You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-03 - 06:28

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 50 highest latencies:
System rack4slot6s.osadl.org (updated Mon Aug 03, 2026 00:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2835122500,2sleep028353-21idleruntime22:10:140
1965021620,3sleep019630-21netstat19:30:210
2043621600,3sleep020437-21latency_hist21:40:020
1432221400,3sleep014321-21tr21:15:190
150421360,3sleep01503-21wc20:25:260
1667821240,4chrt16676-21sendmail-msp19:20:000
1026421200,4chrt10262-21awk23:05:200
140949911583,21cyclictest20684-21/usr/sbin/munin19:35:250
2733321140,3chrt27331-21ls20:00:190
140949911282,18cyclictest18079-21/usr/sbin/munin19:25:250
1824021110,4sleep018238-21ntp_states21:30:240
140949911183,15cyclictest3565-21/usr/sbin/munin22:40:140
140949911175,22cyclictest6608-21chrt20:45:230
140949911081,18cyclictest22559-21/usr/sbin/munin19:40:260
140949910983,15cyclictest19694-21seq23:40:420
140949910779,17cyclictest26058-21sort00:05:300
140949910681,15cyclictest11659-21cut23:10:250
140949910681,13cyclictest30145-21systemctl20:10:250
140949910677,17cyclictest16855-21memory21:25:220
140949910581,14cyclictest14316-21sendmail_mailst23:20:250
140949910579,15cyclictest26287-21users22:00:300
140949910577,15cyclictest15965-21runrttasks23:26:540
140949910481,14cyclictest22588-21seq23:53:260
140949910480,14cyclictest15565-21memory21:20:170
140949910479,13cyclictest26162-21/usr/sbin/munin19:55:260
140949910478,15cyclictest9183-21awk20:55:250
140949910477,15cyclictest27927-21sshd00:14:530
140949910462,16cyclictest23806-21sshd23:57:520
140949910380,13cyclictest32296-21irqstats22:25:170
140949910379,13cyclictest1997-21chrt22:33:580
140949910378,15cyclictest3152-21sshd22:37:530
140949910368,19cyclictest23281-21/usr/sbin/munin19:45:120
140949910279,13cyclictest2581-21runrttasks20:30:170
140949910278,15cyclictest14537-21/usr/sbin/munin19:10:260
140949910278,14cyclictest31081-21grep00:25:260
140949910277,13cyclictest21574-21runrttasks21:44:050
140949910272,16cyclictest6195-21df_inode22:50:130
140949910270,20cyclictest12583-21/usr/sbin/munin23:15:320
140949910267,21cyclictest4848-21/usr/sbin/munin22:45:190
140949910259,20cyclictest12857-21ls21:10:150
2483221010,4sleep024848-21ntp_states19:50:210
140949910177,14cyclictest17407-21chrt23:33:140
140949910177,14cyclictest14139-21latency_hist19:10:010
140949910171,17cyclictest31522-21threads20:15:270
140949910170,19cyclictest29541-21seq20:09:350
140949910168,19cyclictest29394-21/usr/sbin/munin00:20:130
140949910166,21cyclictest28081-21/usr/sbin/munin00:15:160
140949910076,14cyclictest374-21/usr/sbin/munin20:20:250
140949910074,15cyclictest509-21sshd00:33:530
140949910068,19cyclictest783-21/usr/sbin/munin00:35:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional