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2026-04-16 - 23:59

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #4

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.
Unexpectedly long latencies may be caused by SMIs
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 rack8slot4s.osadl.org (updated Thu Apr 16, 2026 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18265902235196,25sleep30-21swapper/307:09:563
18265422230173,45sleep60-21swapper/607:09:196
18264152230165,21sleep00-21swapper/007:07:280
18263602218180,24sleep10-21swapper/107:06:411
18263102216183,21sleep70-21swapper/707:05:587
18264012212178,22sleep40-21swapper/407:07:174
18263702211178,21sleep20-21swapper/207:06:502
18265782208177,20sleep50-21swapper/507:09:515
1826981992720,6cyclictest1914212-21cron09:40:016
1826981992720,6cyclictest1914212-21cron09:40:006
182698199270,26cyclictest363-21systemd-journal12:04:596
182698199270,21cyclictest0-21swapper/610:25:126
182698499269,4cyclictest0-21swapper/712:20:037
182698499269,4cyclictest0-21swapper/711:58:057
182698499269,4cyclictest0-21swapper/710:30:137
182698499269,4cyclictest0-21swapper/708:51:237
182698499258,4cyclictest0-21swapper/710:41:127
182698499258,4cyclictest0-21swapper/709:02:217
182698499258,0cyclictest0-21swapper/712:09:057
182698199240,23cyclictest1969188-21apt-get11:15:116
182698199240,21cyclictest1885554-21apt-get08:50:126
182698199240,0cyclictest0-21swapper/611:45:136
182697699240,23cyclictest0-21swapper/510:25:125
1826970992421,2cyclictest1914235-21awk09:40:004
1826970992421,2cyclictest1914235-21awk09:40:004
182697099240,23cyclictest1859585-21apt-get08:05:134
1826966992420,4cyclictest0-21swapper/208:05:182
1826966992420,3cyclictest0-21swapper/211:20:132
182696699240,23cyclictest0-21swapper/209:15:022
182696299240,23cyclictest2011912-21sleep12:30:001
1826960992421,2cyclictest0-21swapper/007:25:000
182696099240,23cyclictest1928782-21awk10:05:000
182698499230,22cyclictest0-21swapper/711:45:137
182698499230,22cyclictest0-21swapper/709:30:117
1826981992319,3cyclictest1972066-21apt-get11:20:146
182698199230,22cyclictest1948758-21idleruntime-cro10:40:006
182698199230,22cyclictest1841981-21munin-run07:35:016
182698199230,22cyclictest0-21swapper/609:30:016
182698199230,1cyclictest1856293-21munin-run08:00:006
1826976992321,1cyclictest1826612-21apt-get07:10:005
182697699230,22cyclictest1965920-21munin-run11:10:005
182697099230,2cyclictest1879426-21basename08:40:014
182697099230,22cyclictest1891274-21apt-get09:00:104
1826967992322,1cyclictest0-21swapper/311:50:123
182696799231,22cyclictest0-21swapper/312:05:003
182696799230,22cyclictest1949206-21apt-get10:40:113
182696799230,22cyclictest0-21swapper/308:15:013
1826966992320,3cyclictest1937345-21perf10:20:012
1826966992320,3cyclictest0-21swapper/209:55:112
182696699230,22cyclictest0-21swapper/209:00:092
182696699230,1cyclictest1940210-21munin-run10:25:002
182696299230,0cyclictest0-21swapper/111:40:141
1826960992321,1cyclictest1946334-21apt-get10:35:130
182698499229,0cyclictest0-21swapper/711:14:097
182698499229,0cyclictest0-21swapper/710:52:127
182698499229,0cyclictest0-21swapper/710:19:147
182698499229,0cyclictest0-21swapper/709:35:197
182698499229,0cyclictest0-21swapper/709:35:197
182698499229,0cyclictest0-21swapper/709:24:207
1826984992220,1cyclictest1859154-21apt08:05:017
182698499220,21cyclictest1865547-21apt-get08:15:127
182698499220,21cyclictest0-21swapper/711:15:137
182698499220,21cyclictest0-21swapper/709:25:117
182698499220,21cyclictest0-21swapper/709:25:117
182698499220,21cyclictest0-21swapper/708:25:007
182698499220,1cyclictest1862697-21apt-get08:10:117
1826981992220,1cyclictest1957762-21apt-get10:55:146
1826981992220,1cyclictest0-21swapper/610:50:146
182698199220,21cyclictest0-21swapper/612:25:106
182698199220,21cyclictest0-21swapper/611:30:116
182698199220,21cyclictest0-21swapper/611:00:136
182698199220,21cyclictest0-21swapper/610:20:116
182698199220,21cyclictest0-21swapper/607:20:106
182698199220,1cyclictest1983756-21apt-get11:40:136
182698199220,0cyclictest0-21swapper/609:55:126
1826976992219,2cyclictest1911356-21turbostat.cron09:35:005
182697699220,21cyclictest2009465-21apt-get12:25:095
182697699220,21cyclictest0-21swapper/510:35:135
182697699220,1cyclictest0-21swapper/511:40:135
182697699220,1cyclictest0-21swapper/509:05:015
1826970992222,0cyclictest0-21swapper/407:20:004
1826970992222,0cyclictest0-21swapper/407:10:014
182697099220,22cyclictest1954496-21perf10:50:004
182697099220,21cyclictest0-21swapper/409:20:114
182697099220,21cyclictest0-21swapper/408:55:114
182697099220,21cyclictest0-21swapper/408:45:124
182697099220,21cyclictest0-21swapper/408:40:124
182697099220,1cyclictest0-21swapper/409:30:014
182697099220,1cyclictest0-21swapper/409:30:014
182697099220,1cyclictest0-21swapper/408:05:004
182696799220,21cyclictest1960635-21apt-get11:00:133
182696799220,21cyclictest1843690-21ntpq07:35:193
182696799220,21cyclictest0-21swapper/310:55:133
1826966992221,1cyclictest0-21swapper/209:15:012
1826966992220,1cyclictest0-21swapper/209:20:112
1826966992219,3cyclictest0-21swapper/210:25:102
1826966992219,3cyclictest0-21swapper/209:45:122
182696699220,21cyclictest0-21swapper/211:25:132
182696699220,21cyclictest0-21swapper/211:05:132
182696699220,21cyclictest0-21swapper/208:15:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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