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2026-07-04 - 23:06

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 100 highest latencies:
System rack4slot1s.osadl.org (updated Sat Jul 04, 2026 12:44:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
747121420,2sleep17472-21cat09:13:261
211102850,3sleep30-21swapper/308:23:273
211102850,3sleep30-21swapper/308:23:273
211102850,3sleep30-21swapper/308:23:273
205832740,3sleep30-21swapper/309:48:253
205832740,3sleep30-21swapper/309:48:253
205832740,3sleep30-21swapper/309:48:253
71212720,3sleep30-21swapper/310:38:303
298082720,5sleep30-21swapper/308:48:113
68912700,1chrt0-21swapper/012:03:340
68912700,1chrt0-21swapper/012:03:340
188122650,3sleep20-21swapper/212:38:132
188122650,3sleep20-21swapper/212:38:132
152512630,2sleep30-21swapper/308:08:243
152512630,2sleep30-21swapper/308:08:243
152512630,2sleep30-21swapper/308:08:243
19532600,3sleep30-21swapper/307:33:223
11632560,4sleep00-21swapper/008:58:130
322992530,2chrt0-21swapper/007:28:130
322992530,2chrt0-21swapper/007:28:130
27067995327,6cyclictest11269-21idleruntime-cro12:18:121
27067995327,6cyclictest11269-21idleruntime-cro12:18:121
312892480,4sleep30-21swapper/311:43:273
312892480,4sleep30-21swapper/311:43:273
312892480,4sleep30-21swapper/311:43:273
96522440,1sleep00-21swapper/012:13:230
96522440,1sleep00-21swapper/012:13:230
27067994338,3cyclictest8088-21idleruntime-cro10:43:111
31742410,3sleep30-21swapper/307:33:343
31742410,3sleep30-21swapper/307:33:343
31742410,3sleep30-21swapper/307:33:343
48302380,3sleep30-21swapper/307:38:343
48302380,3sleep30-21swapper/307:38:343
48302380,3sleep30-21swapper/307:38:343
27065993828,8cyclictest550-21cron08:13:110
27065993828,8cyclictest550-21cron08:13:110
27065993828,8cyclictest550-21cron08:13:110
250122380,2sleep20-21swapper/208:33:272
250122380,2sleep20-21swapper/208:33:272
248942370,2sleep20-21swapper/209:58:342
248942370,2sleep20-21swapper/209:58:342
248942370,2sleep20-21swapper/209:58:342
239952370,1sleep024002-21needreboot11:23:310
239952370,1sleep024002-21needreboot11:23:310
239952370,1sleep024002-21needreboot11:23:310
114102370,1sleep00-21swapper/007:58:240
114102370,1sleep00-21swapper/007:58:240
280332360,3sleep30-21swapper/311:33:353
280332360,3sleep30-21swapper/311:33:353
189612350,2sleep118965-21sed11:08:351
189612350,2sleep118965-21sed11:08:351
189612350,2sleep118965-21sed11:08:351
86682340,4sleep07694-21/usr/sbin/munin12:08:320
27067993426,6cyclictest25537-21idleruntime-cro10:03:121
27067993426,6cyclictest25537-21idleruntime-cro10:03:121
27067993426,6cyclictest25537-21idleruntime-cro10:03:121
27065993428,4cyclictest24701-21gltestperf08:33:240
27065993428,4cyclictest24701-21gltestperf08:33:240
27065993424,7cyclictest2350-21latency_hist11:53:250
27067993327,4cyclictest582-21gltestperf11:48:261
27067993327,4cyclictest582-21gltestperf11:48:261
27067993327,4cyclictest582-21gltestperf11:48:261
27067993325,6cyclictest27040-21cyclictest09:03:291
27067993325,6cyclictest27040-21cyclictest09:03:291
27067993323,7cyclictest4278-21kernelversion07:38:261
27067993323,7cyclictest4278-21kernelversion07:38:261
27067993323,7cyclictest4278-21kernelversion07:38:261
27065993326,5cyclictest5630-21latency_hist12:03:110
27065993326,5cyclictest5630-21latency_hist12:03:110
53562320,1sleep30-21swapper/311:59:433
53562320,1sleep30-21swapper/311:59:433
27067993223,7cyclictest15171-21latency_hist12:28:191
27067993223,7cyclictest15171-21latency_hist12:28:191
27065993225,5cyclictest10122-21needreboot07:53:280
27065993225,5cyclictest10122-21needreboot07:53:280
27067993123,6cyclictest19603-21proc_pri08:18:321
27067993123,6cyclictest19603-21proc_pri08:18:321
27067993122,7cyclictest28210-21unixbench-2d11:33:351
27067993122,7cyclictest28210-21unixbench-2d11:33:351
27067993023,5cyclictest14678-21systemd-journal08:32:541
27067993023,5cyclictest14678-21systemd-journal08:32:541
27067993023,5cyclictest14678-21systemd-journal08:32:541
27065993024,5cyclictest19166-21gltestperf08:18:250
27065993024,5cyclictest19166-21gltestperf08:18:250
27065993023,5cyclictest550-21cron12:13:230
27065993023,5cyclictest550-21cron12:13:230
27065993022,6cyclictest29678-21cut10:13:240
27065993022,6cyclictest29678-21cut10:13:240
27065993022,6cyclictest24200-21idleruntime-cro08:33:110
27065993022,6cyclictest24200-21idleruntime-cro08:33:110
27065993022,6cyclictest24200-21idleruntime-cro08:33:110
27065993021,7cyclictest29949-21latency_hist08:48:180
2706899291,11cyclictest8484-21chrt12:08:302
2706899291,11cyclictest8484-21chrt12:08:302
2706899291,11cyclictest8484-21chrt12:08:302
27067992923,5cyclictest20816-21unixbench_singl11:13:351
27067992923,5cyclictest20816-21unixbench_singl11:13:351
27065992924,3cyclictest0-21swapper/012:23:110
27065992924,3cyclictest0-21swapper/012:23:110
27065992924,3cyclictest0-21swapper/012:23:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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