You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-10-25 - 07:48
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 rackdslot3.osadl.org (updated Sat Oct 25, 2025 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137191205171,22phc2sys0-21swapper/319:05:473
15662202169,22sleep00-21swapper/019:09:320
14222202168,23sleep20-21swapper/219:07:462
13072201168,22sleep10-21swapper/119:06:321
2521721410,4sleep1189799cyclictest00:25:301
136991620,1ptp4l401ktimersoftd/322:38:393
265082610,3sleep2189899cyclictest00:30:152
1897995720,15cyclictest25-21ksoftirqd/100:10:111
145062560,5sleep014507-21sed20:40:310
1896995423,8cyclictest9-21ksoftirqd/000:35:000
213582530,2sleep20-21swapper/222:05:142
1896995023,3cyclictest9-21ksoftirqd/000:04:590
1896995022,4cyclictest9-21ksoftirqd/019:15:300
1896995017,6cyclictest9-21ksoftirqd/022:50:000
1896995017,10cyclictest9-21ksoftirqd/020:45:210
1896995012,4cyclictest9-21ksoftirqd/023:30:010
1896994918,11cyclictest9-21ksoftirqd/021:05:200
1896994916,6cyclictest9-21ksoftirqd/021:25:200
1896994916,6cyclictest9-21ksoftirqd/021:25:190
1896994916,4cyclictest9-21ksoftirqd/022:05:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional