32648991815,2cyclictest28228-21kworker/u8:010:49:052
32648991815,2cyclictest28228-21kworker/u8:010:49:052
32648991815,2cyclictest23746-21kworker/u8:209:17:042
32648991815,2cyclictest16877-21kworker/u8:210:36:052
32648991815,2cyclictest1523-21kworker/u8:209:34:052
32644991813,2cyclictest0-21swapper/012:10:010
32648991714,2cyclictest28228-21kworker/u8:011:00:042
32648991714,2cyclictest16877-21kworker/u8:209:59:042
32644991712,3cyclictest0-21swapper/010:21:410
191832170,1sleep30-21swapper/309:12:023
32648991613,2cyclictest16877-21kworker/u8:210:16:042
3264599160,14cyclictest0-21swapper/112:17:181
3264599160,14cyclictest0-21swapper/108:20:101
3264499160,14cyclictest0-21swapper/010:43:420
3264999152,7cyclictest0-21swapper/308:25:013
3264999150,13cyclictest12319-21sh11:25:103
32648991512,2cyclictest2430-21kworker/u8:212:25:032
32648991512,2cyclictest23746-21kworker/u8:209:21:052
32648991512,2cyclictest1523-21kworker/u8:209:35:052
32648991512,2cyclictest11510-21kworker/u8:109:49:052
3264899150,2cyclictest0-21swapper/209:11:042
3264899150,13cyclictest0-21swapper/212:34:402
3264899150,13cyclictest0-21swapper/207:35:162
3264899150,13cyclictest0-21swapper/207:35:152
3264599151,12cyclictest30676-21apt-get10:35:101
32645991510,3cyclictest0-21swapper/109:35:281
3264599150,3cyclictest26542-21cpuspeed_turbos11:40:121
3264599150,13cyclictest16393-21diskmemload09:12:401
3264599150,13cyclictest0-21swapper/107:20:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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