You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-10-18 - 04:56
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 rackdslot2.osadl.org (updated Sat Oct 18, 2025 00:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137391248203,35phc2sys0-21swapper/319:09:113
257372205170,23sleep20-21swapper/219:05:022
275712203170,22sleep10-21swapper/119:05:451
277562201168,22sleep00-21swapper/019:08:010
137291750,1ptp4l391rcuc/322:25:213
137291740,0ptp4l391rcuc/321:35:263
137291720,1ptp4l391rcuc/321:40:143
137291690,1ptp4l391rcuc/319:40:153
137291680,1ptp4l391rcuc/322:00:003
137291650,1ptp4l0-21swapper/323:15:073
28202996327,5cyclictest33-21ksoftirqd/222:44:592
137291630,1ptp4l0-21swapper/300:18:563
28202996219,6cyclictest33-21ksoftirqd/223:15:132
28202996215,3cyclictest21602-21awk23:25:002
2820099622,11cyclictest15167-21idleruntime-cro19:50:000
137291610,1ptp4l0-21swapper/321:06:493
28202996017,8cyclictest33-21ksoftirqd/222:31:532
132691590,6getstats2820399cyclictest20:33:453
137291580,1ptp4l0-21swapper/319:58:153
28203995727,5cyclictest41-21ksoftirqd/320:25:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional