You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-20 - 06:43

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  TQ-Systems
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 rack3slot3s.osadl.org (updated Sat Jun 20, 2026 00:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
299104123720,1sleep172-21kcompactd01
2796920212952,69sleep30-21swapper/33
279700928451,11sleep20-21swapper/22
279719728156,17sleep00-21swapper/00
279718328163,12sleep10-21swapper/11
32532282480,2sleep30-21swapper/33
2797407992111,7cyclictest0-21swapper/33
279740799201,7cyclictest2948813-21taskset3
2797407992017,1cyclictest0-21swapper/33
279740799201,16cyclictest0-21swapper/33
279740799201,14cyclictest3212368-21chrt3
279740799201,13cyclictest3262910-21chrt3
279740799200,17cyclictest0-21swapper/33
279740799192,13cyclictest3010011-21chrt3
2797407991915,2cyclictest0-21swapper/33
279740799191,15cyclictest0-21swapper/33
279740799191,15cyclictest0-21swapper/33
279740799191,14cyclictest0-21swapper/33
279740799191,14cyclictest0-21swapper/33
279740799191,14cyclictest0-21swapper/33
279740799191,14cyclictest0-21swapper/33
279740799191,14cyclictest0-21swapper/33
279740799191,14cyclictest0-21swapper/33
279740799191,13cyclictest0-21swapper/33
32439512181,4sleep13243962-21ssh1
32006342181,5sleep00-21swapper/00
31991062181,2sleep20-21swapper/22
29652612181,2sleep10-21swapper/11
29258442182,5sleep22925840-21apt-get2
279740799189,6cyclictest3134767-21turbostat3
279740799187,8cyclictest2888634-21turbostat3
2797407991814,2cyclictest0-21swapper/33
2797407991812,3cyclictest0-21swapper/33
279740799181,14cyclictest0-21swapper/33
279740799181,14cyclictest0-21swapper/33
279740799181,14cyclictest0-21swapper/33
279740799181,14cyclictest0-21swapper/33
279740799181,14cyclictest0-21swapper/33
279740799181,14cyclictest0-21swapper/33
279740799181,14cyclictest0-21swapper/33
279740799181,13cyclictest0-21swapper/33
279740799181,13cyclictest0-21swapper/33
279740799181,13cyclictest0-21swapper/33
279740799180,14cyclictest2841410-21turbostat3
279740799180,14cyclictest0-21swapper/33
31165882171,11sleep12925445-21diskmemload1
30647862171,3sleep10-21swapper/11
30077212171,2sleep10-21swapper/11
279740799174,10cyclictest0-21swapper/33
2797407991711,3cyclictest0-21swapper/33
279740799171,13cyclictest0-21swapper/33
279740799171,13cyclictest0-21swapper/33
279740799171,13cyclictest0-21swapper/33
279740799171,13cyclictest0-21swapper/33
279740799171,13cyclictest0-21swapper/33
279740799171,13cyclictest0-21swapper/33
279740799171,12cyclictest0-21swapper/33
279740799171,12cyclictest0-21swapper/33
279740799170,14cyclictest0-21swapper/33
279740799170,14cyclictest0-21swapper/33
279740799170,13cyclictest0-21swapper/33
32357382161,3sleep00-21swapper/00
32175392160,2sleep20-21swapper/22
31798662160,10sleep13180949-21/usr/sbin/munin1
31572752160,1sleep00-21swapper/00
30438372161,11sleep23044611-21kthreadcore2
28154672161,5sleep12815464-21apt-get1
279740799167,6cyclictest2825663-21turbostat3
279740799161,3cyclictest0-21swapper/33
2797407991613,2cyclictest0-21swapper/33
279740799161,12cyclictest0-21swapper/33
279740799160,13cyclictest0-21swapper/33
279740799160,13cyclictest0-21swapper/33
279740799160,13cyclictest0-21swapper/33
31487362151,9sleep02925445-21diskmemload0
30984212151,3sleep02925445-21diskmemload0
30645962151,3sleep02925445-21diskmemload0
30329702150,1sleep20-21swapper/22
29511672151,10sleep12951181-21ssh1
29491722151,9sleep10-21swapper/11
279740799151,5cyclictest29093992sleep33
2797407991512,2cyclictest0-21swapper/33
279740799151,1cyclictest0-21swapper/33
279740799151,12cyclictest0-21swapper/33
279740799151,11cyclictest28942122sleep33
279740799150,13cyclictest0-21swapper/33
279740799150,13cyclictest0-21swapper/33
279740799150,12cyclictest0-21swapper/33
279740799150,12cyclictest0-21swapper/33
31762382141,9sleep02925445-21diskmemload0
30927642141,4sleep23092778-21ssh2
30171912141,2sleep10-21swapper/11
29651132141,8sleep22925445-21diskmemload2
279740799148,3cyclictest2814973-21chrt3
32630672132,6sleep03263193-21diskstats0
32496192131,8sleep03250019-21sed0
32434572131,2sleep20-21swapper/22
32358012130,3sleep12925445-21diskmemload1
31900732131,8sleep13190084-21ssh1
31832392131,8sleep03183249-21ssh0
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional