You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-04-23 - 21:54
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 rack8slot4.osadl.org (updated Tue Apr 23, 2024 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19482412250190,19sleep40-21swapper/407:06:314
19481902230170,19sleep00-21swapper/007:05:460
19482172227174,17sleep70-21swapper/707:06:097
19483772222180,33sleep10-21swapper/107:08:291
19482392216186,19sleep20-21swapper/207:06:292
19483642214180,22sleep60-21swapper/607:08:166
19483072211183,18sleep50-21swapper/507:07:275
19482962205174,19sleep30-21swapper/307:07:183
194870999310,28cyclictest0-21swapper/708:50:217
194870999310,0cyclictest0-21swapper/707:55:197
194870299310,30cyclictest2005248-21idleruntime-cro08:50:014
1948684993127,3cyclictest2091688-21idleruntime-cro11:25:000
1948709993028,1cyclictest2083362-21sh11:10:017
1948709993028,1cyclictest2083362-21sh11:10:017
194870999300,0cyclictest0-21swapper/708:30:007
1948697993027,2cyclictest2033413-21apt-get09:40:203
1948697993027,2cyclictest1994164-21cron08:30:013
1948693993028,1cyclictest2125470-21latency_hist12:25:022
194869399300,29cyclictest3986377-21systemd-journal07:40:022
194868899300,2cyclictest1971477-21sh07:50:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional