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2025-11-29 - 03:15

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 Fri Nov 28, 2025 12:43:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2066199988,74cyclictest0-21swapper/007:55:210
20661999755,25cyclictest0-21swapper/009:20:230
20661999755,25cyclictest0-21swapper/009:20:230
20661999427,24cyclictest977-21runrttasks07:45:210
133392900,2sleep20-21swapper/210:16:422
2066199831,50cyclictest0-21swapper/011:05:220
20664998024,37cyclictest25503-21idleruntime-cro10:35:092
2066199801,39cyclictest0-21swapper/011:35:210
326532790,3sleep337-21rcuc/309:58:443
2066199776,22cyclictest0-21swapper/012:05:250
2066499743,11cyclictest0-21swapper/207:10:122
2066399742,47cyclictest7750irq/56-dwc_otg10:00:211
2066499721,6cyclictest5528-21ps10:05:352
2066499721,6cyclictest5528-21ps10:05:352
2066199723,48cyclictest0-21swapper/011:00:230
20661997224,5cyclictest0-21swapper/010:50:240
20661997134,27cyclictest0-21swapper/007:25:220
196812710,1sleep00-21swapper/007:05:380
20661996822,4cyclictest0-21swapper/011:15:210
2066499676,47cyclictest0-21swapper/212:30:262
2066499676,47cyclictest0-21swapper/212:30:262
2066399663,43cyclictest7750irq/56-dwc_otg11:40:221
38012650,2sleep00-21swapper/009:15:370
276692650,2sleep30-21swapper/310:37:043
20661996560,3cyclictest0-21swapper/012:00:090
93092640,5sleep22066499cyclictest10:10:382
42012640,3sleep3381ktimersoftd/309:15:483
2066199637,53cyclictest0-21swapper/009:05:240
2066199631,18cyclictest7850irq/56-dwc_otg_08:50:230
2066199631,18cyclictest7850irq/56-dwc_otg_08:50:230
203282633,14sleep10-21swapper/107:09:241
2066599623,12cyclictest7750irq/56-dwc_otg11:25:253
20661996221,12cyclictest0-21swapper/008:45:200
2066499617,5cyclictest7950irq/56-dwc_otg_11:05:412
2066499611,16cyclictest0-21swapper/210:27:232
2066499611,16cyclictest0-21swapper/210:27:232
20661996130,14cyclictest7850irq/56-dwc_otg_10:20:090
2066199611,14cyclictest7950irq/56-dwc_otg_12:40:090
2066499605,10cyclictest7950irq/56-dwc_otg_09:20:282
2066499605,10cyclictest7950irq/56-dwc_otg_09:20:282
20664995917,32cyclictest7950irq/56-dwc_otg_10:03:112
2066399597,45cyclictest0-21swapper/108:50:231
2066399597,45cyclictest0-21swapper/108:50:231
2066399592,43cyclictest7750irq/56-dwc_otg10:45:231
2066199592,53cyclictest9-21ksoftirqd/010:10:390
2066199591,43cyclictest0-21swapper/011:50:280
2066499571,4cyclictest0-21swapper/212:08:072
20664995714,4cyclictest24074-21latency_hist07:20:102
2066499571,3cyclictest7750irq/56-dwc_otg12:15:372
2066199573,32cyclictest0-21swapper/007:10:120
20661995732,4cyclictest1310-21aten_rbpower_en10:00:240
2066499563,3cyclictest7950irq/56-dwc_otg_11:35:302
20664995616,37cyclictest3604-21ntp_offset09:15:342
2066499561,3cyclictest7850irq/56-dwc_otg_12:01:442
2066499561,10cyclictest0-21swapper/211:00:282
2066399562,28cyclictest7750irq/56-dwc_otg09:05:231
20661995634,5cyclictest9-21ksoftirqd/012:20:320
2066499554,5cyclictest140-21systemd-journal10:00:092
2066499554,4cyclictest7950irq/56-dwc_otg_09:52:052
2066499552,15cyclictest25614-21grep08:50:382
2066499552,15cyclictest25614-21grep08:50:382
2066499551,5cyclictest17566-21cut08:30:262
2066499551,15cyclictest0-21swapper/211:17:022
20664995511,4cyclictest31389-21latency_hist07:40:092
20663995511,23cyclictest20515-21ssh11:15:211
2066199558,26cyclictest13-21rcuc/009:30:250
20661995523,15cyclictest8469-21fschecks_count08:05:280
20661995523,15cyclictest8469-21fschecks_count08:05:280
20661995522,12cyclictest26712-21sh11:25:250
2066499545,5cyclictest7950irq/56-dwc_otg_09:38:402
2066499541,6cyclictest12204-21ssh11:50:332
2066499541,4cyclictest7850irq/56-dwc_otg_09:25:272
2066499541,3cyclictest7950irq/56-dwc_otg_09:31:032
2066499541,17cyclictest22562-21sshd08:45:102
20664995410,5cyclictest26782-21unixbench-2d12:10:372
2066199549,25cyclictest0-21swapper/007:30:230
20665995340,10cyclictest1120-21runrttasks08:35:183
2066499537,4cyclictest0-21swapper/212:35:252
2066499534,4cyclictest7850irq/56-dwc_otg_10:56:432
2066499534,4cyclictest7850irq/56-dwc_otg_10:56:432
2066499532,13cyclictest0-21swapper/211:30:552
2066499532,13cyclictest0-21swapper/211:30:552
2066499531,4cyclictest7750irq/56-dwc_otg07:25:272
2066499531,14cyclictest0-21swapper/208:25:382
20661995329,7cyclictest7850irq/56-dwc_otg_08:35:250
20661995326,5cyclictest16289-21switchtime08:25:340
2066199531,26cyclictest29502-21fschecks_count10:40:260
20661995310,14cyclictest0-21swapper/008:00:200
2066499523,8cyclictest0-21swapper/210:20:182
2066499521,5cyclictest26058-21diskstats10:35:242
2066499521,15cyclictest0-21swapper/212:26:422
2066399527,30cyclictest0-21swapper/107:55:211
20661995235,9cyclictest0-21swapper/007:35:230
20661995224,6cyclictest23593-21tail07:15:380
20661995213,22cyclictest9-21ksoftirqd/010:00:090
2066199521,27cyclictest18690-21cat10:25:100
2066499513,4cyclictest7750irq/56-dwc_otg11:13:152
2066499511,9cyclictest7950irq/56-dwc_otg_08:15:242
2066499511,5cyclictest1872-21ssh12:21:092
2066499511,4cyclictest442-21sshd07:41:472
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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