You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-12-01 - 08:38
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 20 highest latencies:
System rackeslot2.osadl.org (updated Mon Dec 01, 2025 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283706021010,2sleep12837062-21/usr/sbin/munin00:25:261
27159642300,3sleep30-21swapper/323:15:183
2347176992818,2cyclictest2392136-21idleruntime-cro19:45:011
2347176992815,2cyclictest170550irq/121-eno100:15:011
2347175992616,6cyclictest2732625-21/usr/sbin/munin23:25:160
26768712250,2sleep20-21swapper/222:50:292
26768712250,2sleep20-21swapper/222:50:292
2347175992515,6cyclictest2745870-21kthreadcore23:30:220
2347175992213,7cyclictest0-21swapper/021:55:020
2347175992213,5cyclictest2557854-21cpuspeed_turbos21:45:160
2347180992118,1cyclictest0-21swapper/223:05:012
2347176992118,2cyclictest2539787-21dump-pmu-power21:35:001
2347176992114,3cyclictest2667550-21latency22:45:231
2347175992112,5cyclictest2831334-21true00:25:000
302487291200,4phc2sys0-21swapper/320:15:143
2347180992018,1cyclictest0-21swapper/200:40:022
2347180992017,1cyclictest0-21swapper/222:15:012
234717699203,2cyclictest2407712-21kthreadcore19:55:201
2347176992017,2cyclictest2627420-21apt-key22:25:011
2347176992017,2cyclictest2483766-21apt-key21:00:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional