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2025-05-02 - 12:33

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 50 highest latencies:
System rack8slot6s.osadl.org (updated Fri May 02, 2025 00:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15120991919,0cyclictest65850irq/126-lan22:14:132
15120991918,1cyclictest65850irq/126-lan23:40:122
15120991818,0cyclictest65850irq/126-lan23:18:172
15120991818,0cyclictest65850irq/126-lan22:59:112
15120991818,0cyclictest65850irq/126-lan22:21:242
15120991818,0cyclictest65850irq/126-lan22:15:522
15120991818,0cyclictest65850irq/126-lan19:36:252
15120991818,0cyclictest65850irq/126-lan00:17:002
15120991818,0cyclictest65850irq/126-lan00:10:142
15120991818,0cyclictest65850irq/126-lan00:06:222
15120991817,1cyclictest65850irq/126-lan23:50:172
15120991817,1cyclictest65850irq/126-lan23:36:192
15120991817,1cyclictest65850irq/126-lan22:53:042
15120991817,1cyclictest65850irq/126-lan21:40:152
15120991817,1cyclictest65850irq/126-lan21:35:152
15120991817,1cyclictest65850irq/126-lan21:31:292
15120991817,1cyclictest65850irq/126-lan21:15:162
15120991817,1cyclictest65850irq/126-lan20:40:242
15120991817,1cyclictest65850irq/126-lan19:30:002
15120991817,1cyclictest65850irq/126-lan00:25:422
15120991817,1cyclictest65850irq/126-lan00:02:102
15120991717,0cyclictest65850irq/126-lan23:10:132
15120991717,0cyclictest65850irq/126-lan22:30:142
15120991717,0cyclictest65850irq/126-lan00:37:002
15120991717,0cyclictest65850irq/126-lan00:20:102
15120991716,1cyclictest65850irq/126-lan23:55:132
15120991716,1cyclictest65850irq/126-lan23:45:182
15120991716,1cyclictest65850irq/126-lan23:32:142
15120991716,1cyclictest65850irq/126-lan23:28:222
15120991716,1cyclictest65850irq/126-lan23:20:152
15120991716,1cyclictest65850irq/126-lan22:40:102
15120991716,1cyclictest65850irq/126-lan22:39:542
15120991716,1cyclictest65850irq/126-lan22:00:132
15120991716,1cyclictest65850irq/126-lan21:58:392
15120991716,1cyclictest65850irq/126-lan21:53:262
15120991716,1cyclictest65850irq/126-lan21:45:172
15120991716,1cyclictest65850irq/126-lan21:10:212
15120991716,1cyclictest65850irq/126-lan20:45:192
15120991716,1cyclictest65850irq/126-lan20:35:162
15120991716,1cyclictest65850irq/126-lan20:30:162
15120991716,1cyclictest65850irq/126-lan20:00:162
15120991716,1cyclictest65850irq/126-lan19:45:252
15120991716,1cyclictest65850irq/126-lan19:20:142
15120991616,0cyclictest65850irq/126-lan22:08:052
15120991616,0cyclictest65850irq/126-lan21:25:232
15120991616,0cyclictest65850irq/126-lan21:22:012
15120991616,0cyclictest65850irq/126-lan20:50:162
15120991615,1cyclictest65850irq/126-lan23:05:172
15120991615,1cyclictest65850irq/126-lan23:00:182
15120991615,1cyclictest65850irq/126-lan22:45:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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