You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-13 - 08:34

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 #0, slot #6

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 rack0slot6s.osadl.org (updated Fri Mar 13, 2026 00:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24472082266259,4sleep150-21swapper/1519:09:377
24472082266259,4sleep150-21swapper/1519:09:367
24469322260252,5sleep60-21swapper/619:06:0716
24469322260252,5sleep60-21swapper/619:06:0616
24469182245226,12sleep130-21swapper/1319:05:535
24469182245226,12sleep130-21swapper/1319:05:535
24472102244237,4sleep170-21swapper/1719:09:399
24472102244237,4sleep170-21swapper/1719:09:399
24471622237217,12sleep190-21swapper/1919:09:0011
24471622237217,12sleep190-21swapper/1919:09:0011
24471842236217,12sleep140-21swapper/1419:09:166
24471842236217,12sleep140-21swapper/1419:09:156
24470922236216,12sleep50-21swapper/519:08:0615
24470922236216,12sleep50-21swapper/519:08:0615
24469282235228,4sleep20-21swapper/219:06:0212
24469282235228,4sleep20-21swapper/219:06:0212
24470982234215,12sleep100-21swapper/1019:08:112
24470982234215,12sleep100-21swapper/1019:08:112
24469372234226,5sleep110-21swapper/1119:06:113
24469372234226,5sleep110-21swapper/1119:06:113
24471322233214,12sleep120-21swapper/1219:08:334
24471322233214,12sleep120-21swapper/1219:08:334
24469292233212,13sleep30-21swapper/319:06:0313
24469292233212,13sleep30-21swapper/319:06:0313
24471462229209,12sleep40-21swapper/419:08:4514
24471462229209,12sleep40-21swapper/419:08:4514
24469912226209,9sleep70-21swapper/719:06:4817
24469912226209,9sleep70-21swapper/719:06:4817
24469342224204,12sleep80-21swapper/819:06:0918
24469342224204,12sleep80-21swapper/819:06:0918
24471512223202,13sleep90-21swapper/919:08:5119
24471512223202,13sleep90-21swapper/919:08:5019
24469792223203,12sleep160-21swapper/1619:06:378
24469792223203,12sleep160-21swapper/1619:06:378
24468972218202,9sleep180-21swapper/1819:05:3910
24468972218202,9sleep180-21swapper/1819:05:3810
24469842217198,12sleep00-21swapper/019:06:410
24469842217198,12sleep00-21swapper/019:06:400
24470332212192,12sleep10-21swapper/119:07:221
24470332212192,12sleep10-21swapper/119:07:211
2447577992928,1cyclictest2400528-21kworker/0:1+pm19:11:270
2447577992928,1cyclictest2400528-21kworker/0:1+pm19:11:270
244763199270,16cyclictest3128-21grafana00:39:597
244759799261,24cyclictest0-21swapper/619:11:1616
244759799261,24cyclictest0-21swapper/619:11:1616
2447629992525,0cyclictest0-21swapper/1400:24:586
2447592992512,0cyclictest0-21swapper/400:25:0114
244764499241,21cyclictest472370-21CPU11
244761099241,22cyclictest2656190-21strings23:10:1519
244764499230,22cyclictest2717453-21updatedb00:25:0111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional