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2026-06-05 - 23:44

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 Jun 04, 2026 00:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2214022100,3sleep10-21swapper/119:05:361
1434221040,2sleep10-21swapper/123:40:231
1846521020,8sleep32303899cyclictest21:00:293
1846521020,8sleep32303899cyclictest21:00:293
211832960,1sleep00-21swapper/021:50:340
171302820,5sleep02303599cyclictest00:22:210
42732780,6sleep22303799cyclictest23:27:402
309922750,2sleep00-21swapper/022:02:420
2303799726,26cyclictest21851-21ssh23:10:192
23036997121,42cyclictest27544-21/usr/sbin/munin21:20:281
2303699711,41cyclictest0-21swapper/100:40:081
23035997129,30cyclictest0-21swapper/023:10:190
27032700,5sleep12303699cyclictest22:07:421
269592700,2sleep20-21swapper/222:36:302
230492700,1sleep10-21swapper/100:30:111
2303699702,45cyclictest12435-21cat22:20:091
2303599709,44cyclictest0-21swapper/021:45:080
23035997020,6cyclictest0-21swapper/022:35:180
214342700,2sleep20-21swapper/222:30:262
2303699693,47cyclictest8050irq/56-dwc_otg_20:39:231
23035996932,5cyclictest0-21swapper/021:55:200
2303699685,47cyclictest13490-21ssh23:00:201
2303699672,47cyclictest5753-21rm00:09:131
2303599679,49cyclictest0-21swapper/023:55:180
2303599672,52cyclictest0-21swapper/023:50:090
2303699665,43cyclictest7950irq/56-dwc_otg_00:00:231
2303699664,37cyclictest8050irq/56-dwc_otg_20:50:251
2303599667,44cyclictest0-21swapper/000:37:250
2303699657,37cyclictest14507-21sed20:45:091
2303699657,12cyclictest0-21swapper/119:55:151
2303699651,46cyclictest16091-21sed00:20:371
2303599652,49cyclictest9935-21idleruntime-cro20:30:080
2303599651,53cyclictest26380-21latency_hist23:55:090
2303599651,53cyclictest26380-21latency_hist23:55:090
2303699632,40cyclictest0-21swapper/123:23:091
2303699631,4cyclictest28520-21/usr/sbin/munin22:00:271
2303599637,38cyclictest0-21swapper/020:50:180
2303599632,53cyclictest2250-21unixbench_singl22:45:360
23035996313,32cyclictest30863-21/usr/sbin/munin23:20:290
2303699623,5cyclictest28494-21rm22:39:191
2303699623,45cyclictest7950irq/56-dwc_otg_22:20:101
2303699622,52cyclictest24463-21rm23:51:471
2303699622,52cyclictest24463-21rm23:51:471
2303699621,4cyclictest8050irq/56-dwc_otg_20:20:091
2303699612,3cyclictest0-21swapper/122:52:031
2303699607,31cyclictest8050irq/56-dwc_otg_21:29:121
2303699604,37cyclictest7850irq/56-dwc_otg20:20:291
2303699602,41cyclictest28397-21latency_hist22:00:091
2303699601,49cyclictest20855-21ssh23:08:561
2303699601,41cyclictest0-21swapper/100:26:211
2303599604,46cyclictest0-21swapper/022:55:090
2303699592,40cyclictest5451-21rm21:31:291
2303699592,40cyclictest5451-21rm21:31:291
2303699592,35cyclictest0-21swapper/122:28:181
2303699591,4cyclictest24604-21ssh22:34:451
2303699591,39cyclictest22828-21ssh21:12:521
23035995930,5cyclictest7950irq/56-dwc_otg_20:35:080
2303599592,43cyclictest0-21swapper/019:20:320
2303699585,37cyclictest19911-21latency_hist21:10:081
2303699585,34cyclictest8050irq/56-dwc_otg_23:11:491
2303699584,42cyclictest8050irq/56-dwc_otg_22:49:541
2303699581,44cyclictest0-21swapper/121:46:271
2303699581,41cyclictest9439-21ssh23:34:351
2303699581,39cyclictest29369-21taskset19:33:431
2303599584,41cyclictest12295-21kworker/0:022:25:260
2303599582,43cyclictest0-21swapper/023:05:320
23035995817,6cyclictest7950irq/56-dwc_otg_21:36:440
23035995815,20cyclictest32133-21fschecks_count21:25:260
2303699572,40cyclictest0-21swapper/121:54:311
2303699571,42cyclictest8050irq/56-dwc_otg_23:37:521
2303699571,3cyclictest0-21swapper/123:46:191
23035995732,5cyclictest7950irq/56-dwc_otg_00:05:080
2303799564,19cyclictest24395-21ssh21:55:202
2303699567,38cyclictest8986-21ssh00:12:351
2303699564,36cyclictest19859-21diskmemload23:29:431
2303699563,3cyclictest7850irq/56-dwc_otg21:40:261
2303699561,4cyclictest28714-21rm23:57:001
2303699561,43cyclictest13990-21ssh00:19:111
2303699561,42cyclictest7954-21ssh22:14:431
2303699561,42cyclictest0-21swapper/120:12:091
2303699561,3cyclictest0-21swapper/121:35:361
2303699561,38cyclictest0-21swapper/122:40:321
287432550,1sleep20-21swapper/223:57:032
23036995515,37cyclictest26480-21sh21:18:491
2303699551,3cyclictest0-21swapper/119:19:491
2303699551,3cyclictest0-21swapper/119:19:491
2303599554,27cyclictest0-21swapper/023:35:210
2303699541,43cyclictest0-21swapper/123:19:091
2303699541,37cyclictest0-21swapper/119:44:221
2303599547,43cyclictest0-21swapper/020:10:210
23035995439,3cyclictest0-21swapper/019:30:220
2303699531,4cyclictest23029-21cyclictest19:10:091
2303599533,9cyclictest0-21swapper/021:30:180
2303599533,9cyclictest0-21swapper/021:30:180
2303599533,27cyclictest0-21swapper/022:15:090
23035995326,8cyclictest0-21swapper/022:20:210
23035995323,4cyclictest17318-21latency_hist23:05:080
2303599532,21cyclictest0-21swapper/021:10:220
23035995319,5cyclictest6344-21latency_hist00:10:090
2303599531,20cyclictest24864-21latency_hist22:35:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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