You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-05-14 - 22:37

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 Wed May 14, 2025 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6408382242185,17sleep50-21swapper/507:05:465
6408722232170,49sleep10-21swapper/107:06:141
6410872229192,24sleep20-21swapper/207:09:202
6409182227190,24sleep00-21swapper/007:06:540
6386882221181,27sleep30-21swapper/307:05:033
6410562218184,22sleep70-21swapper/707:08:547
6410442210176,22sleep60-21swapper/607:08:456
6411082205177,18sleep40-21swapper/407:09:384
641391992811,0cyclictest0-21swapper/712:04:017
64137699280,27cyclictest713897-21perf09:15:001
64138899270,22cyclictest0-21swapper/611:15:016
641381992622,3cyclictest644603-21latency_hist07:15:003
641371992624,1cyclictest0-21swapper/012:15:010
641388992519,5cyclictest0-21swapper/607:25:006
64138699250,24cyclictest0-21swapper/508:40:005
641382992522,2cyclictest791108-21apt-get11:30:134
64138299250,3cyclictest742711-21idleruntime-cro10:05:004
64138199250,24cyclictest659380-21dump-pmu-power07:39:593
64137199250,1cyclictest0-21swapper/010:55:010
641391992423,1cyclictest0-21swapper/710:15:137
641391992423,1cyclictest0-21swapper/710:15:137
641388992421,2cyclictest0-21swapper/610:10:146
64138899240,22cyclictest0-21swapper/607:55:156
64138899240,21cyclictest674093-21apt-get08:05:156
64138899240,1cyclictest805372-21apt-get11:55:126
64138899240,0cyclictest0-21swapper/609:35:146
64138299240,23cyclictest0-21swapper/409:50:124
64137899240,23cyclictest754915-21idleruntime-cro10:25:012
64137899240,23cyclictest754915-21idleruntime-cro10:25:012
64137199240,23cyclictest763991-21awk10:40:010
641391992323,0cyclictest0-21swapper/710:20:137
641391992323,0cyclictest0-21swapper/710:20:137
64139199230,22cyclictest771328-21ntpq10:50:177
64139199230,22cyclictest0-21swapper/708:50:157
641388992321,1cyclictest0-21swapper/612:05:136
641388992321,1cyclictest0-21swapper/609:45:166
641388992319,3cyclictest0-21swapper/609:20:146
64138899230,22cyclictest662677-21apt-get07:45:136
64138899230,1cyclictest0-21swapper/607:40:146
64138699230,22cyclictest755580-21apt-get10:25:135
64138699230,22cyclictest755580-21apt-get10:25:135
641382992321,1cyclictest823292-21apt-get12:25:084
64138299230,22cyclictest802105-21munin-run11:50:014
641381992321,1cyclictest659829-21apt-get07:40:153
64138199230,2cyclictest702217-21awk08:54:593
64138199230,22cyclictest0-21swapper/307:50:123
64137899230,22cyclictest0-21swapper/209:55:132
641376992322,1cyclictest804942-21idleruntime-cro11:55:011
641376992321,1cyclictest679792-21apt-get08:15:151
641376992316,4cyclictest793536-21munin-run11:35:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional