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2025-12-25 - 03:06

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 Dec 25, 2025 00:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1668522160,1sleep20-21swapper/219:08:552
250822830,2sleep00-21swapper/022:30:280
17051998212,53cyclictest762-21unixbench_singl00:20:340
1705199816,50cyclictest0-21swapper/020:35:210
17051998021,47cyclictest0-21swapper/023:25:230
17051997920,42cyclictest19404-21fschecks_count20:45:250
13812770,4sleep01375-21fschecks_count21:25:230
1705199767,45cyclictest5772-21grep23:05:330
1705199767,45cyclictest5772-21grep23:05:330
1705199749,62cyclictest1741-21wc19:55:330
1705199746,53cyclictest0-21swapper/023:55:350
1705199737,26cyclictest0-21swapper/000:25:120
1705199736,24cyclictest0-21swapper/023:30:220
17051997310,43cyclictest0-21swapper/019:45:220
1705199727,48cyclictest0-21swapper/022:05:240
1705199727,48cyclictest0-21swapper/022:05:240
1705199717,38cyclictest14007-21fschecks_count22:00:260
1705199717,38cyclictest14007-21fschecks_count22:00:260
1705199712,49cyclictest0-21swapper/000:10:370
1705299701,16cyclictest11730-21latency_hist21:55:081
1705199707,37cyclictest20033-21grep19:15:350
1705199707,37cyclictest20033-21grep19:15:350
17051997011,48cyclictest0-21swapper/022:35:190
1705599693,6cyclictest7850irq/56-dwc_otg_21:20:083
1705199698,42cyclictest0-21swapper/023:39:130
1705199697,49cyclictest0-21swapper/022:51:500
17051996922,26cyclictest0-21swapper/019:20:190
1705199691,47cyclictest4210-21sed23:00:360
1705299682,8cyclictest11876-21munin-run23:25:071
1705199689,38cyclictest3627-21ntpq21:30:300
17051996843,17cyclictest0-21swapper/000:35:190
1705399673,15cyclictest0-21swapper/222:25:192
1705599667,18cyclictest0-21swapper/323:25:283
1705199661,44cyclictest25964-21sed00:00:390
1705199661,39cyclictest0-21swapper/022:10:180
213312640,3sleep321325-21fschecks_time22:20:253
17055996413,40cyclictest7950irq/56-dwc_otg_21:55:083
1705199642,45cyclictest27236-21switchtime21:05:330
1705199639,41cyclictest0-21swapper/021:41:340
1705199639,40cyclictest20905-21basename23:50:080
1705199631,5cyclictest0-21swapper/023:40:200
1705199628,34cyclictest27661-21cron19:40:070
1705199627,45cyclictest0-21swapper/020:16:330
1705199622,32cyclictest11834-21latency_hist21:55:080
1705199621,25cyclictest0-21swapper/020:25:260
1705199616,41cyclictest25805-21taskset19:34:260
1705199615,42cyclictest0-21swapper/000:15:240
1705199612,37cyclictest22303-21grep23:50:360
1705199611,29cyclictest0-21swapper/020:05:210
17051996111,39cyclictest18137-21awk20:40:300
1705199609,40cyclictest24591-21latency_hist22:30:080
1705199602,29cyclictest0-21swapper/020:55:180
1705199601,29cyclictest0-21swapper/021:10:190
1705199601,29cyclictest0-21swapper/021:10:190
17051996010,36cyclictest32756-21head19:50:350
259252590,3sleep1221ktimersoftd/119:35:071
1705199598,30cyclictest20997-21/usr/sbin/munin22:20:250
1705199598,27cyclictest0-21swapper/022:45:280
1705199597,44cyclictest0-21swapper/021:17:150
1705199597,33cyclictest23586-21grep19:25:340
1705199591,42cyclictest0-21swapper/021:20:260
1705199591,41cyclictest0-21swapper/000:30:310
1705199591,38cyclictest6324-21sh21:40:070
1705599581,18cyclictest7950irq/56-dwc_otg_22:35:213
1705199587,28cyclictest18642-21sh19:15:080
1705199581,45cyclictest0-21swapper/020:11:200
1705199581,37cyclictest8607-21aten_rbpower_vo23:15:230
1705199579,36cyclictest0-21swapper/021:57:200
1705199579,25cyclictest0-21swapper/023:14:080
1705399567,28cyclictest0-21swapper/222:15:202
1705199561,40cyclictest10826-21cat23:20:270
1705199551,38cyclictest8890-21grep21:45:260
1705599547,28cyclictest0-21swapper/323:45:203
1705399547,24cyclictest0-21swapper/220:20:212
1705399541,2cyclictest0-21swapper/220:45:212
1705199549,22cyclictest0-21swapper/021:00:200
1705199548,32cyclictest22382-21chrt20:53:440
1705299535,9cyclictest7950irq/56-dwc_otg_19:15:201
1705299535,9cyclictest7950irq/56-dwc_otg_19:15:201
1705199537,9cyclictest0-21swapper/020:00:210
1705199533,39cyclictest0-21swapper/022:19:150
1705199526,35cyclictest28152-21chrt00:09:300
1705199526,35cyclictest28152-21chrt00:09:300
1705399515,10cyclictest0-21swapper/223:25:212
1705399513,4cyclictest0-21swapper/223:10:212
1705199513,39cyclictest0-21swapper/019:42:210
1705599507,24cyclictest0-21swapper/319:30:193
1705199507,32cyclictest2827-21taskset23:00:050
1705199502,34cyclictest0-21swapper/020:21:140
1705599497,28cyclictest0-21swapper/300:25:133
1705199486,12cyclictest15243-21chrt20:34:520
1705599477,22cyclictest0-21swapper/321:40:213
1705399477,25cyclictest0-21swapper/221:55:202
1705399477,25cyclictest0-21swapper/219:10:202
1705299477,27cyclictest0-21swapper/100:25:131
1705299477,26cyclictest0-21swapper/123:45:201
1705299471,33cyclictest7950irq/56-dwc_otg_20:30:231
1705199472,35cyclictest0-21swapper/022:43:320
1705399467,25cyclictest0-21swapper/223:40:212
1705399467,24cyclictest0-21swapper/219:50:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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