You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2025-12-09 - 14:14

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 #5, slot #7

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.

Total number of samples: 50.5 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 20 highest latencies:
System rack5slot7s.osadl.org (updated Tue Dec 09, 2025 00:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6981224312192,95sleep00-21swapper19:09:340
70729916625,21cyclictest18017-21latency_hist23:30:080
70729916418,120cyclictest25789-21munin-run21:00:060
70729916018,24cyclictest22343-21munin-run20:40:020
70729915917,26cyclictest29236-21apt21:20:020
70729915715,118cyclictest6659-21munin-run22:20:010
70729915617,116cyclictest20943-21df20:30:270
70729915617,113cyclictest23993-21apt-get00:05:580
70729915521,110cyclictest11094-21grep22:45:490
70729915518,115cyclictest17925-21apt-get23:30:390
70729915517,116cyclictest1606-21munin-run21:50:010
70729915516,38cyclictest14075-21munin-run19:50:060
70729915516,25cyclictest20088-21apt-get23:40:140
70729915417,106cyclictest1706-21apt-get21:50:190
70729915416,115cyclictest25785-21apt-get21:00:370
7072991529,25cyclictest22338-21apt-get20:41:500
70729915218,25cyclictest24185-21munin-run20:50:010
70729915218,105cyclictest25915-21apt-get00:15:190
70729915216,22cyclictest19689-21apt-get23:37:040
70729915216,112cyclictest14073-21apt-get19:51:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional