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2026-04-13 - 19:15

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, 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.
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 all highest latencies:
System rack3slot3s.osadl.org (updated Mon Apr 13, 2026 12:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
280378212158,59sleep30-21swapper/33
28057028772,10sleep20-21swapper/22
28048428057,6sleep00-21swapper/00
28054927861,11sleep10-21swapper/11
6624412520,4sleep2662408-21ssh2
6714812300,3sleep30-21swapper/33
3099782231,11sleep1309954-31find1
280753992117,2cyclictest0-21swapper/33
280753992116,3cyclictest0-21swapper/33
28075399211,16cyclictest772319-21taskset3
28075399211,15cyclictest677778-21taskset3
280753992110,8cyclictest0-21swapper/33
5945402201,7sleep2411849-21diskmemload2
4788652202,9sleep1411849-21diskmemload1
28075399202,13cyclictest553192-21chrt3
280753992017,1cyclictest0-21swapper/33
280753992016,2cyclictest0-21swapper/33
280753992016,2cyclictest0-21swapper/33
280753992014,3cyclictest481471-21taskset3
28075399201,16cyclictest0-21swapper/33
28075399201,16cyclictest0-21swapper/33
28075399200,16cyclictest655869-21chrt3
28075399200,12cyclictest0-21swapper/33
28075399194,13cyclictest628995-21taskset3
28075399191,15cyclictest0-21swapper/33
28075399191,15cyclictest0-21swapper/33
28075399191,15cyclictest0-21swapper/33
28075399191,15cyclictest0-21swapper/33
28075399191,14cyclictest0-21swapper/33
28075399191,14cyclictest0-21swapper/33
28075399191,14cyclictest0-21swapper/33
28075399191,14cyclictest0-21swapper/33
28075399191,14cyclictest0-21swapper/33
28075399190,5cyclictest614984-21taskset3
28075399190,5cyclictest614984-21taskset3
5882222180,2sleep00-21swapper/00
28075399183,13cyclictest0-21swapper/33
28075399183,12cyclictest0-21swapper/33
280753991815,2cyclictest0-21swapper/33
280753991814,2cyclictest0-21swapper/33
28075399181,14cyclictest0-21swapper/33
28075399181,14cyclictest0-21swapper/33
28075399181,14cyclictest0-21swapper/33
28075399181,14cyclictest0-21swapper/33
28075399181,14cyclictest0-21swapper/33
28075399181,14cyclictest0-21swapper/33
28075399181,14cyclictest0-21swapper/33
28075399181,14cyclictest0-21swapper/33
28075399181,14cyclictest0-21swapper/33
28075399181,13cyclictest0-21swapper/33
28075399181,13cyclictest0-21swapper/33
28075399181,11cyclictest0-21swapper/33
280753991810,5cyclictest0-21swapper/33
7340012171,3sleep20-21swapper/22
7174812170,1sleep20-21swapper/22
6461622172,8sleep0646176-21ssh0
6327942171,8sleep2634274-21cut2
5045062171,11sleep1504657-21ntpq1
28075399172,11cyclictest321016-21chrt3
280753991715,1cyclictest0-21swapper/33
28075399171,13cyclictest0-21swapper/33
28075399171,13cyclictest0-21swapper/33
28075399171,13cyclictest0-21swapper/33
28075399170,14cyclictest0-21swapper/33
7545832161,5sleep0411849-21diskmemload0
6922372169,3sleep0692248-21ssh0
6035562161,3sleep20-21swapper/22
5970372161,5sleep1411849-21diskmemload1
4625752161,3sleep00-21swapper/00
4122602161,11sleep2411849-21diskmemload2
28075399169,6cyclictest0-21swapper/33
28075399163,1cyclictest0-21swapper/33
28075399162,4cyclictest3842662sleep33
28075399161,14cyclictest0-21swapper/33
280753991611,3cyclictest0-21swapper/33
28075399160,14cyclictest0-21swapper/33
28075399160,13cyclictest0-21swapper/33
28075399160,13cyclictest0-21swapper/33
28075399160,13cyclictest0-21swapper/33
28075399160,13cyclictest0-21swapper/33
7641442156,2sleep10-21swapper/11
7186772150,3sleep00-21swapper/00
7083392151,3sleep2411849-21diskmemload2
6929992151,9sleep1411849-21diskmemload1
