You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-07-16 - 08:46
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 20 highest latencies:
System rackcslot4.osadl.org (updated Mon Jul 15, 2024 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26347182267187,28sleep00-21swapper/007:06:180
26349592244201,28sleep10-21swapper/107:08:531
27761862700,3chrt2776172-40apt-check11:10:050
27695252680,3sleep12769521-21ntp_states11:00:331
159199680,4rtkit-daemon1590-21rtkit-daemon12:33:590
263517699587,10cyclictest2687094-21diskmemload11:20:001
263517699575,21cyclictest2660961-21apt-get08:05:131
159199560,3rtkit-daemon0-21swapper/108:43:321
159199550,4rtkit-daemon1590-21rtkit-daemon10:50:280
159199550,4rtkit-daemon1590-21rtkit-daemon07:30:291
159199550,4rtkit-daemon1590-21rtkit-daemon07:30:291
159199550,1rtkit-daemon1590-21rtkit-daemon11:47:331
263517699536,14cyclictest2783650-21cat11:20:061
263517699536,11cyclictest2731552-21grep10:10:021
263517699529,12cyclictest2716731-21apt-get09:50:121
263517699527,12cyclictest2659354-21lsb_release08:03:451
263517699526,11cyclictest2687094-21diskmemload09:30:001
263517699526,10cyclictest2751037-21/usr/sbin/munin10:35:271
263517699516,9cyclictest2698410-21sed09:25:011
263517699516,12cyclictest2727923-21date10:05:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional