You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-04 - 04:31

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 50 highest latencies:
System rack8slot4s.osadl.org (updated Sat Jul 04, 2026 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34087842243171,20sleep40-21swapper/419:09:144
34086482236169,21sleep70-21swapper/719:07:167
34088272227189,25sleep00-21swapper/019:09:500
34088112225191,22sleep20-21swapper/219:09:372
34086942222183,25sleep60-21swapper/619:07:556
34087072219186,22sleep10-21swapper/119:08:071
34063102219188,20sleep30-21swapper/319:05:033
34086462214178,24sleep50-21swapper/519:07:135
3409055992920,1cyclictest0-21swapper/322:29:593
340905099270,1cyclictest0-21swapper/119:15:181
340904899260,25cyclictest3486437-21sendmail21:20:000
3409068992522,2cyclictest3512960-21apt22:05:006
3409064992524,1cyclictest3477808-21latency_hist21:05:015
340906499250,3cyclictest3462841-21cat20:40:015
340906499250,12cyclictest0-21swapper/522:04:435
340906499250,12cyclictest0-21swapper/520:47:495
340905999250,25cyclictest3603275-21ntpq00:35:174
340905399250,24cyclictest0-21swapper/200:35:172
340905099250,24cyclictest0-21swapper/119:45:121
340905099250,24cyclictest0-21swapper/119:45:121
340904899250,24cyclictest3592586-21cron00:20:000
340907099240,0cyclictest0-21swapper/700:10:177
340906899240,23cyclictest3439171-21apt-get20:00:036
340906499240,11cyclictest0-21swapper/523:54:325
340905999240,1cyclictest3588514-21ntpq00:10:184
340905399240,3cyclictest3569046-21systemctl23:40:012
340905399240,3cyclictest3569046-21systemctl23:40:002
3409050992420,3cyclictest3464601-21ntpq20:40:181
340905099240,24cyclictest0-21swapper/123:50:171
340905099240,0cyclictest0-21swapper/121:05:121
3409048992422,1cyclictest0-21swapper/021:00:120
340904899240,23cyclictest0-21swapper/021:10:140
3409070992323,0cyclictest0-21swapper/700:35:187
3409070992321,1cyclictest0-21swapper/723:00:177
3409070992321,1cyclictest0-21swapper/719:30:167
340907099230,23cyclictest0-21swapper/719:10:187
340907099230,22cyclictest3551304-21cron23:10:047
340907099230,22cyclictest3499997-21awk21:40:177
340907099230,22cyclictest3443982-21ntpq20:05:187
340907099230,22cyclictest3439482-21tar20:00:007
340907099230,22cyclictest0-21swapper/722:10:117
340907099230,22cyclictest0-21swapper/720:55:187
340906899230,22cyclictest3564967-21ntpq23:30:176
340906899230,22cyclictest3460305-21apt-get20:35:116
340906899230,22cyclictest3445104-21apt-get20:10:036
340906899230,22cyclictest3439262-21appstreamcli20:00:016
340906899230,22cyclictest0-21swapper/622:55:106
340906899230,22cyclictest0-21swapper/622:30:116
340906899230,22cyclictest0-21swapper/620:30:126
340906899230,22cyclictest0-21swapper/619:15:126
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional