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2025-12-15 - 13:18

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 Mon Dec 15, 2025 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
459991918,1cyclictest65850irq/126-lan23:15:143
459991918,1cyclictest65850irq/126-lan21:50:133
459991918,1cyclictest65850irq/126-lan20:05:223
459991818,0cyclictest65850irq/126-lan20:10:193
459991818,0cyclictest65850irq/126-lan19:12:323
459991817,1cyclictest65850irq/126-lan21:20:133
459991817,1cyclictest65850irq/126-lan20:55:003
459991817,1cyclictest65850irq/126-lan20:30:203
459991817,1cyclictest65850irq/126-lan20:15:153
452991818,0cyclictest440-21hwrng21:19:291
459991717,0cyclictest65850irq/126-lan22:05:363
459991717,0cyclictest65850irq/126-lan20:00:133
459991716,1cyclictest65850irq/126-lan23:30:223
459991716,1cyclictest65850irq/126-lan22:50:213
459991716,1cyclictest65850irq/126-lan22:22:223
459991716,1cyclictest65850irq/126-lan21:55:213
459991716,1cyclictest65850irq/126-lan19:25:223
459991716,1cyclictest65850irq/126-lan00:10:123
455991717,0cyclictest440-21hwrng21:10:162
459991616,0cyclictest65850irq/126-lan22:32:383
459991616,0cyclictest65850irq/126-lan21:45:223
459991616,0cyclictest65850irq/126-lan20:50:143
459991616,0cyclictest440-21hwrng22:57:483
459991616,0cyclictest440-21hwrng00:25:513
459991615,1cyclictest65850irq/126-lan23:40:143
459991615,1cyclictest65850irq/126-lan23:05:113
459991615,1cyclictest65850irq/126-lan23:00:173
459991615,1cyclictest65850irq/126-lan22:10:153
459991615,1cyclictest65850irq/126-lan21:35:463
459991615,1cyclictest65850irq/126-lan20:45:113
459991515,0cyclictest65850irq/126-lan23:55:143
459991515,0cyclictest65850irq/126-lan23:20:143
459991515,0cyclictest65850irq/126-lan22:15:203
459991515,0cyclictest65850irq/126-lan21:30:113
459991515,0cyclictest440-21hwrng23:35:403
459991515,0cyclictest440-21hwrng22:49:353
459991515,0cyclictest440-21hwrng22:44:293
459991515,0cyclictest440-21hwrng22:35:153
459991515,0cyclictest440-21hwrng21:40:593
459991515,0cyclictest440-21hwrng21:15:233
459991515,0cyclictest440-21hwrng21:12:193
459991515,0cyclictest440-21hwrng20:29:183
459991515,0cyclictest440-21hwrng20:21:073
459991515,0cyclictest440-21hwrng19:50:243
459991515,0cyclictest440-21hwrng19:42:123
459991515,0cyclictest440-21hwrng19:30:563
459991515,0cyclictest440-21hwrng19:17:383
459991515,0cyclictest440-21hwrng00:37:073
459991515,0cyclictest440-21hwrng00:31:593
459991514,1cyclictest65850irq/126-lan23:10:143
459991514,1cyclictest65850irq/126-lan22:25:123
459991514,1cyclictest65850irq/126-lan22:00:163
459991514,1cyclictest65850irq/126-lan20:35:203
459991514,1cyclictest65850irq/126-lan19:45:143
459991514,1cyclictest65850irq/126-lan00:15:193
459991514,1cyclictest65850irq/126-lan00:05:133
455991515,0cyclictest440-21hwrng23:59:132
455991515,0cyclictest440-21hwrng23:50:002
455991515,0cyclictest440-21hwrng23:41:492
455991515,0cyclictest440-21hwrng23:32:372
455991515,0cyclictest440-21hwrng23:10:042
455991515,0cyclictest440-21hwrng23:05:592
455991515,0cyclictest440-21hwrng22:59:502
455991515,0cyclictest440-21hwrng22:51:382
455991515,0cyclictest440-21hwrng22:44:292
455991515,0cyclictest440-21hwrng22:27:052
455991515,0cyclictest440-21hwrng22:23:592
455991515,0cyclictest440-21hwrng22:06:352
455991515,0cyclictest440-21hwrng22:01:282
455991515,0cyclictest440-21hwrng21:39:572
455991515,0cyclictest440-21hwrng21:18:272
455991515,0cyclictest440-21hwrng21:08:132
455991515,0cyclictest440-21hwrng20:55:562
455991515,0cyclictest440-21hwrng20:50:502
455991515,0cyclictest440-21hwrng20:47:442
455991515,0cyclictest440-21hwrng20:43:392
455991515,0cyclictest440-21hwrng20:36:292
455991515,0cyclictest440-21hwrng20:28:172
455991515,0cyclictest440-21hwrng20:04:442
455991515,0cyclictest440-21hwrng19:36:032
455991515,0cyclictest440-21hwrng19:27:522
455991515,0cyclictest440-21hwrng00:36:062
455991515,0cyclictest440-21hwrng00:27:542
455991515,0cyclictest440-21hwrng00:15:362
455991515,0cyclictest440-21hwrng00:09:292
455991515,0cyclictest440-21hwrng00:04:222
455991514,1cyclictest440-21hwrng20:19:042
452991515,0cyclictest440-21hwrng23:45:561
452991515,0cyclictest440-21hwrng23:44:531
452991515,0cyclictest440-21hwrng23:37:431
452991515,0cyclictest440-21hwrng23:33:381
452991515,0cyclictest440-21hwrng23:25:261
452991515,0cyclictest440-21hwrng23:15:121
452991515,0cyclictest440-21hwrng23:11:061
452991515,0cyclictest440-21hwrng23:05:581
452991515,0cyclictest440-21hwrng22:45:311
452991515,0cyclictest440-21hwrng22:21:571
452991515,0cyclictest440-21hwrng22:19:541
452991515,0cyclictest440-21hwrng22:09:391
452991515,0cyclictest440-21hwrng22:01:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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