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2026-05-06 - 16:24

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 Wed May 06, 2026 12:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13843210200,6sleep20-21swapper/216:26:132
1520899883,49cyclictest0-21swapper/021:01:080
204692840,3sleep00-21swapper/020:20:550
15208998322,38cyclictest0-21swapper/016:51:080
134092823,7sleep00-21swapper/016:26:080
1520899814,64cyclictest0-21swapper/017:56:080
1520899814,64cyclictest0-21swapper/017:56:080
15208998021,35cyclictest7850irq/56-dwc_otg_19:51:200
15208997925,41cyclictest20655-21latency_hist18:15:550
1520899776,54cyclictest0-21swapper/017:46:060
1520899771,71cyclictest23755-21latency19:06:140
1520899761,20cyclictest13050-21ssh20:51:050
1520899761,13cyclictest12681-21rm18:52:300
1520899757,50cyclictest0-21swapper/019:31:180
1520899751,55cyclictest14868-21ssh21:31:190
168422740,2sleep20-21swapper/220:55:522
15208997223,32cyclictest7850irq/56-dwc_otg_20:00:170
15208997214,49cyclictest15816-21missed_timers16:31:160
7242710,3sleep337-21rcuc/318:38:363
7242710,3sleep337-21rcuc/318:38:363
15211997141,8cyclictest10002-21apt-get17:46:063
15208997127,30cyclictest7750irq/56-dwc_otg20:45:560
15208997127,30cyclictest7750irq/56-dwc_otg20:45:560
1520899712,6cyclictest8953-21aten_rbpower_cu20:46:070
1520899712,20cyclictest0-21swapper/018:43:220
1520899711,20cyclictest24639-21sh20:25:570
281142690,5sleep226001-21diskmemload21:08:202
15211996927,26cyclictest22625-21/usr/sbin/munin18:21:223
1520899697,49cyclictest0-21swapper/018:46:160
1520899697,33cyclictest0-21swapper/018:21:080
1520899682,6cyclictest30296-21ssh21:50:540
1520899681,60cyclictest0-21swapper/017:10:550
1520899681,12cyclictest0-21swapper/020:34:420
1520899681,11cyclictest0-21swapper/018:38:100
1520899681,11cyclictest0-21swapper/018:38:100
282162670,5sleep31521199cyclictest18:32:203
15211996725,25cyclictest24900-21/usr/sbin/munin19:46:183
1520899678,5cyclictest12402-21/usr/sbin/munin17:51:160
15208996713,11cyclictest32185-21taskset17:16:160
15208996710,13cyclictest25142-21grep19:46:200
15211996624,20cyclictest8941-21ntpq20:06:193
15208996612,12cyclictest0-21swapper/018:35:270
1520899661,16cyclictest0-21swapper/018:16:140
15211996526,19cyclictest31370-21ssh19:54:513
1520899654,7cyclictest9450irq/48-DMA09:12:250
1520899654,15cyclictest25577-21systemd-journal17:04:440
1520899651,60cyclictest19149-21ssh19:40:170
1520899651,21cyclictest0-21swapper/019:15:020
15208996512,11cyclictest396-21chrt21:14:260
15208996512,11cyclictest396-21chrt21:14:260
15208996512,10cyclictest4936-21ssh21:20:050
1520899651,15cyclictest917-21snmpd21:45:410
43562640,1sleep30-21swapper/320:01:133
15211996429,11cyclictest8902-21apt-get20:46:063
15211996420,24cyclictest7950irq/56-dwc_otg_17:16:143
1520899642,59cyclictest0-21swapper/019:17:320
1520899642,59cyclictest0-21swapper/019:17:320
15208996418,7cyclictest7850irq/56-dwc_otg_21:56:340
15208996411,6cyclictest7750irq/56-dwc_otg21:51:200
1520899641,16cyclictest0-21swapper/021:06:130
15211996324,13cyclictest483650ssh21:19:543
15208996316,37cyclictest0-21swapper/020:06:220
1520899631,15cyclictest0-21swapper/017:11:140
1520899622,30cyclictest7356-21ssh19:26:040
1520899621,5cyclictest0-21swapper/019:45:560
1520899621,13cyclictest0-21swapper/019:24:410
15211996131,17cyclictest12001-21/usr/sbin/munin17:51:093
15211996125,23cyclictest787-21taskset21:53:433
15211996123,11cyclictest8289-21smartpower19:26:193
15211996122,19cyclictest19138-21ssh19:40:163
1520899619,10cyclictest6531-21ssh21:21:190
1520899611,15cyclictest0-21swapper/017:26:570
15211996030,17cyclictest27801-21users21:46:233
1521199602,15cyclictest0-21swapper/320:56:073
1520899603,18cyclictest0-21swapper/019:03:490
1520899601,17cyclictest12263-21/usr/sbin/munin20:11:230
1520899601,16cyclictest0-21swapper/020:57:180
15208996010,2cyclictest0-21swapper/018:56:230
15211995932,11cyclictest25782-21aten_rbpower_en21:06:093
15211995927,8cyclictest24400-21munin-run20:25:543
15211995925,14cyclictest7750irq/56-dwc_otg21:31:163
15211995920,25cyclictest14911-21rm19:35:113
1520899591,19cyclictest0-21swapper/021:36:550
15211995831,11cyclictest15224-21/usr/sbin/munin16:31:143
15211995828,8cyclictest29723-21aten_rbpower_en17:11:083
15211995827,12cyclictest6918-21rm20:42:543
15211995827,12cyclictest6918-21rm20:42:543
15211995824,14cyclictest8193-21ssh21:23:283
15208995819,4cyclictest4011-21ssh20:40:100
1520899581,14cyclictest0-21swapper/020:21:010
15211995732,8cyclictest23206-21ssh19:06:063
15211995727,18cyclictest2517-21ssh19:20:163
15211995727,18cyclictest2517-21ssh19:20:163
15211995726,11cyclictest2267-21taskset17:24:073
15211995726,11cyclictest2267-21taskset17:24:073
15211995724,12cyclictest23763-21latency_hist19:45:553
15211995724,12cyclictest16186-21sh20:54:413
15211995722,22cyclictest3663-21/usr/sbin/munin18:41:233
1520899571,16cyclictest6277-21sh20:03:070
1520899571,15cyclictest13084-21ssh21:29:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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