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2025-04-03 - 15:38

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 Thu Apr 03, 2025 12:45:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2662299138137,1cyclictest0-21swapper/607:19:366
2662299138137,1cyclictest0-21swapper/607:19:366
2659399136135,0cyclictest29-21ksoftirqd/207:19:362
2659399136135,0cyclictest29-21ksoftirqd/207:19:362
26614991300,129cyclictest0-21swapper/508:09:435
2661499129126,2cyclictest0-21swapper/511:26:325
26614991271,125cyclictest0-21swapper/510:49:055
26610991270,1cyclictest0-21swapper/412:26:154
26622991260,125cyclictest0-21swapper/612:31:236
2660299126126,0cyclictest37-21ksoftirqd/307:20:583
2660299126124,1cyclictest37-21ksoftirqd/309:11:013
2661099125123,1cyclictest5344-21chk_conn_tcp10:06:554
26610991250,124cyclictest0-21swapper/408:25:404
26627991240,1cyclictest0-21swapper/712:12:147
26622991240,123cyclictest32689-21chk_conn_tcp09:12:036
26622991240,123cyclictest0-21swapper/608:03:026
2661499124122,1cyclictest0-21swapper/510:59:195
2661499124122,1cyclictest0-21swapper/508:29:325
26614991240,1cyclictest0-21swapper/509:15:345
2662799123122,1cyclictest0-21swapper/711:58:467
2661099123122,1cyclictest0-21swapper/411:40:524
2660299123119,3cyclictest37-21ksoftirqd/307:53:283
26602991230,1cyclictest9419-21chk_conn_tcp07:34:273
2659399123123,0cyclictest29-21ksoftirqd/212:31:232
2659399123122,1cyclictest29-21ksoftirqd/208:03:032
2658599123121,1cyclictest21-21ksoftirqd/110:17:251
2658599123119,3cyclictest21-21ksoftirqd/111:54:591
2661499122119,2cyclictest0-21swapper/511:50:265
2659399122122,0cyclictest29-21ksoftirqd/209:12:032
2658599122121,0cyclictest21-21ksoftirqd/108:09:131
26585991220,121cyclictest0-21swapper/111:38:381
26627991210,120cyclictest0-21swapper/710:22:267
2662799120119,1cyclictest0-21swapper/711:19:587
2658599120119,1cyclictest0-21swapper/112:00:411
2658599120116,4cyclictest21-21ksoftirqd/109:10:001
2662799119117,1cyclictest0-21swapper/710:03:207
2662299119118,1cyclictest0-21swapper/609:44:296
2662299119118,1cyclictest0-21swapper/608:48:176
2662299119118,1cyclictest0-21swapper/608:32:006
2662299119117,1cyclictest0-21swapper/611:42:336
2658599119116,3cyclictest21-21ksoftirqd/109:14:321
2660299118114,4cyclictest37-21ksoftirqd/310:22:313
2658599118117,0cyclictest21-21ksoftirqd/112:17:171
2658599118115,3cyclictest21-21ksoftirqd/109:26:251
2658099118118,0cyclictest3-21ksoftirqd/011:38:390
2658099118116,1cyclictest0-21swapper/008:54:150
26622991170,116cyclictest14801-21chk_conn_tcp11:16:146
2661499117115,1cyclictest0-21swapper/508:04:405
2661099117116,1cyclictest0-21swapper/411:32:214
2660299117115,1cyclictest37-21ksoftirqd/308:11:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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