6738282151,3sleep0673842-21ssh0
6592092151,4sleep0660805-21cut0
6100892151,9sleep1610150-21ntpq1
5522712151,3sleep0411849-21diskmemload0
5326722150,2sleep20-21swapper/22
5274362151,10sleep1528872-21grep1
5230292151,4sleep0411849-21diskmemload0
5230292151,4sleep0411849-21diskmemload0
5000422153,1sleep1171rcu_preempt1
4449062151,2sleep20-21swapper/22
4287112151,2sleep20-21swapper/22
28075399158,2cyclictest0-21swapper/33
28075399151,12cyclictest0-21swapper/33
28075399151,12cyclictest0-21swapper/33
28075399150,12cyclictest0-21swapper/33
28075399150,11cyclictest0-21swapper/33
28075399150,11cyclictest0-21swapper/33
7632622141,3sleep1763273-21ssh1
7524212141,2sleep20-21swapper/22
6393982141,9sleep1411849-21diskmemload1
5709662141,7sleep1571047-21fschecks_time1
5669352140,3sleep2411849-21diskmemload2
5522432141,3sleep2552257-21ssh2
5078032141,2sleep00-21swapper/00
5069272141,2sleep20-21swapper/22
4794782141,2sleep20-21swapper/22
4727542140,2sleep134-21ksoftirqd/11
4565452141,2sleep20-21swapper/22
4003282141,4sleep0400437-21/usr/sbin/munin0
3949942141,4sleep1395082-21ps1
3625852142,6sleep2362666-21ntpq2
3322212141,9sleep1333330-21kthreadcore1
280753991411,2cyclictest0-21swapper/33
28075399141,10cyclictest0-21swapper/33
28075399140,12cyclictest0-21swapper/33
28075399140,11cyclictest0-21swapper/33
7470642131,8sleep10-21swapper/11
7450102132,5sleep014-21ksoftirqd/00
7437492131,3sleep1743766-21ssh1
7206932131,5sleep2722227-21kthreadcore2
6732402131,6sleep2411849-21diskmemload2
6288732131,5sleep10-21swapper/11
6223202131,3sleep1622334-21ssh1
6223202131,3sleep1622334-21ssh1
5696882130,8sleep00-21swapper/00
5675872131,8sleep1567598-21ssh1
5181922131,6sleep2518325-21diskstats2
5181922131,6sleep2518325-21diskstats2
4904842131,8sleep1411849-21diskmemload1
4797562131,8sleep0479766-21ssh0
4478722131,7sleep1447905-21apt-get1
280753991310,1cyclictest0-21swapper/33
7715682121,5sleep00-21swapper/00
7592382121,5sleep2759393-21ntpq2
7376792121,6sleep2411849-21diskmemload2
7013152121,5sleep00-21swapper/00
7013152121,5sleep00-21swapper/00
6538592121,5sleep0653910-21ntpq0
6511312121,7sleep10-21swapper/11
6206882121,5sleep00-21swapper/00
6206882121,5sleep00-21swapper/00
6138662120,3sleep2613879-21ssh2
5873372121,5sleep1411849-21diskmemload1
5534562121,7sleep0553568-21grep0
5221902121,5sleep1522224-21ntpq1
5221902121,5sleep1522224-21ntpq1
4730462120,8sleep0473056-21ssh0
4349942121,6sleep1411849-21diskmemload1
4215762121,8sleep10-21swapper/11
3790072121,7sleep2379079-21pmu-power2
7617342111,5sleep00-21swapper/00
7343972111,4sleep1411849-21diskmemload1
7259532111,5sleep1411849-21diskmemload1
7178262111,4sleep1411849-21diskmemload1
6938112111,5sleep2694033-21hddtemp_smartct2
6938112111,5sleep2694033-21hddtemp_smartct2
6812912111,4sleep2411849-21diskmemload2
6759712111,5sleep190-21kswapd01
6663352111,4sleep1411849-21diskmemload1
6367982112,4sleep00-21swapper/00
6294152110,2sleep00-21swapper/00
6237282111,7sleep2623799-21grep2
5923842110,3sleep1592471-21ssh1
5172192111,3sleep20-21swapper/22
5172192111,3sleep20-21swapper/22
5148002111,3sleep00-21swapper/00
5148002111,3sleep00-21swapper/00
4880172112,2sleep2171rcu_preempt2
4828062111,4sleep00-21swapper/00
4716632111,4sleep2421rcuc/22
4593142111,3sleep10-21swapper/11
4484882111,6sleep2449260-21cut2
4438222111,3sleep10-21swapper/11
4377082111,4sleep2411849-21diskmemload2
4293402111,5sleep0429727-21apt-config0
4186512110,1sleep00-21swapper/00
4108812111,5sleep0410939-21ntpq0
3804922111,5sleep1380702-21hddtemp_smartct1
3801982111,4sleep2380217-21apt-get2
3197672111,5sleep0319821-21ntpq0
3195762111,5sleep2319717-21ntpq2
