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2025-12-08 - 19:00

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Default latency plot of shadow in rack #c, 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 20 highest latencies:
System rackcslot7s.osadl.org (updated Mon Dec 08, 2025 12:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
307311621130,4sleep10-21swapper/107:10:231
307311621130,4sleep10-21swapper/107:10:221
307195728240,14sleep00-21swapper/007:06:320
307219627548,17sleep10-21swapper/107:09:381
162399750,5rtkit-daemon2197014-21PK-Backend10:02:373
162399750,5rtkit-daemon2197014-21PK-Backend10:02:373
162399750,10rtkit-daemon1785-21gmain10:11:313
307211327253,13sleep20-21swapper/207:08:362
162399710,8rtkit-daemon854-21avahi-daemon09:48:463
307194527047,15sleep30-21swapper/307:06:233
162399690,4rtkit-daemon0-21swapper/308:46:523
3072355996817,18cyclictest34-21ksoftirqd/210:25:032
3072355996817,18cyclictest34-21ksoftirqd/210:25:022
3072349996422,8cyclictest13-21ksoftirqd/009:25:130
307235799630,58cyclictest1622-21rtkit-daemon07:35:093
3072355996318,18cyclictest34-21ksoftirqd/208:00:002
162399630,8rtkit-daemon1622-21rtkit-daemon09:58:182
3072355996223,20cyclictest34-21ksoftirqd/208:05:002
307234999622,20cyclictest13-21ksoftirqd/010:25:010
307234999622,20cyclictest13-21ksoftirqd/010:25:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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