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2025-04-03 - 15:52

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 Thu Apr 03, 2025 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23104211295,12sleep10-21swapper/107:07:271
23123211195,11sleep30-21swapper/307:07:423
23039210897,6sleep20-21swapper/207:06:372
3018421060,0sleep30-21swapper/310:12:253
22960210594,6sleep00-21swapper/007:05:340
147252760,0sleep20-21swapper/212:19:262
154822700,1sleep10-21swapper/108:10:011
223372690,0sleep00-21swapper/009:29:250
47652670,0sleep10-21swapper/110:55:171
274662660,4sleep02332899cyclictest11:57:150
99812260,0sleep00-21swapper/010:25:370
203412250,0sleep30-21swapper/311:12:493
248372220,1sleep30-21swapper/307:10:263
248372220,1sleep30-21swapper/307:10:253
236402220,1sleep20-21swapper/207:10:122
236402220,1sleep20-21swapper/207:10:122
2333199221,2cyclictest0-21swapper/307:58:463
2333199221,19cyclictest0-21swapper/308:15:123
2332999221,19cyclictest0-21swapper/108:15:121
23331992118,2cyclictest1921-21kworker/u8:211:33:043
2333099212,17cyclictest0-21swapper/210:30:052
23330992118,2cyclictest30399-21kworker/u8:109:30:052
23330992117,3cyclictest23040-21kworker/u8:210:45:042
2332999210,19cyclictest0-21swapper/109:00:111
23328992118,2cyclictest2222-21kworker/u8:210:04:040
23330992017,2cyclictest9770-21kworker/u8:209:21:032
23330992017,2cyclictest26689-21kworker/u8:211:58:042
23330992017,2cyclictest2222-21kworker/u8:210:10:042
23330992017,2cyclictest17740-21kworker/u8:110:35:032
23328992017,2cyclictest7536-21kworker/u8:210:34:020
23330991916,2cyclictest8092-21kworker/u8:011:54:042
23330991916,2cyclictest8092-21kworker/u8:011:38:042
23330991916,2cyclictest28821-21kworker/u8:011:25:042
23330991916,2cyclictest28575-21kworker/u8:111:04:032
23330991916,2cyclictest2222-21kworker/u8:209:58:042
23330991916,2cyclictest13724-21kworker/u8:008:37:032
23330991916,2cyclictest11731-21kworker/u8:010:50:032
2333099190,17cyclictest0-21swapper/211:06:032
30282180,0sleep10-21swapper/110:18:001
23331991815,2cyclictest2381-21kworker/u8:010:19:043
23331991815,2cyclictest14172-21kworker/u8:112:34:043
2333199180,17cyclictest0-21swapper/309:23:033
23330991815,2cyclictest27991-21kworker/u8:009:47:042
23330991815,2cyclictest27378-21kworker/u8:110:22:052
23330991815,2cyclictest25391-21kworker/u8:207:17:042
23330991815,2cyclictest23538-21kworker/u8:107:45:032
23330991815,2cyclictest2222-21kworker/u8:210:00:042
23330991815,2cyclictest21128-21kworker/u8:111:17:032
23330991815,2cyclictest1921-21kworker/u8:211:41:052
23330991815,2cyclictest1921-21kworker/u8:211:32:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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