3099702111,6sleep0309954-31find0
3087042111,5sleep2308757-21ntp_states2
3086532111,5sleep1308702-21ntpq1
2992272110,7sleep2299239-21cpu2
2890102111,6sleep0290708-21kthreadcore0
2890102111,6sleep0290708-21kthreadcore0
2850472111,5sleep2285100-21ntp_states2
2815802111,6sleep1283252-21kthreadcore1
7795432101,4sleep0411849-21diskmemload0
7729672101,3sleep20-21swapper/22
7372322101,3sleep00-21swapper/00
7102072101,3sleep1411849-21diskmemload1
7007702101,4sleep1411849-21diskmemload1
7007702101,4sleep1411849-21diskmemload1
6893782101,4sleep2689636-21users2
6727232101,4sleep1411849-21diskmemload1
6485052101,4sleep1411849-21diskmemload1
6210192101,3sleep2411849-21diskmemload2
6210192101,3sleep2411849-21diskmemload2
6114692100,1sleep00-21swapper/00
6043872101,3sleep00-21swapper/00
5863932101,2sleep20-21swapper/22
5839172101,4sleep0584110-21cat0
5777322101,3sleep20-21swapper/22
5761142101,5sleep00-21swapper/00
5614602101,3sleep20-21swapper/22
5492762101,3sleep10-21swapper/11
5433532101,3sleep10-21swapper/11
5416922101,3sleep20-21swapper/22
5359912101,6sleep00-21swapper/00
5309542101,5sleep0531016-21ntpq0
4970622101,2sleep20-21swapper/22
4969762101,3sleep00-21swapper/00
4531432101,3sleep00-21swapper/00
4363522101,3sleep00-21swapper/00
4064142101,3sleep00-21swapper/00
3600822101,5sleep0361847-21kthreadcore0
3372822101,4sleep1337385-21perl1
3209942101,4sleep2321013-21apt-get2
2992152100,6sleep1299225-21find1
777262291,3sleep10-21swapper/11
764251291,3sleep2764275-21apt-get2
726647291,4sleep0726661-21ssh0
707604290,1sleep00-21swapper/00
681525291,2sleep00-21swapper/00
655135290,4sleep2411849-21diskmemload2
646737290,2sleep20-21swapper/22
560616290,1sleep10-21swapper/11
513689290,5sleep1513759-21sh1
513689290,5sleep1513759-21sh1
446714291,2sleep00-21swapper/00
417457291,2sleep10-21swapper/11
390561291,4sleep2390591-21perf2
382300291,5sleep0384052-21latency0
362991291,4sleep1363203-21sed1
347656291,2sleep00-21swapper/00
331391291,4sleep01-21systemd0
312823290,1sleep20-21swapper/22
299185291,3sleep0298688-21apt-get0
295198291,5sleep0296995-21kthreadcore0
293136290,1sleep10-21swapper/11
293136290,1sleep10-21swapper/11
280913291,2sleep00-21swapper/00
396165281,3sleep2396202-21cpu2
390821280,3sleep20-21swapper/22
385513281,3sleep0385532-21apt-get0
375425281,3sleep0376526-21tr0
368991281,3sleep2369133-21latency_hist2
368722280,1sleep00-21swapper/00
347678281,3sleep1347834-21cstates1
346372281,2sleep20-21swapper/22
331059280,1sleep20-21swapper/22
315951281,4sleep1316067-21grep1
304562280,2sleep00-21swapper/00
292453281,3sleep2292597-21mailstats2
292453281,3sleep2292597-21mailstats2
411615270,1sleep20-21swapper/22
401497270,2sleep20-21swapper/22
393132271,3sleep0394722-21/usr/sbin/munin0
379755270,1sleep10-21swapper/11
363942270,2sleep10-21swapper/11
357357270,1sleep20-21swapper/22
352983270,2sleep00-21swapper/00
347337270,1sleep10-21swapper/11
341776270,1sleep00-21swapper/00
325722270,1sleep00-21swapper/00
298384270,1sleep10-21swapper/11
411515260,2sleep10-21swapper/11
400168260,2sleep10-21swapper/11
374158260,4sleep10-21swapper/11
370382261,2sleep00-21swapper/00
353723261,2sleep10-21swapper/11
352613260,1sleep20-21swapper/22
347045260,1sleep00-21swapper/00
336562260,1sleep20-21swapper/22
336550260,4sleep00-21swapper/00
325756260,1sleep10-21swapper/11
297868260,2sleep20-21swapper/22
406420250,2sleep10-21swapper/11
373162250,1sleep20-21swapper/22
336999250,2sleep20-21swapper/22
326905251,1sleep10-21swapper/11
385535240,1sleep10-21swapper/11
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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