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2025-12-16 - 14:59

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 Tue Dec 16, 2025 12:43:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
871299935,31cyclictest6863-21unixbench_multi10:03:190
871299882,52cyclictest1125-21runrttasks07:10:060
871299851,27cyclictest9106-21grep11:40:030
282792850,1sleep30-21swapper/308:03:183
871299801,41cyclictest0-21swapper/009:23:010
8712997826,27cyclictest0-21swapper/011:03:000
8712997821,47cyclictest1125-21runrttasks10:38:120
871499743,11cyclictest0-21swapper/207:10:062
75652720,2sleep10-21swapper/108:38:051
75652720,2sleep10-21swapper/108:38:051
871599686,20cyclictest0-21swapper/310:03:023
8712996829,5cyclictest14851-21aten_rbpower_en10:28:030
871299676,29cyclictest0-21swapper/009:53:030
8713996640,20cyclictest0-21swapper/107:10:061
871499652,12cyclictest23676-21/usr/sbin/munin09:23:192
8713996527,22cyclictest21871-21cat12:15:041
8713996523,20cyclictest26425-21ntpq12:28:111
871299658,34cyclictest0-21swapper/011:17:580
871299657,34cyclictest0-21swapper/007:40:100
871299657,34cyclictest0-21swapper/007:40:100
871499641,16cyclictest0-21swapper/208:43:002
8713996325,21cyclictest32181-21users11:13:181
8713996319,21cyclictest30786-21cut08:13:031
871399627,6cyclictest7750irq/56-dwc_otg10:03:001
871299626,32cyclictest23182-21latency_hist07:50:030
871299626,32cyclictest23182-21latency_hist07:50:030
871299621,9cyclictest14239-21wc08:55:040
8713996123,13cyclictest15726-21cron07:30:031
8713996118,21cyclictest7750irq/56-dwc_otg10:30:041
871299618,5cyclictest0-21swapper/011:47:590
8712996125,10cyclictest0-21swapper/012:08:010
871599605,10cyclictest0-21swapper/308:58:003
8714996015,35cyclictest7850irq/56-dwc_otg_10:03:172
871399608,23cyclictest0-21swapper/109:53:031
871299602,34cyclictest5579-21aten_rbpower_cu08:33:020
871499592,11cyclictest7950irq/56-dwc_otg_09:47:352
871499591,12cyclictest7950irq/56-dwc_otg_08:00:042
871499583,10cyclictest7950irq/56-dwc_otg_07:30:282
871499581,42cyclictest0-21swapper/212:34:032
8713995820,22cyclictest11313-21apt-get11:47:581
8713995818,15cyclictest0-21swapper/109:15:031
871299586,28cyclictest0-21swapper/010:58:020
871299581,33cyclictest22480-21ls09:18:100
871299581,33cyclictest22480-21ls09:18:100
871499572,47cyclictest0-21swapper/209:58:142
871499572,47cyclictest0-21swapper/209:58:142
8713995725,13cyclictest13618-21sed08:53:151
8713995725,12cyclictest26151-21ntpq09:28:101
8713995724,16cyclictest22106-21sshd12:17:441
8712995721,9cyclictest0-21swapper/010:13:020
871299572,10cyclictest7750irq/56-dwc_otg07:58:020
871299571,27cyclictest1455-21grep09:48:170
871499563,10cyclictest7950irq/56-dwc_otg_08:05:042
8713995621,11cyclictest7750irq/56-dwc_otg10:38:081
8713995619,10cyclictest28961-21apt-get08:08:011
871299569,25cyclictest0-21swapper/011:43:160
8712995615,25cyclictest1125-21runrttasks11:33:010
8712995615,25cyclictest1125-21runrttasks11:33:010
871299561,36cyclictest9025-21ls10:10:030
871599552,14cyclictest0-21swapper/311:58:013
871499551,4cyclictest0-21swapper/210:10:042
871499551,12cyclictest0-21swapper/208:18:332
871499551,11cyclictest7850irq/56-dwc_otg_08:13:092
8713995529,12cyclictest11996-21ls08:48:161
8713995522,20cyclictest23931-21/usr/sbin/munin12:23:131
8713995522,20cyclictest23931-21/usr/sbin/munin12:23:131
8713995521,19cyclictest4118-21/usr/sbin/munin09:58:031
8713995521,19cyclictest4118-21/usr/sbin/munin09:58:031
8713995521,11cyclictest18316-21fschecks_time07:38:061
8713995520,18cyclictest23688-21chrt10:51:481
8713995520,18cyclictest23688-21chrt10:51:481
8712995526,5cyclictest10279-21grep08:43:160
871299551,34cyclictest24624-21tail07:53:170
871499542,11cyclictest7950irq/56-dwc_otg_11:10:462
871499541,11cyclictest7950irq/56-dwc_otg_12:36:522
8713995423,12cyclictest23464-21taskset09:20:271
8713995422,16cyclictest1060-21cat08:18:161
8712995415,25cyclictest29464-21aten_rbpower_vo12:38:040
871299541,31cyclictest0-21swapper/007:28:020
871299541,29cyclictest24031-21aten_rbpower_po12:23:020
871299541,29cyclictest24031-21aten_rbpower_po12:23:020
8712995410,9cyclictest28471-21ls12:33:160
871499537,6cyclictest7850irq/56-dwc_otg_08:48:032
871499532,11cyclictest7950irq/56-dwc_otg_10:14:252
8714995318,31cyclictest25685-21seq09:28:032
8714995311,3cyclictest7850irq/56-dwc_otg_11:08:062
8713995323,12cyclictest16400-21df_inode07:33:041
8713995322,12cyclictest21302-21apt-get09:15:081
8713995322,12cyclictest21302-21apt-get09:15:081
871399532,14cyclictest0-21swapper/108:23:031
8713995321,13cyclictest13873-21chrt07:24:361
8712995335,4cyclictest20482-21cut10:43:060
871299532,34cyclictest0-21swapper/007:23:120
871299532,30cyclictest435-21cron10:50:040
871299531,47cyclictest11187-21grep08:48:060
871499523,9cyclictest7950irq/56-dwc_otg_09:36:242
871499521,9cyclictest3269-21tail11:23:172
871499521,8cyclictest0-21swapper/210:43:332
871499521,4cyclictest7950irq/56-dwc_otg_07:17:042
871499521,4cyclictest7950irq/56-dwc_otg_07:17:042
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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