You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-28 - 08:15

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 792 highest latencies:
System rack4slot6s.osadl.org (updated Tue Jul 28, 2026 00:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
827223020,2sleep08273-21munin-plugin-st22:15:000
1556322540,3sleep015560-21cat20:35:280
1010222530,2sleep010100-21ls00:25:280
1234421230,3chrt12342-21df_inode22:30:150
860521210,3chrt8606-21wc22:15:200
2431821120,3chrt24298-21netstat21:10:200
2825921090,3sleep028260-21ntp_states21:25:250
62912967,12sleep06295-21ntp_states20:00:250
226942960,4sleep022605-21/usr/sbin/munin23:10:170
323542950,4sleep032426-21/usr/sbin/munin21:40:280
309362900,3sleep030934-21fgrep21:35:260
20072900,3sleep02070-21ls19:45:010
17592886,67sleep01809-21df23:55:130
254382870,3sleep025478-21if_eth021:15:160
44762869,13sleep0288-21snmpd19:54:230
298872850,3sleep029943-21wc19:25:270
72082807,59sleep07212-21ntp_states00:15:210
201142785,60sleep020169-21awk23:00:160
10652765,58sleep01124-21/usr/sbin/munin21:45:250
61142757,57sleep06112-21ntp_states22:05:220
2470627419,32sleep024784-21sed19:05:260
22322745,58sleep02236-21ntp_states21:50:220
243822690,2sleep024383-21/usr/sbin/munin23:15:270
2543799629,20cyclictest12605-21grep00:35:270
25437996112,17cyclictest14032-21ntp_states20:30:240
25437996035,15cyclictest27916-21/usr/sbin/munin23:30:170
25437996011,17cyclictest4536-21/usr/sbin/munin22:00:190
2543799599,17cyclictest8624-21df20:10:130
2543799599,17cyclictest12458-21/usr/sbin/munin20:25:140
25437995935,15cyclictest29578-21/usr/sbin/munin23:35:300
25437995933,17cyclictest5090-21/usr/sbin/munin19:55:270
25437995933,17cyclictest27198-21/usr/sbin/munin21:20:270
25437995933,16cyclictest25836-21ntp_states19:10:240
2543799589,21cyclictest18437-21sshd20:47:180
2543799589,15cyclictest22784-21/usr/sbin/munin21:05:180
2543799588,19cyclictest21351-21systemctl21:00:000
2543799588,18cyclictest10872-21df_inode00:30:140
25437995833,16cyclictest2234-21/usr/sbin/munin19:45:150
25437995832,15cyclictest15157-21/usr/sbin/munin22:40:210
25437995831,17cyclictest8794-21/usr/sbin/munin00:20:290
25437995811,15cyclictest10997-21/usr/sbin/munin22:25:140
25437995810,15cyclictest28327-21memory19:20:170
25437995810,15cyclictest16448-21ntp_states22:45:240
2543799579,16cyclictest21491-21/usr/sbin/munin21:00:220
2543799579,15cyclictest16330-21/usr/sbin/munin20:40:220
2543799579,15cyclictest11224-21df20:20:120
2543799579,14cyclictest30368-21/usr/sbin/munin23:40:110
2543799577,15cyclictest31653-21/usr/sbin/munin23:45:160
2543799576,17cyclictest17435-21/usr/sbin/munin22:50:240
25437995733,16cyclictest10990-21runrttasks20:19:490
25437995733,14cyclictest5827-21/usr/sbin/munin00:10:180
25437995732,16cyclictest19319-21/usr/sbin/munin22:55:320
25437995732,15cyclictest675-21/usr/sbin/munin23:50:190
25437995731,17cyclictest32041-21/usr/sbin/munin19:35:120
25437995730,16cyclictest25287-21/usr/sbin/munin23:20:140
25437995711,15cyclictest26496-21/usr/sbin/munin23:25:310
25437995710,16cyclictest3066-21/usr/sbin/munin00:00:130
2543799568,18cyclictest9711-21/usr/sbin/munin22:20:140
25437995610,16cyclictest29778-21/usr/sbin/munin21:30:280
25437995610,15cyclictest4951-21users00:05:300
2543799559,14cyclictest30993-21ntp_states19:30:220
2543799558,16cyclictest18991-21basename20:50:150
2543799558,16cyclictest13562-21/usr/sbin/munin22:35:260
2543799558,15cyclictest21320-21/usr/sbin/munin23:05:220
25437995532,15cyclictest7538-21/usr/sbin/munin20:05:200
2543799548,17cyclictest3232-21/usr/sbin/munin21:55:220
2543799538,14cyclictest26884-21/usr/sbin/munin19:15:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional