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2026-03-09 - 19:15

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 Mar 04, 2026 03:36:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10994997724,31cyclictest0-21swapper/002:30:470
10994997715,12cyclictest0-21swapper/003:26:060
10995997342,21cyclictest31313-21apt-get03:25:591
1099499723,17cyclictest18393-21/usr/sbin/munin02:51:080
10994997225,5cyclictest14809-21aten_rbpower_vo02:40:570
10995997134,24cyclictest17334-21swap02:46:111
10995997134,24cyclictest17334-21swap02:46:111
208922700,5sleep11099599cyclictest02:56:051
147142690,5sleep11099599cyclictest02:40:561
10994996829,6cyclictest7850irq/56-dwc_otg_03:10:570
1099499661,13cyclictest0-21swapper/002:45:550
1099499661,13cyclictest0-21swapper/002:45:550
10994996414,4cyclictest29834-21fschecks_time03:21:000
1099499633,40cyclictest23892-21/usr/sbin/munin03:06:070
10995996225,15cyclictest14449-21modprobe02:40:441
10995996129,15cyclictest30843-21chrt03:23:111
1099499602,55cyclictest0-21swapper/003:34:130
1099499602,55cyclictest0-21swapper/003:34:130
10995995827,11cyclictest128-21systemd-journal03:07:151
10995995824,15cyclictest29048-21taskset03:18:101
1099499585,11cyclictest7850irq/56-dwc_otg_03:20:440
10995995729,10cyclictest27356-21chrt03:15:101
1099499571,32cyclictest13176-21fschecks_time02:36:010
1099499571,18cyclictest0-21swapper/003:05:030
10995995526,12cyclictest23495-21taskset03:04:571
1099799548,25cyclictest7850irq/56-dwc_otg_02:30:473
10995995424,11cyclictest2083-21chrt03:34:061
10995995424,11cyclictest2083-21chrt03:34:061
10995995322,10cyclictest0-21swapper/102:51:301
104082532,11sleep00-21swapper/002:26:410
1099799521,5cyclictest27666-21/usr/sbin/munin03:16:123
1099799507,17cyclictest0-21swapper/303:05:563
10995994926,13cyclictest12769-21latency_hist02:35:451
1099799477,25cyclictest0-21swapper/303:30:573
1099799477,25cyclictest0-21swapper/303:30:573
1099499471,14cyclictest0-21swapper/002:57:050
1099699453,21cyclictest0-21swapper/202:30:462
10996994510,16cyclictest31629-21/usr/sbin/munin03:26:032
10996994310,25cyclictest0-21swapper/203:10:572
1099699414,24cyclictest0-21swapper/203:00:572
10996994127,6cyclictest7850irq/56-dwc_otg_03:06:152
1099699404,17cyclictest7950irq/56-dwc_otg_03:20:572
10996993914,11cyclictest14255-21chrt02:38:272
1099699384,26cyclictest0-21swapper/203:15:552
1099799371,24cyclictest15050-21ls02:41:003
1099699379,16cyclictest15424-21pluginstate02:41:072
1099699379,11cyclictest17530-21sed02:46:122
1099699379,11cyclictest17530-21sed02:46:122
1099799367,23cyclictest0-21swapper/303:00:573
1099799366,6cyclictest37-21rcuc/302:46:083
1099799366,6cyclictest37-21rcuc/302:46:083
91702358,11sleep30-21swapper/302:25:553
10996993524,4cyclictest7950irq/56-dwc_otg_02:51:002
1099699352,20cyclictest1876-21chrt03:31:252
1099699352,20cyclictest1876-21chrt03:31:252
1099799337,23cyclictest0-21swapper/303:25:593
1099799331,25cyclictest23582-20Xorg03:11:113
10997993310,14cyclictest0-21swapper/302:55:573
99022326,14sleep10-21swapper/102:26:091
1099799327,15cyclictest0-21swapper/302:35:573
1099699327,6cyclictest7750irq/56-dwc_otg02:56:112
1099799318,4cyclictest20031-21latency_hist02:55:443
10997993124,5cyclictest39-21ksoftirqd/303:25:443
103802284,16sleep20-21swapper/202:26:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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