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2025-12-12 - 18:04

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #7

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 50 highest latencies:
System rack8slot7s.osadl.org (updated Fri Dec 12, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9004991918,1cyclictest55650irq/125-lan23:34:390
9004991918,1cyclictest55650irq/125-lan23:29:120
9004991918,1cyclictest55650irq/125-lan23:07:400
9004991918,1cyclictest55650irq/125-lan22:53:280
9004991918,1cyclictest55650irq/125-lan22:40:240
9004991918,1cyclictest55650irq/125-lan22:34:250
9004991918,1cyclictest55650irq/125-lan22:20:400
9004991918,1cyclictest55650irq/125-lan22:07:320
9004991918,1cyclictest55650irq/125-lan21:37:130
9004991918,1cyclictest55650irq/125-lan21:15:180
9004991918,1cyclictest55650irq/125-lan19:18:490
9004991918,1cyclictest55650irq/125-lan19:12:380
9004991918,1cyclictest55650irq/125-lan00:13:520
9004991918,1cyclictest55650irq/125-lan00:00:240
9004991917,2cyclictest55650irq/125-lan23:55:040
9004991917,1cyclictest55650irq/125-lan22:25:170
9004991917,1cyclictest55650irq/125-lan00:07:010
9004991818,0cyclictest55650irq/125-lan00:15:420
9004991817,1cyclictest55650irq/125-lan23:52:470
9004991817,1cyclictest55650irq/125-lan23:45:140
9004991817,1cyclictest55650irq/125-lan23:36:320
9004991817,1cyclictest55650irq/125-lan23:10:080
9004991817,1cyclictest55650irq/125-lan23:00:580
9004991817,1cyclictest55650irq/125-lan22:55:120
9004991817,1cyclictest55650irq/125-lan22:46:440
9004991817,1cyclictest55650irq/125-lan22:00:320
9004991817,1cyclictest55650irq/125-lan21:59:130
9004991817,1cyclictest55650irq/125-lan21:52:170
9004991817,1cyclictest55650irq/125-lan21:49:060
9004991817,1cyclictest55650irq/125-lan21:33:520
9004991817,1cyclictest55650irq/125-lan21:25:230
9004991817,1cyclictest55650irq/125-lan21:20:310
9004991817,1cyclictest55650irq/125-lan21:11:290
9004991817,1cyclictest55650irq/125-lan21:07:290
9004991817,1cyclictest55650irq/125-lan20:45:080
9004991817,1cyclictest55650irq/125-lan20:06:570
9004991817,1cyclictest55650irq/125-lan19:54:460
9004991817,1cyclictest55650irq/125-lan19:30:410
9004991817,1cyclictest55650irq/125-lan00:29:360
9004991817,1cyclictest55650irq/125-lan00:22:320
9004991816,1cyclictest55650irq/125-lan23:20:150
9007991715,2cyclictest294-21hwrng23:10:341
9004991717,0cyclictest55650irq/125-lan19:55:540
9004991717,0cyclictest55650irq/125-lan19:44:040
9004991716,1cyclictest55650irq/125-lan23:40:590
9004991716,1cyclictest55650irq/125-lan23:15:560
9004991716,1cyclictest55650irq/125-lan22:35:560
9004991716,1cyclictest55650irq/125-lan22:16:290
9004991716,1cyclictest55650irq/125-lan22:12:080
9004991716,1cyclictest55650irq/125-lan21:40:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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