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2024-04-16 - 13:40

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #2, 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.

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 rack2slot7s.osadl.org (updated Tue Apr 16, 2024 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1104257995949,7cyclictest1224941-21unixbench_singl22:40:351
1104256995228,13cyclictest77550irq/32-end021:30:240
1104256995228,13cyclictest77550irq/32-end021:30:240
1104257994934,12cyclictest1133214-21sshd20:35:241
110425899482,41cyclictest1184292-21ssh21:55:272
1104257994735,8cyclictest1161127-21unin-run21:30:021
1104256994534,8cyclictest1107567-21unin-run19:20:030
110425899444,31cyclictest1197502-21ssh22:10:242
1104256994416,22cyclictest1193010-21ssh22:05:240
1104256994334,5cyclictest77550irq/32-end023:40:300
1104256994334,5cyclictest77550irq/32-end023:40:300
1104256994332,6cyclictest77550irq/32-end023:45:270
1104256994231,8cyclictest77550irq/32-end023:25:270
1104256994218,19cyclictest1232995-21ssh22:50:230
1104257994132,6cyclictest1276586-21grep23:40:191
1104257994132,6cyclictest1276586-21grep23:40:191
1104256994133,5cyclictest1204213-21sshd22:18:240
1104256994017,16cyclictest77550irq/32-end021:45:310
110425799395,29cyclictest1219871-21ssh22:35:261
1104257993920,13cyclictest502-21in:imklog21:05:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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