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2025-06-17 - 06:13

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #1

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack0slot1s.osadl.org (updated Tue Jun 17, 2025 00:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2308099132129,2cyclictest0-21swapper/600:17:036
2308099129127,2cyclictest0-21swapper/622:06:486
2308099129124,4cyclictest15149-21chk_conn_tcp22:47:166
2307099128127,1cyclictest0-21swapper/421:43:074
2305799127126,0cyclictest29-21ksoftirqd/222:28:072
2308099126123,2cyclictest0-21swapper/621:51:126
2307099126122,2cyclictest0-21swapper/422:25:334
2308099125123,1cyclictest8004-21chk_conn_tcp20:09:306
2305799125125,0cyclictest29-21ksoftirqd/221:20:462
2305399125125,0cyclictest21-21ksoftirqd/122:06:371
23080991240,123cyclictest0-21swapper/600:20:076
2307599124121,2cyclictest0-21swapper/523:06:015
2307099124122,1cyclictest1393-21chk_conn_tcp21:12:394
2304599124124,0cyclictest3-21ksoftirqd/019:28:530
2304599124122,2cyclictest3-21ksoftirqd/022:11:260
2305399123121,1cyclictest21-21ksoftirqd/121:58:091
2304599123123,0cyclictest3-21ksoftirqd/023:00:450
2308499122121,1cyclictest0-21swapper/721:25:107
2308499122120,1cyclictest0-21swapper/721:32:577
2308499122117,4cyclictest24422-21chk_conn_tcp22:25:197
2307599122121,1cyclictest0-21swapper/519:52:435
2306399122121,0cyclictest37-21ksoftirqd/320:33:583
2305799122120,1cyclictest29-21ksoftirqd/222:40:252
2305799122120,1cyclictest29-21ksoftirqd/222:02:572
2305399122120,1cyclictest21-21ksoftirqd/121:35:351
2305799121121,0cyclictest29-21ksoftirqd/220:09:262
2306399120119,0cyclictest37-21ksoftirqd/319:22:253
2305799120119,0cyclictest29-21ksoftirqd/223:48:192
2305799120119,0cyclictest29-21ksoftirqd/223:48:192
2305399120119,0cyclictest21-21ksoftirqd/121:21:491
2308499119118,1cyclictest0-21swapper/722:55:357
2305799119118,0cyclictest29-21ksoftirqd/222:59:462
2305399119119,0cyclictest21-21ksoftirqd/123:57:271
2304599119118,0cyclictest3-21ksoftirqd/022:33:510
2308499118115,2cyclictest0-21swapper/722:09:247
23080991180,1cyclictest0-21swapper/621:41:336
2307099118117,0cyclictest190750irq/36-eth1-rx-19:51:564
2305399118118,0cyclictest21-21ksoftirqd/123:45:231
2305399118118,0cyclictest21-21ksoftirqd/123:45:221
2307099117115,1cyclictest0-21swapper/422:18:454
2305799117117,0cyclictest29-21ksoftirqd/221:02:142
2305799117117,0cyclictest29-21ksoftirqd/200:16:092
2304599117117,0cyclictest3-21ksoftirqd/019:36:320
2304599117114,2cyclictest0-21swapper/019:42:320
2304599117114,2cyclictest0-21swapper/019:42:320
2307099116114,1cyclictest8971-21chk_conn_tcp22:32:024
2306399116114,1cyclictest37-21ksoftirqd/321:09:433
2304599116115,0cyclictest3-21ksoftirqd/000:06:120
2308499115114,1cyclictest0-21swapper/721:39:177
2308099115113,1cyclictest17659-21sleep21:57:136
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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