You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-08-31 - 05:19
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 rackdslot4.osadl.org (updated Sun Aug 31, 2025 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134791205170,24phc2sys0-21swapper/319:05:313
131702201168,22sleep10-21swapper/119:07:111
130422200166,24sleep20-21swapper/219:05:312
130462199165,22sleep00-21swapper/019:05:330
544921540,1sleep10-21swapper/120:40:261
731021430,6sleep31368699cyclictest22:55:163
1347918061,10phc2sys0-21swapper/319:10:013
134991680,1ptp4l2384-21irqstats22:45:193
134991590,1ptp4l401ktimersoftd/320:15:293
13742560,3sleep10-21swapper/120:35:121
112712560,4sleep3401ktimersoftd/300:05:293
134991540,1ptp4l401ktimersoftd/319:41:073
13686995011,7cyclictest41-21ksoftirqd/321:14:593
13686994617,3cyclictest41-21ksoftirqd/320:40:273
13686994515,7cyclictest41-21ksoftirqd/321:55:003
13685994438,4cyclictest21516-21cron23:25:002
134991440,0ptp4l401ktimersoftd/319:56:203
13686994329,11cyclictest41-21ksoftirqd/319:45:553
13686994221,3cyclictest41-21ksoftirqd/300:25:213
13686994221,3cyclictest41-21ksoftirqd/300:25:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional