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2024-04-25 - 01:59

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #5

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 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 rack9slot5s.osadl.org (updated Wed Apr 24, 2024 12:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31190991312,1cyclictest68350irq/133-lan08:44:561
31190991312,1cyclictest68350irq/133-lan08:24:441
31190991312,1cyclictest68350irq/133-lan07:22:021
2187199130,2rtkit-daemon21870-21rtkit-daemon11:44:130
2187199130,1rtkit-daemon21870-21rtkit-daemon12:22:350
31190991212,0cyclictest68350irq/133-lan09:44:021
31190991212,0cyclictest68350irq/133-lan08:10:231
31190991211,1cyclictest68350irq/133-lan11:45:151
31190991211,1cyclictest68350irq/133-lan11:32:051
31190991211,1cyclictest68350irq/133-lan11:10:561
31190991211,1cyclictest68350irq/133-lan10:50:041
31190991211,1cyclictest68350irq/133-lan10:35:111
31190991211,1cyclictest68350irq/133-lan10:18:271
31190991211,1cyclictest68350irq/133-lan10:06:171
31190991211,1cyclictest68350irq/133-lan09:55:361
31190991211,1cyclictest68350irq/133-lan09:45:231
31190991211,1cyclictest68350irq/133-lan09:35:211
31190991211,1cyclictest68350irq/133-lan09:28:481
31190991211,1cyclictest68350irq/133-lan08:52:011
31190991211,1cyclictest68350irq/133-lan07:37:481
2187199120,1rtkit-daemon21870-21rtkit-daemon10:24:391
2187199120,1rtkit-daemon21870-21rtkit-daemon07:58:550
31190991111,0cyclictest68350irq/133-lan12:05:541
31190991111,0cyclictest68350irq/133-lan11:50:141
31190991111,0cyclictest68350irq/133-lan09:30:571
31190991111,0cyclictest68350irq/133-lan09:03:441
31190991110,1cyclictest68350irq/133-lan12:17:071
31190991110,1cyclictest68350irq/133-lan11:56:121
31190991110,1cyclictest68350irq/133-lan10:10:371
31190991110,1cyclictest68350irq/133-lan09:53:121
31190991110,1cyclictest68350irq/133-lan09:17:581
31190991110,1cyclictest68350irq/133-lan09:10:021
31190991110,1cyclictest68350irq/133-lan08:25:201
31190991110,1cyclictest68350irq/133-lan08:19:471
31190991110,1cyclictest68350irq/133-lan07:58:061
31190991110,1cyclictest68350irq/133-lan07:49:501
31190991110,1cyclictest68350irq/133-lan07:25:041
2187199110,1rtkit-daemon21870-21rtkit-daemon09:14:200
3119099109,1cyclictest68350irq/133-lan12:35:571
3119099109,1cyclictest68350irq/133-lan12:29:361
3119099109,1cyclictest68350irq/133-lan11:16:221
3119099109,1cyclictest68350irq/133-lan11:05:231
3119099109,1cyclictest68350irq/133-lan10:59:261
3119099109,1cyclictest68350irq/133-lan10:40:021
3119099109,1cyclictest68350irq/133-lan08:45:211
3119099109,1cyclictest68350irq/133-lan08:30:191
3119099109,1cyclictest68350irq/133-lan07:15:411
3119099109,1cyclictest68350irq/133-lan07:10:201
31190991010,0cyclictest68350irq/133-lan12:22:201
31190991010,0cyclictest68350irq/133-lan12:00:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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