You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-07 - 06:06

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 #4, 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.

Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack4slot6s.osadl.org (updated Thu May 07, 2026 00:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
212221670,3sleep02123-21mailstats19:40:250
943321640,3sleep09430-21ps00:20:250
166421520,3sleep01661-21ps23:50:250
1352521330,4chrt12933-21/usr/sbin/munin00:35:280
1706921140,4chrt17067-21sed20:40:010
1102421130,3sleep011027-21wc22:20:240
25023211214,81sleep025026-21grep19:05:100
2905921030,4sleep029073-21irqstats19:20:160
42021010,3sleep0483-21mailstats23:45:260
299622980,3sleep030001-21cat21:30:020
288152980,4sleep028859-21latency_hist19:20:020
79302970,3sleep07931-21sendmail-mta20:04:330
318752940,4sleep031931-21cat21:35:270
304232840,2sleep030420-21ps21:30:220
301402820,4sleep030167-21/usr/sbin/munin23:35:200
261912824,65sleep026245-21df21:15:120
196982814,8sleep019722-21cat22:55:170
69762800,2sleep07045-21processes22:05:230
122942760,4sleep012299-21ntp_states20:20:220
117892764,60sleep011791-21irqstats00:30:160
184422745,57sleep018460-21memory22:50:170
214412694,54sleep021456-21users23:00:290
2622999628,14cyclictest6111-21users19:55:290
26229996136,16cyclictest14892-21/usr/sbin/munin22:35:270
26229996032,18cyclictest22208-21/usr/sbin/munin23:05:120
26229996015,13cyclictest9359-21/usr/sbin/munin22:15:150
26229996011,16cyclictest21013-21/usr/sbin/munin20:55:270
2622999599,16cyclictest8962-21grep00:20:010
2622999598,17cyclictest30807-21users19:25:300
26229995935,15cyclictest22592-21/usr/sbin/munin21:00:220
26229995932,17cyclictest845-21/usr/sbin/munin19:35:270
26229995932,16cyclictest32088-21/usr/sbin/munin19:30:280
26229995910,14cyclictest2778-21/usr/sbin/munin21:50:140
2622999589,15cyclictest4118-21df21:55:120
2622999588,18cyclictest23434-21/usr/sbin/munin23:10:230
2622999588,15cyclictest19732-21/usr/sbin/munin20:50:110
26229995834,16cyclictest7321-21runrttasks00:12:270
26229995834,16cyclictest4645-21/usr/sbin/munin19:50:220
26229995834,15cyclictest28886-21/usr/sbin/munin23:30:200
26229995811,17cyclictest31482-21ntpq23:40:200
26229995810,16cyclictest14679-21/usr/sbin/munin20:30:150
2622999579,20cyclictest5443-21ntpq00:05:180
2622999579,17cyclictest23614-21/usr/sbin/munin21:05:290
2622999579,16cyclictest8126-21/usr/sbin/munin20:05:150
2622999579,15cyclictest3210-21ntpq19:45:190
2622999578,17cyclictest11873-21basename20:20:000
2622999578,16cyclictest2595-21/usr/sbin/munin23:55:140
2622999578,16cyclictest15705-21/usr/sbin/munin22:40:180
26229995733,15cyclictest13374-21/usr/sbin/munin20:25:140
26229995731,16cyclictest26324-21/usr/sbin/munin23:20:200
26229995726,21cyclictest25424-21/usr/sbin/munin21:10:270
2622999569,16cyclictest17280-21ntp_states22:45:230
2622999569,13cyclictest811-21/usr/sbin/munin21:40:290
2622999567,16cyclictest5375-21/usr/sbin/munin22:00:160
26229995633,15cyclictest11294-21runrttasks00:28:110
26229995632,14cyclictest8384-21/usr/sbin/munin22:10:250
26229995631,15cyclictest12846-21runrttasks22:28:530
26229995618,14cyclictest13720-21vmstat22:30:290
26229995610,15cyclictest27921-21/usr/sbin/munin23:25:290
2622999559,17cyclictest18700-21ntpq20:45:190
2622999557,17cyclictest9404-21/usr/sbin/munin20:10:180
2622999547,16cyclictest26325-21/usr/sbin/munin19:10:290
2622999547,15cyclictest17165-21egrep20:40:100
2622999539,16cyclictest1788-21ntp_states21:45:220
2622999537,15cyclictest24722-21/usr/sbin/munin23:15:160
2622999537,13cyclictest3905-21/usr/sbin/munin00:00:130
26229995310,17cyclictest27569-21df21:20:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional