You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-09-18 - 09:31

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 Fri Sep 18, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9380282255171,26sleep60-21swapper/619:05:426
9382752252174,25sleep00-21swapper/019:09:140
9380272249176,22sleep50-21swapper/519:05:415
9381042244173,23sleep70-21swapper/719:06:487
9382692239167,22sleep30-21swapper/319:09:093
9381762230192,25sleep20-21swapper/219:07:472
9382432226188,25sleep40-21swapper/419:08:464
9382112222182,26sleep10-21swapper/119:08:191
93853999400,0cyclictest0-21swapper/220:00:132
93855199280,27cyclictest977529-21awk20:15:007
93855199270,26cyclictest1036450-21munin-run21:55:017
938540992720,7cyclictest1126042-21grep00:25:013
93855199260,25cyclictest1054282-21perf22:25:017
938546992621,4cyclictest971649-21munin-plugin-st20:05:005
93854299260,25cyclictest0-21swapper/423:10:124
93854299260,1cyclictest0-21swapper/420:30:184
938540992617,7cyclictest0-21swapper/323:10:183
93853699260,3cyclictest986371-21munin-plugin-st20:30:011
938542992520,4cyclictest1125901-21ls00:25:004
93854299250,24cyclictest0-21swapper/421:45:134
93854099250,1cyclictest0-21swapper/322:20:133
93854099250,1cyclictest0-21swapper/320:35:013
93853999250,22cyclictest0-21swapper/219:30:122
93853699250,24cyclictest968734-21idleruntime-cro20:00:001
93853499250,24cyclictest0-21swapper/019:50:120
938551992419,4cyclictest1051292-21munin-run22:20:017
93855199240,1cyclictest953936-21munin-run19:35:007
938548992423,1cyclictest954361-21apt-get19:35:136
93854899240,23cyclictest1024663-21idleruntime-cro21:35:016
93854899240,1cyclictest1101874-21apt-get23:45:126
93854699240,23cyclictest0-21swapper/519:15:195
93854699240,1cyclictest1054699-21apt-get22:25:115
938542992420,4cyclictest0-21swapper/400:10:164
93854299240,3cyclictest953926-21idleruntime-cro19:35:004
938540992421,3cyclictest0-21swapper/319:45:133
938540992419,4cyclictest1028059-21apt-get21:40:133
93854099240,24cyclictest0-21swapper/319:30:123
93854099240,23cyclictest0-21swapper/320:55:123
93854099240,0cyclictest0-21swapper/323:45:123
938539992422,1cyclictest0-21swapper/222:20:132
938539992419,0cyclictest0-21swapper/223:40:132
93853999240,23cyclictest0-21swapper/219:15:132
93853999240,22cyclictest0-21swapper/222:40:142
93853699240,23cyclictest1025095-21apt-get21:35:111
93853699240,23cyclictest0-21swapper/120:05:001
93853499240,23cyclictest1007425-21apt-get21:05:130
93853499240,23cyclictest0-21swapper/000:15:130
938551992322,1cyclictest957320-21apt-get19:40:127
938551992322,1cyclictest0-21swapper/719:55:017
93855199230,2cyclictest1125895-21apt-get00:25:037
93855199230,23cyclictest1125903-21munin-run00:25:007
93855199230,22cyclictest1084179-21apt-get23:15:127
93855199230,22cyclictest0-21swapper/723:50:157
93855199230,22cyclictest0-21swapper/720:15:137
93855199230,0cyclictest0-21swapper/720:00:137
938548992323,0cyclictest0-21swapper/622:15:206
938548992323,0cyclictest0-21swapper/619:10:116
938548992323,0cyclictest0-21swapper/600:10:216
938548992322,1cyclictest969139-21apt-get20:00:136
93854899230,22cyclictest998584-21apt-get20:50:136
93854899230,22cyclictest1122908-21turbostat00:20:006
93854899230,22cyclictest0-21swapper/623:15:126
93854899230,22cyclictest0-21swapper/619:55:016
93854899230,22cyclictest0-21swapper/600:00:136
938546992322,1cyclictest1024671-21munin-run21:35:015
93854699230,22cyclictest945538-21apt-get19:20:135
93854699230,22cyclictest367-21systemd-journal23:45:005
93854699230,22cyclictest1-21systemd20:40:015
93854699230,22cyclictest1006993-21turbostat21:05:015
93854699230,22cyclictest0-21swapper/523:00:145
93854699230,22cyclictest0-21swapper/521:45:135
938542992322,1cyclictest1050102-21ntpq22:15:204
938542992320,3cyclictest1110725-21apt-get00:00:134
93854299230,23cyclictest0-21swapper/422:50:144
93854299230,22cyclictest0-21swapper/419:20:134
93854299230,17cyclictest1-21systemd19:20:004
938540992317,6cyclictest1092585-21cron23:30:003
93854099230,23cyclictest1017634-21ntpq21:20:193
93854099230,23cyclictest1017634-21ntpq21:20:193
93854099230,23cyclictest0-21swapper/319:50:123
93854099230,22cyclictest1066522-21apt-get22:45:133
93854099230,22cyclictest1030996-21apt-get21:45:133
938539992321,2cyclictest1048759-21apt-get22:15:132
938539992321,2cyclictest0-21swapper/219:45:132
938539992320,0cyclictest0-21swapper/222:10:122
938539992319,0cyclictest0-21swapper/223:15:122
938539992318,1cyclictest0-21swapper/200:25:192
93853999230,22cyclictest1033933-21apt-get21:50:112
93853999230,22cyclictest0-21swapper/223:45:182
93853999230,22cyclictest0-21swapper/220:50:132
93853999230,22cyclictest0-21swapper/220:05:142
93853999230,22cyclictest0-21swapper/219:50:122
93853999230,22cyclictest0-21swapper/219:40:132
93853999230,22cyclictest0-21swapper/219:35:122
93853999230,22cyclictest0-21swapper/200:05:142
93853999230,20cyclictest0-21swapper/222:45:142
93853999230,1cyclictest0-21swapper/200:10:052
938536992323,0cyclictest0-21swapper/120:20:171
938536992319,3cyclictest1083768-21perf-exec23:15:001
93853699230,23cyclictest0-21swapper/123:30:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional