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2025-05-02 - 12:39

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 May 02, 2025 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23967991919,0cyclictest55650irq/125-lan00:30:210
23967991919,0cyclictest294-21hwrng22:37:350
23967991918,1cyclictest55650irq/125-lan23:45:560
23967991918,1cyclictest55650irq/125-lan23:15:210
23967991918,1cyclictest55650irq/125-lan23:14:170
23967991918,1cyclictest55650irq/125-lan22:54:220
23967991918,1cyclictest55650irq/125-lan22:25:140
23967991918,1cyclictest55650irq/125-lan22:16:560
23967991918,1cyclictest55650irq/125-lan22:14:240
23967991918,1cyclictest55650irq/125-lan21:57:130
23967991918,1cyclictest55650irq/125-lan21:52:300
23967991918,1cyclictest55650irq/125-lan21:35:180
23967991918,1cyclictest55650irq/125-lan21:27:420
23967991918,1cyclictest55650irq/125-lan21:24:480
23967991918,1cyclictest55650irq/125-lan19:24:410
23967991918,1cyclictest55650irq/125-lan00:36:030
23967991918,1cyclictest55650irq/125-lan00:21:460
23967991918,1cyclictest55650irq/125-lan00:18:110
23967991918,1cyclictest55650irq/125-lan00:00:410
23967991818,0cyclictest55650irq/125-lan22:46:210
23967991818,0cyclictest55650irq/125-lan22:22:350
23967991818,0cyclictest55650irq/125-lan22:09:380
23967991818,0cyclictest55650irq/125-lan00:25:110
23967991817,1cyclictest55650irq/125-lan23:58:340
23967991817,1cyclictest55650irq/125-lan23:52:510
23967991817,1cyclictest55650irq/125-lan23:43:310
23967991817,1cyclictest55650irq/125-lan23:35:330
23967991817,1cyclictest55650irq/125-lan23:31:060
23967991817,1cyclictest55650irq/125-lan23:20:130
23967991817,1cyclictest55650irq/125-lan23:05:200
23967991817,1cyclictest55650irq/125-lan23:00:230
23967991817,1cyclictest55650irq/125-lan22:55:470
23967991817,1cyclictest55650irq/125-lan22:42:340
23967991817,1cyclictest55650irq/125-lan21:45:020
23967991817,1cyclictest55650irq/125-lan21:40:090
23967991817,1cyclictest55650irq/125-lan21:32:380
23967991817,1cyclictest55650irq/125-lan21:16:110
23967991817,1cyclictest55650irq/125-lan21:12:420
23967991817,1cyclictest55650irq/125-lan20:49:280
23967991817,1cyclictest55650irq/125-lan20:11:470
23967991817,1cyclictest55650irq/125-lan19:56:570
23967991817,1cyclictest55650irq/125-lan19:40:520
23967991817,1cyclictest55650irq/125-lan19:35:120
23967991817,1cyclictest55650irq/125-lan00:10:140
23967991817,1cyclictest55650irq/125-lan00:05:160
23967991816,1cyclictest55650irq/125-lan22:30:140
23967991717,0cyclictest55650irq/125-lan23:25:390
23967991717,0cyclictest55650irq/125-lan20:05:230
23967991716,1cyclictest55650irq/125-lan22:01:160
23967991716,1cyclictest55650irq/125-lan20:32:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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