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2025-04-03 - 15:47

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 Apr 03, 2025 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3169521250,3chrt0-21swapper/210:08:382
3169521250,3chrt0-21swapper/210:08:382
1590521210,3sleep20-21swapper/211:03:332
1590521210,3sleep20-21swapper/211:03:332
2136021180,3chrt0-21swapper/209:38:352
2136021180,3chrt0-21swapper/209:38:352
2319621060,2chrt23197-21fschecks_count08:08:341
2319621060,2chrt23197-21fschecks_count08:08:341
365121050,4chrt0-21swapper/207:18:182
365121050,4chrt0-21swapper/207:18:182
118892990,3chrt0-21swapper/210:48:372
118892990,3chrt0-21swapper/210:48:372
77792870,2sleep20-21swapper/207:28:272
77792870,2sleep20-21swapper/207:28:272
95682800,2sleep30-21swapper/310:43:323
95682800,2sleep30-21swapper/310:43:323
95682800,2sleep30-21swapper/310:43:323
285912730,3sleep00-21swapper/011:43:350
285912730,3sleep00-21swapper/011:43:350
62742700,3chrt0-21swapper/208:53:252
138662640,4sleep20-21swapper/207:43:352
138662640,4sleep20-21swapper/207:43:352
247452610,2sleep024924-21grep11:28:440
124652590,3chrt0-21swapper/107:38:471
105142590,1chrt0-21swapper/109:08:191
105142590,1chrt0-21swapper/109:08:191
3894995619,29cyclictest0-21swapper/010:58:310
389599552,43cyclictest6935-21taskset08:58:261
389599533,41cyclictest826-21cron10:18:271
389599533,41cyclictest826-21cron10:18:271
389599531,40cyclictest1067-21date10:18:271
229432510,2sleep022645-21apt-get08:08:260
229432510,2sleep022645-21apt-get08:08:260
3894994932,9cyclictest0-21swapper/009:59:500
3894994932,9cyclictest0-21swapper/009:59:500
177832490,3chrt17785-21fschecks_time11:08:341
177832490,3chrt17785-21fschecks_time11:08:341
177832490,3chrt17785-21fschecks_time11:08:341
89462480,3sleep30-21swapper/307:28:443
89462480,3sleep30-21swapper/307:28:443
389599482,38cyclictest6910-21sendmail-mta08:58:261
311512480,1chrt0-21swapper/110:08:331
311512480,1chrt0-21swapper/110:08:331
185312480,3chrt0-21swapper/109:28:331
185312480,3chrt0-21swapper/109:28:331
103012480,3sleep10-21swapper/107:33:371
103012480,3sleep10-21swapper/107:33:371
3895994722,18cyclictest281ktimers/111:23:291
3895994722,18cyclictest281ktimers/111:23:291
3894994734,8cyclictest27215-21apt-get09:58:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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