You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-04-16 - 10:12
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 Tue Apr 16, 2024 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
149748499671,2cyclictest0-21swapper/100:14:341
1497484996535,29cyclictest1506469-21kworker/1:119:35:101
1497484996334,28cyclictest957172-1kworker/1:0H19:59:201
1497484996144,15cyclictest957172-1kworker/1:0H23:00:131
1497484996142,17cyclictest1546281-21kworker/1:021:30:061
1497484996058,1cyclictest0-21swapper/122:43:031
1497484996045,14cyclictest1633015-21kworker/1:023:20:151
1497484996045,14cyclictest1633015-21kworker/1:023:20:141
1497484996043,15cyclictest957172-1kworker/1:0H21:10:161
1497484995944,14cyclictest1530861-21kworker/1:221:00:001
1497484995943,15cyclictest1581927-21kworker/1:022:25:181
1497484995943,15cyclictest1581927-21kworker/1:022:15:171
1497484995943,15cyclictest1530861-21kworker/1:221:00:011
1497484995942,15cyclictest1554803-21kworker/1:221:35:161
1497484995843,14cyclictest957172-1kworker/1:0H21:54:331
1497484995843,14cyclictest1663339-21kworker/1:100:05:171
1497484995843,14cyclictest1600665-21kworker/1:122:35:181
1497484995843,14cyclictest1559103-21kworker/1:122:00:141
1497484995843,14cyclictest1516674-21kworker/1:020:20:121
1497484995843,14cyclictest1506469-21kworker/1:119:47:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional