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2025-12-10 - 16:08

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 100 highest latencies:
System rack0slot1s.osadl.org (updated Wed Dec 10, 2025 12:45:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2649499134132,1cyclictest0-21swapper/511:54:295
2649499130128,1cyclictest733-21chk_conn_tcp11:57:485
2648299130125,4cyclictest37-21ksoftirqd/307:26:163
2647599130125,4cyclictest29-21ksoftirqd/207:22:132
26494991291,1cyclictest0-21swapper/512:23:505
26487991280,127cyclictest0-21swapper/410:28:334
26487991280,127cyclictest0-21swapper/407:17:194
2647599128122,5cyclictest29-21ksoftirqd/210:49:362
2650599127126,1cyclictest0-21swapper/708:13:527
2650099127126,1cyclictest0-21swapper/609:06:126
26494991270,126cyclictest0-21swapper/509:16:535
26494991270,126cyclictest0-21swapper/509:16:535
2648799127125,1cyclictest0-21swapper/411:03:044
26487991270,2cyclictest0-21swapper/407:52:344
2647599127125,1cyclictest29-21ksoftirqd/209:21:372
2646999127124,3cyclictest21-21ksoftirqd/109:13:301
2646999127124,3cyclictest21-21ksoftirqd/109:13:291
2650099126124,1cyclictest0-21swapper/609:26:466
2650099126124,1cyclictest0-21swapper/607:53:426
2649499126125,1cyclictest0-21swapper/509:25:505
2649499126125,1cyclictest0-21swapper/509:09:175
26494991260,125cyclictest0-21swapper/509:39:005
2648799126123,2cyclictest0-21swapper/410:56:094
2648299126125,0cyclictest3750ksoftirqd/312:10:293
2645899126125,0cyclictest3-21ksoftirqd/007:46:570
2650099125124,1cyclictest0-21swapper/608:11:376
26494991250,1cyclictest0-21swapper/507:52:415
2648799125123,1cyclictest0-21swapper/410:54:274
2648799125121,3cyclictest0-21swapper/410:15:194
2648299125125,0cyclictest37-21ksoftirqd/311:22:433
2648299125125,0cyclictest37-21ksoftirqd/310:06:323
2648299125121,4cyclictest37-21ksoftirqd/308:02:393
2647599125125,0cyclictest29-21ksoftirqd/209:58:012
2647599125123,1cyclictest29-21ksoftirqd/210:34:012
2647599125123,1cyclictest29-21ksoftirqd/208:54:102
2645899125120,4cyclictest3-21ksoftirqd/008:51:040
2650099124123,1cyclictest0-21swapper/612:14:206
26500991240,1cyclictest0-21swapper/610:52:286
2649499124123,1cyclictest0-21swapper/509:59:275
2649499124122,1cyclictest7178-21chk_conn_tcp12:25:325
2649499124122,1cyclictest0-21swapper/508:21:145
26487991240,123cyclictest0-21swapper/409:37:224
26487991240,123cyclictest0-21swapper/408:11:544
2648299124119,4cyclictest37-21ksoftirqd/309:42:093
2647599124122,1cyclictest29-21ksoftirqd/212:13:112
2646999124124,0cyclictest21-21ksoftirqd/111:07:081
2646999124124,0cyclictest21-21ksoftirqd/109:23:201
2646999124123,0cyclictest3460-21chk_conn_tcp10:44:181
2650599123122,1cyclictest0-21swapper/708:48:517
26505991230,1cyclictest21151-21chk_conn_tcp10:35:407
2649499123122,1cyclictest0-21swapper/511:17:305
2645899123122,0cyclictest3-21ksoftirqd/008:05:420
2650599122121,1cyclictest0-21swapper/712:34:567
2650099122120,1cyclictest61-21ksoftirqd/612:09:466
26500991220,121cyclictest0-21swapper/609:02:346
2649499122121,1cyclictest0-21swapper/510:26:375
2649499122120,1cyclictest7487-21chk_conn_tcp07:15:425
2649499122120,1cyclictest0-21swapper/509:53:025
2646999122122,0cyclictest21-21ksoftirqd/111:26:521
2650599121120,1cyclictest0-21swapper/712:36:297
2650099121119,1cyclictest0-21swapper/611:01:306
2650099121119,1cyclictest0-21swapper/607:10:466
2649499121120,1cyclictest0-21swapper/509:48:155
2648799121120,0cyclictest45-21ksoftirqd/408:18:514
2650599120120,0cyclictest69-21ksoftirqd/708:25:567
2650599120118,1cyclictest18688-21chk_conn_tcp11:26:047
2650599120117,2cyclictest0-21swapper/711:52:467
2650099120118,1cyclictest0-21swapper/612:02:186
2650099120118,1cyclictest0-21swapper/611:20:246
2650099120118,1cyclictest0-21swapper/610:34:356
26500991200,119cyclictest0-21swapper/612:35:246
2648799120117,2cyclictest0-21swapper/407:46:284
2647599120117,3cyclictest29-21ksoftirqd/210:26:012
2645899120119,0cyclictest3-21ksoftirqd/009:38:260
2650599119117,1cyclictest0-21swapper/711:16:307
2648799119117,1cyclictest0-21swapper/411:54:344
2648799119114,4cyclictest45-21ksoftirqd/408:50:564
2647599119117,1cyclictest29-21ksoftirqd/210:38:192
2646999119117,1cyclictest21-21ksoftirqd/111:19:121
2645899119119,0cyclictest3-21ksoftirqd/008:16:270
2650599118116,1cyclictest0-21swapper/709:21:157
2649499118117,1cyclictest0-21swapper/511:26:215
2649499118117,1cyclictest0-21swapper/509:03:515
2648299118118,0cyclictest37-21ksoftirqd/312:38:243
2647599118117,0cyclictest29-21ksoftirqd/212:33:522
2647599118113,5cyclictest29-21ksoftirqd/209:18:062
2647599118113,5cyclictest29-21ksoftirqd/209:18:052
2646999118118,0cyclictest21-21ksoftirqd/110:11:251
2646999118118,0cyclictest21-21ksoftirqd/108:44:341
2650599117115,1cyclictest3460-21chk_conn_tcp10:42:597
2650099117115,1cyclictest0-21swapper/608:25:136
2649499117116,1cyclictest0-21swapper/511:21:275
2649499117116,1cyclictest0-21swapper/510:17:225
2649499117116,1cyclictest0-21swapper/507:43:045
2648799117115,1cyclictest45-21ksoftirqd/409:51:134
2648799117114,2cyclictest0-21swapper/409:49:184
26487991170,116cyclictest0-21swapper/411:36:444
2647599117116,0cyclictest29-21ksoftirqd/211:29:342
2646999117117,0cyclictest21-21ksoftirqd/110:57:401
2645899117115,1cyclictest350ksoftirqd/012:15:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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