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2026-04-10 - 08:31

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 Apr 10, 2026 00:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
166721510,5sleep01054999cyclictest09:16:030
10549991101,72cyclictest0-21swapper/007:05:550
10549999825,60cyclictest7950irq/56-dwc_otg_07:20:410
1054999881,63cyclictest28896-21fschecks_count05:20:580
10549997913,3cyclictest7750irq/56-dwc_otg07:26:060
10549997839,6cyclictest7950irq/56-dwc_otg_08:20:530
10549997839,6cyclictest7950irq/56-dwc_otg_08:20:530
10549997712,50cyclictest307-21unixbench_singl08:36:110
10549997627,46cyclictest101ktimersoftd/005:55:540
1054999761,41cyclictest0-21swapper/005:40:510
10549997422,37cyclictest7850irq/56-dwc_otg_08:56:040
1054999738,12cyclictest0-21swapper/009:40:090
1054999732,54cyclictest0-21swapper/006:58:570
10549997318,6cyclictest7850irq/56-dwc_otg_08:11:080
10549997214,47cyclictest0-21swapper/007:39:590
10549997212,52cyclictest0-21swapper/009:35:340
7312710,2sleep30-21swapper/308:36:483
241072710,2sleep20-21swapper/207:11:002
241072710,2sleep20-21swapper/207:11:002
1054999716,45cyclictest0-21swapper/005:05:550
10549997125,34cyclictest7950irq/56-dwc_otg_09:52:280
1054999711,18cyclictest0-21swapper/009:26:040
1054999702,55cyclictest0-21swapper/007:31:080
10549996931,10cyclictest7950irq/56-dwc_otg_09:55:510
10549996914,4cyclictest7850irq/56-dwc_otg_07:51:050
10549996913,11cyclictest21346-21diskmemload09:04:330
10549996913,11cyclictest21346-21diskmemload09:04:330
10551996825,22cyclictest29964-21rm09:49:302
1054999679,3cyclictest0-21swapper/006:46:090
10549996714,9cyclictest908-21runrttasks04:46:050
10549996714,9cyclictest908-21runrttasks04:46:050
10549996711,45cyclictest0-21swapper/004:51:470
10549996711,35cyclictest0-21swapper/006:31:110
10549996614,6cyclictest0-21swapper/008:10:410
10549996614,4cyclictest27067-21fschecks_count05:15:580
1054999661,19cyclictest5141-21/usr/sbin/munin09:20:510
1054999658,5cyclictest30263-21/usr/sbin/munin06:41:080
1054999656,42cyclictest0-21swapper/004:35:540
1054999652,25cyclictest0-21swapper/009:10:110
10549996520,33cyclictest7950irq/56-dwc_otg_08:30:530
10549996512,5cyclictest7750irq/56-dwc_otg09:45:410
1054999651,19cyclictest0-21swapper/006:14:550
1054999651,19cyclictest0-21swapper/006:14:550
196912640,3sleep00-21swapper/007:43:470
10549996412,8cyclictest25134-21rm08:27:400
1054999641,18cyclictest0-21swapper/005:50:590
1054999641,12cyclictest0-21swapper/007:59:230
1054999632,50cyclictest0-21swapper/007:04:080
1054999632,18cyclictest0-21swapper/009:46:490
1054999632,18cyclictest0-21swapper/004:43:220
1054999631,20cyclictest0-21swapper/008:49:110
1054999631,16cyclictest0-21swapper/004:55:590
10551996227,14cyclictest22503-21/usr/sbin/munin06:31:062
10551996224,14cyclictest25794-21ssh07:50:592
10551996223,22cyclictest1128450rm08:50:152
10551996218,23cyclictest7850irq/56-dwc_otg_09:18:372
1054999622,57cyclictest0-21swapper/006:20:410
1054999622,18cyclictest0-21swapper/007:45:490
1054999622,15cyclictest9-21ksoftirqd/008:51:000
10549996212,10cyclictest0-21swapper/006:36:220
1054999621,17cyclictest5059-21rm08:41:510
1054999621,16cyclictest8861-21rm06:53:080
1054999621,15cyclictest29116-21aten_rbpower_cu09:10:560
1055099613,11cyclictest7750irq/56-dwc_otg08:35:531
1054999612,56cyclictest25577-21systemd-journal05:47:530
1055199609,18cyclictest0-21swapper/207:05:552
10551996026,13cyclictest694-21latency_hist09:15:412
10551996023,12cyclictest15048-21aten_rbpower_po07:00:552
1054999605,13cyclictest0-21swapper/007:21:100
1054999605,13cyclictest0-21swapper/007:21:100
1054999602,20cyclictest20833-21grep06:26:070
10549996017,30cyclictest12448-21latency_hist06:05:420
10549996014,8cyclictest7950irq/56-dwc_otg_07:12:240
10549996014,8cyclictest7950irq/56-dwc_otg_07:12:240
1054999601,18cyclictest0-21swapper/008:16:410
1055199596,32cyclictest0-21swapper/204:30:532
10551995926,12cyclictest5140-21ssh09:57:562
10551995925,18cyclictest4422-21ssh06:47:512
10551995924,19cyclictest15996-21ssh09:32:412
10551995924,11cyclictest23587-21ssh07:48:062
10551995922,13cyclictest8999-21aten_rbpower_en05:55:552
10551995917,12cyclictest31248-21ssh07:56:332
1054999591,50cyclictest26566-21runrttasks05:15:360
1054999591,19cyclictest0-21swapper/004:32:400
1054999591,14cyclictest0-21swapper/008:03:340
10551995825,13cyclictest19067-21ssh08:58:452
10551995825,13cyclictest16316-21/usr/sbin/munin04:45:582
10551995825,13cyclictest16316-21/usr/sbin/munin04:45:582
10551995823,22cyclictest15937-21ssh08:16:352
10551995823,11cyclictest10882-21ssh08:11:042
10551995721,21cyclictest8401-21ssh09:24:302
1054999576,10cyclictest0-21swapper/005:39:480
1054999572,18cyclictest0-21swapper/005:26:400
1054999571,12cyclictest0-21swapper/006:06:470
10551995625,17cyclictest32557-21sed08:36:092
10551995622,10cyclictest14404-21df04:40:552
10551995619,19cyclictest10689-21/usr/sbin/munin09:26:092
10551995617,18cyclictest7950irq/56-dwc_otg_09:35:522
10551995523,18cyclictest25051-21ssh08:27:322
10551995522,11cyclictest29703-21sh08:33:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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