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2024-07-21 - 22:19

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 Sun Jul 21, 2024 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
172622118107,6sleep30-21swapper/307:09:183
17041211894,19sleep00-21swapper/007:06:270
17132210886,17sleep10-21swapper/107:07:361
17038210695,6sleep20-21swapper/207:06:252
183652910,3sleep3381ktimersoftd/307:10:173
163402780,1sleep30-21swapper/310:00:273
163402780,1sleep30-21swapper/310:00:263
91452600,5sleep21734799cyclictest11:40:022
309522570,1sleep20-21swapper/212:39:202
17348993317,14cyclictest0-21swapper/311:05:103
212242270,0sleep20-21swapper/211:52:422
190542240,1sleep10-21swapper/111:15:121
1734899221,19cyclictest0-21swapper/311:00:163
138262220,1sleep0101ktimersoftd/010:34:310
17346992118,2cyclictest871-21sh09:45:101
1734699210,19cyclictest0-21swapper/111:20:111
17345992118,2cyclictest21797-21kworker/u8:211:00:050
322832200,1sleep00-21swapper/009:05:170
174372200,1sleep2301ktimersoftd/209:26:512
1734699205,13cyclictest18076-21ssh12:25:161
1734699200,18cyclictest0-21swapper/111:00:171
1734699200,18cyclictest0-21swapper/110:35:091
1734899181,3cyclictest0-21swapper/307:30:283
17347991815,2cyclictest851-21kworker/u8:209:42:042
17347991815,2cyclictest2685-21kworker/u8:110:25:042
17347991815,2cyclictest22797-21kworker/u8:010:14:042
17347991815,2cyclictest18175-21kworker/u8:210:05:052
17347991813,4cyclictest851-21kworker/u8:209:33:032
17347991714,2cyclictest851-21kworker/u8:209:22:042
17347991714,2cyclictest7416-21kworker/u8:109:19:042
17347991714,2cyclictest25414-21kworker/u8:311:22:052
17345991714,2cyclictest31846-21kworker/u8:110:57:050
24622160,0sleep00-21swapper/009:10:260
1734899161,3cyclictest0-21swapper/310:09:023
17348991612,2cyclictest0-21swapper/307:15:243
17347991613,2cyclictest8194-21kworker/u8:111:45:052
17347991613,2cyclictest701-21kworker/u8:208:12:042
17347991613,2cyclictest26105-21kworker/u8:212:04:052
17347991613,2cyclictest11404-21kworker/u8:112:21:042
1734799160,14cyclictest0-21swapper/210:18:172
1734899152,7cyclictest0-21swapper/311:50:003
17348991512,2cyclictest0-21swapper/307:45:283
1734899151,12cyclictest915-21diskmemload11:30:323
17348991510,3cyclictest4849-21latency_hist10:25:013
17348991510,3cyclictest0-21swapper/311:42:533
1734899150,3cyclictest0-21swapper/309:37:483
17347991512,2cyclictest701-21kworker/u8:208:06:042
17347991512,2cyclictest25046-21kworker/u8:107:28:042
17347991512,2cyclictest2212-21kworker/u8:111:32:052
17347991512,2cyclictest0-21swapper/212:19:062
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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