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2025-07-04 - 02:17

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 Thu Jul 03, 2025 12:43:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2301621070,6sleep13004599cyclictest11:03:421
2977229952,11sleep0101ktimersoftd/007:10:110
3004599947,39cyclictest0-21swapper/107:50:251
197262910,4sleep219711-21ssh12:25:402
223412820,4sleep322328-21timerandwakeup10:15:463
30044997748,14cyclictest7850irq/56-dwc_otg10:50:260
30044997748,14cyclictest7850irq/56-dwc_otg10:50:260
188222740,1sleep30-21swapper/312:25:293
3004599723,7cyclictest0-21swapper/110:25:271
30044997152,5cyclictest7950irq/56-dwc_otg_08:55:120
3004499706,53cyclictest0-21swapper/010:20:270
30044997035,4cyclictest8050irq/56-dwc_otg_10:00:240
302042690,3sleep130194-21munin-run08:40:111
3004599693,24cyclictest0-21swapper/110:20:271
3004499693,29cyclictest0-21swapper/007:15:230
3004499692,37cyclictest0-21swapper/010:10:240
30044996839,9cyclictest0-21swapper/008:30:220
3004599676,22cyclictest7850irq/56-dwc_otg08:40:251
30044996740,7cyclictest7950irq/56-dwc_otg_11:15:110
3004499661,46cyclictest0-21swapper/011:35:300
3004699656,11cyclictest7850irq/56-dwc_otg09:20:242
3004499653,48cyclictest0-21swapper/008:15:220
164032650,5sleep13004599cyclictest09:20:321
3004499632,42cyclictest29478-21grep09:40:470
3004499631,35cyclictest10206-21apt12:15:110
3004799626,21cyclictest381ktimersoftd/309:55:243
3004699602,18cyclictest8050irq/56-dwc_otg_11:55:262
30044996033,4cyclictest8050irq/56-dwc_otg_12:25:220
132662600,31sleep013-21rcuc/007:50:390
3004499596,32cyclictest0-21swapper/007:45:120
3004499596,32cyclictest0-21swapper/007:45:120
3004499592,47cyclictest0-21swapper/010:40:410
30044995819,22cyclictest16994-21sh09:20:400
3004499573,14cyclictest26458-21ntp_kernel_err09:35:400
3004499572,46cyclictest12765-21fschecks_time09:15:300
3004499572,29cyclictest21982-21gpgv09:30:120
3004499571,42cyclictest0-21swapper/008:40:280
23872570,2sleep32388-21unixbench_singl07:20:393
3004499561,37cyclictest3821-21unixbench_singl12:05:450
3004499561,36cyclictest0-21swapper/007:25:250
179222560,2sleep2301ktimersoftd/211:41:112
3004599557,10cyclictest7950irq/56-dwc_otg_11:45:251
30044995533,4cyclictest7950irq/56-dwc_otg_10:05:250
30044995527,13cyclictest8050irq/56-dwc_otg_07:20:260
3004499552,45cyclictest0-21swapper/011:50:400
30044995518,25cyclictest2215-21idleruntime-cro12:05:120
3004499551,45cyclictest27057-21grep12:35:280
30045995414,25cyclictest0-21swapper/108:05:261
30044995421,15cyclictest10296-21wc11:30:400
3004699531,7cyclictest0-21swapper/210:40:242
30044995332,6cyclictest7850irq/56-dwc_otg10:00:010
3004499532,4cyclictest0-21swapper/008:35:410
3004499532,42cyclictest14900-21fschecks_time12:20:320
30044995323,7cyclictest2268-21sh11:20:260
3004499521,7cyclictest5367-21cut09:00:260
3004599515,32cyclictest7850irq/56-dwc_otg08:50:281
3004599511,33cyclictest0-21swapper/110:10:121
3004499515,5cyclictest0-21swapper/008:00:380
3004499512,29cyclictest0-21swapper/011:15:490
3004499512,29cyclictest0-21swapper/011:15:490
30044995117,5cyclictest2953-21awk10:35:110
3004499511,25cyclictest24132-21sh11:05:290
3004799502,11cyclictest8050irq/56-dwc_otg_08:30:243
3004599504,9cyclictest4750irq/17-3f00b88008:00:211
30044995028,13cyclictest20155-21ntp_kernel_pll_08:10:340
3004499502,24cyclictest0-21swapper/010:45:340
30044995021,5cyclictest0-21swapper/011:00:120
30044995019,10cyclictest0-21swapper/009:30:240
3004499501,39cyclictest4870-21chrt07:30:260
3004499501,33cyclictest955-21runrttasks10:39:050
3004499501,25cyclictest20111-21aten_rbpower_vo11:45:270
3004699493,4cyclictest8050irq/56-dwc_otg_08:35:252
30046994922,5cyclictest21623-21sh10:15:362
3004699491,29cyclictest27815-21ls08:30:382
30045994918,5cyclictest23967-21unixbench_multi12:30:431
30044994927,5cyclictest7950irq/56-dwc_otg_11:00:390
3004499492,24cyclictest0-21swapper/010:25:280
30044994921,5cyclictest17701-21unixbench_singl11:40:420
3004499491,6cyclictest23512-21ntpq12:30:380
3004499491,17cyclictest17903-21grep08:05:300
232262490,2sleep023228-21ssh10:17:130
3004699483,6cyclictest0-21swapper/209:05:222
3004599488,25cyclictest0-21swapper/109:25:171
30045994824,4cyclictest16421-21/usr/sbin/munin11:40:241
3004499482,37cyclictest0-21swapper/007:35:320
30044994822,14cyclictest0-21swapper/009:08:350
30044994822,12cyclictest14610-21ls07:55:340
3004599477,26cyclictest0-21swapper/109:10:271
30045994716,15cyclictest19490-21sshd08:10:231
3004599471,4cyclictest0-21swapper/111:20:431
30044994724,4cyclictest60-21kswapd007:45:180
3004499472,20cyclictest0-21swapper/009:50:320
3004499472,20cyclictest0-21swapper/009:50:320
3004799467,24cyclictest0-21swapper/307:35:273
3004599467,24cyclictest0-21swapper/112:35:241
3004499461,33cyclictest516-21munin-node07:10:230
3004499461,32cyclictest7531-21ssh11:26:200
3004799459,6cyclictest39-21ksoftirqd/308:10:123
3004599458,24cyclictest7850irq/56-dwc_otg11:05:251
3004599457,25cyclictest0-21swapper/108:55:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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