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2026-07-13 - 23:05

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 Mon Jul 13, 2026 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41721300,3sleep30-21swapper/308:18:363
41721300,3sleep30-21swapper/308:18:363
886621290,4sleep20-21swapper/211:33:362
886621290,4sleep20-21swapper/211:33:362
886621290,4sleep20-21swapper/211:33:362
2337121030,3chrt0-21swapper/312:13:333
2337121030,3chrt0-21swapper/312:13:333
2337121030,3chrt0-21swapper/312:13:333
249602910,3sleep20-21swapper/209:23:362
249602910,3sleep20-21swapper/209:23:362
249602910,3sleep20-21swapper/209:23:362
305102810,3chrt0-21swapper/109:38:341
305102810,3chrt0-21swapper/109:38:341
305102810,3chrt0-21swapper/109:38:341
320142720,3sleep20-21swapper/209:43:342
320142720,3sleep20-21swapper/209:43:342
87822560,3sleep08559-21latency_hist10:08:320
242252560,2chrt0-21swapper/109:23:231
18162520,2sleep11818-21latency09:48:351
18162520,2sleep11818-21latency09:48:351
18162520,2sleep11818-21latency09:48:351
33082500,4sleep20-21swapper/211:18:412
33082500,4sleep20-21swapper/211:18:412
292152500,3sleep20-21swapper/211:03:212
292152500,3sleep20-21swapper/211:03:212
292152500,3sleep20-21swapper/211:03:212
84932480,4sleep20-21swapper/208:38:422
84932480,4sleep20-21swapper/208:38:422
832999471,31cyclictest29188-21taskset11:03:190
832999471,31cyclictest29188-21taskset11:03:190
832999471,31cyclictest29188-21taskset11:03:190
832999451,28cyclictest30177-21taskset12:29:460
832999451,28cyclictest30177-21taskset12:29:460
272552450,2sleep20-21swapper/208:03:362
272552450,2sleep20-21swapper/208:03:362
272552450,2sleep20-21swapper/208:03:362
832999441,28cyclictest1516-21chrt12:40:240
832999441,27cyclictest4833-21seq09:58:230
832999441,27cyclictest4833-21seq09:58:230
832999441,27cyclictest4833-21seq09:58:230
832999441,27cyclictest24041-21chrt09:22:170
832999441,27cyclictest18435-21taskset09:07:130
832999441,27cyclictest18435-21taskset09:07:130
832999441,27cyclictest18435-21taskset09:07:130
832999441,26cyclictest3209-21seq08:24:400
832999441,26cyclictest3209-21seq08:24:400
248352440,4sleep024837-21cat10:48:440
248352440,4sleep024837-21cat10:48:440
248352440,4sleep024837-21cat10:48:440
203532440,2sleep20-21swapper/212:03:392
203532440,2sleep20-21swapper/212:03:392
203532440,2sleep20-21swapper/212:03:392
832999431,29cyclictest10361-21taskset10:12:140
832999431,28cyclictest6316-21taskset09:58:470
832999431,28cyclictest6316-21taskset09:58:470
832999431,28cyclictest28336-21chrt12:25:040
832999431,28cyclictest28336-21chrt12:25:040
832999431,28cyclictest28336-21chrt12:25:040
832999431,28cyclictest24552-21taskset12:14:390
832999431,28cyclictest24552-21taskset12:14:390
832999431,28cyclictest24552-21taskset12:14:390
832999431,28cyclictest22680-21chrt12:09:320
832999431,28cyclictest22680-21chrt12:09:320
832999431,28cyclictest22680-21chrt12:09:320
832999431,28cyclictest16562-21seq09:02:230
832999431,28cyclictest16562-21seq09:02:230
832999431,28cyclictest16562-21seq09:02:230
832999431,27cyclictest2160-21taskset11:16:100
832999431,27cyclictest2160-21taskset11:16:100
832999431,27cyclictest1526-21taskset08:22:230
832999431,27cyclictest1526-21taskset08:22:230
832999431,26cyclictest700-21192.168.115.40-manager07:36:150
832999431,26cyclictest700-21192.168.115.40-manager07:36:150
832999431,26cyclictest700-21192.168.115.40-manager07:36:150
832999431,26cyclictest30692-21seq11:04:000
832999431,26cyclictest30692-21seq11:04:000
832999431,26cyclictest20959-21seq12:06:230
832999431,26cyclictest20959-21seq12:06:230
832999431,26cyclictest20959-21seq12:06:230
832999421,28cyclictest29465-21seq09:34:550
832999421,28cyclictest29465-21seq09:34:550
832999421,28cyclictest12049-21seq10:14:590
832999421,28cyclictest12049-21seq10:14:590
832999421,27cyclictest28267-21chrt08:06:110
832999421,27cyclictest28267-21chrt08:06:110
832999421,27cyclictest28267-21chrt08:06:110
832999421,27cyclictest28267-21chrt08:06:110
832999421,26cyclictest22237-21taskset09:18:070
832999421,26cyclictest22237-21taskset09:18:070
832999421,25cyclictest26265-21chrt07:59:400
832999421,25cyclictest26265-21chrt07:59:400
832999421,25cyclictest26265-21chrt07:59:400
832999421,24cyclictest22484-21chrt07:48:540
832999421,24cyclictest22484-21chrt07:48:540
832999421,24cyclictest22484-21chrt07:48:540
832999421,24cyclictest15967-21chrt10:26:450
832999421,24cyclictest15967-21chrt10:26:450
832999421,24cyclictest15967-21chrt10:26:450
832999420,40cyclictest700-21192.168.115.40-manager11:23:520
832999420,40cyclictest700-21192.168.115.40-manager11:23:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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