You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-08-29 - 14:38
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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackeslot3.osadl.org (updated Fri Aug 29, 2025 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1409964996737,29cyclictest1427703-21kworker/1:120:00:151
140996499671,64cyclictest623-21rs:main1
1409964996663,2cyclictest0-21swapper/121:15:501
1409964996342,19cyclictest1408303-21kworker/1:219:10:171
1409964996341,21cyclictest1456928-21kworker/1:121:35:181
1409964996245,15cyclictest885278-1kworker/1:2H22:20:191
1409964996142,18cyclictest1501579-21kworker/1:000:05:001
1409964996131,29cyclictest1437341-21kworker/1:020:35:181
140996499612,56cyclictest1437341-21kworker/1:021:25:141
1409964996041,18cyclictest885278-1kworker/1:2H20:10:161
1409964996041,17cyclictest885278-1kworker/1:2H20:25:011
1409964995944,14cyclictest1427703-21kworker/1:120:05:191
1409964995942,16cyclictest1489657-21kworker/1:123:15:151
1409964995942,16cyclictest1478836-21kworker/1:122:40:151
1409964995938,19cyclictest885278-1kworker/1:2H23:30:011
1409964995843,14cyclictest1511035-21kworker/1:300:15:061
1409964995843,14cyclictest1489657-21kworker/1:123:30:141
1409964995843,14cyclictest1466870-21kworker/1:222:05:171
1409964995843,14cyclictest1437341-21kworker/1:020:32:341
1409964995843,14cyclictest1416079-21kworker/1:019:45:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional