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2025-07-10 - 19:29

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #1

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 50 highest latencies:
System rack4slot1s.osadl.org (updated Thu Jul 10, 2025 12:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
302812990,3sleep20-21swapper/212:26:452
302812990,3sleep20-21swapper/212:26:452
109352950,2chrt0-21swapper/210:11:382
109352950,2chrt0-21swapper/210:11:382
227732900,3sleep2351rcuc/210:41:452
227732900,3sleep2351rcuc/210:41:452
220662900,3chrt0-21swapper/209:16:302
165252870,3sleep30-21swapper/311:51:363
165252870,3sleep30-21swapper/311:51:363
6852998454,22cyclictest55150irq/47-eth009:31:420
6852998454,22cyclictest55150irq/47-eth009:31:420
37072820,4sleep30-21swapper/308:26:513
37072820,4sleep30-21swapper/308:26:513
6852996236,18cyclictest55150irq/47-eth010:36:400
239292620,1sleep023993-21fschecks_count07:56:460
239292620,1sleep023993-21fschecks_count07:56:460
94772610,2sleep09478-21strings08:41:470
94772610,2sleep09478-21strings08:41:470
115902600,3chrt0-21swapper/311:36:493
115902600,3chrt0-21swapper/311:36:493
163902560,3sleep30-21swapper/310:24:503
163902560,3sleep30-21swapper/310:24:503
133292540,2sleep30-21swapper/310:16:453
133292540,2sleep30-21swapper/310:16:453
248712530,3sleep20-21swapper/207:56:552
248712530,3sleep20-21swapper/207:56:552
227672530,3chrt0-21swapper/109:16:461
227672530,3chrt0-21swapper/109:16:461
127732530,3chrt0-21swapper/108:51:371
131092520,3sleep20-21swapper/211:41:422
157602510,1sleep2351rcuc/211:46:532
157602510,1sleep2351rcuc/211:46:532
685299503,6cyclictest171ktimers/010:31:430
685299503,6cyclictest171ktimers/010:31:430
62642500,3sleep20-21swapper/211:21:532
62642500,3sleep20-21swapper/211:21:532
6852994839,7cyclictest201rcuc/008:56:440
6852994839,7cyclictest201rcuc/008:56:440
6853994724,18cyclictest281ktimers/107:36:421
6853994724,18cyclictest281ktimers/107:36:421
19372470,3sleep01935-21irqstats09:46:470
6852994622,18cyclictest171ktimers/011:01:400
6852994622,18cyclictest171ktimers/011:01:400
685299452,5cyclictest171ktimers/009:41:440
685299448,25cyclictest55150irq/47-eth010:41:420
685299448,25cyclictest55150irq/47-eth010:41:420
685299444,6cyclictest171ktimers/011:11:420
685299444,6cyclictest171ktimers/011:11:420
135472440,3sleep3431rcuc/308:51:513
135472440,3sleep3431rcuc/308:51:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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