You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-06 - 11:53

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 100 highest latencies:
System rack8slot4s.osadl.org (updated Mon Apr 06, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8950592232177,18sleep70-21swapper/719:07:057
8951682226185,26sleep40-21swapper/419:08:404
8950192225186,25sleep30-21swapper/319:06:303
8952602216162,18sleep10-21swapper/119:09:571
8950212211178,21sleep50-21swapper/519:06:315
8950612210183,17sleep00-21swapper/019:07:060
8928182209179,19sleep20-21swapper/219:05:082
8949932208180,18sleep60-21swapper/619:06:076
89549799270,25cyclictest0-21swapper/420:40:114
89550599260,25cyclictest1072051-21sh00:15:007
89550399260,3cyclictest1039746-21turbostat23:19:596
89548899260,26cyclictest0-21swapper/123:50:001
89548899260,1cyclictest0-21swapper/123:30:121
89549999250,4cyclictest1034042-21turbostat23:10:005
89549999250,1cyclictest968451-21apt-get21:15:145
895497992521,3cyclictest1039754-21grep23:20:004
89548899250,24cyclictest0-21swapper/121:50:121
89548899250,21cyclictest0-21swapper/123:30:001
895503992423,1cyclictest0-21swapper/621:30:016
895503992422,1cyclictest1078208-21apt-get00:25:126
895499992421,1cyclictest0-21swapper/520:30:005
895494992412,12cyclictest0-21swapper/323:10:123
89549499240,22cyclictest0-21swapper/300:30:123
89548899240,23cyclictest1075355-21apt-get00:20:101
89548899240,23cyclictest1028333-21run-parts23:00:001
89548899240,0cyclictest0-21swapper/122:30:111
89548499240,3cyclictest985228-21apt21:45:000
895505992320,2cyclictest363-21systemd-journal21:20:007
89550599230,23cyclictest0-21swapper/700:00:017
89550599230,22cyclictest1054330-21basename23:44:597
895503992321,1cyclictest1081057-21apt-get00:30:116
895499992321,1cyclictest0-21swapper/523:10:125
89549999230,22cyclictest985652-21apt-get21:45:115
895497992322,1cyclictest962749-21apt-get21:05:124
89549799230,22cyclictest0-21swapper/421:45:124
89549799230,22cyclictest0-21swapper/419:45:014
89549799230,22cyclictest0-21swapper/419:45:014
895494992322,0cyclictest0-21swapper/321:50:113
895494992321,1cyclictest1016881-21cron22:40:003
895494992321,1cyclictest0-21swapper/320:40:113
89549499230,22cyclictest0-21swapper/323:40:123
89549499230,22cyclictest0-21swapper/321:30:113
89549499230,22cyclictest0-21swapper/321:00:123
89549499230,22cyclictest0-21swapper/320:25:133
895490992322,1cyclictest994228-21apt-get22:00:142
89549099230,23cyclictest924923-21munin-run20:00:012
89549099230,1cyclictest1051879-21apt-get23:40:122
895488992320,3cyclictest0-21swapper/119:40:101
895488992320,3cyclictest0-21swapper/119:40:101
895488992320,2cyclictest895798-21apt-get19:10:121
895488992320,2cyclictest1072481-21apt-get00:15:121
895488992320,2cyclictest1060951-21apt-get23:55:121
895488992319,3cyclictest934170-21apt-get20:15:121
89548899230,22cyclictest974175-21apt-get21:25:131
89548899230,21cyclictest0-21swapper/121:35:121
895484992321,1cyclictest988502-21apt-get21:50:120
895484992321,1cyclictest959471-21systemctl21:00:010
895484992321,1cyclictest930631-21apt-get20:10:020
89548499230,22cyclictest0-21swapper/023:10:110
895505992220,1cyclictest948014-21cron20:40:017
895505992220,1cyclictest1016903-21grep22:40:007
89550599220,22cyclictest0-21swapper/722:20:007
89550599220,21cyclictest0-21swapper/722:30:107
89550599220,21cyclictest0-21swapper/721:40:117
89550599220,21cyclictest0-21swapper/720:55:117
89550599220,21cyclictest0-21swapper/720:10:127
89550599220,1cyclictest901798-21idleruntime-cro19:20:017
895503992221,1cyclictest1063928-21apt-get00:00:116
895503992221,1cyclictest0-21swapper/623:40:106
895503992221,0cyclictest0-21swapper/622:15:016
895503992220,2cyclictest953763-21perf20:50:006
895503992220,1cyclictest0-21swapper/621:45:126
89550399220,21cyclictest994228-21apt-get22:00:156
89550399220,21cyclictest1069635-21apt-get00:10:156
89550399220,21cyclictest0-21swapper/622:55:106
89550399220,21cyclictest0-21swapper/622:05:116
89550399220,21cyclictest0-21swapper/619:50:116
89550399220,21cyclictest0-21swapper/619:50:116
89550399220,21cyclictest0-21swapper/619:35:126
89550399220,21cyclictest0-21swapper/619:35:116
89550399220,0cyclictest1014467-21apt-get22:35:116
89550399220,0cyclictest0-21swapper/623:05:126
895499992221,0cyclictest1025890-21apt-get22:55:105
895499992220,1cyclictest1003037-21apt-get22:15:115
89549999220,22cyclictest919634-21apt-get19:50:115
89549999220,22cyclictest919634-21apt-get19:50:115
89549999220,22cyclictest1016902-21munin-run22:39:595
89549999220,21cyclictest0-21swapper/522:25:115
89549999220,21cyclictest0-21swapper/521:35:135
89549999220,21cyclictest0-21swapper/520:55:105
89549999220,21cyclictest0-21swapper/500:00:115
89549999220,1cyclictest922484-21apt-get19:55:115
89549999220,1cyclictest0-21swapper/519:25:135
89549999220,0cyclictest0-21swapper/521:30:125
895497992220,1cyclictest907946-21apt-get19:30:114
895497992220,1cyclictest0-21swapper/421:40:124
895497992220,1cyclictest0-21swapper/421:00:124
89549799220,21cyclictest931320-21apt-get20:10:114
89549799220,21cyclictest0-21swapper/420:45:104
89549799220,1cyclictest0-21swapper/400:10:004
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional