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2025-12-16 - 14:04

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, 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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack8slot6s.osadl.org (updated Tue Dec 16, 2025 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32465992222,0cyclictest440-21hwrng21:13:060
32465992222,0cyclictest440-21hwrng21:13:060
32479991918,1cyclictest65850irq/126-lan23:25:143
32479991918,1cyclictest65850irq/126-lan19:10:153
32479991818,0cyclictest65850irq/126-lan20:30:133
32479991817,1cyclictest65850irq/126-lan19:34:213
32479991717,0cyclictest65850irq/126-lan21:45:593
32479991717,0cyclictest65850irq/126-lan21:25:143
32479991717,0cyclictest65850irq/126-lan21:10:223
32479991717,0cyclictest65850irq/126-lan21:10:213
32479991717,0cyclictest65850irq/126-lan20:39:153
32479991716,1cyclictest65850irq/126-lan23:57:243
32479991716,1cyclictest65850irq/126-lan23:09:203
32479991716,1cyclictest65850irq/126-lan23:00:133
32479991716,1cyclictest65850irq/126-lan22:00:133
32479991716,1cyclictest65850irq/126-lan21:55:153
32479991716,1cyclictest65850irq/126-lan21:06:443
32479991716,1cyclictest65850irq/126-lan21:06:433
32479991716,1cyclictest65850irq/126-lan20:55:133
32479991716,1cyclictest65850irq/126-lan20:23:573
32479991716,1cyclictest65850irq/126-lan00:15:173
32479991716,1cyclictest65850irq/126-lan00:05:123
32465991717,0cyclictest440-21hwrng20:57:430
32479991616,0cyclictest65850irq/126-lan23:30:143
32479991616,0cyclictest65850irq/126-lan23:15:193
32479991616,0cyclictest65850irq/126-lan22:30:143
32479991616,0cyclictest65850irq/126-lan21:37:123
32479991616,0cyclictest65850irq/126-lan20:46:303
32479991616,0cyclictest65850irq/126-lan20:40:043
32479991616,0cyclictest65850irq/126-lan20:15:133
32479991616,0cyclictest65850irq/126-lan20:10:213
32479991616,0cyclictest65850irq/126-lan19:40:163
32479991616,0cyclictest440-21hwrng19:19:253
32479991615,1cyclictest65850irq/126-lan23:13:213
32479991615,1cyclictest65850irq/126-lan22:45:203
32479991615,1cyclictest65850irq/126-lan22:40:183
32479991615,1cyclictest65850irq/126-lan20:25:193
32479991615,1cyclictest65850irq/126-lan00:20:133
32473991616,0cyclictest440-21hwrng19:57:192
32479991515,0cyclictest65850irq/126-lan23:45:213
32479991515,0cyclictest65850irq/126-lan23:20:173
32479991515,0cyclictest65850irq/126-lan22:20:213
32479991515,0cyclictest65850irq/126-lan21:15:203
32479991515,0cyclictest65850irq/126-lan20:50:213
32479991515,0cyclictest65850irq/126-lan00:35:153
32479991515,0cyclictest65850irq/126-lan00:10:213
32479991515,0cyclictest65850irq/126-lan00:00:203
32479991515,0cyclictest440-21hwrng22:10:263
32479991515,0cyclictest440-21hwrng22:05:193
32479991515,0cyclictest440-21hwrng21:40:433
32479991515,0cyclictest440-21hwrng21:20:163
32479991515,0cyclictest440-21hwrng20:00:223
32479991515,0cyclictest440-21hwrng19:47:043
32479991515,0cyclictest440-21hwrng19:35:493
32479991514,1cyclictest65850irq/126-lan23:50:143
32479991514,1cyclictest65850irq/126-lan23:35:143
32479991514,1cyclictest65850irq/126-lan22:50:143
32479991514,1cyclictest65850irq/126-lan21:30:143
32479991514,1cyclictest65850irq/126-lan21:00:163
32479991514,1cyclictest65850irq/126-lan00:30:013
32473991515,0cyclictest440-21hwrng23:50:462
32473991515,0cyclictest440-21hwrng23:47:432
32473991515,0cyclictest440-21hwrng23:38:292
32473991515,0cyclictest440-21hwrng23:25:112
32473991515,0cyclictest440-21hwrng23:24:092
32473991515,0cyclictest440-21hwrng23:10:512
32473991515,0cyclictest440-21hwrng23:07:472
32473991515,0cyclictest440-21hwrng23:04:422
32473991515,0cyclictest440-21hwrng22:53:272
32473991515,0cyclictest440-21hwrng22:38:052
32473991515,0cyclictest440-21hwrng22:30:542
32473991515,0cyclictest440-21hwrng22:23:452
32473991515,0cyclictest440-21hwrng22:17:352
32473991515,0cyclictest440-21hwrng21:55:052
32473991515,0cyclictest440-21hwrng21:48:552
32473991515,0cyclictest440-21hwrng21:35:372
32473991515,0cyclictest440-21hwrng21:27:252
32473991515,0cyclictest440-21hwrng21:22:182
32473991515,0cyclictest440-21hwrng21:15:082
32473991515,0cyclictest440-21hwrng21:13:052
32473991515,0cyclictest440-21hwrng21:13:042
32473991515,0cyclictest440-21hwrng21:00:482
32473991515,0cyclictest440-21hwrng20:51:342
32473991515,0cyclictest440-21hwrng20:45:272
32473991515,0cyclictest440-21hwrng20:35:112
32473991515,0cyclictest440-21hwrng20:28:022
32473991515,0cyclictest440-21hwrng20:19:512
32473991515,0cyclictest440-21hwrng20:06:312
32473991515,0cyclictest440-21hwrng19:50:082
32473991515,0cyclictest440-21hwrng19:46:022
32473991515,0cyclictest440-21hwrng19:30:412
32473991515,0cyclictest440-21hwrng00:38:552
32473991515,0cyclictest440-21hwrng00:33:482
32473991515,0cyclictest440-21hwrng00:09:122
32467991515,0cyclictest440-21hwrng23:51:481
32467991515,0cyclictest440-21hwrng23:34:241
32467991515,0cyclictest440-21hwrng23:23:071
32467991515,0cyclictest440-21hwrng23:05:431
32467991515,0cyclictest440-21hwrng22:44:141
32467991515,0cyclictest440-21hwrng22:05:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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