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2025-07-13 - 16:03

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 Sun Jul 13, 2025 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16757991919,0cyclictest55650irq/125-lan11:48:210
16757991918,1cyclictest55650irq/125-lan12:29:380
16757991918,1cyclictest55650irq/125-lan12:20:130
16757991918,1cyclictest55650irq/125-lan12:20:130
16757991918,1cyclictest55650irq/125-lan12:10:200
16757991918,1cyclictest55650irq/125-lan12:00:290
16757991918,1cyclictest55650irq/125-lan11:56:090
16757991918,1cyclictest55650irq/125-lan11:50:360
16757991918,1cyclictest55650irq/125-lan11:32:240
16757991918,1cyclictest55650irq/125-lan11:25:190
16757991918,1cyclictest55650irq/125-lan11:06:170
16757991918,1cyclictest55650irq/125-lan10:34:520
16757991918,1cyclictest55650irq/125-lan10:27:410
16757991918,1cyclictest55650irq/125-lan10:20:130
16757991918,1cyclictest55650irq/125-lan10:15:220
16757991918,1cyclictest55650irq/125-lan10:01:240
16757991918,1cyclictest55650irq/125-lan09:43:560
16757991918,1cyclictest55650irq/125-lan09:29:570
16757991918,1cyclictest55650irq/125-lan09:13:370
16757991918,1cyclictest55650irq/125-lan08:22:590
16757991917,1cyclictest55650irq/125-lan12:07:510
16757991917,1cyclictest55650irq/125-lan11:15:220
16757991818,0cyclictest55650irq/125-lan10:46:500
16757991818,0cyclictest55650irq/125-lan10:41:510
16757991818,0cyclictest55650irq/125-lan09:56:440
16757991818,0cyclictest55650irq/125-lan09:36:470
16757991818,0cyclictest55650irq/125-lan09:33:410
16757991818,0cyclictest55650irq/125-lan09:21:150
16757991818,0cyclictest55650irq/125-lan08:56:550
16757991818,0cyclictest55650irq/125-lan07:15:180
16757991817,1cyclictest55650irq/125-lan12:35:150
16757991817,1cyclictest55650irq/125-lan12:30:150
16757991817,1cyclictest55650irq/125-lan11:35:190
16757991817,1cyclictest55650irq/125-lan11:20:140
16757991817,1cyclictest55650irq/125-lan11:10:240
16757991817,1cyclictest55650irq/125-lan11:03:150
16757991817,1cyclictest55650irq/125-lan10:50:220
16757991817,1cyclictest55650irq/125-lan10:38:300
16757991817,1cyclictest55650irq/125-lan10:12:390
16757991817,1cyclictest55650irq/125-lan09:54:390
16757991817,1cyclictest55650irq/125-lan08:51:080
16757991817,1cyclictest55650irq/125-lan08:18:080
16757991817,1cyclictest55650irq/125-lan07:50:160
16757991817,1cyclictest55650irq/125-lan07:49:590
16757991816,1cyclictest55650irq/125-lan10:59:230
16757991816,1cyclictest55650irq/125-lan09:15:170
16757991717,0cyclictest55650irq/125-lan12:17:070
16757991716,1cyclictest55650irq/125-lan11:40:020
16757991716,1cyclictest55650irq/125-lan10:06:570
16757991716,1cyclictest55650irq/125-lan09:46:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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