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2026-01-05 - 14:38

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 Mon Jan 05, 2026 12:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31106993838,0cyclictest26277-21fwupd10:52:410
31106991918,1cyclictest65850irq/126-lan08:05:140
31106991818,0cyclictest65850irq/126-lan08:10:030
31106991817,1cyclictest65850irq/126-lan11:00:150
31106991817,1cyclictest65850irq/126-lan08:31:390
31106991817,1cyclictest65850irq/126-lan07:56:390
31106991717,0cyclictest65850irq/126-lan11:43:390
31106991716,1cyclictest65850irq/126-lan12:05:160
31106991716,1cyclictest65850irq/126-lan11:55:130
31106991716,1cyclictest65850irq/126-lan11:35:120
31106991716,1cyclictest65850irq/126-lan10:30:140
31106991716,1cyclictest65850irq/126-lan10:25:260
31106991716,1cyclictest65850irq/126-lan10:00:130
31106991716,1cyclictest65850irq/126-lan09:45:160
31106991716,1cyclictest65850irq/126-lan09:10:130
31106991616,0cyclictest65850irq/126-lan12:25:140
31106991616,0cyclictest65850irq/126-lan09:55:140
31106991616,0cyclictest65850irq/126-lan09:25:120
31106991616,0cyclictest65850irq/126-lan09:15:120
31106991616,0cyclictest65850irq/126-lan09:05:120
31106991616,0cyclictest65850irq/126-lan08:55:160
31106991616,0cyclictest65850irq/126-lan08:15:230
31106991615,1cyclictest65850irq/126-lan12:20:160
31106991615,1cyclictest65850irq/126-lan10:45:140
31106991615,1cyclictest65850irq/126-lan10:10:140
31106991615,1cyclictest65850irq/126-lan08:45:350
31106991615,1cyclictest65850irq/126-lan08:35:150
31106991615,1cyclictest65850irq/126-lan07:40:190
31106991515,0cyclictest65850irq/126-lan12:30:220
31106991515,0cyclictest65850irq/126-lan12:00:160
31106991515,0cyclictest65850irq/126-lan09:40:180
31106991515,0cyclictest65850irq/126-lan07:10:400
31106991514,1cyclictest65850irq/126-lan11:20:180
31106991514,1cyclictest65850irq/126-lan09:50:130
31106991514,1cyclictest65850irq/126-lan08:20:120
31106991514,1cyclictest65850irq/126-lan07:15:120
31106991414,0cyclictest65850irq/126-lan11:50:160
31106991414,0cyclictest65850irq/126-lan10:15:160
31106991313,0cyclictest65850irq/126-lan11:30:190
31106991313,0cyclictest65850irq/126-lan10:55:170
31106991313,0cyclictest65850irq/126-lan10:35:140
31106991313,0cyclictest65850irq/126-lan09:20:190
31106991313,0cyclictest65850irq/126-lan08:51:580
31106991313,0cyclictest65850irq/126-lan08:42:390
31106991313,0cyclictest65850irq/126-lan08:25:120
31106991313,0cyclictest65850irq/126-lan08:04:040
31106991313,0cyclictest65850irq/126-lan07:50:140
31106991313,0cyclictest65850irq/126-lan07:30:210
31106991313,0cyclictest65850irq/126-lan07:20:190
31106991313,0cyclictest23962-21cat09:30:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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