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2025-12-30 - 23:07

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #3

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 rack7slot3s.osadl.org (updated Tue Dec 30, 2025 12:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3179899836,22cyclictest0-21swapper/009:00:240
271872740,3sleep127186-21grep08:25:321
271872740,3sleep127186-21grep08:25:321
31798996710,22cyclictest0-21swapper/008:10:240
3179899657,35cyclictest16917-21grep09:25:390
3180199621,17cyclictest7950irq/56-dwc_otg_10:10:253
31798995731,4cyclictest0-21swapper/011:35:270
31798995626,28cyclictest101ktimersoftd/007:40:220
3179899552,30cyclictest20461-21sed08:05:430
31798995521,5cyclictest0-21swapper/012:35:210
31798995514,22cyclictest5421-21fschecks_count10:25:300
3179899551,33cyclictest28001-21grep11:25:380
31798995510,25cyclictest25209-21fschecks_count09:50:290
31798995510,25cyclictest25209-21fschecks_count09:50:290
3180099546,20cyclictest7950irq/56-dwc_otg_10:35:172
31798995430,14cyclictest0-21swapper/007:30:100
3179899542,25cyclictest0-21swapper/008:05:100
3180099535,6cyclictest0-21swapper/208:40:232
3179899532,37cyclictest0-21swapper/010:45:230
3179899531,48cyclictest0-21swapper/010:00:240
3180099523,9cyclictest0-21swapper/210:10:242
3179899522,29cyclictest0-21swapper/011:55:290
3179899522,14cyclictest0-21swapper/008:40:110
31798995221,3cyclictest0-21swapper/011:20:100
31798995128,7cyclictest7850irq/56-dwc_otg_09:30:390
31798995121,9cyclictest20602-21grep09:35:390
3179899511,30cyclictest4710-21idleruntime-cro08:55:100
3179899511,28cyclictest0-21swapper/010:30:280
3179899511,28cyclictest0-21swapper/010:30:280
31798995111,4cyclictest473-21unixbench_multi07:10:390
3180099504,19cyclictest7950irq/56-dwc_otg_09:10:362
3180099501,8cyclictest7850irq/56-dwc_otg_08:45:242
31798995024,17cyclictest9365-21ls10:35:300
3179899501,27cyclictest2256-21cat08:45:380
31798995011,22cyclictest11617-21wc12:10:390
3179999492,12cyclictest7750irq/56-dwc_otg12:20:231
31798994929,13cyclictest0-21swapper/012:15:330
31798994927,5cyclictest14306-21aten_rbpower_cu10:50:250
31798994926,5cyclictest0-21swapper/012:20:260
3179899492,31cyclictest0-21swapper/007:45:240
31798994922,8cyclictest10096-21cron09:10:100
31798994921,13cyclictest0-21swapper/010:10:280
3179899491,29cyclictest3634-21fschecks_time10:20:280
3180099487,25cyclictest0-21swapper/212:05:262
3180099487,25cyclictest0-21swapper/212:05:262
3180099486,25cyclictest0-21swapper/207:55:162
31798994823,5cyclictest23529-21missed_timers08:15:330
3179899482,25cyclictest0-21swapper/010:05:260
31798994821,5cyclictest15947-21fschecks_count07:55:270
31798994821,10cyclictest7950irq/56-dwc_otg_08:25:250
31798994821,10cyclictest7950irq/56-dwc_otg_08:25:250
3179899481,4cyclictest1644-21latency_hist11:45:110
3180099477,25cyclictest0-21swapper/212:00:252
3180099477,25cyclictest0-21swapper/212:00:252
3179899473,41cyclictest0-21swapper/012:00:220
3179899473,41cyclictest0-21swapper/012:00:220
31798994722,12cyclictest0-21swapper/010:40:280
31798994722,12cyclictest0-21swapper/008:30:350
31798994713,15cyclictest28781-21cut11:30:250
314122473,34sleep00-21swapper/007:08:470
3180099467,25cyclictest0-21swapper/211:50:252
3179899468,36cyclictest101ktimersoftd/007:51:190
31798994631,4cyclictest7750irq/56-dwc_otg12:30:250
31798994618,19cyclictest0-21swapper/009:22:460
3180199457,24cyclictest0-21swapper/312:20:253
3180099457,24cyclictest0-21swapper/212:25:252
3180099457,24cyclictest0-21swapper/207:10:242
3180099456,25cyclictest0-21swapper/209:45:152
31800994517,5cyclictest12778-21fschecks_count12:15:282
31799994520,13cyclictest16370-21fschecks_time10:55:291
3179999451,3cyclictest7850irq/56-dwc_otg_07:20:221
3179899455,19cyclictest13287-21sshd09:15:390
3179899455,19cyclictest13287-21sshd09:15:390
3179899452,21cyclictest0-21swapper/008:55:220
31798994522,14cyclictest23874-21/usr/sbin/munin09:45:340
31798994520,4cyclictest4436-21grep11:50:380
31798994520,4cyclictest26982-21/usr/sbin/munin09:55:270
31798994517,14cyclictest17306-21users12:25:400
3179899451,28cyclictest7719-21sed07:30:400
3179899451,28cyclictest32043-21cut08:40:260
3180099447,25cyclictest0-21swapper/212:35:242
31798994423,9cyclictest0-21swapper/010:15:300
3179899442,19cyclictest0-21swapper/007:35:280
31798994417,16cyclictest3211-21diskstats07:20:250
31798994413,23cyclictest0-21swapper/012:06:080
31798994413,23cyclictest0-21swapper/012:06:080
3180199437,22cyclictest0-21swapper/311:30:253
3180199436,24cyclictest0-21swapper/308:30:233
3179999437,23cyclictest0-21swapper/111:05:241
3179999437,22cyclictest0-21swapper/111:30:251
3179999436,4cyclictest0-21swapper/110:10:251
3179899436,24cyclictest0-21swapper/009:40:250
3180199427,24cyclictest0-21swapper/311:10:233
3180199427,23cyclictest0-21swapper/309:45:163
3180199427,23cyclictest0-21swapper/307:35:243
3180099427,22cyclictest0-21swapper/210:25:262
3180099426,21cyclictest0-21swapper/211:20:242
3180099421,7cyclictest0-21swapper/208:30:212
31799994213,6cyclictest23-21ksoftirqd/110:20:101
31798994220,16cyclictest10872-21latency09:10:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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