You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-06 - 21:42
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
Characteristics of the 10 highest latencies:
System rack3slot0.osadl.org (updated Thu Nov 06, 2025 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
196322880,2sleep31557799cyclictest11:23:153
1556699630,62cyclictest22747-21kworker/0:311:23:200
15579995857,1cyclictest28103-21nfsd11:23:205
1514725027,9sleep60-21swapper/606:52:036
118712500,0sleep311866-21sshd10:33:173
1502624826,8sleep20-21swapper/206:50:232
13042480,0sleep00-21swapper/009:54:380
316032460,0sleep773-21ksoftirqd/709:14:007
285082460,0sleep20-21swapper/209:38:302
166092460,1sleep09-21ksoftirqd/009:34:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional