You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-07 - 23:08

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 #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 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  
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 50 highest latencies:
System rack8slot4s.osadl.org (updated Tue Apr 07, 2026 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22266252238175,51sleep60-21swapper/607:08:286
22266102228171,45sleep30-21swapper/307:08:173
22266182227194,21sleep20-21swapper/207:08:232
22266612220158,19sleep40-21swapper/407:08:584
22264592219181,24sleep00-21swapper/007:06:040
22265472214174,25sleep50-21swapper/507:07:225
22266082212182,19sleep10-21swapper/107:08:141
22266052209179,19sleep70-21swapper/707:08:127
2226975992927,1cyclictest2261573-21fwupd08:06:005
222698199260,3cyclictest2256133-21cron08:00:007
2226975992622,4cyclictest2330979-21perf10:10:005
222698199258,4cyclictest0-21swapper/711:24:427
222698199258,4cyclictest0-21swapper/711:02:447
222698199258,4cyclictest0-21swapper/709:56:507
222698199258,4cyclictest0-21swapper/708:17:597
222698199258,3cyclictest0-21swapper/711:46:407
222698199250,24cyclictest2302408-21basename09:20:017
2226978992524,1cyclictest0-21swapper/608:15:016
222696999250,24cyclictest2229911-21install07:15:003
222698199240,23cyclictest1060-21cron11:30:007
222698199240,23cyclictest0-21swapper/711:45:007
222697599240,23cyclictest2385519-21perf11:45:005
222697599240,0cyclictest0-21swapper/509:30:115
222697399240,23cyclictest2354244-21apt-get10:50:114
2226967992421,2cyclictest363-21systemd-journal07:25:002
2226964992421,3cyclictest0-21swapper/108:40:111
222696499240,23cyclictest2336705-21tr10:20:001
2226981992321,1cyclictest0-21swapper/712:25:007
222698199230,22cyclictest2302834-21apt-get09:20:127
222698199230,22cyclictest0-21swapper/709:50:117
2226978992320,2cyclictest2302391-21turbostat09:20:006
222697399230,22cyclictest2259027-21munin-run08:05:004
222697399230,22cyclictest2256150-21turbostat08:00:004
222697399230,0cyclictest0-21swapper/410:55:134
222696999230,22cyclictest2405534-21idleruntime-cro12:20:003
222696999230,22cyclictest2345673-21apt-get10:35:133
222696799230,1cyclictest2317116-21apt-get09:45:122
2226964992321,2cyclictest2261573-21fwupd08:06:011
2226964992320,3cyclictest0-21swapper/111:55:121
222696499230,22cyclictest2248019-21apt-get07:45:131
222696499230,0cyclictest0-21swapper/111:00:121
222698199229,0cyclictest0-21swapper/710:18:487
222698199229,0cyclictest0-21swapper/708:07:017
2226981992222,0cyclictest0-21swapper/711:55:127
2226981992221,1cyclictest2380209-21apt-get11:35:107
2226981992220,1cyclictest2293568-21apt-get09:05:017
2226981992220,1cyclictest0-21swapper/708:45:137
2226981992218,3cyclictest2359507-21cron11:00:007
222698199220,21cyclictest0-21swapper/712:15:147
222698199220,21cyclictest0-21swapper/708:50:127
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional