You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-04-03 - 13:16
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 Thu Apr 03, 2025 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2609950996143,17cyclictest2665637-21kworker/1:022:10:091
2609950996140,20cyclictest2323756-1kworker/1:2H21:10:001
2609950996045,14cyclictest2674359-21kworker/1:122:50:091
2609951995943,4cyclictest2677316-21kworker/2:100:09:592
2609950995944,14cyclictest2696544-21kworker/1:100:20:001
2609950995940,18cyclictest2627161-21kworker/1:020:05:161
2609950995940,17cyclictest2608474-21kworker/1:119:10:151
2609950995843,14cyclictest2678911-21kworker/1:223:18:401
2609950995843,14cyclictest2651174-21kworker/1:021:20:011
2609950995843,14cyclictest2629769-21kworker/1:120:10:271
2609950995843,14cyclictest2615196-21kworker/1:119:40:001
2609950995843,14cyclictest2615196-21kworker/1:119:25:151
2609950995841,16cyclictest2684511-21kworker/1:023:30:131
2609950995841,16cyclictest2633120-21kworker/1:020:35:151
2609950995841,16cyclictest2615196-21kworker/1:119:40:151
2609950995840,17cyclictest2641667-21kworker/1:121:10:181
2609950995840,17cyclictest2615196-21kworker/1:119:30:191
2609950995837,19cyclictest2633120-21kworker/1:020:30:181
2609950995830,27cyclictest2611401-21kworker/1:019:15:001
2609950995742,14cyclictest2696544-21kworker/1:100:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional