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2024-12-11 - 14:19

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, slot #3

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 rackcslot3s.osadl.org (updated Wed Dec 11, 2024 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
63012318304,5sleep10-21swapper/119:09:551
62092317310,5sleep30-21swapper/319:08:463
61782317303,5sleep20-21swapper/219:08:202
60302315302,10sleep00-21swapper/019:06:300
6490992990,298cyclictest20976-21kworker/u16:2+efi_rts_wq19:30:140
6490992960,295cyclictest20976-21kworker/u16:2+efi_rts_wq19:15:000
6494992930,292cyclictest20976-21kworker/u16:2+efi_rts_wq20:00:131
6498992920,291cyclictest20976-21kworker/u16:2+efi_rts_wq20:40:132
6490992920,291cyclictest3878-21kworker/u16:3+efi_rts_wq21:03:190
6498992910,290cyclictest20976-21kworker/u16:2+efi_rts_wq21:40:152
6498992910,290cyclictest20976-21kworker/u16:2+efi_rts_wq21:05:142
6494992890,288cyclictest3878-21kworker/u16:3+efi_rts_wq21:00:121
6498992880,287cyclictest3878-21kworker/u16:3+efi_rts_wq21:55:132
6498992880,287cyclictest20976-21kworker/u16:2+efi_rts_wq20:55:142
6503992860,285cyclictest13525-21kworker/u16:1+efi_rts_wq23:30:103
6490992860,285cyclictest13525-21kworker/u16:1+efi_rts_wq23:05:260
6503992850,284cyclictest3878-21kworker/u16:3+efi_rts_wq19:43:093
6494992850,284cyclictest20976-21kworker/u16:2+efi_rts_wq19:48:091
6498992830,282cyclictest13525-21kworker/u16:1+efi_rts_wq23:45:122
6490992830,282cyclictest20976-21kworker/u16:2+efi_rts_wq20:53:170
6498992810,280cyclictest20976-21kworker/u16:2+efi_rts_wq20:25:132
6498992800,279cyclictest3878-21kworker/u16:3+efi_rts_wq20:05:122
6498992790,278cyclictest3878-21kworker/u16:3+efi_rts_wq19:40:142
6498992790,278cyclictest3878-21kworker/u16:3+efi_rts_wq19:35:122
6494992780,277cyclictest3878-21kworker/u16:3+efi_rts_wq20:35:141
6490992780,277cyclictest3878-21kworker/u16:3+efi_rts_wq21:48:270
6490992780,277cyclictest3878-21kworker/u16:3+efi_rts_wq20:33:130
6494992740,271cyclictest27021-21kworker/u16:0+efi_rts_wq22:00:121
6490992740,273cyclictest3878-21kworker/u16:3+efi_rts_wq21:10:140
6494992730,272cyclictest27021-21kworker/u16:0+efi_rts_wq00:05:121
6490992710,270cyclictest3878-21kworker/u16:3+efi_rts_wq20:10:130
6490992710,270cyclictest18632-21kworker/u16:2+efi_rts_wq00:35:140
6494992700,269cyclictest18632-21kworker/u16:2+efi_rts_wq23:35:131
6490992700,269cyclictest3878-21kworker/u16:3+efi_rts_wq19:20:120
6490992700,269cyclictest20976-21kworker/u16:2+efi_rts_wq21:20:120
6490992700,269cyclictest13525-21kworker/u16:1+efi_rts_wq23:45:130
6498992690,268cyclictest27021-21kworker/u16:0+efi_rts_wq22:10:122
6503992680,267cyclictest3878-21kworker/u16:3+efi_rts_wq23:05:163
6490992680,267cyclictest27021-21kworker/u16:0+efi_rts_wq22:28:320
6490992680,267cyclictest27021-21kworker/u16:0+efi_rts_wq00:30:130
6498992670,266cyclictest13525-21kworker/u16:1+efi_rts_wq00:00:132
6490992670,265cyclictest13525-21kworker/u16:1+efi_rts_wq23:40:160
6503992650,264cyclictest13525-21kworker/u16:1+efi_rts_wq22:35:143
6490992650,264cyclictest18632-21kworker/u16:2+efi_rts_wq23:20:140
6498992640,263cyclictest3878-21kworker/u16:3+efi_rts_wq19:15:122
6494992640,263cyclictest3878-21kworker/u16:3+efi_rts_wq19:33:081
6490992640,263cyclictest13525-21kworker/u16:1+efi_rts_wq22:35:130
6503992630,261cyclictest13525-21kworker/u16:1+efi_rts_wq00:00:133
6498992630,262cyclictest27021-21kworker/u16:0+efi_rts_wq22:00:122
6490992630,262cyclictest3878-21kworker/u16:3+efi_rts_wq19:58:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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